HG/T 20574-1995 Technical regulations for engineering survey of general layout and transportation design of chemical enterprises
Some standard content:
Industry Standard of the People's Republic of China
HG/T 20574 -- 95
General Layout and Transportation Design of Chemical Enterprises
Technical Regulations for Engineering Survey
1995-08-28 Issued
1995 -- 11 -- 01
Ministry of Chemical Industry of the People's Republic of China
Document of the Ministry of Chemical Industry
Chemical Construction Development (1995) No. 646
Notice on Issuing the Industry Standard "Technical Regulations for Engineering Survey for General Layout and Transportation Design of Chemical Enterprises" The "Technical Regulations for Engineering Survey for General Layout and Transportation Design of Chemical Enterprises" organized by the Ministry's General Layout and Transportation Design Technology Center and edited by Sinopec Lanzhou Design Institute has been reviewed and approved as a recommended industry standard with the number HG/T20574-95. It will be implemented on November 1, 1995.
This standard is managed by the Ministry's General Layout Transportation Design Technology Center Station and published and distributed by the Ministry's Engineering Construction Standard Editing Center. Ministry of Chemical Industry
August 28, 1995
Industry Standards of the People's Republic of China
Technical Regulations for Engineering Measurement of General Layout Transportation Design of Chemical Enterprises
HG/T 20574--95
Editing Unit: Lanzhou Design Institute of Sinopec
Approving Department: Ministry of Chemical IndustrywwW.bzxz.Net
Effective Date: October 1995 - Engineering Construction Standard Editing Center of Ministry of Chemical Industry
Survey in Feasibility Study Stage
Survey in Preliminary Design and Construction Drawing Design Stage Survey of Railway and Road Lines
Survey of Land Area of Wharf
Survey of Reconstruction and Expansion Projects
Engineering Survey Letter of Authorization
Appendix A Explanation of Terms Used in These Regulations
Explanation of Articles
(1)
(6)
(8)
1 General Provisions
1.0.1 These Regulations are formulated to unify the technical requirements for engineering survey of general layout and transportation design of chemical enterprises, accurately provide the surveying and mapping data required for design, ensure the accuracy of survey results in each design stage and the completeness of content, so as to meet the needs of engineering design and construction. 1.0.2·This regulation applies to the technical requirements for engineering surveying of the general layout transportation design of chemical enterprises, except for chemical mines.
1.0.3. This regulation includes topographic surveys of various construction sites for new, rebuilt and expanded projects of chemical enterprises and line surveys of railways and roads. Special engineering surveys such as docks and underwater terrain are not included.
1.0.4 The engineering survey accuracy and general technical requirements required for the general layout transportation design of chemical enterprises shall comply with the provisions of the current national standard "Engineering Survey Specification". The survey content can be appropriately increased or decreased according to the specific circumstances of the project.
1.0.5 Engineering surveying is generally divided into feasibility study (including site selection), preliminary design and construction drawing design according to the engineering design stage. It can also be carried out once according to the requirements of the construction drawing design stage according to the scale of the project, construction requirements and workload, and try to achieve multiple uses for one survey.
1.0.6 In addition to implementing this regulation, the technical requirements for engineering surveying of the general layout transportation design of chemical enterprises shall also comply with the provisions of the current relevant national standards and specifications. m2 Feasibility study stage measurement
2.0.1 The scale of the topographic map should be 1:1000~~1:5000 according to the complexity of the terrain and the size of the area of the survey.2.0.2 The coordinate system of the plane control measurement should be used in areas where there is a plane control network. If there are multiple coordinate systems in the local area, the interchange relationship between the various coordinate systems should be explained. If the local plane control network has not yet been established, the magnetic north orientation can be used to establish a control network or use an assumed coordinate system. 2.0.3 The 1985 national height datum should be used for the elevation control measurement system. In areas where there is an elevation control network, the original elevation system can be used, but the interchange relationship between the elevation and the 1985 national height datum should be explained. When it is difficult to conduct elevation joint measurement in a small survey area, the assumed elevation can be used.
