CSAMT在煤矿水文勘查中的应用效果研究

The Application of CSAMT to Hydrologic Exploration in a Coal Mine

可控源音频大地电磁法(Controlled Source Audiomagnetotelluric Method,CSAMT)以其勘探深度大、分辨率高等特点,广泛应用于地下水资源勘查、金属矿勘查、石油勘查、工程地质勘查领域。应用该方法在宁夏宁东煤田某煤矿进行水文地质勘查,成功圈定出古近系-基岩分化带含水层的相对富水区,并对断层的导水性进行了评价,井下钻探验证结果良好,取得了较好的地质效果。

Controlled Source Audiomagnetotelluric Method （CSAMT） is extensively used in the underground water resources exploration, metal mine exploration, oil exploration and engineering geological exploration for its characteristics of exploration depth, high resolu- tion and so on. Applying this method to the hydrogeologieal exploration in a coal mine of Ningdong, in Ningxia, we successfully predict the relative rich water area of aquifer in bed- rock weathered zone in Paleogene System, and assess the hydraulic conductivity of the faults. The result of downhole drilling test is well. We get a better geological effect.