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由于地面高密度电法受到装置类型和地形的影响,不能准确反映地质情况。本文重点介绍了井间电阻率CT的工作方法,针对实际工作,进行数值模拟试验和正反演计算,并在探测浅部岩溶和检测深部帷幕注浆效果工程中进行了井间电阻率CT的应用。总结数据采集过程中的注意事项,并将成果与钻孔资料进行对比分析,取得了较好的效果。
Due to the influence of device type and topography on terrestrial high-density electric method, the geological conditions can not be accurately reflected. This paper focuses on the working method of crosswell resistivity CT. For practical work, numerical simulation test and forward and inversion calculation are carried out, and the application of crosswell resistivity CT in detecting shallow karst and testing deep curtain grouting effect . Summarize the precautions in the data acquisition process, and compare the results with the drilling data, and achieved good results.