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GB/T 45530-2025: Technical specification for earth-rockfill dam safety monitoring
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Technical specification for earth-rockfill dam safety monitoring
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GB/T 45530-2025
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Basic data | Standard ID | GB/T 45530-2025 (GB/T45530-2025) | | Description (Translated English) | Technical specification for earth-rockfill dam safety monitoring | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | P59 | | Classification of International Standard | 27.140 | | Word Count Estimation | 30,398 | | Date of Issue | 2025-04-25 | | Date of Implementation | 2025-11-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 45530-2025: Technical specification for earth-rockfill dam safety monitoring---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 27.140
CCSP59
National Standard of the People's Republic of China
Technical specification for safety monitoring of earth-rock dams
Released on 2025-04-25
2025-11-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of contents
Preface III
1 Scope 1
2 Normative references 1
3 Terms, definitions and abbreviations 1
4 General Requirements 4
5 Monitoring system design 4
6 Monitoring system installation, commissioning and acceptance 9
7 Monitoring system operation and maintenance 12
Appendix A (Normative) Signs and units of monitored physical quantities 16
Appendix B (Normative) Deformation and seepage monitoring accuracy of earth-rock dams 17
Appendix C (Normative) Classification and selection of monitoring items 18
Appendix D (Normative) Monitoring Items Test Times 20
Appendix E (Informative) Monitoring system maintenance items and cycles 22
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents"
Drafting.
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document is proposed and coordinated by the China Electricity Council.
This document was drafted by. National Energy Administration Dam Safety Supervision Center, Ministry of Water Resources Dam Safety Management Center, China Power Construction East China Survey and Design Center
China Gezhouba Group Survey and Design Co., Ltd., Yangtze River Survey, Planning, Design and Research Co., Ltd., China Electric Power
Kunming Survey and Design Institute Co., Ltd., Yellow River Survey, Planning and Design Institute Co., Ltd., China Water Resources and Hydropower Eighth Engineering Bureau Co., Ltd.
Company, Nanjing NARI Water Resources and Hydropower Technology Co., Ltd., Xiaolangdi Hydropower Project Management Center of the Ministry of Water Resources, State Grid Xinyuan Group Co., Ltd., Guoneng Group
Duhe River Basin Hydropower Development Co., Ltd. and Hangzhou National Hydropower Station Dam Safety and Emergency Engineering Technology Center Co., Ltd.
The main drafters of this document are. Huang Wei, Zhou Jianbo, Han Rongrong, Wang Shijun, Tan Kaiyan, Dong Yong, Peng Shaocai, Zhang Libing, Li Yinan, Xie Changjiang,
Hu Bo, Gao Aimin, Liu Fu, Ke Hu, Huang Huibao, Hu Dizhong, Yang Ge, Fu Chunjiang, Wu Weiyu, Gu Yanchang, Li Shaolin, Zou Qing, Qin Yun, Zhao Pengpeng,
Cui Gang, Wei Liwei, Hai Dechen, Liu Beibei, Xiong Yanmei, Jiang Dejun.
Technical specification for safety monitoring of earth-rock dams
1 Scope
This document specifies the technical requirements for earth-rock dam safety monitoring design, installation, commissioning and acceptance, operation and maintenance.
This document is applicable to the dam bodies, dam foundations, dam shoulders, water discharge and energy dissipation structures of Class 1, Class 2 and Class 3 earth-rock dams, as well as
Safety monitoring of slopes near the dam reservoir bank and hub area shall be carried out as a reference for level 4 and level 5 earth-rock dams.
2 Normative references
The contents of the following documents constitute essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
GB/T 12897 National first and second class leveling specifications
GB/T 12898 National third and fourth grade leveling specifications
GB/T 16818 Specification for medium and short range photoelectric distance measurement
GB/T 17942 National Triangulation Specification
GB/T 18314 Global Navigation Satellite System (GNSS) Measurement Specification
GB/T 22385 Acceptance specification for dam safety monitoring system
GB/T 35226 Specification for ground-based meteorological observations Air temperature and humidity
GB/T 50138 Water level observation standard
3 Terms, definitions and abbreviations
3.1 Terms and Definitions
The following terms and definitions apply to this document.
3.1.1
The period from when the reservoir begins to store water to when it reaches (or approaches) the normal water level.
Note. If the normal water level is not reached within one year after the start of water storage, it will be regarded as the first year after the start of water storage.
3.1.2
The first 3 years after the first impoundment period.
3.1.3
Operation period operationperiod
The period after the initial accumulation period.
3.1.4
observation
Use various instruments or equipment or manually complete a data collection and recording activity.
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