联合剖面法在隐伏构造调查中的应用

Application of Joint Profile Method in Investigation of Concealed Structure

电阻率剖面法是用以研究地电断面横向电性变化的一类方法,一般采用固定的电极距并使电极装置沿剖面移动,这样便可以观测到在一定深度范围内视电阻率沿剖面的变化。联合电阻率剖面法是电剖面法中最重要的方法,由于它是由两个三极装置组合而成,提供了较其它电剖面法更为丰富的地质信息,加之其具有分辨能力强和异常明显等优点,因此在工程地质勘察中划分不同岩性的接触带、追索断层及构造破碎带等方面获得了广泛应用。通过介绍联合剖面法在新疆某水库工程区隐伏构造调查中的应用情况和对测试成果的分析,说明其在隐伏构造调查中所取得的实际应用效果。

The resistivity profiling method is used to study a class of methods of geoelectric section lateral electrical change.Generally it uses the fixed electrode and makes it move along the profile so as to observe the variation of apparent resistivity within certain depth along the profile.The joint resistivity profile method is the most important method in electrical profile method.Because it is composed of two triode device which,compared to other electrical profile method,provides more abundant geological information.In addition it has the strong distinguishing ability and obvious advantages;therefore it is widely applied in different lithology of engineering geological investigation and division of the contact zone,tracing fault and structural fracture zone.Combing with the are application of joint profile method for concealed structure engineering survey and the test results in a reservoir in Xinjiang area,concealed structure survey and the actual application effect are discussed in the paper.