高密度电法在探测隐伏岩性分界面中的应用

Application of high density resistivity method in detecting concealed lithologic interface

高密度电法是工程地质勘查中较为常用的一种物探方法,具有分辨率高、工作效率高、自动化程度高和异常特征明显等特点,因此在岩溶勘查、确定第四系覆盖层的厚度、寻找地下水等领域均有比较广泛的应用。本文结合实际的工程实例,从高密度电法的原理着手,对确定第四系覆盖层与基岩分界面的探测中高密度电法的应用的可行性进行了分析,并通过与钻探成果进行比较,探讨灰岩地区探测隐伏岩性分界面的埋深调查工程中高密度电法的可靠性。

High-density resistivity method is one of the most commonly used geophysical prospecting methods in engineering geological exploration. It has the characteristics of high resolution, high working efficiency, high automation and OBVIOUS ABNORMAL CHARACTERISTICS Therefore, it is widely used in karst exploration, determining the thickness of quaternary overburden and searching for groundwater. In this paper, the feasibility of the application of the high-density resistivity method in the detection of the interface between the quaternary overburden and Bedrock is analyzed from the principle of the high-density resistivity method, and compared with the drilling results This paper discusses the reliability of high density resistivity method in the investigation of buried depth for detecting concealed lithologic interface in limestone area.