GB 50157-1992 Specification for underground railway design GB50157-92
Some standard content:
Engineering Construction Standard Full-text Information System
National Standard of the People's Republic of China
50157—92
Code for the design of subway
1992-06-13 Issued
State Bureau of Technical Supervision
Ministry of Construction of the People's Republic of China
Engineering Construction Standard Full-text Information System
1993-01-01 Implementation
Jointly Issued
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National Standard of the People's Republic of China
Code for the design of subway
GB50157—92
Editor Department: Capital Office of the Planning and Construction Commission Approval department: Ministry of Construction of the People's Republic of China Effective date: January 1, 1993
Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
Notice on the release of the national standard "Subway Design Code"
Construction Standard [1992] No. 372
According to the requirements of the State Planning Commission's Document No. [1986] 2630, the "Subway Design Code" compiled by the Beijing Construction Commission and relevant departments has been reviewed. The "Subway Design Code" GB50157-92 is now approved as a mandatory national standard and will be implemented from January 1, 1993.
This code is managed by the Office of the Capital Planning and Construction Commission, and the specific interpretation work is the responsibility of the Beijing Urban Construction Design Institute. The publication and distribution is organized by the Standard and Quota Research Institute of the Ministry of Construction.
Ministry of Construction of the People's Republic of China
June 13, 1992
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Formulation Instructions
This specification is based on the notice of the State Planning Commission's [1986] No. 2630 document, and is jointly completed by the Beijing Urban Construction Design Institute, the main editor, and relevant units to form a specification compilation team.
In the process of formulating this specification, the experience of my country's subway engineering construction and operation management over the past 20 years, as well as the scientific research results over the years, were investigated and summarized. At the same time, the successful experience and advanced technology related to foreign subways were also learned. At various stages of the formulation of the specification, the opinions of relevant units across the country were widely solicited in various ways. After the composition of the specification was basically finalized, it was tested in the planning and design of subways in several cities in China. After several revisions, it was finally reviewed and finalized by our office together with relevant departments. This specification is the first national standard for subway engineering design compiled in my country, which is divided into 13 chapters and one appendix. The provisions of each chapter in the specification are based on reliable technical basis and mature experience. For some contents that are limited to the current lack of practical experience in China or the technology is not mature enough in the development stage, such as the various limits of vehicles using overhead contact network power supply and the technical requirements of the integrated automation system, this first version of the specification has not yet made provisions or only made principled provisions. In order to improve the quality of the specification, please pay attention to summarizing experience and accumulating information in the process of hot implementation of this specification, and send any problems and opinions found to the "Subway Design Specification" Management Group of Beijing Urban Construction Design Institute [No. 1, West Second Ring Road, Beijing (Postal Code 100037)] at any time for reference in future revisions. Office of the Capital Planning and Construction Committee
April 1992
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Chapter 1 General
Chapter 2 Limits
Section 1
General Provisions
Section 2
Principles for Determining Limits
Chapter 3
Section 1
Section 2
Section 3
Section 4
Chapter 4
General Provisions·
Line Plane
Line longitudinal section...
Station building
Section 1
Section 2
Section 3
Chapter 5
-General provisions
Station entrance and exit
Engineering structure and waterproofing
Section 1
Section 2
Section 3
Section 4
Section 5
Section 6
Chapter 6
-General provisions
Engineering materials
Structural form
Calculation principles||t t||Ventilation,
Air conditioning and heating
Section 1
Section 2
Section 3
General provisions
Tunnel ventilation and air conditioning
Local ventilation
Section 4
Chapter 7 Water supply and drainage
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(37)
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Section 1
Section 2
General Provisions
Section 3
Chapter 8
Section 1
Section 2
Section 3
Section 4
Section 5
Section 6
Chapter 9
General Provisions
Substation
Traction Power Grid
Cable and Grounding..
Power and Lighting
Power Supply System Management Automation
Elevator, Automatic Escalators and moving walks
Section 1
Section 2
Chapter 10
Section 1
Section 2
Section 3
Section 4
Section 5
Section 6
General provisions
Process layout
-General provisions
Special communications
Official communications
Communication lines
Communication power supply and grounding
Technical requirements for communication rooms
Chapter 11
Section 1||tt ||General Provisions
Section 2
Section 3
Section 4
Section 5
Section 6
Chapter 12
Section 1
Section 2
Section 3
Fixed Signals
Train Direction and Train Operation Control
General Provisions
Technical Requirements for Building Fire Protection
Fire Water Supply and Fire Extinguishing Devices
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(56))||t t||（59）
（61）
（74)
（78)
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Section 4
Section 5
Section 6
Section 7
Chapter 13
Section 1
Section 2
Section 3
Section 4
Section 5
Accidental Ventilation and Smoke Exhaust
Evacuation Instructions and Rescue and Rescue
Disaster Alarm and Monitoring System
Waterproof Technical requirements
Vehicle depot and other bases
General provisions
Operation and maintenance facilities
Maintenance facilities
Rescue facilities
Other bases
Appendix—
Terms used in this specification
Additional explanation
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Engineering construction standard full text information system
Chapter I General Provisions
Article 1.0.1 In order to make the design of subways advanced in technology, economically reasonable, safe and applicable, and in line with national conditions, this specification is specially formulated. Article 1.0.2 This specification applies to the design of newly built subway projects. Article 1.0.3 The design of subway projects shall be carried out in accordance with the subway network planning approved by the competent government department.
Article 1.0.4 Under the premise of meeting the traffic demand, the civil air defense requirements of subways can be determined by the competent urban department according to specific circumstances. Article 1.0.5 The design life of the subway is divided into two phases: short-term and long-term. The short-term should be the 10th year after delivery and operation; the long-term should comply with the life span specified in the city master plan, but should not be less than 25 years after delivery and operation.
Article 1.0.Article 6 The scale, equipment capacity, and land area of the underground railway project should be determined according to the predicted long-term passenger flow and capacity. For projects that can be constructed in phases and the equipment to be configured, phased expansion and addition should be considered. In the construction of underground railway projects, comprehensive development and utilization should be considered in places where conditions permit. Article 1.0.7 The underground railway line should be a double-track line with right-hand traffic and a standard track gauge of 1435mm.
Article 1.0.8 The maximum long-term capacity of the underground railway line should not be less than 30 pairs of trains per hour.
The number of vehicles in the short-term and long-term train formations should be determined according to the predicted short-term and long-term passenger flow and vehicle capacity respectively. The vehicle capacity is the sum of the number of seats in the carriage and the number of passengers standing on the empty area. The empty area of the carriage should be calculated based on 6 standing passengers per square meter.
Article 1.0.9 Section operation should be organized on lines with uneven passenger flow. The train operation route should be determined according to the long-term passenger flow distribution of the entire line. Engineering Construction Standard Full Text Information System
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Each terminal station and turnaround station of the line should be equipped with a turnaround line or a crossover line, and its turnaround capacity should match the throughput capacity of the section. When the distance between two turnaround stations is too long, it is advisable to add a crossover line or a vehicle parking line at the end of every 3 to 5 stations along the line.
Article 1.0.10 Each underground railway line should have a vehicle depot. When the length of a line exceeds 20km, a vehicle depot and a parking lot can be set. When it is technically and economically reasonable, two or more lines can also share a vehicle depot. Article 1.0.11 The vehicle depot entrance and exit lines should be set up as double or single lines, which should be determined based on the long-term line throughput capacity calculation. The end-type vehicle depot entrance and exit lines should use double lines. When it is a through-type vehicle depot, a single track can be set up at each end of the vehicle depot. Article 1.0.12 In the underground railway network, at least one vehicle depot should be equipped with a dedicated railway line connected to the ground. The dedicated railway line connected to the ground should comply with the provisions of the relevant national railway specifications currently in force.
Article 1.0.13 When designing the shallow, elevated and ground lines of the subway, measures should be taken to reduce noise and vibration. Article 1.0.14 The design of subway projects should meet the requirements of gradually realizing the comprehensive automation of operation and management.
Article 1.0.15 The selection and design of subway equipment should meet the requirements of standardization and serialization, and the introduction of foreign equipment should be based on the ability to achieve localization of products. Article 1.0.16 In addition to complying with this specification, the design of subways should also comply with the requirements of the relevant national standards and specifications currently in force. Engineering 2 Construction Standard Full Text Information System
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Chapter 2 Limits
Section 1 General Provisions
Article 2.1.1 The limits of underground railways shall be determined through comprehensive analysis of technical and economic comparison based on factors such as vehicle outline size and performance, line characteristics, equipment installation and construction methods.
Article 2.1.2 The limits of underground railways shall include vehicle limits, equipment limits, building limits, contact rail and contact network limits. Article 2.1.3 The provisions of this chapter apply to the limits of straight sections. The limits of curved sections shall be widened and raised on the straight sections according to different curve radii and superelevations and relevant dimensions of vehicles.
