高密度电法在厦-成高速公路段四川大田头大桥勘察中的应用

The Application of 2D Resistivity Imaging Survey to the Datiantou Bridge Engineering Geological Investigation

高密度电法是一种以地球物理为基础,集电剖面和电测深为一体,采用高密度布点,进行二维地电断面测量,研究地下介质体电阻率差异的一种勘查技术。在此,以厦门至成都公路四川境川黔界至纳溪段高速公路C9合同段大田头大桥为例,介绍了高密度电法的基本原理及其在勘查中的应用效果。

The 2d resistivity imaging slarvey is a geophysical prospecting technique based on the difference of resistivity of underground medium. This method usually is used to survey 2D geoelectric cross section. This paper deals with the application of this technique to the Datiantou Bridge engineering geological investigation in C9 contract section from Sichuan-Guizhou boundary to Naxi in the Xiamen-Chengdu Expressway.