东庞矿西庞井地面区域治理底板承压水技术研究  

Technical study on the ground regional treatment of floor confined water in Xipang Well of Dongpang Mine

作　　者：马洪飞 底俊臣 王国牛 牛延汀 李书宾 MA Hongfei;DI Junchen;WANG Guoniu;NIU Yanting;LI Shubin(Xipang Well of Dongpang Mine,Jizhong Energy Company Limited,Xingtai 054000,China)

机构地区：[1]冀中能源有限责任公司东庞矿西庞井,河北邢台054000

出　　处：《建井技术》2024年第6期42-48,共7页Mine Construction Technology

基　　金：邢台市重点研发计划自筹项目(2022ZC064)。

摘　　要：东庞矿西庞井9303工作面底板奥灰承压含水层的原始突水系数为0.094~0.126MPa/m,存在高承压岩溶含水层,严重威胁了工作面的安全生产。采用理论分析的方法,确定了地面区域治理底板承压水改造段的设计深度为12.0~25.0m,改造后的设计隔水层厚度为51.0~64.0m,改造后的突水系数为0.081~0.076MPa/m。通过现场实测,对奥灰底板承压水的治理效果进行了评价。结果表明:实际进入奥灰含水层深度为10.7~24.2m,改造后隔水层厚度为50.8~64.3m;注浆段终压均在6MPa以上,注浆结束时泵量达到35L/min以下,符合注浆结束标准;底板含水层治理后的突水系数为0.073~0.085MPa/m,小于0.100MPa/m,满足工作面安全采掘的要求。The original water inrush coefficient of the floor aquifer of the 9303 working face of Xipang well is 0.094~0.126 MPa/m.The high confined aquifer seriously threatens the safe production of the working face.The method of theoretical analysis is used to determine the design depth of reconstruction section of floor confined water for ground regional treatment is 12.0~25.0 m.The thickness of the renovated waterproof layer is 51.0~64.0 m.The water inrush coefficient after renovation is 0.081~0.076 MPa/m.The treatment effect of floor confined water is evaluated through field measurement.The results show that the actual reconstruction depth of the floor confined water is 10.7~24.2 m.The actual thickness of the renovated waterproof layer is 50.8~64.3 m.The final pressure of the grouting section is above 6 MPa,and the pump volume reaches below 35 L/min at the end of grouting,which meets the grouting standard.The water inrush coefficient after treatment of floor aquifer is 0.073~0.085 MPa/m,less than 0.100 MPa/m,which meets the requirements of safe mining in working face.

关 键 词：煤炭开采 底板承压水 地面区域治理 隔水层厚度 突水系数 

分 类 号：TD745.2[矿业工程—矿井通风与安全]