Article 2.1.4 For double-track underground railways, when there are no wall columns and other equipment between the two lines, there shall be a safety margin of not less than 100mm between the two equipment limits. Section 2 Principles of Limit Determination
Article 2.2.1 Vehicle limits shall be determined by combined calculation based on the most unfavorable conditions that may occur, based on relevant parameters such as the main dimensions of the vehicle, and taking into account the lateral and vertical offsets and deflection angles achieved under static and dynamic conditions. The main dimensions of vehicles powered by contact rails shall comply with the following provisions: 1. Vehicle length:
The length of the vehicle body is 19000mm,
The center distance between the two couplers is 19520mm;
2. The maximum width of the vehicle is 2800mm;
3. The height of the vehicle is 3515mm;
4. The fixed distance of the vehicle is 12600mm;
5. The fixed wheelbase is 2300mm;
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6. The height from the floor surface to the top surface of the rail is 1100mm; 7. The installation size of the current collector:
The end of the current collector is 1473mm away from the lateral center of the vehicle body, and the center of the current collector is 140mm away from the top surface of the rail. Article 2.2.2 Equipment limits shall be calculated and determined based on vehicle limits, vehicle deviation and tilt caused by poor track conditions, and taking into account appropriate safety factors. Article 2.2.3 Tunnel construction limits shall be determined in accordance with the following requirements: 1. The spacing between various types of tunnel construction limits and equipment limits in the straight section of the interval shall be able to meet the requirements for the installation of various equipment. 2. The construction limits of rectangular and horseshoe-shaped tunnels in curved sections shall be widened and raised according to the construction limits of straight sections. The widening and raising amounts shall be calculated according to the following formulas:
1. Widening inside the curve
E=}+a?
?+Xcosa+Y sina-X
(2.2.3-1)
2. Widening outside the curve
Eouter=-
(+a) +Xgcosa-Yssina-Xe (2.2. 3-2)8R
3. Top raising
Eheight=Yicosα+Xina-Y
α= sin-(h/s)
Lo—vehicle length (mm);
li—vehicle fixed distance (mm);
a—vehicle fixed wheelbase (mm);
R—circular curve radius (mm);
h——superelevation value (mm);
s—center distance between inner and outer rails (mm); (2.2.3-3)
(2.2. 3 —4)
(Xi, Yi), (X, Y),
(X, Y.2 are the coordinate values of the control points for calculating widening and
heightening respectively.
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Engineering Construction Standard Full Text Information System
3. For circular tunnels constructed by shield, the tunnel construction limit shall be determined according to the minimum curve radius of the entire line.
4. The construction limit of the turnout area shall be widened and heightened on the straight section according to the widening amount calculated according to the relevant dimensions of different types of turnouts and vehicles and the heightening amount required for installing equipment. In the turnout guide curve range The widening amount within the enclosure shall be calculated according to the following formula:
1. Inside widening
2. Outside widening
Ro—turnout guide curve radius (mm).
(2.2.3—5)
(2.2.3—6)
5. The building limit of the vertical curve section shall be raised on the straight section according to the height increase calculated based on the different vertical curve radii and relevant vehicle dimensions. The height increase shall be calculated according to the following formula:
1. Concave vertical curve
2. Convex vertical curve
(2.2.3—7)
(2.2.3 —8)
Wherein, R1 and R2 are the radii of the concave and convex vertical curves (mm) respectively. VI. The platform height of the straight section of the station should be lower than the floor surface of the carriage, and the height difference should be 50-100mm. The gap between the edge of the platform and the outer side of the carriage should be 100mm.
Article 2.2.4 The contact rail limit should be determined based on the offset, inclination and wear of the current collector, the contact rail installation error, the track deviation, the electrical clearance and other factors. Article 2.2.5 The straight section tunnel limit and coordinate value are as follows: , the circular tunnel limit of the interval straight section (Figure 2.2.5-1); Engineering Construction Standard Full Text Information System
W.bzsosO.coI 5Article 9 Sectional operation should be organized on lines with uneven passenger flow. Train operation routes should be determined based on the long-term passenger flow distribution of the entire line. Engineering Construction Standard Full Text Information System
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Engineering Construction Standard Full Text Information System
Each terminal station and turnaround station of the line should be equipped with a turnaround line or a crossover line, and its turnaround capacity should match the throughput capacity of the section. When the distance between two turnaround stations is too long, it is advisable to add a crossover line or a vehicle parking line at the end of every 3 to 5 stations along the line.
Article 1.0.10 Each underground railway line should have a vehicle depot. When the length of a line exceeds 20km, a vehicle depot and a parking lot can be set up. When it is technically and economically reasonable, two or more lines can also share a vehicle depot. Article 1.0.11 The vehicle depot entrance and exit lines should be set up with double or single lines, which should be determined based on the long-term line throughput capacity calculation. Double-track is recommended for the entrance and exit lines of the dead-end depot. When it is a through depot, a single track can be set up at each end of the depot. Article 1.0.12 In the underground railway network, at least one depot should have a dedicated railway line connected to the ground. The dedicated railway line connected to the ground should comply with the provisions of the relevant national railway specifications currently in force.
