巷道顶板渗淋水多层次注浆治理技术  

Multi-layer grouting treatment technology for water seepage and water drenching of roadway roof

作　　者：惠金卫 马小卫 王言龙 钱自卫[2] HUI Jinwei;MA Xiaowei;WANG Yanlong;QIAN Ziwei(Shanzhai Coal Mine,Huaneng Group Huating Coal Industry Group Co.,Ltd.,Pingliang 744000,China;School of Resources and Earth Sciences,China University of Mining and Technology,Xuzhou 221116,China)

机构地区：[1]华能集团华亭煤业集团有限责任公司山寨煤矿,甘肃平凉744000 [2]中国矿业大学资源与地球科学学院,江苏徐州221116

出　　处：《陕西煤炭》2023年第1期68-71,共4页Shaanxi Coal

基　　金：华能集团总部科技项目(HNKJ21-HF16)。

摘　　要：巷道顶板长期多点渗淋水将恶化巷道运行环境、影响支护强度及巷道运行安全,治理难度较大,对注浆工艺、材料及施工技术要求高。以山寨煤矿井底车场巷道顶板渗淋水治理为例,根据巷道渗淋水的现状及地质条件,设计锚索眼专门注浆封堵、注浆封堵围岩漏水、深孔帷幕注浆及端部深部截流注浆相结合的治理方案。选择普通水泥浆、超细水泥浆与化学浆组合使用,采用单孔单次注浆及二次套孔复注的施工工艺,注浆后治理段水量降低90%以上,且无显见水点,达到预想治理效果,为类似井巷渗漏水害防治提供参考。The long term multi-point water seepage of roadway roof will deteriorate the operating environment of roadway, affect the strength of support and the safety of roadway operation, which is difficult to control and requires high grouting technology, materials and construction technology.Taking the treatment of roof water seepage and water drenching of the roadway in the pit bottom lot of Shanzhai Coal Mine as an example, according to the current situation and geological conditions of the roadway water seepage and water drenching, a treatment scheme combining special grouting and plugging of anchor cable holes, grouting and plugging of surrounding rock leakage, deep hole curtain grouting and end deep closure grouting is designed.Ordinary cement slurry, ultra-fine cement slurry and chemical slurry are used together, and the construction technology of single hole single grouting and secondary hole repeated grouting is adopted.After grouting, the water volume in the treatment section is reduced by more than 90%,and there is no obvious water point, achieving the expected treatment effect, which provides a reference for the prevention and control of similar roadway water leakage.

关 键 词：巷道淋水 顶板渗淋水 围岩注浆 化学浆液 

分 类 号：TD743[矿业工程—矿井通风与安全]