寺河煤矿陷落柱探查与注浆加固一体化技术应用  

Application of Integrated Technology for Exploration and Grouting Reinforcement of Collapsed Columns in Sihe Coal Mine

作　　者：王晓波 WANG Xiaobo(Sihe Coal Mine of Jinneng Holding Equipment Manufacturing Group,Jincheng 048200,China)

机构地区：[1]晋能控股装备制造集团有限公司寺河煤矿,山西晋城048200

出　　处：《煤》2024年第9期11-14,35,共5页Coal

基　　金：国家自然科学基金(51674132)。

摘　　要：为进一步探明寺河煤矿XDL-2陷落柱的形态、范围以及导水情况,采用钻探探查与注浆加固一体化技术对陷落柱区域进行治理,并施工检查验证了治理效果。结果表明:XDL-2陷落柱的形态近似椭圆形,长轴方位184°,长轴195 m,短轴80 m,钻孔施工过程中均未出现漏失点和出水点,经注浆治理后,钻孔的注水压力达到并稳定在2.6 MPa,突水系数为0.0375 MPa/m,验证了陷落柱在3号煤底板以下44 m范围内的柱体岩石不导水,具有很好的隔水作用。In order to further explore the shape,range and water conductivity of the XDL-2 collapse column in Sihe Coal Mine,an integrated technology of drilling exploration and grouting reinforcement was adopted to treat the area of the collapse column,and the treatment effect was verified through construction inspection holes.The results show that the shape of the XDL-2 collapse column is approximately elliptical,with a major axis orientation of 184°,a major axis of 195 m,and a minor axis of 80 m.During the drilling construction process,there were no leakage or water outlet points.After grouting treatment,the water injection pressure of the drilling hole reached and stabilized at 2.6 MPa,and the water inrush coefficient was 0.0375 MPa/m.This verifies that the rock in the column of the collapse column within the range of 44 m below the bottom plate of No.3 coal seam is not conductive to water and has a good water blocking effect.

关 键 词：陷落柱 钻探探查 注浆加固 治理效果 

分 类 号：TD745.2[矿业工程—矿井通风与安全]