Article 1.0.13 When designing the shallow, elevated and ground lines of the underground railway, measures should be taken to reduce noise and vibration. Article 1.0.14 The design of underground railway projects should meet the requirements of gradually realizing the comprehensive automation of operation and management.
Article 1.0.15 The selection and design of underground railway equipment should meet the requirements of standardization and serialization, and the introduction of foreign equipment should be based on the ability to achieve product localization. Article 1.0.16 In addition to complying with this specification, the design of underground railways should also meet the requirements of the relevant national standards and specifications currently in force. Engineering 2 Construction Standard Full Text Information System
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Chapter 2 Limits
Section 1 General Provisions
Article 2.1.1 The limits of underground railways shall be determined through comprehensive analysis of technical and economic comparison based on factors such as vehicle outline size and performance, line characteristics, equipment installation and construction methods.
Article 2.1.2 The limits of underground railways shall include vehicle limits, equipment limits, building limits, contact rail and contact network limits. Article 2.1.3 The provisions of this chapter apply to the limits of straight sections. The limits of curved sections shall be widened and raised on the straight sections according to different curve radii and superelevations and relevant dimensions of vehicles.
Article 2.1.4 For double-track underground railways, when there are no wall columns and other equipment between the two lines, there shall be a safety margin of not less than 100mm between the two equipment limits. Section 2 Principles of Limit Determination
Article 2.2.1 Vehicle limits shall be determined by combined calculation based on the most unfavorable conditions that may occur, based on relevant parameters such as the main dimensions of the vehicle, and taking into account the lateral and vertical offsets and deflection angles achieved under static and dynamic conditions. The main dimensions of vehicles powered by contact rails shall comply with the following provisions: 1. Vehicle length:
The length of the vehicle body is 19000mm,
The center distance between the two couplers is 19520mm;
2. The maximum width of the vehicle is 2800mm;
3. The height of the vehicle is 3515mm;
4. The fixed distance of the vehicle is 12600mm;
5. The fixed wheelbase is 2300mm;
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6. The height from the floor surface to the top surface of the rail is 1100mm; 7. The installation size of the current collector:
The end of the current collector is 1473mm away from the lateral center of the vehicle body, and the center of the current collector is 140mm away from the top surface of the rail. Article 2.2.2 Equipment limits shall be calculated and determined based on vehicle limits, vehicle deviation and tilt caused by poor track conditions, and taking into account appropriate safety factors. Article 2.2.3 Tunnel construction limits shall be determined in accordance with the following requirements: 1. The spacing between various types of tunnel construction limits and equipment limits in the straight section of the interval shall be able to meet the requirements for the installation of various equipment. 2. The construction limits of rectangular and horseshoe-shaped tunnels in curved sections shall be widened and raised according to the construction limits of straight sections. The widening and raising amounts shall be calculated according to the following formulas:
1. Widening inside the curve
E=}+a?
?+Xcosa+Y sina-X
(2.2.3-1)
2. Widening outside the curve
Eouter=-
(+a) +Xgcosa-Yssina-Xe (2.2. 3-2)8R
3. Top raising
Eheight=Yicosα+Xina-Y
α= sin-(h/s)
Lo—vehicle length (mm);
li—vehicle fixed distance (mm);
a—vehicle fixed wheelbase (mm);
R—circular curve radius (mm);
h——superelevation value (mm);
s—center distance between inner and outer rails (mm); (2.2.3-3)
(2.2. 3 —4)
(Xi, Yi), (X, Y),
(X, Y.2 are the coordinate values of the control points for calculating widening and
heightening respectively.
Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
3. For circular tunnels constructed by shield, the tunnel construction limit shall be determined according to the minimum curve radius of the entire line.
4. The construction limit of the turnout area shall be widened and heightened on the straight section according to the widening amount calculated according to the relevant dimensions of different types of turnouts and vehicles and the heightening amount required for installing equipment. In the turnout guide curve range The widening amount within the enclosure shall be calculated according to the following formula:
1. Inside widening
2. Outside widening
Ro—turnout guide curve radius (mm).
(2.2.3—5)
(2.2.3—6)
5. The building limit of the vertical curve section shall be raised on the straight section according to the height increase calculated based on the different vertical curve radii and relevant vehicle dimensions. The height increase shall be calculated according to the following formula:
1. Concave vertical curve
2. Convex vertical curve
(2.2.3—7)
(2.2.3 —8)
Wherein, R1 and R2 are the radii of the concave and convex vertical curves (mm) respectively. VI. The platform height of the straight section of the station should be lower than the floor surface of the carriage, and the height difference should be 50-100mm. The gap between the edge of the platform and the outer side of the carriage should be 100mm.
