GB 50287-1999 Specification for geological investigation of water conservancy and hydropower projects
Some standard content:
Engineering Construction Standard Full-text Information System
National Standard of the People's Republic of China (
GB50287-99
Code for water resources andhydropower engineering geological investigation
1999-03-04
1999-08-01
State Administration of Quality and Technical Supervision
Ministry of Construction of the People's Republic of China
Engineering Construction Standard Full-text Information System
Jointly Issued
Engineering Construction Standard Full-text Information System
National Standard of the People's Republic of China
Code for water resources andhydropower engineering geological investigation investigationGB50287-99
Editor department: Ministry of Water Resources of the People's Republic of China, former Ministry of Electric Power Industry of the People's Republic of China
Approval department: Ministry of Construction of the People's Republic of China Effective date: August 1, 1999
1999 Beijing
Engineering Construction Standard Full-text Information System
Engineering Construction Standard Full-text Information System
Notice on the release of the national standard
"Specifications for Geological Investigation of Water Conservancy and Hydropower Projects"
Construction Standard [1999] No. 69
According to the requirements of the "1986 Engineering Construction Standard Specification and Budget Quota Formulation and Revision Plan" (Annex 17 of Document No. 250 of the State Planning Commission), the "Specifications for Geological Investigation of Water Conservancy and Hydropower Projects" jointly formulated by the Ministry of Water Resources and the former Ministry of Electric Power Industry together with relevant departments has been reviewed and approved as a mandatory national standard by relevant departments, with the number GB50287-99. It has been in effect since 19 It will be implemented on August 1, 1999. This specification is managed by the Ministry of Water Resources and the State Power Corporation, interpreted by the General Institute of Hydropower and Water Conservancy Planning and Design, and published and distributed by the China Planning Press organized by the Standard and Norms Research Institute of the Ministry of Construction.
Ministry of Construction of the People's Republic of China
March 4, 1999
Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
This specification is based on the requirements of the State Planning Commission's Document No. 250 [1986], and is under the responsibility of the Ministry of Water Resources and the former Ministry of Electric Power Industry. It is specifically compiled by the former General Institute of Hydropower and Water Conservancy Planning and Design of the Ministry of Electric Power Industry, the General Institute of Hydropower and Water Conservancy Planning and Design of the Ministry of Water Resources, and the Tianjin Survey and Design Institute of the Ministry of Water Resources, the Department of Geological Environment Management of the Ministry of Geology and Mineral Resources, the Institute of Geology of the Chinese Academy of Sciences, the Institute of Geology of the State Seismological Bureau, and other survey, design and scientific research units. It was approved by the Ministry of Construction on March 4, 1999 with the document No. 69 [1999] of Jianbiao [1999], and jointly issued with the State Administration of Quality and Technical Supervision.
During the preparation of this specification, the drafting team conducted extensive investigations and studies, carefully summarized the practical experience of geological surveys for water conservancy and hydropower engineering in my country, absorbed relevant scientific research results, and referred to relevant international standards and advanced foreign experience. It also widely solicited opinions from relevant units across the country, and was finally approved by the Ministry of Water Resources and the former Ministry of Electric Power Industry in conjunction with relevant departments.
If any amendments and supplements are found during the implementation of this specification, please send your opinions and relevant materials to the General Institute of Water Resources and Hydropower Planning and Design (Beijing Liupukang, postal code 100011) for reference in future revisions. The editorial unit, participating units and main drafters of this specification are as follows: Editor-in-chief: Former Hydropower and Water Conservancy Planning and Design Institute of the Ministry of Electric Power Industry; Former Hydropower and Water Conservancy Planning and Design Institute of the Ministry of Water Resources
Participating units: Tianjin Survey and Design Institute of the Ministry of Water Resources; Geological Environment Management Department of the Ministry of Geology and Mineral Resources
Institute of Geology, Chinese Academy of Sciences
Institute of Geology, State Seismological Administration
Former Guiyang Survey and Design Institute of the Ministry of Electric Power Industry; Former East China Survey and Design Institute of the Ministry of Electric Power Industry; Former Kunming Survey and Design Institute of the Ministry of Electric Power Industry; Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
Northeast Survey and Design Institute of Ministry of Water Resources
Water Resources and Hydropower Research Institute
Main Drafters: Zhu Jianye
Shao Weizhong
Dai Guangxiu
Zhou Canxin
Ren Jinwei
Engineering 2 Construction Standard Full Text Information System
Kong Lingyu
Zhou Yingbo
Chen Zuan
Hao Jiaxing||tt| |Wang Xingben
Yang Guowei
Cao Erbin
Wang Wenshao
Zou Xiaoan
Wu Jianzhong
Engineering Construction Standard Full-text Information System
Basic Provisions
Engineering Geological Survey in the Planning Stage
General Provisions
Regional Geology and Earthquake
3.3 Reservoirs
3.5 Long Water Diversion Lines
3.6 Survey Report
00000000000| |tt||C000000000609
Engineering geological survey in feasibility study stage
-General provisions
0000000
Regional structural stability
Water diversion route and plant site
Spillway.