2.0.4 In the survey area, no less than 3 plane and elevation control points should be buried as needed, and protective measures should be taken.
2.0.5 If there is a 1:500~~1:1000 topographic map in the construction area, and it can reflect the existing landforms and landforms, the scale of the topographic map can be reduced as needed. 2.0.6. The scope of the survey area should be determined based on the adopted scale, existing topographic data, topographic features, project scale and development land and other special requirements. Generally, it can be expanded by 100~~500m on each side of the project land. 2.0.7 The names of existing enterprises or engineering facilities, village and town settlements and cultural relics within the survey area should be indicated.
3.0.1 Surveying during the preliminary design and construction drawing design stage · The scale of the topographic map should be determined based on the nature of the project, design stage, project scale and terrain complexity, and can be selected according to Table 3.0.1. Scale of topographic map
Scale
1:500
:1000
+1a1000-
1:2000
Wang Chengxiang'er
Factory area (buildings
design stage
·intensive and outer corridor initial construction drawings
small size)
This, residential
area production outside engineering| |tt||Wide area, residential
area, off-site engineering
ancestral design, construction drawing
project scale
large, medium and small
small
large, medium
topographic conditions:
complex terrain
simple terrain
simple terrain
In the preliminary design stage, it is allowed to reduce the large-scale topographic map for use. For engineering projects with lower accuracy requirements (such as residential areas, waste dump main step-down stations, etc.), small-level scale topographic maps can be used to enlarge.
3.0.3 The basic contour interval of the topographic map can be determined according to the scale of the topographic map and the size of the ground inclination angle, and selected according to Table 3.0.3. However, in the same survey area and the same scale, it is advisable to use the following basic contour intervals:
--
Ground inclination angle
·a3°
3°100
1025°
α≥25°
Basic contour interval of topographic map
1:1000
1:2000
3.0.4 The plane control coordinate system should be consistent with the coordinate system of topographic (geodes) survey or urban (regional) survey in the feasibility study stage, and the building coordinate system can also be used according to the plane layout.
When there are several coordinate systems in a survey area, joint surveys should be carried out as needed and the conversion relationship between them should be determined.
3.0.5 The selection of the elevation control system should be consistent with the requirements of the feasibility study stage. When there are more than two elevation systems in or near the survey area, joint surveys should be carried out and their conversion relationship should be calculated.
3.0. The scope of the survey area should be expanded by 50~200m on each side of the project design land area according to the adopted scale, and the reserved development land can be surveyed at one time. 3.0.7 For each independent area outside the factory area, a topographic map consistent with the requirements of the area survey map should be surveyed as needed, and a plane coordinate and elevation system consistent with the factory area should be adopted, or a joint survey with the factory area should be conducted.
3.0.8 In the survey area, no less than 3 permanent control points of plane and elevation should be buried in combination with the overall layout of the project. The buried specifications and point requirements of its signs and markers should be carried out in accordance with the relevant provisions of the current national standard "Engineering Survey Code". 3.0.9 The name, diameter, center position, etc. of the above-ground pipelines within the survey area should be indicated: the voltage level should be noted for high-voltage transmission lines, and the height of the pole 4
w.bzsos.com (tower) should also be noted for overhead high-voltage lines; the line name and level should be noted for important communication lines. If there are underground pipelines, the name, diameter, buried depth, center position of the pipeline, etc. should be indicated. 3.0.10. When there are surface water bodies (rivers, canals, lakes, ponds, pools) within the survey area, the elevation of the underwater ground should be measured. The measuring points should be arranged according to the cross section and the cross section direction should be perpendicular to the shoreline (or mainstream direction): the spacing of the cross section should be 2cm on the topographic map: the spacing of the measuring points should be 1cm on the topographic map. According to the terrain changes and the requirements of the surrounding area, the spacing of the cross section can be appropriately increased or relaxed. At the same time, the water surface elevation should be measured and the date of measurement should be indicated. When there is a well, the well platform, well bottom and water level elevation should be measured. The railways and highways within the survey area should be measured according to the requirements of the current national standard "Engineering Survey 3.0.11
Specifications", and the elevations of the railway track tops, highways, line shoulders and intersections should be measured. When railways, highways and overhead pipelines intersect each other, the true clearance height should be measured to be 3.0.12 When there are regional drainage (flood) ditches within the survey area, the width and elevation of the ditch top and bottom should be measured.
