高家堡煤矿煤层顶板注浆加固堵水技术探讨
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摘要
煤层顶板水害是煤矿安全生产隐患之一,对矿井安全生产危害极大。以陕西彬长矿区高家堡煤矿顶板注浆堵水为例,分析了顶板水导水通道,顶板水富集特征,进行了大量注浆试验,最后提出了顶板水治理方案。研究结果表明,采用水平钻孔、水平注浆方法探查的顶板裂隙发育高度已超过210 m,裂隙发育角度达到80°以上;采用充填注浆、间歇式注浆及快速封堵注浆相结合的方式进行封堵,注浆效果较好。研究成果对类似矿区顶板注浆加固技术推广有借鉴价值。
Coal seam roof water hazard is one of the hidden dangers for safe production in coal mines, extremely harmful to mine safe production. Taking the roof grouting and water plugging in Gaojiabao coal mine of Binchang coal Mining area in Shaanxi Province as an example, the water-conducting passage and the characteristics of water enrichment of roof were analyzed, and a large number of grouting tests were carried out. Finally, a plan for roof water control was put forward. The results show that the height of roof cracks detected by horizontal drilling and horizontal grouting has exceeded 210 M. The angle of fracture development is above 80 degrees, and the grouting effect is better by combining filling grouting, intermittent grouting and rapid sealing grouting. The research results can be used for reference in the popularization of roof grouting reinforcement technology in similar mining areas.
Coal seam roof water hazard is one of the hidden dangers for safe production in coal mines, extremely harmful to mine safe production. Taking the roof grouting and water plugging in Gaojiabao coal mine of Binchang coal Mining area in Shaanxi Province as an example, the water-conducting passage and the characteristics of water enrichment of roof were analyzed, and a large number of grouting tests were carried out. Finally, a plan for roof water control was put forward. The results show that the height of roof cracks detected by horizontal drilling and horizontal grouting has exceeded 210 M. The angle of fracture development is above 80 degrees, and the grouting effect is better by combining filling grouting, intermittent grouting and rapid sealing grouting. The research results can be used for reference in the popularization of roof grouting reinforcement technology in similar mining areas.
引文
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[13]李长青，方俊，李泉新，等.煤层底板超前注浆加固定向孔注浆工艺技术[J].煤田地质与勘探，2014,42(4:59–63.LI Changqing,FANG Jun,LI Quanxin,et al. Technology of directional hole grouting for advanced grouting reinforcement of coal seam floor[J]. Coal Geology&Exploration,2014,42(4):59–63.
[14]谢志钢，刘启蒙，柴辉婵，等.煤层底板隐伏陷落柱突水预测及采前注浆加固评价[J].中国安全生产科学技术，2019,15(5):105–110.XIE Zhigang,LIU Qimeng,CHAI Huichan,et al. Water inrush prediction and pre–mining grouting reinforcement evaluation of hidden subsidence pillars in coal seam floor[J].China Safety Production Science and Technology,2019,15(5):105–110.
[15]李志鹏，张连震，张庆松，等.砂层渗透注浆加固效果模型试验研究[J].煤炭学报，2018,43(12):3488–3497.LI Zhipeng,ZHANG Lianzhen,ZHANG Qingsong,et al.Model test of sand seepage grouting reinforcement effect[J].Journal of China Coal Society,2018,43(12):3488–3497.
[16]王晓蕾，秦启荣，熊祖强，等.深部巷道破碎围岩注浆加固效果综合评价[J].地下空间与工程学报，2019,15(2):576–582.WANG Xiaolei,QIN Qirong,XIONG Zuqiang,et al. Comprehensive evaluation of grouting reinforcement effect of broken surrounding rock in deep roadway[J]. Journal of Underground Space and Engineering,2019,15(2):576–582.
