瞬变电磁法在采空区探测中的数据处理与解释——以大同鹊山煤矿为例

Processing and Interpretation of Transient Electromagnetic Data in Goaf Detection——A Case Study of Datong Queshan Coal Mine

煤矿的采空区与断层探测中,瞬变电磁探测的数据经常会受到干扰。文章首先运用自动强干扰剔除,再进行横纵方向的滤波处理,并通过测井资料对比和计算机分析,对数据进行一维经验反演,查明该区域内采空区和断层的富水性,保证煤矿的安全建设与生产。

Contaminated by noises, conventional processing of transient electromagnetic sounding data fails to generate reliable interpretation in coal mined-out area.This paper analyses data by using a method automatic reject the large disturbance and process of the noises in the data, and 1-d inversion for the transient electromagnetic data by computer analysis and the log data comparison. And we discusses inversion of TEM data based on one dimension model by using computer analysis and the log data comparison. Experiments show that TEM can make sure of goaf seeper and water-rich fault.