摘要
煤巷掘进是煤矿生产中最重要、最危险的步骤,开采过程中会发生突水、岩爆、崩塌和火灾等灾害,严重影响煤矿工人的人身安全。尽早发现煤矿掘进工作面前方水害情况,是防止水害事故、确保巷道施工安全的重要技术举措。本文首先完成了典型地电模型的瞬变电磁法超前探测数值模拟,结合数值模拟确定了掘进机在不同距离造成的影响。富水区、漏水区和断层区的现场验证表明,巷道瞬变电磁发射器和接收端距离在20 m以外时,其对响应信号的影响较小。
Coal roadway excavation is the most important and most dangerous step in coal mine production,during the mining process,disasters such as water inrush,rock burst,collapse and fire will occur,which seriously affect the personal safety of coal miners.Early detection of water hazards in front of coal mine excavation face is an important technical measure to prevent water hazards and ensure the safety of roadway construction.This paper firstly completes the numerical simulation of the transient electromagnetic method of the typical geoelectric model,and determines the influence of the roadheader at different distances combined with the numerical simulation.The field verification of the water-rich area,the leakage area and the fault area shows that when the distance between the tunnel transient electromagnetic transmitter and the receiving end is more than 20 m,its influence on the response signal is small.
作者
范育典
FAN Yudian(China University of Geosciences(Beijing),Beijing 100000,China)
出处
《中国资源综合利用》
2022年第5期50-52,共3页
China Resources Comprehensive Utilization
关键词
瞬变电磁法
水害
掘进工作面
地电模型
数值模拟
transient electromagnetic method
water damage
excavation face
geoelectric model
numerical simulation
