地震层析成像技术在坝肩地质缺陷评价中的应用  

Application of seismic tomography in evaluation of geological defects of dam abutment

作　　者：王胜[1] 黄润秋[1] 冉从彦[2] 祝华平[2] 

机构地区：[1]成都理工大学地质灾害防治与地质环境保护国家重点实验室,成都四川610059 [2]中国水电顾问集团成都勘测设计研究院,四川成都610072

出　　处：《人民长江》2012年第11期50-52,共3页Yangtze River

基　　金：雅砻江水电开发联合研究基金重点项目(50539050)

摘　　要：以锦屏一级水电站左岸坝肩抗力体1 785 m高程基础处理洞室群为工程研究背景,采用地震层析成像技术对其地质缺陷进行评价,以便为加固处理提供可靠依据。介绍了地震层析成像技术的原理和方法,重点对地震层析成像解译结果与现场岩体质量分级结果进行了对比分析。结果表明,采用地震层析成像技术对复杂地质条件下坝肩地质缺陷进行分析评价是可行的,分析结果比较可靠。可为同类工程参考。The geological defect evaluation by using seismic tomography are evaluatedis conducted according toaiming at resis- ting rock of the foundation processing treatment cavities with on elevation 1 785 m in the left bank abutment resisting rock of Jin- ping I Hydropower Station to provide reinforcement measures. The principle and method of seismic tomography are introduced, and the results of seismic tomography and the quality classification of rock mass on the spot are significantly compared and ana- lyzed. The analytical result shows that it is feasible to evaluate geology defects of bank abutment under the complicated geological conditions by using seismic tomography, and the result is relatively reliable with a promising application.

关 键 词：地震层析成像 坝肩抗力体 地质缺陷 锦屏一级水电站 

分 类 号：P64[天文地球—地质矿产勘探]