基建矿井巷道施工防探水方案研究

Scheme study of water preventing and prospecting during the roadway construction of projected mine

透水事故是煤矿五大灾害之一。基建矿井在建成永久排水系统之前,排水能力脆弱,巷道施工中防探水工作更加重要。本文以北阳庄矿井北翼轨道大巷为例,通过对区域水文地质条件的综合分析,提出北翼轨道大巷掘进过程中的防探水方案,重点分析、探查赋水区以及导水通道,采用井上下立体综合探查手段,新区域施工坚持有掘必探,即物探与钻探相结合,以井下探查工程为主,物探先行,钻探验证,优化钻孔设计施工,实现巷道安全施工。

Water inrush accident is one of the live main disasters of eoal ndning.The water drainage ability of projected mine is weak hefore the permanent drainage system is built,and the water preventing and prospecting is very important.Taking the north wing track roadway of Beiyangzhuan mine as example,through the comprehensive analysis ol the regional hydrogeologic condition,the water preventing and prospecting scheme was put forward for the tunnel excavation.The prospecting of water enrichment area and the water-diversion passage were emphatically analyzed,and the integrated prospecting method was adopted.The new area construction adhered to tunneling with prospecting,geophysical prospecting and drilling combination,taking the underground prospecting as the main engineering,geophvsieal prospecting before the drilling verification to optimize the drilling design and construction,and to realize the roadway salely construction.