Natural building materials
Survey report
Engineering geological survey in preliminary design stage
General provisions
Reservoir
Underground cavern
Channel ·
Engineering Construction Standards Full-text Information System
000000
(35)
Engineering Construction Standards Full-text Information System
5.6 Sites of Ground Power Stations and Pumping Stations
5.7 Spillway..
5.8 Navigational Buildings
5.9 Natural Building Materials
5.10 Investigation Report
Engineering Geological Investigation in the Technical Design Phase
General Provisions.
Speciality Investigation of engineering geological problems
Construction geology.
Appendix A
Appendix B
Appendix C
Appendix D
Appendix E
Appendix F
Appendix G
Appendix H
Appendix J
Appendix K
Appendix L
Appendix M
Appendix N
Appendix P
Appendix to engineering geological investigation report
Karst leakage evaluation
Immersion evaluation
Values of parameters of rock and soil physical and mechanical properties
Division of rock weathering zones
Slope stability analysis
Evaluation of environmental water corrosion on concrete
Discrimination of loess collapsibility
Rock and soil permeability classification…
Rock structure classification
Engineering geological classification of dam foundation rock mass
Discrimination of soil seepage deformation
Discrimination of soil liquefaction
Engineering geological classification of surrounding rock
This Explanation of the terms used in the specification
Engineering 2 Construction Standard Full Text Information System
·(45)
(47)
(49)
(58)
：(66)
：(67)
(68)
Engineering Construction Standard Full Text Information System
1 This specification is formulated to unify the geological survey of water conservancy and hydropower projects, clarify the depth of survey work, and ensure the quality of survey work. 1.0.1
This specification is applicable to the geological survey of large-scale water conservancy and hydropower projects. 1.0.3
3 In addition to complying with this specification, the geological survey of water conservancy and hydropower projects shall also comply with the provisions of the relevant mandatory standards currently in force in the country. Engineering Construction Standards Full Text Information System
Engineering Construction Standards Full Text Information System
2 Basic Provisions
2.0.1 The geological survey of water conservancy and hydropower projects should be divided into four survey stages: planning, feasibility study, preliminary design and technical implementation design. The work of each survey stage should be consistent with the depth of the design work of the corresponding stage.
The tasks of engineering geological survey at each stage should be determined according to the requirements of the survey task book or survey contract.
The survey task book or survey contract should clearly define the design stage, design intent, engineering technical indicators and survey requirements, and should be accompanied by a schematic diagram of the project layout. 2.0.3 Before carrying out field work, the survey unit shall collect and analyze the existing geological data in the project area, conduct field surveys, understand the natural conditions and working conditions of the site, and prepare an engineering geological survey outline in accordance with the basic requirements of this specification in combination with the design plan. The survey outline can be appropriately adjusted according to changes in geological conditions during implementation. The engineering geological survey outline should include the following contents: 2.0.4
Survey purpose, project overview and survey stage, 2
Topographic and geological overview and working conditions of the survey area; 3
Content, method and planned workload of the survey work: 4
Planned progress and completion date;
Type and quantity of submitted materials;
Budget and others;
Schematic diagram of survey project layout.
Engineer geological survey at each stage should first conduct engineering geological mapping and should meet the following requirements:
1The scale of engineering geological mapping should be selected according to the survey stage, project characteristics and site geological conditions.
2 Engineering geological surveys of various scales should have outcrop observation points or exploration points. Engineering 2 Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
3 Remote sensing data such as artificial satellites, aerial surveys and land photographs can be used for geological interpretation in engineering geological surveys. The interpretation results should be tested and verified in the field. 2.0.6 When the site topography and geotechnical conditions are suitable, geophysical exploration technology should be used and appropriate geophysical exploration methods should be selected.
2.0.7 Exploration projects such as pits, holes, caves and wells should be used in a comprehensive manner. Before construction, the drilling structure and construction procedures of various types of boreholes should be specially designed, and they should be constructed according to the design. 2.0.8 Geotechnical tests should be carried out by combining indoor tests and in-situ tests. Geotechnical tests should be mainly indoor tests, supplemented by in-situ tests. Rock tests should be given equal weight to indoor tests and in-situ tests. The items, quantity and methods of various tests should be selected in combination with the survey stage and engineering characteristics. Various specimens and in-situ test points should be geologically representative.