[2]许延春，杨扬.回采工作面底板注浆加固防治水技术新进展[J].煤炭科学技术，2014,42(1):91–101.XU Yanchun,YANG Yang. New progress of floor grouting reinforcement and water control technology in mining face[J]. Coal Science and Technology,2014,42(1):91–101.
[3]姚克，田宏亮，姚宁平，等.煤矿井下钻探装备技术现状及展望[J].煤田地质与勘探，2019,47(1):1–5.YAO Ke,TIAN Hongliang,YAO Ningping,et al. Present situation and prospect of drilling equipment technology in coal mine[J]. Coal Geology&Exploration,2019,47(1):1–5.
[4]周盛全.煤系岩溶含水层注浆改造参数优化与效果评价[D].淮南：安徽理工大学，2015.
[5]葛信立，翟加文，乐志军.朝川矿工作面底板注浆加固及突水危险性评价[J].能源技术与管理，2012(4):77–79.GE Xinli,ZHAI Jiawen,LE Zhijun. Floor grouting reinforcement and water inrush risk assessment of Chaochuan mining face[J]. Energy Technology and Management,2012(4):77–79.
[6]马彦康.五沟煤矿1033综采工作面采前防治水安全性评价[D].合肥：安徽建筑大学，2016.
[7]黄辅强，孙国忠.平朔井工一矿导水陷落柱注浆加固治理技术[J].煤炭工程，2018. 50(4):51–54.HUANG Fuqiang,SUN Guozhong. Grouting reinforcing treatment technology of water diversion subsidence column in Pingshuo Mine No. 1[J]. Coal Engineering,2018,50(4):51–54.
[8]于绍波，李昭水，姜化举，等.采煤工作面内隐伏陷落柱的综合探测与治理技术[J].矿业安全与环保，2017,44(1):91–93.YU Shaobo,LI Zhaoshui,JIANG Huaju,et al. Comprehensive detection and treatment technology of hidden subsidence pillars in coal mining face[J]. Mining Safety&Environmental Protection,2017,44(1):91–93.
[9]李超峰，虎维岳，王云宏，等.煤层顶板导水裂缝带高度综合探查技术[J].煤田地质与勘探，2018,46(1):101–107.LI Chaofeng,HU Weiyue,WANG Yunhong,et al. Comprehensive detection technique for coal seam roof water flowing fractured zone height[J]. Coal Geology&Exploration,2018,46(1):101–107.
[10]尹尚先，徐斌，刘德民，等.我国华北煤田岩溶陷落柱预测研究[J].煤炭科学技术，2016,44(1):172–177.YIN Shangxian,XU Bin,LIU Demin,et al. Prediction of karst collapse column in North China coalfield[J]. Coal Science and Technology,2016,44(1):172–177.
[11]武文清，李冲.隐伏陷落柱探查与治理技术研究与应用[J].煤炭与化工，2016,39(12):31–34.WU Wenqing,LI Chong. Research and application of detection and treatment technology for hidden subsidence column[J]. Coal and Chemical Industry,2016,39(12):31–34.
[12]张文忠.陷落柱突水三维大型模拟实验系统研制及应用[J].中国矿业大学学报，2016,45(1):56–61.ZHANG Wenzhong. Development and application of three–dimensional large–scale simulation experiment system for water inrush from collapse column[J]. Journal of China University of Mining and Technology,2016, 45(1):56–61.
[13]李长青，方俊，李泉新，等.煤层底板超前注浆加固定向孔注浆工艺技术[J].煤田地质与勘探，2014,42(4:59–63.LI Changqing,FANG Jun,LI Quanxin,et al. Technology of directional hole grouting for advanced grouting reinforcement of coal seam floor[J]. Coal Geology&Exploration,2014,42(4):59–63.
[14]谢志钢，刘启蒙，柴辉婵，等.煤层底板隐伏陷落柱突水预测及采前注浆加固评价[J].中国安全生产科学技术，2019,15(5):105–110.XIE Zhigang,LIU Qimeng,CHAI Huichan,et al. