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Engineering Construction Standard Full-text Information System
National Standard of the People's Republic of China
Design Specification for Factory and Mine Roads
GBJ22—87
Engineering Construction Standard Full-text Information System
W Engineering Construction Standard Full-text Information System
National Standard of the People's Republic of China
Design Specification for Factory and Mine Roads
GBJ22—87
Editor Department: Ministry of Transport of the People's Republic of China Approval Department: State Planning Commission of the People's Republic of China Implementation Date: August 1988 On August 1, 2017
Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
Notice on the Release of "Design Specifications for Factory and Mine Roads" Jibiao [1987] No. 2366
According to the former State Construction Commission (81) Jianfa Shezi No. 546 "Notice on Issuing the Plan for the Compilation and Revision of National Standards for Engineering Construction from 1982 to 1985", the "Design Specifications for Factory and Mine Roads" TJ22-77 (Trial) revised by the Ministry of Communications and relevant departments has been revised and has been reviewed by relevant departments. The revised "Design Specifications for Factory and Mine Roads" GBJ22-87 is now approved as a national standard and will be implemented from August 1, 1988. The original "Design Specifications for Factory and Mine Roads" TJ22-77 (Trial) will be abolished at the same time.
This specification is managed by the Ministry of Communications, and the Ministry of Communications Highway Planning and Design Institute is responsible for specific interpretation and other work, and the China Planning Press is responsible for publication and distribution. State Planning Commission
December 15, 1987
Engineering Construction Standards Full Text Information System
Engineering Construction Standards Full Text Information System
Revision Notes
This specification is based on the Notice No. 546 of the former National Capital Construction Commission (81) Jianfashe, edited by our department, and specifically revised by the Highway Planning and Design Institute of the Ministry of Communications in conjunction with relevant design, scientific research and colleges and universities to revise the original "Design Specifications for Factory and Mine Roads" TJ22-77.
During the revision process, a relatively extensive investigation and research was conducted, summarizing the construction and use experience of factory and mine roads over the years, absorbing relevant scientific research results, and soliciting opinions from relevant units across the country for many times. Finally, our department and relevant departments reviewed and finalized the draft. This specification is divided into seven chapters and eight appendices, and the main contents are: general principles, routes, roadbed, pavement, bridges and culverts, route intersections, facilities along the line and other projects. During the implementation of this specification, we hope that all relevant units will pay attention to accumulating information, summarizing experience, and send any opinions and relevant information that need to be modified or supplemented to our Highway Planning and Design Institute (Beijing Dongsi Qianchaomian Hutong) at any time for reference in future revisions.
Ministry of Transport
July 1987
Engineering Construction Standards Full Text Information System
Engineering Construction Standards Full Text Information System
Chapter 1
Chapter 2
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Section 1
Section 2
Section 3
Section 4
Section Chapter Three
......
General Provisions
Roads outside the factory
Roads inside the factory
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Open-pit mine roads
Section 1
Section 2
Section 3
Section 4
Section 5
Section 6
Section 7
Chapter 4
-General Provisions
Road Subgrade height
Subgrade cross section
Subgrade compaction, protection and reinforcement
Subgrade drainage
Subgrade under special conditions
Road land
Section 1
Section 2
Section 3
Section 4
Section 5
Chapter V
......
General provisionswwW.bzxz.Net
Flexible pavement
Cement concrete Concrete pavement
Pavement reconstruction
Sidewalk
Section 1
Section 2
Section 3
Section 4
Section 5
General provisions
Bridge and culvert location
Bridge and culvert aperture
Bridge and culvert clearance
Load standard
Engineering construction standard full-text information system
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Engineering Construction Standard Full-text Information System
Section 6 Bridge and Culvert Structure
Section 7
Section 8
Bridge and Culvert Foundation
Bridge Deck Pavement, Drainage and Waterproofing Layer
Section 9
Adjustment structures and protective projects
Chapter 6 Route intersections
Section 1 Plane intersections
Section 2
Graduate intersections
Chapter 7
Facilities along the line and other projects
Section 1
Section 2
Section 3
Section 4
Section 5
Appendix 2
Appendix 3
Appendix 4
Appendix Five
Appendix Six
Appendix Seven
Appendix Eight
Safety Facilities
Ancillary Facilities
Ferry Terminal
Greening:
Building Limit of Factory and Mine Roads
Mistaking Lanes
Calculation of Super-elevation Easing Section Length
Calculation of Horizontal Clearance
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Parameters of heavy-duty dump trucks for pavement design 0000000000
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Comparison and conversion table of customary measurement units and legal measurement units (113) Explanation of terms used in this specification
Additional explanation
Engineering 4 Construction Standard Full Text Information System
...... (115)
Engineering Construction Standard Full Text Information System
Chapter 1 General
Article 1.0.1 This specification is specially formulated to implement the relevant national policies and guidelines in the design of factory and mine roads, starting from the overall situation, according to the overall plan of factories and mines, taking a comprehensive approach, and reasonably arranging them, and achieving advanced technology, economic rationality, safety and applicability, and ensuring quality.
Article 1.0.2 This specification applies to the design of newly built and rebuilt factory and mine roads, and does not apply to the design of forest roads.
Article 1.0.3 Factory and mine roads should be divided into off-site roads, on-site roads and open-pit mine roads according to the following provisions.
1. Off-site roads are external roads connecting factories and mines with highways, urban roads, stations, ports, raw material bases, other factories and mines, etc.; or connecting roads between the scattered factory (field) areas, residential areas, etc. of the factory and mine enterprises (except open-pit mines), or auxiliary roads leading to various auxiliary facilities outside the factory and mine enterprises (except open-pit mines). 2. Factory roads are internal roads in factory (field) areas, warehouse areas, station areas, port areas, etc.
