煤_1上行开采导水裂缝带观测研究
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摘要
通过采用井下仰孔分段注水技术、两端封堵测漏装置探测覆岩导水裂隙带高度,取得辛置煤矿煤1开采覆岩导水裂隙带观测成果,掌握导水裂隙带高度、侧方边界向采空区外凸距离、冒落裂隙带在工作面倾向方向上的形状以及最大裂高形成、稳定、回缩的时间,有效地指导煤1回采工作面矿井水预测、防治工作。
Through the use of subsection water injection technology of underground inverted hole and two-end plugging and leak detection device to detect the height of overlying strata water-conducting fracture zone, the observation results of overlying strata water-conducting fracture zone in coal mining No.1 of Xinzhi Coal Mine are obtained, and the height of water-conducting fracture zone, the convex distance of lateral boundary to goaf, the shape of caving fracture zone in the inclination direction of working face and the most. The time of formation, stabilization and shrinkage of large fissure height can effectively guide the prediction and prevention of mine water in coal mining face No. 1.
Through the use of subsection water injection technology of underground inverted hole and two-end plugging and leak detection device to detect the height of overlying strata water-conducting fracture zone, the observation results of overlying strata water-conducting fracture zone in coal mining No.1 of Xinzhi Coal Mine are obtained, and the height of water-conducting fracture zone, the convex distance of lateral boundary to goaf, the shape of caving fracture zone in the inclination direction of working face and the most. The time of formation, stabilization and shrinkage of large fissure height can effectively guide the prediction and prevention of mine water in coal mining face No. 1.
引文
[1]魏久传,吴复柱,谢道雷,等.半胶结中低强度围岩导水裂缝带发育特征[J].煤炭学报,2016,41(04):974-983.
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[3]杨建立,滕永海.综采放顶煤导水裂缝带发育规律分析[J].煤炭科学技术,2009,37(12):100-102.
[4]于静荣,薛梅.梁家煤矿煤4开采冒落裂缝带观测研究[C]//2008年山东省煤矿防治水技术研讨会论文集.2008:102-104.
[2]范志胜,程敏.应用井下仰孔分段注水观测导水断裂带高度[J].矿业安全与环保,2010,37(06):75-77.
[3]杨建立,滕永海.综采放顶煤导水裂缝带发育规律分析[J].煤炭科学技术,2009,37(12):100-102.
[4]于静荣,薛梅.梁家煤矿煤4开采冒落裂缝带观测研究[C]//2008年山东省煤矿防治水技术研讨会论文集.2008:102-104.