定向探放及局部疏放在水害防治中的应用研究
Research on the Application of Directional Exploration and Local Drainage in Water Disaster Prevention and Control
谷圆中1
作者信息
- 1. 晋能控股煤业集团马脊梁矿,山西 大同 037000
- 折叠
摘要
针对某煤矿生产中巷道掘进和工作面回采期间的水害问题,提出定向探放、注浆支护的综合防治和"长期局部疏放、短期集中疏放"的防治方法,结合工作面实际水文地质条件进行工程应用,结果表明:利用现有疏放钻孔及新增的5个疏放钻孔,最终疏放水时间减少至108 d,工作面整体疏放水效果良好,时间合理,工程量和成本可控.
Abstract
In response to the water damage problem during the excavation of tunnels and the mining of working faces in a coal mine,a comprehensive prevention and control method of directional exploration and grouting support,as well as a prevention and control method of"long-term local drainage and short-term centralized drainage",were proposed.Combined with the actual hydrogeological conditions of the working face,the engineering application was carried out.The results showed that using the existing drainage boreholes and the five newly added drainage boreholes,the final drainage time was reduced to 108 days,and the overall drainage effect of the working face was good,the time was reasonable,and the engineering quantity and cost were controllable.
关键词
定向探放/疏放/巷道/回采Key words
targeted exploration and release/release/tunnel/stoping引用本文复制引用
出版年
2024
NETL
NSTL
万方数据