3. Open-pit mine roads are roads for dump trucks to travel between mining sites and unloading points within the mining area, and between factory (field) areas; or roads for various types of vehicles to travel to affiliated factories (workshops) and various auxiliary facilities. Article 1.0.4 The design of factory and mine roads shall adhere to the principle of land conservation, occupy no or less cultivated land, facilitate farmland irrigation and drainage, attach importance to soil and water conservation and environmental protection, implement the principle of adapting measures to local conditions and using local materials, make full use of industrial by-products and waste residues, and reduce the cost of the project.
Article 1.0.5 The design of factory and mine roads shall be suitable for the production (including maintenance and installation) and other transportation needs of factory and mine enterprises. The transportation of oversized goods (large and heavy items) during the capital construction of factories and mines may be appropriately considered according to specific circumstances. Engineering Construction Standard Full Text Information System
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The adoption of factory and mine road grades and their main technical indicators shall be determined based on the scale of factories and mines, enterprise types, road properties, use requirements (including road service life), traffic volume (including pedestrians), vehicle types and models, and comprehensive consideration of future development. When the road is long and the conditions along the line vary greatly, it can be designed in sections according to different grades and technical indicators.
The design of factory and mine roads that need to be built in stages should ensure that the early stage projects can still be fully utilized in the later stage.
No. 1.0.Article 6 The design of factory and mine roads that need to be rebuilt should make full and reasonable use of existing roads, bridges and culverts. When the local sections of the existing roads are restricted by conditions and do not meet the requirements of this specification, individual technical indicators specified in this specification may be appropriately changed on the premise of technical and economic comparison and taking corresponding measures to ensure safe passage, but they must be approved by the design approval department; when the original road cannot be used and needs to be rerouted, the rerouted section should be designed as a new factory and mine road. Article 1.0.7 The design of factory and mine roads should create favorable conditions for regular maintenance, upkeep and greening work after the road is built. Article 1.0.8 The construction limits of factory and mine roads shall comply with the provisions of Appendix 1. No components shall be allowed to intrude within the construction limits. Article 1.0.9 In addition to complying with the provisions of this specification, the design of factory and mine roads shall also comply with the requirements of current standards and specifications for hygiene, fire prevention, earthquake resistance, etc., and refer to the current design specifications for other relevant road projects. Engineering 2 Construction Standard Full Text Information System
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Chapter 2 Road
Section 1 General Provisions
Article 2.1.1 The route design of factory and mine roads shall comply with the requirements of the overall planning or general layout of the factory and mine enterprises, and shall reasonably utilize the terrain and correctly apply technical indicators according to the nature and use requirements of the road.
Article 2.1.2 The route design of factory and mine roads shall comprehensively consider the horizontal, vertical and horizontal conditions, and ensure that the horizontal plane is smooth, the vertical slope is balanced, and the horizontal plane is reasonable. The route design shall not damage important historical relics, and less houses shall be demolished, and seismic stations and other important landforms shall be avoided.
Article 2.1.3 For sections where vehicles that are highly destructive to the road surface (such as crawler tractors, etc.) are often used, auxiliary roads should be set up or other measures should be taken. Roads for special purposes (such as special test tracks, etc.) can be designed according to specific conditions. Article 2.1.4 The roads outside the factory should avoid areas with poor geology and underground active goafs, not press or press less underground mineral resources, and should not pass through dangerous areas of blasting without safety measures.
The design of roads outside the factory should be shared by factories and mines along the line, and take into account the needs of local transportation.
Article 2.1.5 The design of roads inside the factory should be conducive to production and convenient for life. The plane layout of the roads inside the factory should be parallel to the axis of the building, and should comply with the requirements of relevant regulations such as civil air defense and vibration prevention. The longitudinal section design of the roads inside the factory should be coordinated with the vertical design inside the factory and the design of the buildings (structures), pipelines, and railways inside the factory. Article 2.1.6 The design of open-pit mine roads should be based on the mine topography, geology, mining boundaries, mining advancement direction, the elevation of each mining step (stage), the location of the unloading point and the waste rock dump (dumping site), and closely cooperate with the mining process, comprehensively consider the requirements of hillside mining or deep mining, and reasonably lay out the route. When the topography or geology is complex, after the line is determined on paper, it should be verified and corrected on site.
In the mining boundary line of the mine, it is advisable to use excavated roadbed. Article 2.1.7 The classification of large, medium and small factories and mines should be implemented in accordance with the current relevant regulations.
Section 2 Off-site Roads
Article 2.2.1 The design of off-site roads within the planning scope of the urban road network should be implemented in accordance with the current design specifications for urban roads: The design of off-site roads within the planning scope of the highway network should be implemented in accordance with the current design specifications for highways. The design of off-site roads outside the above-mentioned planning scope shall be implemented in accordance with this specification. Article 2.2.2 The main technical indicators of off-site roads shall be adopted in accordance with the provisions of Table 2.2.2.
Article 2.2.3 The adoption of off-site road grades shall comply with the following provisions: 1. For external roads in national key factories and mines of great significance, which require separate lanes for vehicles, partially control access, and partially have grade-separated intersections, and have an annual average daily two-way vehicle traffic volume of more than 5,000 vehicles, first-class off-site roads shall be adopted. 2. For the main external roads of large joint enterprises, steel mills, oil fields, coal fields, ports, etc., when the annual average daily two-way traffic volume of various vehicles converted into trucks is 5,000 to 2,000 vehicles, second-class off-site roads shall be adopted. 3. For external roads of large and medium-sized factories and mines, external roads with busy transportation of small factories and mines, and connecting roads with busy transportation, when the annual average daily two-way traffic volume of various vehicles converted into trucks is 2,000 to 200 vehicles, third-class off-site roads shall be adopted.
4. For external roads of small factories and mines and liaison roads with light transportation, when the annual average daily two-way traffic volume of various vehicles converted into heavy-duty trucks is less than 200 vehicles, it is advisable to use Class IV external roads.
