富水围岩平硐渗漏水的注浆堵水治理  

Grouting Water Plugging for Adit in Water-rich Surrounding Rock

作　　者：王洋 李臣[4] 陶雷[4] WANG Yang;LI Chen;TAO Lei(China Coal Mining Research Institute Co.,Ltd,Beijing 100013,China;Mining Design Division,Tiandi Technology Co.,Ltd,Beijing 100013,China;Mining Research Branch of The General Institute of Coal Science Research,Beijing 100013,China;School of Energy and Mining,China University of Mining and Technology(Beijing),Beijing 100083,China)

机构地区：[1]中煤科工开采研究院有限公司,北京100013 [2]天地科技股份有限公司开采设计事业部,北京100013 [3]煤炭科学研究总院开采研究分院,北京100013 [4]中国矿业大学(北京)能源与矿业学院,北京100083

出　　处：《矿业研究与开发》2021年第3期57-62,共6页Mining Research and Development

基　　金：国家自然科学基金项目(51704294,51434006);中央高校基本科研业务费项目(2020YJSNY09).

摘　　要：针对何家塔煤矿辅运平硐围岩渗漏水的问题,运用地质雷达和钻孔窥视的方法对巷道围岩裂隙损伤进行探测,查明了平硐围岩的损伤及井壁渗漏水的原因。根据围岩损伤探测结果,针对性地制定深、浅孔组合的注浆堵水治理技术方案,并对现场出水段井筒实施了空腔充填、裂缝封堵、结构补强相结合的注浆治理。利用地质雷达对注浆效果进行检测,检测结果显示,轻微裂隙、中等裂隙、严重裂隙、一般富水、空洞、严重富水的注浆堵水修复率分别为52%、33%、73%、77%、100%、100%,平硐井壁的渗水灾害得到了明显的控制。何家塔煤矿辅运平硐的注浆堵水技术对类似地质条件的巷道围岩注浆堵水治理具有一定的借鉴意义。Aiming at the problem of seepage around the surrounding rock in the auxiliary adit of Hejiata coal mine,the method of geological radar and borehole peep was used to detect the crack damage in the surrounding rock of the roadway,and the causes of the surrounding rock damage and wall seepage in adit were obtained.According to the damage detection results of surrounding rock,the grouting water plugging technology combining deep hole and shallow hole was formulated.Three grouting technologies of cavity filling,fracture sealing and structural reinforcement were implemented in the wellbore of the water outlet section.After field application,the grouting effect was retested by GPR.The retest results showed that the repair rates of minor cracks,medium cracks,serious cracks,general water-rich cracks,cavities and severe water-rich grouting were52%,33%,73%,77%,100% and 100%,respectively.The water seepage disaster in the adit was obviously controlled.The grouting water plugging technology in the auxiliary adit of Hejiata coal mine has a certain guiding significance for the surrounding rock with similar geological conditions.

关 键 词：辅运平硐 地质雷达 围岩渗水 注浆堵水 

分 类 号：TD742[矿业工程—矿井通风与安全]