4 Railway and road line measurement
4.0.1-· When there is no 1:1000~1:2000 topographic map for the railway and road outside the factory in the preliminary design stage, and no 1:500~～1:2000 topographic map in the construction drawing design stage, the railway and road line strip topographic measurement should be carried out. 4.0.2. The scale of the railway and road topographic map section measurement is generally selected according to Table 4.0.2.
Scale of railway, road topographic map and cross-section map Graphic name
Scale
Strip topographic map
1:1000
1:2000
Longitudinal section
1:1000
1:2000
Cross-section
Horizontal, vertical
When conducting railway and road survey and line selection in various stages before preliminary design, only strip topographic map can be measured. Cross-section measurement is required in the line determination stage. The spacing between cross sections can be determined according to the complexity of the terrain.
The survey width of the line strip topographic map can be 50~100m. 4.0.3±
4.0.4 Where the line intersects with existing pipelines, rivers, ponds (lakes, pools) or ditches, the cross-section, intersection angle and elevation or clearance height of the intersection point should be measured as needed, and their names should be noted.
The line measurement should be measured in plane and elevation with the adjacent existing lines and related transportation facilities.
4.0.6 Where bridges and culverts are to be built, the river (ditch) bed topography cross-section diagram should be measured according to design requirements, and the water level elevation should be measured, and the survey period should be noted. 6
5 Dock land area measurement
5.0.1 The general technical requirements for the dock land area site topography measurement can be the same as the factory plant area topography measurement.
The coordinate system and elevation system of the dock land area site measurement should be consistent with the coordinate system and elevation system of the wide area measurement. If they are inconsistent, the measurement should be carried out in conjunction and the conversion relationship should be calculated.
The permanent plane and elevation control points set up in the survey area shall be located above the highest water (tide) level 5.0.2
, and the foundation shall be stable and the visibility shall be good. 5.0.3 During the preliminary design and construction drawing design stage, the scale of the topographic map shall be 1:500 or 1:1000. The basic contour interval of the topographic map shall be selected in accordance with the provisions of 3.0.3 of these regulations. 5.0.4 During the preliminary design and construction drawing design stage, cross-section measurement shall be carried out. The number, length, spacing and direction of the cross-section lines shall be determined according to the terrain conditions and design needs. The measurement accuracy and general technical requirements shall be implemented in accordance with the relevant provisions of the current "Technical Specifications for Port Engineering Survey" issued by the Ministry of Transport.
5.0.5 Surveying and mapping of waterside lines: The coastline shall be based on the high tide line: The waterside lines of rivers, lakes, reservoirs, etc. are generally measured according to the water level at the time of surveying. The water level elevation and survey date shall be indicated in the survey.
5.0.6 The scope of the land survey area is determined according to the scale and development needs of the wharf, and is generally expanded by 50200m on each side of the wharf facility layout area. 6 Reconstruction and expansion project measurement
6.0.1 When there is a lack of completion data in the constructed area of the reconstruction and expansion project, the current map measurement (detailed measurement) should be carried out: when there is a lack of topographic maps reflecting the current status of the terrain and landforms in the unconstructed area, a topographic survey should be carried out. The scale of the current map measurement can be 1:500 in the factory area and 1:500~1:1000 outside the factory.
6.0.2 The control measurement of the reconstruction and expansion project should generally adopt the coordinate and elevation system used in the original design. When the original coordinate system is the building coordinate network, the relationship between the building coordinates and the regional coordinate system should be measured as needed. 6.0.3 The survey contents of the current status map of general buildings, structures and engineering pipelines shall be carried out in accordance with the relevant provisions of the current national standard "Engineering Survey Code" on the survey of current status maps of industrial and mining areas and the compilation and actual measurement of the general plan of completion (the survey requirements of the trestle can be the same as the survey requirements of overhead pipelines). The coordinate values of no less than 3 corner points of buildings and structures related to reconstruction and expansion projects should be measured.