V. Road leading to various auxiliary facilities outside the factory and mine enterprises (such as water source, main substation Engineering Construction Standard Full Text Information System
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Grade of roads outside the factory
Calculation of driving speed (km/h))
Pavement width (m)
Roadbed width (m)
Limited minimum circular curve radius (m)
General minimum circular curve radius (m)
Minimum circular curve radius without superelevation (m) Stopping sight distance (m)
Meeting sight distance (m)
Maximum longitudinal slope (%)
Note: ① The road width in the table refers to the width of the carriageway. Ping
4,000
1,500
Main technical indicators of off-site roads
12(10)
2,500
②The radius of the circular curve of the auxiliary road can be 12m in the section with difficult engineering. ③The values in brackets in the table should be adopted in accordance with the provisions of Article 2.2.4 of this Code. Engineering Construction Standard Full Text Information System
1,500
3.5 (6.0)
Auxiliary Road
3.5 (3.0)
Engineering Construction Standard Full Text Information System
When the annual average daily two-way traffic volume of various vehicles converted into heavy-duty trucks is less than 20 vehicles, the technical indicators of auxiliary roads should be adopted; when the annual average daily two-way traffic volume of various vehicles converted into heavy-duty trucks is more than 20 vehicles, it is advisable to design according to the technical indicators of the fourth-level off-site roads. Article 2.2.4 The roadbed and pavement width of off-site roads should be adopted in accordance with the provisions of Table 2.2.2 of this specification. In sections with more pedestrians and non-motor vehicles, the shoulders can be reinforced or the roadbed and pavement can be appropriately widened according to actual conditions, and slow lanes can be set up. The pavement width of off-site roads close to the enterprise gate should be compatible with the pavement width of the connected on-site roads.
For off-site roads with an annual average daily two-way traffic volume of various vehicles converted into trucks slightly exceeding 200 vehicles, if the traffic volume does not develop much in the long term, the technical indicators of the fourth-level off-site roads can be adopted, but the road surface width should be 6m and the roadbed width should be 7m. For the second-level off-site roads in plains and hilly areas with traffic volume close to the lower limit, the road surface width can be 7m and the roadbed width can be 10m.
For auxiliary roads with very little traffic and arduous engineering, the road surface width can be 3m.
For auxiliary roads leading to explosives depots, the road surface width should be 3.5m and the roadbed width should be 5m.
For off-site roads in cold, frozen and snowy areas, especially in long and long sections with large longitudinal slopes, the roadbed width can be appropriately widened according to specific conditions. For off-site roads where large vehicles with a width of more than 2.65m are often used, the roadbed and road surface widths can be calculated and determined with reference to open-pit mine roads. For the fourth-level off-site roads, in sections with difficult engineering or light traffic, the roadbed width can be 4.5m, but passing lanes should be set at appropriate intervals. Auxiliary roads should have passing lanes as needed. The setting of passing lanes should comply with the provisions of Appendix 2. Article 2.2.5 The minimum circular curve radius of off-site roads shall be greater than or equal to the general minimum circular curve radius listed in Table 2.2.2 of this specification. When restricted by terrain or other conditions, the table's extreme minimum circular curve radius may be used. The plane layout of off-site roads passing through residential areas or close to factory areas and residential areas is subject to the engineering 6 Construction Standards Full Text Information System
W.bzsoso.coIArticle 9 The design of factory and mine roads, in addition to complying with the provisions of this specification, shall also comply with the requirements of current standards and specifications for health, fire prevention, earthquake resistance, etc., and refer to the current design specifications for other relevant road projects. Engineering 2 Construction Standard Full Text Information System
W. Engineering Construction Standard Full Text Information System
Chapter 2 Road
Section 1 General Provisions
Article 2.1.1 The design of factory and mine roads shall comply with the requirements of the overall planning or general layout of the factory and mine enterprise, and shall reasonably utilize the terrain and correctly apply technical indicators based on the nature and use requirements of the road.
Article 2.1.2 The design of factory and mine roads shall comprehensively consider the horizontal, vertical and horizontal aspects, and ensure that the horizontal plane is smooth, the vertical slope is balanced, and the horizontal plane is reasonable. The route design shall not damage important historical relics, and shall demolish fewer houses and avoid seismic stations and other important landforms.
Article 2.1.3 For sections of road where vehicles that are highly destructive to the road surface (such as crawler tractors, etc.) are often used, auxiliary roads or other measures should be set up. Roads for special purposes (such as special test tracks, etc.) can be designed according to specific conditions. Article 2.1.4 Off-site roads should avoid areas with poor geology and underground active goafs, not press or press less underground mineral resources, and should not pass through dangerous areas of blasting without safety measures.
Off-site road design should be used by factories and mines along the line, and take into account the needs of local transportation.
Article 2.1.5 The design of on-site roads should be conducive to production and convenient for life. The plane layout of on-site roads should be parallel to the building axis and should meet the requirements of relevant regulations such as civil air defense and vibration prevention. The longitudinal section design of on-site roads should be coordinated with the vertical design of the on-site and the design of on-site buildings (structures), pipelines, and railways. Article 2.1.6 The design of open-pit mine roads should be based on the mine topography, geology, mining boundaries, mining advancement direction, the elevation of each mining step (stage), the location of the unloading point and the waste rock dump (dumping site), and closely cooperate with the mining process, comprehensively consider the requirements of hillside mining or deep mining, and reasonably lay out the route. When the topography or geology is complex, after the line is determined on paper, it should be verified and corrected on site.
In the mining boundary line of the mine, it is advisable to use excavated roadbed. Article 2.1.7 The classification of large, medium and small factories and mines should be implemented in accordance with the current relevant regulations.
Section 2 Off-site Roads
Article 2.2.1 The design of off-site roads within the planning scope of the urban road network should be implemented in accordance with the current design specifications for urban roads: The design of off-site roads within the planning scope of the highway network should be implemented in accordance with the current design specifications for highways. The design of off-site roads outside the above-mentioned planning scope shall be implemented in accordance with this specification. Article 2.2.2 The main technical indicators of off-site roads shall be adopted in accordance with the provisions of Table 2.2.2.
