高密度电法和土壤氡测量在滇中某地岩土工程勘察中的应用

Application of High Density Electrical Method and Soil Radon Measurement in Geotechnical Investigation in Central YunNan Province

在滇中某场地岩土工程勘察中投入高密度电法和土壤氡测量对拟建工程影响较大的浅部持力层结构进行探测,推断了软弱下卧层、基岩起伏、风化壳、岩溶和活动性断裂等不良工程地质。结合同期开展的钻探和开方剥离等验证工程对此次物探效果进行对比分析,总体来看探测效果较好,成果为后期工程建设提供有利技术支撑。

In the geotechnical engineering investigation of a certain site in central Yunnan Province,the shallow bearing layer structure,which greatly affects to-be-constructed the engineering,is researched by the high-density electrical method and soil radon measurement,detecting the bad engineering geology,such as soft substratum,bedrock relief,weathering crust,karst and active fault.This geophysical exploration effect was compared and analyzed in combination with the drilling and excavation stripping and other verification projects carried out in the same period.On the whole,the exploration effect is good,and the results provide favorable technical support for the later engineering construction.It is hoped that the technical methods involved in this paper can provide reference for geotechnical engineering investigation in adjacent areas or similar working conditions.