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中华人民共和国电力行业标准土石坝安全监测技术规范

中华人民共和国电力行业标准土石坝安全监测技术规范

出版社:中国电力出版社出版时间:2019-10-01
开本: 21cm 页数: 131页
本类榜单:工业技术销量榜
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中华人民共和国电力行业标准土石坝安全监测技术规范 版权信息

中华人民共和国电力行业标准土石坝安全监测技术规范 本书特色

本标准规定了土石坝的安全监测项目布置、仪器设备安装埋设、仪器监测、巡视检查及资料整编分析等的要求。本标准适用于1级、2级、3级土石坝的安全监测工作,4级、5级土石坝可参照使用。等级划分按DL 5180执行。

中华人民共和国电力行业标准土石坝安全监测技术规范 内容简介

  This standard specifies the requirements for monitoring items layout, installation and embedment of instruments, instrumentation monitoring, visual inspection and data compilation and analysis relating to earth and rock-fill dam safety.  This standard is applicable to safety monitoring of earth rock-fill dams of Grades 1, 2 and 3, and may be referenced for earth rock-fill dams of Grades 4 and 5. Dam classification is in accordance with Standard DL 5180.

中华人民共和国电力行业标准土石坝安全监测技术规范 目录

Foreword
1 Scope
2 Normative References
3 Terms and Definitions
4 General Provisions
5 Visual Inspection
6 Environmental Quantities Monitoring
7 Deformation Monitoring
8 Seepage Monitoring
9 Pressure (Stress) and Temperature Monitoring
10 Data Compilation and Analysis
Appendix A (Normative) Safety Monitoring Items and Monitoring Frequency for Earth Rock-fill Dam
Appendix B (Informative) Visual Inspection
Appendix C (Informative) Structural Schematic Diagram of Datum Marks and Monitoring Points for Deformation Monitoring
Appendix D (Informative) Installation and Embedment oflntemal Deformation Monitoring Instruments
Appendix E (Informative) Installation and Embedment Method of Face Slab Deformation Monitoring Instruments
……

Appendix F (Informative)
Appendix G (Normative)
Appendix H (Informative)
Appendix I (Informative)
Appendix J (Normative)
Appendix K (Informative)
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中华人民共和国电力行业标准土石坝安全监测技术规范 节选

  《中华人民共和国电力行业标准(DL/T 5259-2010):土石坝安全监测技术规范(英文版)》:  7.2.1 Arrangement of surface deformation monitoring points:  1 Surface deformation includes vertical displacement, transverse horizontal displacement which is perpendicular to dam axis, and longitudinal horizontal displacement which parallels to the dam axis, and the surface deformation monument shall be located at least 1.0m away from barriers.  2 The number of monitoring lines parallel to dam axis should not be less than four, among which one or two lines should be respectively arranged on the upstream and downstream sides on dam crest, and one line be arranged above normal pool level on the upstream dam slope, and one to three lines be arranged above the half height of dam and one or two lines(including one line at the dam toe) be arranged below the half height of dam on the downstream slope. For the dam on a soft foundation, additional one or two lines should be arranged at the dam toe downstream.  Temporary monitoring lines may be arranged below the normal pool level on the upstream dam slope, according to actual requirements. For a high concrete face rock-fill dam, temporary monitoring lines for the construction period shall be arranged on the top of upstream face slabs and on the cushion materials at corresponding positions of each stage. .  3 Some monitoring points shall be arranged at the intersections between monitoring lines and monitoring sections, and additional monitoring points may be set according to dam structures, material zoning, topographical and geological conditions. The spacing ranging from 20m to 50m should be adopted for monitoring points in the dam with dam axis less than 300m, and the spacing from 50m to 100m should be adopted in the dam with dam axis longer than 300m. For the high dam constructed in a V-shape valley or the dam with steep terrain, monitoring points on the dam crest near both banks shall be densified.  7.2.2 Arrangement of datum points and working datum points:  1 Working datum points for a collimating line: one point shall be respectively set on the extension line on both banks of each collimating line, whose elevation should be near to that of the monitoring points and whose foundation should be rock or solid earth. In the case of broken dam axis or dam with dam axis more than 500m, additional working datum points, which may be substituted with monitoring points, may be set on the break points or in the middle of each longitudinal row of monitoring points.  Checking datum points, which may be used for displacement correction of working datum point of a collimating line, shall be set on a solid foundation and on the extension line of the line connecting the same row of working datum points of both banks, and one or two points shall be respectively arranged on both banks. If conditions permit, horizontal deformation monitoring network or plumb line may be used for displacement measurement and correction of working datum points of the collimating line.  2 Working datum points for the linear-angular intersection method: two working datum points should be respectively set on stable bedrock or solid soil foundation of upstream and downstream dam surface to measure their horizontal displacement. If conditions permit a horizontal deformation monitoring network or an inverted plumb line may be used for displacement correction of working reference points.  ……

中华人民共和国电力行业标准土石坝安全监测技术规范 作者简介

本标准由中国电力企业联合会提出。本标准由电力行业大坝安全监测标准化技术委员会归口。本标准负责起草单位:中国水电顾问集团华东勘测设计研究院。本标准参加起草单位:国家电力监管委员会大坝安全监察中心、中国水电顾问集团昆明勘测设计研究院、中国水电顾问集团贵阳勘测设计研究院、中国水电顾问集团北京勘测设计研究院。本标准主要起草人:王玉洁、颜义忠、耿贵彪、沈海尧、蒋波、赵花城、邹青、蒋剑、郑晓红。

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