6.0.4 The coordinates and elevations of the equipment positions, peripheral corner points and frames of relevant facilities (such as floors, drainage ditches, retaining walls, etc.) and pipe gallery columns related to reconstruction and expansion projects should be measured for open-air production devices. When there are many equipments and the density is high, the equipment and structures in the device area can be drawn as needed, and the scale is 1:100~1:200:6.0.5 For open-air bridge crane driving yards, the coordinates of the four peripheral corner columns and the ground elevation should be measured. For gantry crane driving yards, the coordinates of the center of the running track and the elevation of the track top should be measured.
6.0.6 The center coordinates and diameter of the storage tank should be measured. If there is a dike, the coordinates of the intersection of the center line of the dike and the top and bottom widths of the dike should also be measured. At the same time, the top surface of the tank foundation, the top and the ground elevation inside and outside the dike should be measured. The measurement results should indicate the name of the material stored in the tank. 6.0.7 Underground buildings and structures such as underground storage tanks, pools, tunnels and civil air defense facilities! 83. The measurement contents of the current status map of general buildings, structures and engineering pipelines shall be carried out in accordance with the relevant provisions of the current national standard "Engineering Survey Code" on the current status map measurement of industrial and mining areas and the compilation and actual measurement of the general plan of the completed project (the measurement requirements of the trestle can be the same as the measurement requirements of the overhead pipeline). The coordinate values of no less than 3 corner points of buildings and structures related to the reconstruction and expansion projects should be measured.
6.0.4 The coordinates and elevations of the equipment positions, peripheral corner points and frames of relevant facilities (such as floors, drainage ditches, retaining walls, etc.) and pipe gallery columns related to the reconstruction and expansion projects should be measured for open-air production devices. When there are many equipments and the density is large, the equipment and structures in the device area can be mapped as needed, and the scale is 1:100~1:200:6.0.5 For open-air bridge crane driving yards, the coordinates of the four peripheral corner columns and the ground elevation should be measured. For gantry crane driving yards, the coordinates of the center of the driving track and the elevation of the track top should be measured.
6.0.6 The center coordinates and diameter of the storage tank should be measured. If there is a dike, the coordinates of the intersection of the center line of the dike and the top and bottom widths of the dike should also be measured. At the same time, the top surface of the tank foundation, the top and the ground elevation inside and outside the dike should be measured. The measurement results should indicate the name of the material stored in the tank. 6.0.7 Underground buildings and structures such as underground storage tanks, pools, tunnels and civil air defense facilities! 83. The measurement contents of the current status map of general buildings, structures and engineering pipelines shall be carried out in accordance with the relevant provisions of the current national standard "Engineering Survey Code" on the current status map measurement of industrial and mining areas and the compilation and actual measurement of the general plan of the completed project (the measurement requirements of the trestle can be the same as the measurement requirements of the overhead pipeline). The coordinate values of no less than 3 corner points of buildings and structures related to the reconstruction and expansion projects shall be measured.
6.0.4 The coordinates and elevations of the equipment positions, peripheral corner points and frames of relevant facilities (such as floors, drainage ditches, retaining walls, etc.) and pipe gallery columns related to the reconstruction and expansion projects shall be measured for open-air production devices. When there are many equipments and the density is large, the equipment and structures in the device area can be mapped as needed, and the scale is 1:100~1:200:6.0.5 For open-air bridge crane driving yards, the coordinates of the four peripheral corner columns and the ground elevation shall be measured. For gantry crane driving yards, the coordinates of the center of the running track and the elevation of the track top shall be measured.
6.0.6 The center coordinates and diameter of the storage tank should be measured. If there is a dike, the coordinates of the intersection of the center line of the dike and the top and bottom widths of the dike should also be measured. At the same time, the top surface of the tank foundation, the top and the ground elevation inside and outside the dike should be measured. The measurement results should indicate the name of the material stored in the tank. 6.0.7 Underground buildings and structures such as underground storage tanks, pools, tunnels and civil air defense facilities! 8
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