摘要
在近水巷道掘进中,潜在的水患是影响矿井安全生产的关键因素之一。为封堵掘进巷道前方导水裂隙及溶岩通道,新安煤矿通过施工探放水孔确定前方水害分布情况并通过下放三级套管固孔深孔注浆方法来确保掘进期间的安全工作。通过对新安煤矿14230工作面中部底板岩巷三级套管注浆前后效果的比对,表明三级套管深孔注浆技术能够实现定向封堵并提高封堵效果的目的,为水害防治工作提供一种参考办法。
The potential flood is one of the most important factors influencing the mine production safety while driving laneway near the water.In order to make sure the safety while dirving, The coal mine of Xin＆#39;an grouting cement by three-stage casing in dirlling holes deeply to plugging fractured water and lava ahead.We get that the grouting cement deeply by three-stage casing can achieve the pur-pose of plugging directional and improving the effect of blocking after contrast the effect of grouting cement before and after, we aslo provide a way to prevention and control the disasters of water.
出处
《煤》
2015年第7期17-19,共3页
Coal
关键词
三级套管
深孔注浆
定向封堵
治水技术
three-stage casing
grouting cement deeply
plugging directional
prevention the disasters of water