Article 2.2.3 The adoption of off-site road grades shall comply with the following provisions: 1. For external roads in national key factories and mines of great significance, which require separate lanes for vehicles, partially control access, and partially have grade-separated intersections, and have an annual average daily two-way vehicle traffic volume of more than 5,000 vehicles, first-class off-site roads shall be adopted. 2. For the main external roads of large joint enterprises, steel mills, oil fields, coal fields, ports, etc., when the annual average daily two-way traffic volume of various vehicles converted into trucks is 5,000 to 2,000 vehicles, second-class off-site roads shall be adopted. 3. For external roads of large and medium-sized factories and mines, external roads with busy transportation of small factories and mines, and connecting roads with busy transportation, when the annual average daily two-way traffic volume of various vehicles converted into trucks is 2,000 to 200 vehicles, third-class off-site roads shall be adopted.
4. For external roads of small factories and mines and liaison roads with light transportation, when the annual average daily two-way traffic volume of various vehicles converted into heavy-duty trucks is less than 200 vehicles, it is advisable to use Class IV external roads.
V. Road leading to various auxiliary facilities outside the factory and mine enterprises (such as water source, main substation Engineering Construction Standard Full Text Information System
W.bzsoso.coI Engineering Construction Standard Full Text Information System
Grade of roads outside the factory
Calculation of driving speed (km/h))
Pavement width (m)
Roadbed width (m)
Limited minimum circular curve radius (m)
General minimum circular curve radius (m)
Minimum circular curve radius without superelevation (m) Stopping sight distance (m)
Meeting sight distance (m)
Maximum longitudinal slope (%)
Note: ① The road width in the table refers to the width of the carriageway. Ping
4,000
1,500
Main technical indicators of off-site roads
12(10)
2,500
②The radius of the circular curve of the auxiliary road can be 12m in the section with difficult engineering. ③The values in brackets in the table should be adopted in accordance with the provisions of Article 2.2.4 of this Code. Engineering Construction Standard Full Text Information System
1,500
3.5 (6.0)
Auxiliary Road
3.5 (3.0)
Engineering Construction Standard Full Text Information System
When the annual average daily two-way traffic volume of various vehicles converted into heavy-duty trucks is less than 20 vehicles, the technical indicators of auxiliary roads should be adopted; when the annual average daily two-way traffic volume of various vehicles converted into heavy-duty trucks is more than 20 vehicles, it is advisable to design according to the technical indicators of the fourth-level off-site roads. Article 2.2.4 The roadbed and pavement width of off-site roads should be adopted in accordance with the provisions of Table 2.2.2 of this specification. In sections with more pedestrians and non-motor vehicles, the shoulders can be reinforced or the roadbed and pavement can be appropriately widened according to actual conditions, and slow lanes can be set up. The pavement width of off-site roads close to the enterprise gate should be compatible with the pavement width of the connected on-site roads.
For off-site roads with an annual average daily two-way traffic volume of various vehicles converted into trucks slightly exceeding 200 vehicles, if the traffic volume does not develop much in the long term, the technical indicators of the fourth-level off-site roads can be adopted, but the road surface width should be 6m and the roadbed width should be 7m. For the second-level off-site roads in plains and hilly areas with traffic volume close to the lower limit, the road surface width can be 7m and the roadbed width can be 10m.
For auxiliary roads with very little traffic and arduous engineering, the road surface width can be 3m.
For auxiliary roads leading to explosives depots, the road surface width should be 3.5m and the roadbed width should be 5m.
For off-site roads in cold, frozen and snowy areas, especially in long and long sections with large longitudinal slopes, the roadbed width can be appropriately widened according to specific conditions. For off-site roads where large vehicles with a width of more than 2.65m are often used, the roadbed and road surface widths can be calculated and determined with reference to open-pit mine roads. For the fourth-level off-site roads, in sections with difficult engineering or light traffic, the roadbed width can be 4.5m, but passing lanes should be set at appropriate intervals. Auxiliary roads should have passing lanes as needed. The setting of passing lanes should comply with the provisions of Appendix 2. Article 2.2.5 The minimum circular curve radius of off-site roads shall be greater than or equal to the general minimum circular curve radius listed in Table 2.2.2 of this specification. When restricted by terrain or other conditions, the table's extreme minimum circular curve radius may be used. The plane layout of off-site roads passing through residential areas or close to factory areas and residential areas is subject to the engineering 6 Construction Standards Full Text Information System
W.bzsoso.coIArticle 9 The design of factory and mine roads, in addition to complying with the provisions of this specification, shall also comply with the requirements of current standards and specifications for health, fire prevention, earthquake resistance, etc., and refer to the current design specifications for other relevant road projects. Engineering 2 Construction Standard Full Text Information System
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Chapter 2 Road
Section 1 General Provisions
Article 2.1.1 The design of factory and mine roads shall comply with the requirements of the overall planning or general layout of the factory and mine enterprise, and shall reasonably utilize the terrain and correctly apply technical indicators based on the nature and use requirements of the road.
Article 2.1.2 The design of factory and mine roads shall comprehensively consider the horizontal, vertical and horizontal aspects, and ensure that the horizontal plane is smooth, the vertical slope is balanced, and the horizontal plane is reasonable. The route design shall not damage important historical relics, and shall demolish fewer houses and avoid seismic stations and other important landforms.
Article 2.1.3 For sections of road where vehicles that are highly destructive to the road surface (such as crawler tractors, etc.) are often used, auxiliary roads or other measures should be set up. Roads for special purposes (such as special test tracks, etc.) can be designed according to specific conditions. Article 2.1.4 Off-site roads should avoid areas with poor geology and underground active goafs, not press or press less underground mineral resources, and should not pass through dangerous areas of blasting without safety measures.
Off-site road design should be used by factories and mines along the line, and take into account the needs of local transportation.