Article 2.2.4 The contact rail limit should be determined based on the offset, inclination and wear of the current collector, the contact rail installation error, the track deviation, the electrical clearance and other factors. Article 2.2.5 The straight section tunnel limit and coordinate value are as follows: , the circular tunnel limit of the interval straight section (Figure 2.2.5-1); Engineering Construction Standard Full Text Information System
W.bzsosO.coI 5Article 9 Sectional operation should be organized on lines with uneven passenger flow. Train operation routes should be determined based on the long-term passenger flow distribution of the entire line. Engineering Construction Standard Full Text Information System
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Engineering Construction Standard Full Text Information System
Each terminal station and turnaround station of the line should be equipped with a turnaround line or a crossover line, and its turnaround capacity should match the throughput capacity of the section. When the distance between two turnaround stations is too long, it is advisable to add a crossover line or a vehicle parking line at the end of every 3 to 5 stations along the line.
Article 1.0.10 Each underground railway line should have a vehicle depot. When the length of a line exceeds 20km, a vehicle depot and a parking lot can be set up. When it is technically and economically reasonable, two or more lines can also share a vehicle depot. Article 1.0.11 The vehicle depot entrance and exit lines should be set up with double or single lines, which should be determined based on the long-term line throughput capacity calculation. Double-track is recommended for the entrance and exit lines of the dead-end depot. When it is a through depot, a single track can be set up at each end of the depot. Article 1.0.12 In the underground railway network, at least one depot should have a dedicated railway line connected to the ground. The dedicated railway line connected to the ground should comply with the provisions of the relevant national railway specifications currently in force.
Article 1.0.13 When designing the shallow, elevated and ground lines of the underground railway, measures should be taken to reduce noise and vibration. Article 1.0.14 The design of underground railway projects should meet the requirements of gradually realizing the comprehensive automation of operation and management.
Article 1.0.15 The selection and design of underground railway equipment should meet the requirements of standardization and serialization, and the introduction of foreign equipment should be based on the ability to achieve product localization. Article 1.0.16 In addition to complying with this specification, the design of underground railways should also meet the requirements of the relevant national standards and specifications currently in force. Engineering 2 Construction Standard Full Text Information System
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Chapter 2 Limits
Section 1 General Provisions
Article 2.1.1 The limits of underground railways shall be determined through comprehensive analysis of technical and economic comparison based on factors such as vehicle outline size and performance, line characteristics, equipment installation and construction methods.
Article 2.1.2 The limits of underground railways shall include vehicle limits, equipment limits, building limits, contact rail and contact network limits. Article 2.1.3 The provisions of this chapter apply to the limits of straight sections. The limits of curved sections shall be widened and raised on the straight sections according to different curve radii and superelevations and relevant dimensions of vehicles.
Article 2.1.4 For double-track underground railways, when there are no wall columns and other equipment between the two lines, there shall be a safety margin of not less than 100mm between the two equipment limits. Section 2 Principles of Limit Determination
Article 2.2.1 Vehicle limits shall be determined by combined calculation based on the most unfavorable conditions that may occur, based on relevant parameters such as the main dimensions of the vehicle, and taking into account the lateral and vertical offsets and deflection angles achieved under static and dynamic conditions. The main dimensions of vehicles powered by contact rails shall comply with the following provisions: 1. Vehicle length:
The length of the vehicle body is 19000mm,
The center distance between the two couplers is 19520mm;
2. The maximum width of the vehicle is 2800mm;
3. The height of the vehicle is 3515mm;
4. The fixed distance of the vehicle is 12600mm;
5. The fixed wheelbase is 2300mm;
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6. The height from the floor surface to the top surface of the rail is 1100mm; 7. The installation size of the current collector:
The end of the current collector is 1473mm away from the lateral center of the vehicle body, and the center of the current collector is 140mm away from the top surface of the rail. Article 2.2.2 Equipment limits shall be calculated and determined based on vehicle limits, vehicle deviation and tilt caused by poor track conditions, and taking into account appropriate safety factors. Article 2.2.3 Tunnel construction limits shall be determined in accordance with the following requirements: 1. The spacing between various types of tunnel construction limits and equipment limits in the straight section of the interval shall be able to meet the requirements for the installation of various equipment. 2. The construction limits of rectangular and horseshoe-shaped tunnels in curved sections shall be widened and raised according to the construction limits of straight sections. The widening and raising amounts shall be calculated according to the following formulas:
1. Widening inside the curve
E=}+a?
