桑树坪矿3307-2工作面底板水精准防治技术研究
Research on precise prevention and control technology of floor water in No.3307-2 Face of Sangshuping Mine
王名贺1
作者信息
- 1. 陕西陕煤韩城矿业有限公司桑树坪二号井,陕西韩城 715407
- 折叠
摘要
桑树坪矿煤层底板承压含水层富水性和透水性极不均一,为了实现3307-2工作面的安全开采,通过实施音频电透视,探查出了3个异常区,对异常区进行探查的钻孔均有不同程度的出水现象,经过疏放后所有钻孔的单孔涌水量均小于0.5m3/h,疏放结束后实施了注浆加固工程,共计注入水泥159袋,最终实现了 3307-2工作面的安全开采,证明音频电透视与钻探和注浆相结合的精准防治水技术有效,为矿井后续防治水工作提供了技术借鉴.
Abstract
The water abundance and permeability of the confined aquifer in the coal seam floor of Sangshuping Mine are extremely uneven.In order to realize the safe mining of No.3307-2 Face,three abnormal areas were detected by implementing audio electrical perspective.The drilling holes in the abnormal area had different degrees of water outflow.After the drainage,the water inflow of all drilling holes was less than 0.5 m3/h.After the drainage,the grouting reinforcement project was carried out,and a total of 159 bags of cement were injected.Finally,the safe mining of No.3307-2 Face was realized,which proved that the precise water prevention and control technology combined with audio electrical perspective,drilling and grouting was effective.It provided technical reference for the follow-up water prevention and control work of the mine.
关键词
承压含水层/音频电透视/钻探注浆/水害防治Key words
confined aquifer/audio electrical perspective/drilling grouting/water disaster prevention and control引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据