CSAMT探测断层在北京新区规划中的应用  

Fault detection by CSAMT and its application to new district planning in Beijing

作　　者：李帝铨[1] 底青云[1] 王光杰[1] 李英贤[1] 石昆法[1] 岳安平[1] 白大为[1] 

机构地区：[1]中国科学院地质与地球物理研究所,北京100029

出　　处：《地球物理学进展》2008年第6期1963-1969,共7页Progress in Geophysics

基　　金：中国科学院知识创新工程重要方向项目(KZCX2-YW-121);973:2006CB2002206资助

摘　　要：为了给规划中的北京市某新区提供基础地质资料,需查明区内断裂的准确位置、产状以及覆盖层厚度.利用CSAMT方法进行了勘察工作,由于区内人文干扰和电磁干扰严重,野外施工时采用了多种手段以保证观测数据的可信度;数据处理时利用作者开发的基于遗传算法的CSAMT全资料反演程序对野外数据进行反演.分析反演结果并结合已知地质资料,给出了区内断裂的准确位置等信息.为新区规划提供了可靠的基础资料.In order to provide basic geological information for a new planning district in Beijing, it is necessary to identify the precise location of the faults, the thickness of the overburden, and estimate the activity of the faults. We used CSAMT method for survey work. As there was strong electromagnetic interference in the survey area, we took many means to ensure the data obtained credible. By employing genetic algorithms full data inversion program for data inverse, we achieved a good result. With comprehensive analysis of the geophysics and geological data, we have determined the precise locations of faults, and provided reliable information for the new district planning.

关 键 词：可控源音频大地电磁 新区规划 遗传算法 全资料反演 

分 类 号：P631[天文地球—地质矿产勘探]