摘要
针对矿体和含水层的分布特征以及现场施工条件开展巷道综合性地球物理超前探测研究,可确保井巷安全掘进和矿山安全开采。分别基于瞬变电磁法、TSP超前预报、钻孔地质雷达开展巷道超前探测,综合解析掌子面前方不良地质情况,同时验证各项技术的适用性。结果表明:综合物探技术在试验巷道掌子面前方准确探测出强含水性的断层破碎带及次级破碎带或裂隙。瞬变电磁法和钻孔地质雷达对含水体敏感;瞬变电磁法能确定产状位置,但是存在浅部盲区;TSP超前预报对弹性分界面判断效果较好。
In view of the distribution characteristics of ore bodies and aquifers and on-site construc tion conditions,comprehensive geophysical advanced detection research in rodway can be carried out to en sure safe tunneling and safe mining.Based on the transient electromagnetic method,TSP advanced predic tion and borehole geological radar,the advanced detection of roadway is carried out,and the bad geologi cal conditions in front of the face are comprehensively analyzed,and the applicability of each technology is verified.The results show that the comprehensive geophysical prospecting technology can accurately detect the strong water-bearing fault fracture zone and secondary fracture zone or fissure in front of the test road way face.Transient electromagnetic method and borehole geological radar are sensitive to water.Transient electromagnetic method can determine the position of occurrence,but there is a blind area in the shallow part.TSP advanced prediction has a good effect on the judgment of elastic interface.
作者
杨柱
高超
徐磊
李开
滕龙
YANG Zhu;GAO Chao;XU Lei;LI Kai;TENG Long(Changsha Mining Research Institute Co.,Ltd.;State Key Laboratory of Metal Mine Safety Technolo gy;Hunan Mine Geological Disaster Prevention and Environmental Reconstruction Engineering Technol ogy Research Center)
出处
《现代矿业》
CAS
2023年第4期183-186,190,共5页
Modern Mining
基金
湖南省2021年度安全生产预防及应急专项资金项目(编号:2021-QYC-3500305-26408)。
关键词
超前探测
瞬变电磁法
TSP
钻孔地质雷达
advanced detection
transient electromagnetic method
TSP
borehole radar