9 All original data in the survey work should be true, accurate and complete, and should be sorted and comprehensively analyzed in time. At the end of the survey work, an engineering geological survey report should be compiled and submitted.
Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
3 Engineering geological survey in the planning stage
3.1 General provisions
Engineering geological survey in the planning stage should conduct geological demonstration for river development plans and the selection of recent water conservancy and hydropower development projects, and provide engineering geological data. 3.1.2
2 The survey in the planning stage should include the following contents: 1 Understand the regional geological and seismic overview of the planned river or river section; 2 Understand the geological conditions and major engineering geological problems of each cascade reservoir, and analyze the possibility of building a reservoir;
3 Understand the engineering geological conditions of each cascade dam site, and analyze the possibility of building a dam; 4 Understand the engineering geological conditions of the long water diversion line; 5 Understand the occurrence of natural building materials near each cascade dam site. Note: Long water diversion line refers to a tunnel or channel with a length greater than 2km. 3.2 Regional geology and seismology
3.2.1 The regional geological and seismic survey of the planned river or river section should include the following contents: 1 The distribution range, formation age and lithology and lithofacies characteristics of intrusive rocks, extrusive rocks, metamorphic rocks and sedimentary rocks in the region, and the genetic type and composition of Quaternary sediments. 2 The main structural units, types, occurrences, scales and tectonic activity history of folds and faults in the region, historical earthquake conditions and earthquake intensity, etc. 3 The topography and landforms of the region, the development of terraces and the distribution range. 4 Distribution of large debris flows, landslides, karst, mobile sand dunes and frozen soil.
5 Distribution of major aquifers and impermeable layers, burial depth of groundwater, elevation, type and flow of springs, etc.
3.2.2 Regional geological and seismic surveys should compile and draw regional comprehensive geological maps of planned rivers or river sections based on the collection and analysis of the latest regional geological records and regional geological maps of various existing engineering construction standards full-text information system
engineering construction standards full-text information system
. When regional data on rivers or river sections are missing, satellite or aerial photographs should be interpreted and route geological surveys should be conducted to compile and draw regional comprehensive geological maps. 3.2.3 The scale of the regional comprehensive geological map of the planned river or river section can be selected from 1:500000 to 1:100000, and the scope of the regional comprehensive geological map should meet the needs of the planning scheme.
3.3 Reservoirs
The survey of each cascade reservoir should include the following contents: 1 Understand the geological and hydrogeological conditions of the reservoir. 2 Understand the distribution range of landslides, potentially unstable slopes, debris flows, banks and submergence that may threaten the establishment of the reservoir.
3 Understand the karst development in soluble rock areas, the distribution range of aquifers and impermeable layers, the groundwater level in river valleys and watersheds, and analyze the possibility of leakage in the reservoir.
4 Understand the distribution of important minerals and historical sites. 3.3.2 Reservoir surveys can be carried out in conjunction with regional geological research. When a reservoir may have engineering geological problems such as leakage, banks, and submergence, engineering geological mapping of the reservoir area should be carried out, and exploration projects can be arranged as needed. 3.3.3 The scale of engineering geological survey for reservoirs can be 1:100000~1:50000, and 1:50000~1:25000 for soluble rock areas. The scope of engineering geological survey for reservoir leakage should be expanded to the watershed and adjacent valleys.
3.4 Dam site
The investigation of each cascade dam site should include the following contents: 1. Understand the geomorphic characteristics of the dam site;
2. Understand the genetic type of Quaternary sediments at the dam site, the thickness, layers and composition of the covering layers on both banks and the riverbed, the distribution of special soils and the permeability of soils; 3. Understand the stratum lithology, bedrock type and distribution of weak rock layers at the dam site. Engineering Construction Standard Full Text Information System1 The regional geological and seismic survey of the planned river or river section shall include the following contents: 1 The distribution range, formation age and lithology and lithofacies characteristics of intrusive rocks, extrusive rocks, metamorphic rocks and sedimentary rocks in the region, the genesis type and composition of Quaternary sediments. 2 The main structural units, types, occurrences, scales and tectonic activity history of folds and faults in the region, historical earthquake conditions and earthquake intensity, etc. 3 The topographic and geomorphic morphology, terrace development and distribution range of the region. 4 The distribution of large-scale debris flows, landslides, karst (karst), mobile sand dunes and frozen soil.
5 The distribution of major aquifers and impermeable layers, the burial depth of groundwater, the outcropping elevation, type and flow rate of springs, etc.