Article 2.1.5 The design of on-site roads should be conducive to production and convenient for life. The plane layout of on-site roads should be parallel to the building axis and should meet the requirements of relevant regulations such as civil air defense and vibration prevention. The longitudinal section design of on-site roads should be coordinated with the vertical design of the on-site and the design of on-site buildings (structures), pipelines, and railways. Article 2.1.6 The design of open-pit mine roads should be based on the mine topography, geology, mining boundaries, mining advancement direction, the elevation of each mining step (stage), the location of the unloading point and the waste rock dump (dumping site), and closely cooperate with the mining process, comprehensively consider the requirements of hillside mining or deep mining, and reasonably lay out the route. When the topography or geology is complex, after the line is determined on paper, it should be verified and corrected on site.
In the mining boundary line of the mine, it is advisable to use excavated roadbed. Article 2.1.7 The classification of large, medium and small factories and mines should be implemented in accordance with the current relevant regulations.
Section 2 Off-site Roads
Article 2.2.1 The design of off-site roads within the planning scope of the urban road network should be implemented in accordance with the current design specifications for urban roads: The design of off-site roads within the planning scope of the highway network should be implemented in accordance with the current design specifications for highways. The design of off-site roads outside the above-mentioned planning scope shall be implemented in accordance with this specification. Article 2.2.2 The main technical indicators of off-site roads shall be adopted in accordance with the provisions of Table 2.2.2.
Article 2.2.3 The adoption of off-site road grades shall comply with the following provisions: 1. For external roads in national key factories and mines of great significance, which require separate lanes for vehicles, partially control access, and partially have grade-separated intersections, and have an annual average daily two-way vehicle traffic volume of more than 5,000 vehicles, first-class off-site roads shall be adopted. 2. For the main external roads of large joint enterprises, steel mills, oil fields, coal fields, ports, etc., when the annual average daily two-way traffic volume of various vehicles converted into trucks is 5,000 to 2,000 vehicles, second-class off-site roads shall be adopted. 3. For external roads of large and medium-sized factories and mines, external roads with busy transportation of small factories and mines, and connecting roads with busy transportation, when the annual average daily two-way traffic volume of various vehicles converted into trucks is 2,000 to 200 vehicles, third-class off-site roads shall be adopted.
4. For external roads of small factories and mines and liaison roads with light transportation, when the annual average daily two-way traffic volume of various vehicles converted into heavy-duty trucks is less than 200 vehicles, it is advisable to use Class IV external roads.
V. Road leading to various auxiliary facilities outside the factory and mine enterprises (such as water source, main substation Engineering Construction Standard Full Text Information System
W.bzsoso.coI Engineering Construction Standard Full Text Information System
Grade of roads outside the factory
Calculation of driving speed (km/h))
Pavement width (m)
Roadbed width (m)
Limited minimum circular curve radius (m)
General minimum circular curve radius (m)
Minimum circular curve radius without superelevation (m) Stopping sight distance (m)
Meeting sight distance (m)
Maximum longitudinal slope (%)
Note: ① The road width in the table refers to the width of the carriageway. Ping
4,000
1,500
Main technical indicators of off-site roads
12(10)
2,500
②The radius of the circular curve of the auxiliary road can be 12m in the section with difficult engineering. ③The values in brackets in the table should be adopted in accordance with the provisions of Article 2.2.4 of this Code. Engineering Construction Standard Full Text Information System
1,500
3.5 (6.0)
Auxiliary Road
3.5 (3.0)
Engineering Construction Standard Full Text Information System
When the annual average daily two-way traffic volume of various vehicles converted into heavy-duty trucks is less than 20 vehicles, the technical indicators of auxiliary roads should be adopted; when the annual average daily two-way traffic volume of various vehicles converted into heavy-duty trucks is more than 20 vehicles, it is advisable to design according to the technical indicators of the fourth-level off-site roads. Article 2.2.4 The roadbed and pavement width of off-site roads should be adopted in accordance with the provisions of Table 2.2.2 of this specification. In sections with more pedestrians and non-motor vehicles, the shoulders can be reinforced or the roadbed and pavement can be appropriately widened according to actual conditions, and slow lanes can be set up. The pavement width of off-site roads close to the enterprise gate should be compatible with the pavement width of the connected on-site roads.
For off-site roads with an annual average daily two-way traffic volume of various vehicles converted into trucks slightly exceeding 200 vehicles, if the traffic volume does not develop much in the long term, the technical indicators of the fourth-level off-site roads can be adopted, but the road surface width should be 6m and the roadbed width should be 7m. For the second-level off-site roads in plains and hilly areas with traffic volume close to the lower limit, the road surface width can be 7m and the roadbed width can be 10m.
For auxiliary roads with very little traffic and arduous engineering, the road surface width can be 3m.
For auxiliary roads leading to explosives depots, the road surface width should be 3.5m and the roadbed width should be 5m.
For off-site roads in cold, frozen and snowy areas, especially in long and long sections with large longitudinal slopes, the roadbed width can be appropriately widened according to specific conditions. For off-site roads where large vehicles with a width of more than 2.65m are often used, the roadbed and road surface widths can be calculated and determined with reference to open-pit mine roads. For the fourth-level off-site roads, in sections with difficult engineering or light traffic, the roadbed width can be 4.5m, but passing lanes should be set at appropriate intervals. Auxiliary roads should have passing lanes as needed. The setting of passing lanes should comply with the provisions of Appendix 2. Article 2.2.5 The minimum circular curve radius of off-site roads shall be greater than or equal to the general minimum circular curve radius listed in Table 2.2.2 of this specification. When restricted by terrain or other conditions, the table's extreme minimum circular curve radius may be used. The plane layout of off-site roads passing through residential areas or close to factory areas and residential areas is subject to the engineering 6 Construction Standards Full Text Information System
W.bzsoso.coIArticle 5 The design of the roads within the factory should be conducive to production and convenient for life. The plane layout of the roads within the factory should be parallel to the axis of the building and should comply with the requirements of relevant regulations such as civil air defense and vibration prevention. The longitudinal section design of the roads within the factory should be coordinated with the vertical design of the factory and the design of the buildings (structures), pipelines and railways within the factory. Article 2.1.6 The design of open-pit mine roads should be based on the mine terrain, geology, mining boundaries, mining advancement direction, the elevation of each mining step (stage) and the location of the unloading point and waste rock dump (dumping site), and closely cooperate with the mining process, comprehensively consider the requirements of hillside mining or deep mining, and reasonably lay out the route. When the terrain or geology is complex, after using paper to determine the route, it should be verified and corrected on site.
