老采空区超高水材料注浆减沉监测与效果评价  

Monitoring and effect evaluation of subsidence reduction by superhigh-water material in old goaf

作　　者：李明 张兆江 温成龙 张曦 LI Ming;ZHANG Zhaojiang;WEN Chenglong;ZHANG Xi(College of Mining and Geomatics Engineering,Hebei University of Engineering,Handan 056038,China;Collaborative Innovation Center of the Comprehensive Development and Utilization of Coal Resources,Handan 056038,China;Handan Design Engineering China Coal Co.,Ltd.,Handan 056031,China)

机构地区：[1]河北工程大学矿业与测绘工程学院,河北邯郸056038 [2]河北省煤炭资源综合开发与利用协同创新中心,河北邯郸056038 [3]中煤邯郸设计工程有限责任公司,河北邯郸056031

出　　处：《中国矿业》2020年第8期147-151,共5页China Mining Magazine

摘　　要：老采空区注浆减沉效果的监测和评价对采煤沉陷区的合理利用和注浆减沉方案的优化具有重要意义。本文以邯矿集团聚隆矿业有限公司下伏老采空区为研究对象,对老采空区注浆充填过程中地表监测点进行现场实测,并对注浆后的减沉效果进行评价分析。结果表明:对老采空区进行注浆后,与不进行注浆时相比地表减沉25%;监测点受注浆影响下沉速度明显减缓,监测期间地表下沉量显著减小。对老采空区进行注浆能够减小地表下沉,有效地保证地表建(构)筑物的安全运营。The monitoring and evaluation of the effect of grouting and sinking are important for the rational utilization of the coal mining subsidence area and the optimization of grouting and sinking scheme in the old goaf.In this study,the old goaf of Julong Mining Group Co.,Ltd.is taken as the research object,the point surface monitoring is measured on site in the grouting filling process of the old goaf,and is evaluated effect through sinking after grouting.The results show that the surface subsidence is reduced by 25% compared with without grouting after grouting in the old goaf;the subsidence speed of the monitoring point is obviously slowed down by the grouting,and the surface subsidence is significantly reduced during the monitoring period.Grouting to old goaf could reduced the surface subsidence and ensured the safe operation of the surface construction.

关 键 词：注浆减沉 减沉率 概率积分法 减沉效果 

分 类 号：TD823.7[矿业工程—煤矿开采]