杜儿坪矿南七3#煤盘区探放水技术研究

摘要

杜儿坪矿南七盘区2#煤采空积水量70~80万m3 ,受水害影响,下部3#煤未采,为尽快解放上组3#煤及中组煤,需提前探放2#煤采空积水. 通过采取选择合适的位置和层位掘送专用放水巷、合理布置钻场、设计钻孔、从低压区到高压区逐步探放等综合技术手段,对采空区积水进行治理,消除了水害隐患,保证了矿井的正常安全生产,并延长了矿井的开采年限,达到了预期效果.%There are 700~800 thousands m3 goaf water of No.2 coal in the south seventh panel of Du' erping coal mine.Because affected by the water disaster, under No.3 coal is unquarried.For liberateing up No.3 coal and the middle part coal as soon as possible, need to advance exploring and discharging No.2 coal goaf water.By using comprehensive exploration techniques of which select a suitable location and layer to dig special drainage tunnel, rea-sonably arrange drill site, design drilling, from the low pressure zone to the high pressure zone gradually explore and discharge and other, control goaf water, eliminate the hidden trouble of water disaster, ensure the normal and safe production of the coal mine and prolong the production life of the coal mine, achieve the desired effect.