立井井筒过含水老空巷综合支护及堵水技术  

Grouting Water Sealing Technology for Mine Shaft Sinking Through Water Bearing Goaf

作　　者：崔永红[1] 

机构地区：[1]山西晋城煤业集团勘察设计院有限公司,山西晋城048006

出　　处：《煤炭工程》2015年第2期41-43,46,共4页Coal Engineering

摘　　要：针对立井井筒过含水老空巷引起的围岩冒落空洞和突水问题,结合润东煤矿回风立井现场施工情况,提出了"联合支护+注浆充填"综合支护及堵水技术,现场应用结果表明:应用注浆充填堵水技术后,井筒涌水量从50m3/h降到0.5m3/h以下,堵水效果明显;采用"联合支护+注浆充填"技术支护冒落带空洞后,井筒破碎段围岩承载性能和抗变形能力显著提高,井壁完整无断裂现象,支护效果显著。Aiming at the surrounding rock caving cavity and water inrush during vertical shaft sinking crossing roadway of water bearing goal, water blocking technology and comprehensive support scheme of ＂combined supporting ＋ grouting＂ were proposed, based on the situation of air return shaft construction in Rundong Coal Mine. The effect of grouting water blocking was favorable, with mine discharge reduced from 50m^3/h to 0. 5m^3/h; and the effect of caving zone cavity support, with ＂ combined supporting and grouting＂ scheme, was significant with bearing capacity and deformation resistance of mine shaft surrounding rock in broken section significantly improved.

关 键 词：立井井筒 含水老空巷 围岩冒落 联合支护 注浆充填 堵水技术 

分 类 号：TD265.4[矿业工程—矿井建设] TD745.2