可控源音频大地电磁测深在北京城市地质调查中的作用

随着社会发展,城市规模也在扩大,为了适应城市有序发展需要,一些城市的地质调查工作已经开始。由于城市环境的特殊性,地质调查难度相应很大,好多问题需要解决,其中难度较大的是地层划分和地质构造探测等深部地质问题。北京市城市地质调查工作刚刚开始,在此之前,采用可控源音频大地电磁测深方法在北京市及周边地区的地热资源、水文地质和工程地质等深部地质调查工作中做过大量工作,文中利用部分应用实例,介绍可控源音频大地电磁测深法在北京市基础地质调查中的作用以及在地层划分和深部地质构造勘查等方面的实际应用效果。

THE ROLE OF CONTROLLED- SOURCE AUDIO MAGNETOTELLURIC SOUNDING METHOD IN GEOLOGICAL SURVEY OF BEIJING

With the development of the society,cities are expanding.In order to meet the needs of cities' development,some cities began to make geological survey.Because of the special environment in some cities,the difficulty for the geological survey is much bigger,so lots of problems need to be solved.Among them,strata division and geological structure detecting and other geological problems are much more difficult.The work for making geological survey in Beijing city just began.Before the survey,we did a lot of work by adopting controlledsource audio magnetotelluric sounding method to make a geological survey of geothermal resources,hydrogeology and engineering geology in Beijing and its neighbor areas.This paper introduces the role of the controlledsource audio magnetotelluric sounding method in the geological survey in Beijing and the practical effect of the method on strata division and geological deep structure.