Within the mining boundary line of the mine, it is advisable to use excavated roadbed. Article 2.1.7 The classification of large, medium and small factories and mines should be implemented in accordance with the current relevant regulations.
Section 2 Off-site Roads
Article 2.2.1 The design of off-site roads within the planning scope of the urban road network shall be carried out in accordance with the current design specifications for urban roads: The design of off-site roads within the planning scope of the highway network shall be carried out in accordance with the current design specifications for highways. The design of off-site roads outside the above-mentioned planning scope shall be carried out in accordance with this specification. Article 2.2.2 The main technical indicators of off-site roads should be adopted in accordance with the provisions of Table 2.2.2.
Article 2.2.3 The adoption of off-site road grades should comply with the following provisions: 1. For external roads in the areas of national key factories and mines of great significance, which require separate lanes for vehicles, partially control access, and partially have grade-separated intersections, and the annual average daily two-way vehicle traffic volume is more than 5,000 vehicles, it is advisable to adopt a first-class off-site road. 2. For the main external roads of large joint enterprises, steel mills, oil fields, coal fields, ports, etc., when the annual average daily two-way traffic volume of various vehicles converted into trucks is between 5,000 and 2,000, it is advisable to use second-level external roads. 3. For the external roads of large and medium-sized factories and mines, the external roads of small factories and mines with busy transportation, and the connecting roads with busy transportation, when the annual average daily two-way traffic volume of various vehicles converted into trucks is between 2,000 and 200, it is advisable to use third-level external roads.
4. For the external roads of small factories and mines, and the connecting roads with less busy transportation, when the annual average daily two-way traffic volume of various vehicles converted into trucks is less than 200, it is advisable to use fourth-level external roads.
V. Road leading to various auxiliary facilities outside the factory and mine enterprises (such as water source, main substation Engineering Construction Standard Full Text Information System
W.bzsoso.coI Engineering Construction Standard Full Text Information System
Grade of roads outside the factory
Calculation of driving speed (km/h))
Pavement width (m)
Roadbed width (m)
Limited minimum circular curve radius (m)
General minimum circular curve radius (m)
Minimum circular curve radius without superelevation (m) Stopping sight distance (m)
Meeting sight distance (m)
Maximum longitudinal slope (%)
Note: ① The road width in the table refers to the width of the carriageway. Ping
4,000
1,500
Main technical indicators of off-site roads
12(10)
2,500
②The radius of the circular curve of the auxiliary road can be 12m in the section with difficult engineering. ③The values in brackets in the table should be adopted in accordance with the provisions of Article 2.2.4 of this Code. Engineering Construction Standard Full Text Information System
1,500
3.5 (6.0)
Auxiliary Road
3.5 (3.0)
Engineering Construction Standard Full Text Information System
When the annual average daily two-way traffic volume of various vehicles converted into heavy-duty trucks is less than 20 vehicles, the technical indicators of auxiliary roads should be adopted; when the annual average daily two-way traffic volume of various vehicles converted into heavy-duty trucks is more than 20 vehicles, it is advisable to design according to the technical indicators of the fourth-level off-site roads. Article 2.2.4 The roadbed and pavement width of off-site roads should be adopted in accordance with the provisions of Table 2.2.2 of this specification. In sections with more pedestrians and non-motor vehicles, the shoulders can be reinforced or the roadbed and pavement can be appropriately widened according to actual conditions, and slow lanes can be set up. The pavement width of off-site roads close to the enterprise gate should be compatible with the pavement width of the connected on-site roads.
For off-site roads with an annual average daily two-way traffic volume of various vehicles converted into trucks slightly exceeding 200 vehicles, if the traffic volume does not develop much in the long term, the technical indicators of the fourth-level off-site roads can be adopted, but the road surface width should be 6m and the roadbed width should be 7m. For the second-level off-site roads in plains and hilly areas with traffic volume close to the lower limit, the road surface width can be 7m and the roadbed width can be 10m.
For auxiliary roads with very little traffic and arduous engineering, the road surface width can be 3m.
For auxiliary roads leading to explosives depots, the road surface width should be 3.5m and the roadbed width should be 5m.
For off-site roads in cold, frozen and snowy areas, especially in long and long sections with large longitudinal slopes, the roadbed width can be appropriately widened according to specific conditions. For off-site roads where large vehicles with a width of more than 2.65m are often used, the roadbed and road surface widths can be calculated and determined with reference to open-pit mine roads. For the fourth-level off-site roads, in sections with difficult engineering or light traffic, the roadbed width can be 4.5m, but passing lanes should be set at appropriate intervals. Auxiliary roads should have passing lanes as needed. The setting of passing lanes should comply with the provisions of Appendix 2. Article 2.2.5 The minimum circular curve radius of off-site roads shall be greater than or equal to the general minimum circular curve radius listed in Table 2.2.2 of this specification. When restricted by terrain or other conditions, the table's extreme minimum circular curve radius may be used. The plane layout of off-site roads passing through residential areas or close to factory areas and residential areas is subject to the engineering 6 Construction Standards Full Text Information System
W.bzsoso.coIArticle 5 The design of the roads within the factory should be conducive to production and convenient for life. The plane layout of the roads within the factory should be parallel to the axis of the building and should comply with the requirements of relevant regulations such as civil air defense and vibration prevention. The longitudinal section design of the roads within the factory should be coordinated with the vertical design of the factory and the design of the buildings (structures), pipelines and railways within the factory. Article 2.1.6 The design of open-pit mine roads should be based on the mine terrain, geology, mining boundaries, mining advancement direction, the elevation of each mining step (stage) and the location of the unloading point and waste rock dump (dumping site), and closely cooperate with the mining process, comprehensively consider the requirements of hillside mining or deep mining, and reasonably lay out the route. When the terrain or geology is complex, after using paper to determine the route, it should be verified and corrected on site.
