贵州习水县矿山采空区地球物理特征及地层电性特征

Geophysical and Stratigraphic Electrical Characteristics of Mined-out Areas in Xishui County, Guizhou Province

矿山采空区地层及地球物理场通常会形成不同类型的异常,一种为地层电阻率的异常发育,另外一种因能源开采部分地带出现塌陷,电阻率的背景值升高异常,本文结合实际情况,采用可控源音频大地电磁法对贵州省习水县矿山已出露地层的电性特征综合进行测定,为采空区的勘测提供可靠依据。

The strata and geophysical fields in mined-out areas of Mines usually form different types of anomalies,one is the abnormal development of formation resistivity,the other is the abnormal increase of background resistivity due to collapse in some areas of energy exploitation.In this paper,the method of controllable source audio magnetotelluric(CSAMT)is used in Guizhou Province in combination with the actual situation.The electrical characteristics of the exposed strata in Shuixian Mine are determined comprehensively,which provides a reliable basis for the survey of goaf.