?+Xcosa+Y sina-X
(2.2.3-1)
2. Widening outside the curve
Eouter=-
(+a) +Xgcosa-Yssina-Xe (2.2. 3-2)8R
3. Top raising
Eheight=Yicosα+Xina-Y
α= sin-(h/s)
Lo—vehicle length (mm);
li—vehicle fixed distance (mm);
a—vehicle fixed wheelbase (mm);
R—circular curve radius (mm);
h——superelevation value (mm);
s—center distance between inner and outer rails (mm); (2.2.3-3)
(2.2. 3 —4)
(Xi, Yi), (X, Y),
(X, Y.2 are the coordinate values of the control points for calculating widening and
heightening respectively.
Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
3. For circular tunnels constructed by shield, the tunnel construction limit shall be determined according to the minimum curve radius of the entire line.
4. The construction limit of the turnout area shall be widened and heightened on the straight section according to the widening amount calculated according to the relevant dimensions of different types of turnouts and vehicles and the heightening amount required for installing equipment. In the turnout guide curve range The widening amount within the enclosure shall be calculated according to the following formula:
1. Inside widening
2. Outside widening
Ro—turnout guide curve radius (mm).
(2.2.3—5)
(2.2.3—6)
5. The building limit of the vertical curve section shall be raised on the straight section according to the height increase calculated based on the different vertical curve radii and relevant vehicle dimensions. The height increase shall be calculated according to the following formula:
1. Concave vertical curve
2. Convex vertical curve
(2.2.3—7)
(2.2.3 —8)
Wherein, R1 and R2 are the radii of the concave and convex vertical curves (mm) respectively. VI. The platform height of the straight section of the station should be lower than the floor surface of the carriage, and the height difference should be 50-100mm. The gap between the edge of the platform and the outer side of the carriage should be 100mm.
Article 2.2.4 The contact rail limit should be determined based on the offset, inclination and wear of the current collector, the contact rail installation error, the track deviation, the electrical clearance and other factors. Article 2.2.5 The straight section tunnel limit and coordinate value are as follows: , the circular tunnel limit of the interval straight section (Figure 2.2.5-1); Engineering Construction Standard Full Text Information System
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Chapter 2 LimitswwW.bzxz.Net
Section 1 General Provisions
Article 2.1.1 The limits of underground railways shall be determined through comprehensive analysis of technical and economic comparison based on factors such as vehicle outline size and performance, line characteristics, equipment installation and construction methods.
Article 2.1.2 The limits of underground railways shall include vehicle limits, equipment limits, building limits, contact rail and contact network limits. Article 2.1.3 The provisions of this chapter apply to the limits of straight sections. The limits of curved sections shall be widened and raised on the straight sections according to different curve radii and superelevations and relevant dimensions of vehicles.
Article 2.1.4 For double-track underground railways, when there are no wall columns and other equipment between the two lines, there shall be a safety margin of not less than 100mm between the two equipment limits. Section 2 Principles of Limit Determination
Article 2.2.1 Vehicle limits shall be determined by combined calculation based on the most unfavorable conditions that may occur, based on relevant parameters such as the main dimensions of the vehicle, and taking into account the lateral and vertical offsets and deflection angles achieved under static and dynamic conditions. The main dimensions of vehicles powered by contact rails shall comply with the following provisions: 1. Vehicle length:
The length of the vehicle body is 19000mm,
The center distance between the two couplers is 19520mm;
2. The maximum width of the vehicle is 2800mm;
3. The height of the vehicle is 3515mm;
4. The fixed distance of the vehicle is 12600mm;
5. The fixed wheelbase is 2300mm;
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Engineering Construction Standard Full-text Information System
6. The height from the floor surface to the top surface of the rail is 1100mm; 7. The installation size of the current collector:
The end of the current collector is 1473mm away from the lateral center of the vehicle body, and the center of the current collector is 140mm away from the top surface of the rail. Article 2.2.2 Equipment limits shall be calculated and determined based on vehicle limits, vehicle deviation and tilt caused by poor track conditions, and taking into account appropriate safety factors. Article 2.2.3 Tunnel construction limits shall be determined in accordance with the following requirements: 1. The spacing between various types of tunnel construction limits and equipment limits in the straight section of the interval shall be able to meet the requirements for the installation of various equipment. 2. The construction limits of rectangular and horseshoe-shaped tunnels in curved sections shall be widened and raised according to the construction limits of straight sections. The widening and raising amounts shall be calculated according to the following formulas:
1. Widening inside the curve
E=}+a?
?+Xcosa+Y sina-X
(2.2.3-1)
2. Widening outside the curve
Eouter=-
(+a) +Xgcosa-Yssina-Xe (2.2. 3-2)8R
3. Top raising
Eheight=Yicosα+Xina-Y
α= sin-(h/s)
Lo—vehicle length (mm);
li—vehicle fixed distance (mm);
a—vehicle fixed wheelbase (mm);
R—circular curve radius (mm);
h——superelevation value (mm);
s—center distance between inner and outer rails (mm); (2.2.3-3)
(2.2. 3 —4)
(Xi, Yi), (X, Y),
(X, Y.2 are the coordinate values of the control points for calculating widening and
heightening respectively.
Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
3. For circular tunnels constructed by shield, the tunnel construction limit shall be determined according to the minimum curve radius of the entire line.
4. The construction limit of the turnout area shall be widened and heightened on the straight section according to the widening amount calculated according to the relevant dimensions of different types of turnouts and vehicles and the heightening amount required for installing equipment. In the turnout guide curve range The widening amount within the enclosure shall be calculated according to the following formula:
1. Inside widening
2. Outside widening
Ro—turnout guide curve radius (mm).
(2.2.3—5)
(2.2.3—6)
5. The building limit of the vertical curve section shall be raised on the straight section according to the height increase calculated based on the different vertical curve radii and relevant vehicle dimensions. The height increase shall be calculated according to the following formula:
1. Concave vertical curve
2. Convex vertical curve
(2.2.3—7)
(2.2.3 —8)
Wherein, R1 and R2 are the radii of the concave and convex vertical curves (mm) respectively. VI. The platform height of the straight section of the station should be lower than the floor surface of the carriage, and the height difference should be 50-100mm. The gap between the edge of the platform and the outer side of the carriage should be 100mm.
Article 2.2.4 The contact rail limit should be determined based on the offset, inclination and wear of the current collector, the contact rail installation error, the track deviation, the electrical clearance and other factors. Article 2.2.5 The straight section tunnel limit and coordinate value are as follows: , the circular tunnel limit of the interval straight section (Figure 2.2.5-1); Engineering Construction Standard Full Text Information System
W.bzsosO.coI 5coI Engineering Construction Standard Full Text Information System
Chapter 2 Limits
Section 1 General Provisions
Article 2.1.1 The limits of underground railways shall be determined through comprehensive analysis of technical and economic comparison based on factors such as vehicle outline size and performance, line characteristics, equipment installation and construction methods.
Article 2.1.2 The limits of underground railways shall include vehicle limits, equipment limits, building limits, contact rail and contact network limits. Article 2.1.3 The provisions of this chapter apply to the limits of straight sections. The limits of curved sections shall be widened and raised on the straight sections according to different curve radii and superelevations and relevant dimensions of vehicles.
Article 2.1.4 For double-track underground railways, when there are no wall columns and other equipment between the two lines, there shall be a safety margin of not less than 100mm between the two equipment limits. Section 2 Principles of Limit Determination
Article 2.2.1 Vehicle limits shall be determined by combined calculation based on the most unfavorable conditions that may occur, based on relevant parameters such as the main dimensions of the vehicle, and taking into account the lateral and vertical offsets and deflection angles achieved under static and dynamic conditions. The main dimensions of vehicles powered by contact rails shall comply with the following provisions: 1. Vehicle length:
The length of the vehicle body is 19000mm,
The center distance between the two couplers is 19520mm;
2. The maximum width of the vehicle is 2800mm;
3. The height of the vehicle is 3515mm;
4. The fixed distance of the vehicle is 12600mm;
5. The fixed wheelbase is 2300mm;
Engineering Construction Standard Full-text Information System
W.3
Engineering Construction Standard Full-text Information System
6. The height from the floor surface to the top surface of the rail is 1100mm; 7. The installation size of the current collector:
The end of the current collector is 1473mm away from the lateral center of the vehicle body, and the center of the current collector is 140mm away from the top surface of the rail. Article 2.2.2 Equipment limits shall be calculated and determined based on vehicle limits, vehicle deviation and tilt caused by poor track conditions, and taking into account appropriate safety factors. Article 2.2.3 Tunnel construction limits shall be determined in accordance with the following requirements: 1. The spacing between various types of tunnel construction limits and equipment limits in the straight section of the interval shall be able to meet the requirements for the installation of various equipment. 2. The construction limits of rectangular and horseshoe-shaped tunnels in curved sections shall be widened and raised according to the construction limits of straight sections. The widening and raising amounts shall be calculated according to the following formulas:
1. Widening inside the curve
E=}+a?
?+Xcosa+Y sina-X
(2.2.3-1)
2. Widening outside the curve
Eouter=-
(+a) +Xgcosa-Yssina-Xe (2.2. 3-2)8R
3. Top raising
Eheight=Yicosα+Xina-Y
α= sin-(h/s)
Lo—vehicle length (mm);
li—vehicle fixed distance (mm);
a—vehicle fixed wheelbase (mm);
R—circular curve radius (mm);
h——superelevation value (mm);
s—center distance between inner and outer rails (mm); (2.2.3-3)
(2.2. 3 —4)
(Xi, Yi), (X, Y),
(X, Y.2 are the coordinate values of the control points for calculating widening and
heightening respectively.
Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
3. For circular tunnels constructed by shield, the tunnel construction limit shall be determined according to the minimum curve radius of the entire line.
4. The construction limit of the turnout area shall be widened and heightened on the straight section according to the widening amount calculated according to the relevant dimensions of different types of turnouts and vehicles and the heightening amount required for installing equipment. In the turnout guide curve range The widening amount within the enclosure shall be calculated according to the following formula:
1. Inside widening
2. Outside widening
Ro—turnout guide curve radius (mm).
(2.2.3—5)
(2.2.3—6)
5. The building limit of the vertical curve section shall be raised on the straight section according to the height increase calculated based on the different vertical curve radii and relevant vehicle dimensions. The height increase shall be calculated according to the following formula:
1. Concave vertical curve
2. Convex vertical curve
(2.2.3—7)
(2.2.3 —8)
Wherein, R1 and R2 are the radii of the concave and convex vertical curves (mm) respectively. VI. The platform height of the straight section of the station should be lower than the floor surface of the carriage, and the height difference should be 50-100mm. The gap between the edge of the platform and the outer side of the carriage should be 100mm.
Article 2.2.4 The contact rail limit should be determined based on the offset, inclination and wear of the current collector, the contact rail installation error, the track deviation, the electrical clearance and other factors. Article 2.2.5 The straight section tunnel limit and coordinate value are as follows: , the circular tunnel limit of the interval straight section (Figure 2.2.5-1); Engineering Construction Standard Full Text Information System
W.bzsosO.coI 52 are the coordinate values of the control points for calculating widening and heightening.
Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
3. For circular tunnels constructed by shield, the tunnel construction limit should be determined according to the minimum curve radius of the entire line.
4. The construction limit of the turnout area should be widened and heightened on the straight section according to the widening amount calculated according to the relevant dimensions of different types of turnouts and vehicles and the heightening amount required for installing equipment. The widening amount within the turnout guide curve should be calculated according to the following formula:
1. Inside widening
2. Outside widening
Ro—Turnout guide curve radius (mm).
(2.2.3—5)
(2.2.3—6)
5. The building limits of the vertical curve section should be increased on the straight section according to the height increase calculated based on the different vertical curve radii and the relevant dimensions of the vehicle. The height increase should be calculated according to the following formula:
1. Concave vertical curve
2. Convex vertical curve
(2.2.3—7)
(2.2.3 —8)
Where R1, R2—respectively represent the radii of the concave and convex vertical curves (mm). 6. The platform height of the straight section of the station should be lower than the floor surface of the carriage, and the height difference should be 50-100mm. The gap between the edge of the platform and the outer side of the carriage should be 100mm.
Article 2.2.4 The contact rail limit shall be determined based on the offset, inclination and wear of the current collector, contact rail installation error, track deviation, electrical clearance and other factors. Article 2.2.5 The straight section tunnel limit and coordinate value are as follows: , interval straight section circular tunnel limit (Figure 2.2.5-1); Engineering Construction Standard Full Text Information System
W.bzsosO.coI 52 are the coordinate values of the control points for calculating widening and heightening.
Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
3. For circular tunnels constructed by shield, the tunnel construction limit should be determined according to the minimum curve radius of the entire line.
4. The construction limit of the turnout area should be widened and heightened on the straight section according to the widening amount calculated according to the relevant dimensions of different types of turnouts and vehicles and the heightening amount required for installing equipment. The widening amount within the turnout guide curve should be calculated according to the following formula:
1. Inside widening
2. Outside widening
Ro—Turnout guide curve radius (mm).
(2.2.3—5)
(2.2.3—6)
5. The building limits of the vertical curve section should be increased on the straight section according to the height increase calculated based on the different vertical curve radii and the relevant dimensions of the vehicle. The height increase should be calculated according to the following formula:
1. Concave vertical curve
2. Convex vertical curve
(2.2.3—7)
(2.2.3 —8)
Where R1, R2—respectively represent the radii of the concave and convex vertical curves (mm). 6. The platform height of the straight section of the station should be lower than the floor surface of the carriage, and the height difference should be 50-100mm. The gap between the edge of the platform and the outer side of the carriage should be 100mm.
Article 2.2.4 The contact rail limit shall be determined based on the offset, inclination and wear of the current collector, contact rail installation error, track deviation, electrical clearance and other factors. Article 2.2.5 The straight section tunnel limit and coordinate value are as follows: , interval straight section circular tunnel limit (Figure 2.2.5-1); Engineering Construction Standard Full Text Information System
W.bzsosO.coI 5
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