Within the mining boundary line of the mine, it is advisable to use excavated roadbed. Article 2.1.7 The classification of large, medium and small factories and mines should be implemented in accordance with the current relevant regulations.
Section 2 Off-site Roads
Article 2.2.1 The design of off-site roads within the planning scope of the urban road network shall be carried out in accordance with the current design specifications for urban roads: The design of off-site roads within the planning scope of the highway network shall be carried out in accordance with the current design specifications for highways. The design of off-site roads outside the above-mentioned planning scope shall be carried out in accordance with this specification. Article 2.2.2 The main technical indicators of off-site roads should be adopted in accordance with the provisions of Table 2.2.2.
Article 2.2.3 The adoption of off-site road grades should comply with the following provisions: 1. For external roads in the areas of national key factories and mines of great significance, which require separate lanes for vehicles, partially control access, and partially have grade-separated intersections, and the annual average daily two-way vehicle traffic volume is more than 5,000 vehicles, it is advisable to adopt a first-class off-site road. 2. For the main external roads of large joint enterprises, steel mills, oil fields, coal fields, ports, etc., when the annual average daily two-way traffic volume of various vehicles converted into trucks is between 5,000 and 2,000, it is advisable to use second-level external roads. 3. For the external roads of large and medium-sized factories and mines, the external roads of small factories and mines with busy transportation, and the connecting roads with busy transportation, when the annual average daily two-way traffic volume of various vehicles converted into trucks is between 2,000 and 200, it is advisable to use third-level external roads.
4. For the external roads of small factories and mines, and the connecting roads with less busy transportation, when the annual average daily two-way traffic volume of various vehicles converted into trucks is less than 200, it is advisable to use fourth-level external roads.
V. Road leading to various auxiliary facilities outside the factory and mine enterprises (such as water source, main substation Engineering Construction Standard Full Text Information System
W.bzsoso.coI Engineering Construction Standard Full Text Information System
Grade of roads outside the factory
Calculation of driving speed (km/h))
Pavement width (m)
Roadbed width (m)
Limited minimum circular curve radius (m)
General minimum circular curve radius (m)
Minimum circular curve radius without superelevation (m) Stopping sight distance (m)
Meeting sight distance (m)
Maximum longitudinal slope (%)
Note: ① The road width in the table refers to the width of the carriageway. Ping
4,000
1,500
Main technical indicators of off-site roads
12(10)
2,500
②The radius of the circular curve of the auxiliary road can be 12m in the section with difficult engineering. ③The values in brackets in the table should be adopted in accordance with the provisions of Article 2.2.4 of this Code. Engineering Construction Standard Full Text Information System
1,500
3.5 (6.0)
Auxiliary Road
3.5 (3.0)
Engineering Construction Standard Full Text Information System
When the annual average daily two-way traffic volume of various vehicles converted into heavy-duty trucks is less than 20 vehicles, the technical indicators of auxiliary roads should be adopted; when the annual average daily two-way traffic volume of various vehicles converted into heavy-duty trucks is more than 20 vehicles, it is advisable to design according to the technical indicators of the fourth-level off-site roads. Article 2.2.4 The roadbed and pavement width of off-site roads should be adopted in accordance with the provisions of Table 2.2.2 of this specification. In sections with more pedestrians and non-motor vehicles, the shoulders can be reinforced or the roadbed and pavement can be appropriately widened according to actual conditions, and slow lanes can be set up. The pavement width of off-site roads close to the enterprise gate should be compatible with the pavement width of the connected on-site roads.
For off-site roads with an annual average daily two-way traffic volume of various vehicles converted into trucks slightly exceeding 200 vehicles, if the traffic volume does not develop much in the long term, the technical indicators of the fourth-level off-site roads can be adopted, but the road surface width should be 6m and the roadbed width should be 7m. For the second-level off-site roads in plains and hilly areas with traffic volume close to the lower limit, the road surface width can be 7m and the roadbed width can be 10m.
For auxiliary roads with very little traffic and arduous engineering, the road surface width can be 3m.
For auxiliary roads leading to explosives depots, the road surface width should be 3.5m and the roadbed width should be 5m.
For off-site roads in cold, frozen and snowy areas, especially in long and long sections with large longitudinal slopes, the roadbed width can be appropriately widened according to specific conditions. For off-site roads where large vehicles with a width of more than 2.65m are often used, the roadbed and road surface widths can be calculated and determined with reference to open-pit mine roads. For the fourth-level off-site roads, in sections with difficult engineering or light traffic, the roadbed width can be 4.5m, but passing lanes should be set at appropriate intervals. Auxiliary roads should have passing lanes as needed. The setting of passing lanes should comply with the provisions of Appendix 2. Article 2.2.5 The minimum circular curve radius of off-site roads shall be greater than or equal to the general minimum circular curve radius listed in Table 2.2.2 of this specification. When restricted by terrain or other conditions, the table's extreme minimum circular curve radius may be used. The plane layout of off-site roads passing through residential areas or close to factory areas and residential areas is subject to the engineering 6 Construction Standards Full Text Information System
W.bzsoso.coIcoI Engineering Construction Standard Full Text Information System
Off-site road grade
Calculation of driving speed (km/h)）
Pavement width (m)
Roadbed width (m)
Limited minimum circular curve radius (m)
General minimum circular curve radius (m)
Minimum circular curve radius without superelevation (m) Stopping sight distance (m)
Meeting sight distance (m)
Maximum longitudinal slope (%)
Note: ① The road surface width in the table refers to the width of the carriageway. Flat
4,000
1,500
Main technical indicators of off-site roads
12(10)
2,500
② The circular curve radius of the auxiliary road can be 12m in the section with difficult engineering. ③ The values in brackets in the table shall be adopted in accordance with the provisions of Article 2.2.4 of this Code. Engineering Construction Standard Full Text Information System
1,500
3.5 (6.0)
Auxiliary Road
3.5 (3.0)
Engineering Construction Standard Full Text Information System
When the annual average daily two-way traffic volume of various vehicles converted into heavy-duty trucks is less than 20 vehicles, the technical indicators of auxiliary roads should be adopted; when the annual average daily two-way traffic volume of various vehicles converted into heavy-duty trucks is more than 20 vehicles, it is advisable to design according to the technical indicators of the fourth-level off-site roads. Article 2.2.4 The width of the roadbed and pavement of off-site roads shall be adopted in accordance with the provisions of Table 2.2.2 of this Code. In sections with more pedestrians and non-motor vehicles, the shoulders can be reinforced or the roadbed and pavement can be appropriately widened according to the actual situation, and slow lanes can be set. The road width of the off-site road close to the enterprise gate should be compatible with the road width of the connected on-site road.