3.2.2 The regional geological and seismic survey work shall compile and draw the regional comprehensive geological map of the planned river or river section on the basis of collecting and analyzing the latest regional geological records and regional geological maps of various existing engineering construction standard full-text information system
engineering construction standard full-text information system
engineering construction standard full-text information systemwww.bzxz.net
When regional data on rivers or river sections are lacking, satellite or aerial photographs should be interpreted and route geological surveys should be conducted to compile regional comprehensive geological maps. 3.2.3 The scale of the regional comprehensive geological map of the planned river or river section can be 1:500000~1:100000, and the scope of the regional comprehensive geological map should meet the needs of the planning scheme.
3.3 Reservoirs
The survey of each cascade reservoir should include the following contents: 1 Understand the geological and hydrogeological conditions of the reservoir. 2 Understand the distribution range of landslides, potentially unstable slopes, debris flows, banks and submergence that may threaten the establishment of the reservoir.
3 Understand the karst development in soluble rock areas, the distribution range of aquifers and impermeable layers, the groundwater level in river valleys and watersheds, and analyze the possibility of leakage in the reservoir.
4 Understand the distribution of important minerals and historical sites. 3.3.2 Reservoir surveys can be carried out in conjunction with regional geological research. When the reservoir may have engineering geological problems such as leakage, bank, and submergence, engineering geological mapping of the reservoir area should be carried out, and exploration projects can be arranged as needed. 3.3.3 The scale of engineering geological mapping of reservoirs can be selected from 1:100000 to 1:50000, and 1:50000 to 1:25000 in soluble rock areas. The scope of engineering geological mapping of reservoir leakage should be expanded to the watershed and adjacent valleys.
3.4 Dam site
The investigation of each cascade dam site should include the following contents: 1. Understand the geomorphic characteristics of the dam site;
2. Understand the genesis type of Quaternary sediments at the dam site, the thickness, layers and composition of the covering layers on both banks and the riverbed, the distribution of special soils and the permeability of soils; 3. Understand the stratigraphic lithology of the dam site, the type of bedrock and the distribution pattern of weak rock layers. Engineering Construction Standard Full-text Information System1 The regional geological and seismic survey of the planned river or river section shall include the following contents: 1 The distribution range, formation age and lithology and lithofacies characteristics of intrusive rocks, extrusive rocks, metamorphic rocks and sedimentary rocks in the region, the genesis type and composition of Quaternary sediments. 2 The main structural units, types, occurrences, scales and tectonic activity history of folds and faults in the region, historical earthquake conditions and earthquake intensity, etc. 3 The topographic and geomorphic morphology, terrace development and distribution range of the region. 4 The distribution of large-scale debris flows, landslides, karst (karst), mobile sand dunes and frozen soil.
5 The distribution of major aquifers and impermeable layers, the burial depth of groundwater, the outcropping elevation, type and flow rate of springs, etc.
3.2.2 The regional geological and seismic survey work shall compile and draw the regional comprehensive geological map of the planned river or river section on the basis of collecting and analyzing the latest regional geological records and regional geological maps of various existing engineering construction standard full-text information system
engineering construction standard full-text information system
engineering construction standard full-text information system
When regional data on rivers or river sections are lacking, satellite or aerial photographs should be interpreted and route geological surveys should be conducted to compile regional comprehensive geological maps. 3.2.3 The scale of the regional comprehensive geological map of the planned river or river section can be 1:500000~1:100000, and the scope of the regional comprehensive geological map should meet the needs of the planning scheme.
3.3 Reservoirs
The survey of each cascade reservoir should include the following contents: 1 Understand the geological and hydrogeological conditions of the reservoir. 2 Understand the distribution range of landslides, potentially unstable slopes, debris flows, banks and submergence that may threaten the establishment of the reservoir.
3 Understand the karst development in soluble rock areas, the distribution range of aquifers and impermeable layers, the groundwater level in river valleys and watersheds, and analyze the possibility of leakage in the reservoir.
4 Understand the distribution of important minerals and historical sites. 3.3.2 Reservoir surveys can be carried out in conjunction with regional geological research. When the reservoir may have engineering geological problems such as leakage, bank, and submergence, engineering geological mapping of the reservoir area should be carried out, and exploration projects can be arranged as needed. 3.3.3 The scale of engineering geological mapping of reservoirs can be selected from 1:100000 to 1:50000, and 1:50000 to 1:25000 in soluble rock areas. The scope of engineering geological mapping of reservoir leakage should be expanded to the watershed and adjacent valleys.
3.4 Dam site
The investigation of each cascade dam site should include the following contents: 1. Understand the geomorphic characteristics of the dam site;
2. Understand the genesis type of Quaternary sediments at the dam site, the thickness, layers and composition of the covering layers on both banks and the riverbed, the distribution of special soils and the permeability of soils; 3. Understand the stratigraphic lithology of the dam site, the type of bedrock and the distribution pattern of weak rock layers. Engineering Construction Standard Full-text Information System
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.