高密度电法在岩溶勘察中的应用和研究

Application of High Density Resistivity to Karst Detecting

岩溶是喀斯特地区一种典型的不良地质体,其对工民建各方面质量安全影响很大。高密度电法作为岩溶勘察的一种常用方法已被广泛应用,但高密度电法受地形和接地条件等因素影响较大,且其装置类型较多,资料解译复杂;高密度电法探测效果往往因人而异。本文主要针对这些问题逐条加以分析和总结,提出高密度电法探测岩溶时合理的装置模式,正确的数据采集模式,合理的资料处理和解释模式;最后根据某铁路路基工点探测实例验证并得出结论。

Karst is a kind of typical poor geological body in karst areas, which affects the safety and quality in all aspects of civil engineering. The high density resistivity as a com- mon method of karst investigation has been widely used, but high denshy resistivity is in- fluenced by the terrain and ground conditions and other factors, and it has many types of devices and the data interpretation is complex. Aiming at these problems, this paper analy- zes and summarizes them. It proposes the karst device mode, the correct data acquisition mode and the reasonable data processing and interpretation mode in the high--density resis- tivity detecting. Finally, by taking a railway suhgrade detecting as an instance, it draws a conclusion.