For off-site roads with an annual average daily two-way traffic volume of various vehicles converted into trucks slightly exceeding 200 vehicles, if the long-term traffic volume is not large, the technical indicators of the fourth-level off-site road can be adopted, but the road width should be 6m and the roadbed width should be 7m. For the second-level off-site roads in plains and hilly areas with traffic volume close to the lower limit, the road width can be 7m and the roadbed width can be 10m.
For auxiliary roads with very little traffic and arduous engineering, the road width can be 3m.
For auxiliary roads leading to explosives depots, the road width should be 3.5m and the roadbed width should be 5m.
For off-site roads in cold, frozen and snowy areas, especially in long sections with large longitudinal slopes, the roadbed width can be appropriately widened according to specific conditions. For off-site roads where large vehicles with a width of more than 2.65m are frequently used, the width of the roadbed and pavement can be determined by referring to the calculation of open-pit mine roads. For Class IV off-site roads, the roadbed width can be 4.5m in sections with arduous engineering or light traffic, but passing lanes should be set at appropriate intervals. Auxiliary roads should have passing lanes as needed. The setting of passing lanes should comply with the provisions of Appendix 2. Article 2.2.5 The minimum circular curve radius of off-site roads shall be greater than or equal to the general minimum circular curve radius listed in Table 2.2.2 of this specification. When restricted by terrain or other conditions, the table's extreme minimum circular curve radius may be used. The plane layout of off-site roads passing through residential areas or close to factory areas and residential areas is subject to the engineering 6 Construction Standards Full Text Information System
W.bzsoso.coIcoI Engineering Construction Standard Full Text Information System
Off-site road grade
Calculation of driving speed (km/h)）
Pavement width (m)
Roadbed width (m)
Limited minimum circular curve radius (m)
General minimum circular curve radius (m)
Minimum circular curve radius without superelevation (m) Stopping sight distance (m)
Meeting sight distance (m)
Maximum longitudinal slope (%)
Note: ① The road surface width in the table refers to the width of the carriageway. Flat
4,000
1,500
Main technical indicators of off-site roads
12(10)
2,500
② The circular curve radius of the auxiliary road can be 12m in the section with difficult engineering. ③ The values in brackets in the table shall be adopted in accordance with the provisions of Article 2.2.4 of this Code. Engineering Construction Standard Full Text Information System
1,500
3.5 (6.0)
Auxiliary Road
3.5 (3.0)
Engineering Construction Standard Full Text Information System
When the annual average daily two-way traffic volume of various vehicles converted into heavy-duty trucks is less than 20 vehicles, the technical indicators of auxiliary roads should be adopted; when the annual average daily two-way traffic volume of various vehicles converted into heavy-duty trucks is more than 20 vehicles, it is advisable to design according to the technical indicators of the fourth-level off-site roads. Article 2.2.4 The width of the roadbed and pavement of off-site roads shall be adopted in accordance with the provisions of Table 2.2.2 of this Code. In sections with more pedestrians and non-motor vehicles, the shoulders can be reinforced or the roadbed and pavement can be appropriately widened according to the actual situation, and slow lanes can be set. The road width of the off-site road close to the enterprise gate should be compatible with the road width of the connected on-site road.
For off-site roads with an annual average daily two-way traffic volume of various vehicles converted into trucks slightly exceeding 200 vehicles, if the long-term traffic volume is not large, the technical indicators of the fourth-level off-site road can be adopted, but the road width should be 6m and the roadbed width should be 7m. For the second-level off-site roads in plains and hilly areas with traffic volume close to the lower limit, the road width can be 7m and the roadbed width can be 10m.
For auxiliary roads with very little traffic and arduous engineering, the road width can be 3m.
For auxiliary roads leading to explosives depots, the road width should be 3.5m and the roadbed width should be 5m.
For off-site roads in cold, frozen and snowy areas, especially in long sections with large longitudinal slopes, the roadbed width can be appropriately widened according to specific conditions. For off-site roads where large vehicles with a width of more than 2.65m are frequently used, the width of the roadbed and pavement can be determined by referring to the calculation of open-pit mine roads. For Class IV off-site roads, the roadbed width can be 4.5m in sections with arduous engineering or light traffic, but passing lanes should be set at appropriate intervals. Auxiliary roads should have passing lanes as needed. The setting of passing lanes should comply with the provisions of Appendix 2. Article 2.2.5 The minimum circular curve radius of off-site roads shall be greater than or equal to the general minimum circular curve radius listed in Table 2.2.2 of this specification. When restricted by terrain or other conditions, the table's extreme minimum circular curve radius may be used. The plane layout of off-site roads passing through residential areas or close to factory areas and residential areas is subject to the engineering 6 Construction Standards Full Text Information System
W.bzsoso.coI
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