矿井瞬变电磁法富水体超前探测原理及应用研究

Principle of Advance Detection of Water-enriched Body with Mine Transient Electromagnetic Method and Its Application

由于对煤矿工作面顶底板和掘进工作面前方富水构造情况不清,导致近年来煤矿井下水害频发。介绍了矿井瞬变电磁法超前探测原理、井下探测工艺、数据采集和资料处理流程,总结出富水异常体解释和划分方法。应用YCS40矿用本安型瞬变电磁观测系统对霍州煤电集团文明煤矿掘进工作面进行了超前探测研究,结果表明矿井瞬变电磁法能够比较准确地预报掘进工作面前方100 m内的富水异常体。

The unclear water-enriched structure in the roof and floor strata of the coal face and in front of the heading face led to the frequent occurrence of mine water disasters in recent years.This paper described the advance detection principle,underground detection technology,data acquisition and data processing of the mine transient electromagnetic method and summarized the explanation and classification methods of the abnormal water-enriched body.The advance detection research was carried out with YCS40 transient electromagnetic observation system in Wenming Mine of Huozhou Coal Electricity Group Co.,Ltd.,and research results showed that the use of the mine transient electromagnetic method can more accurately predict the water-enriched anomaly in 10m range in front of the heading face.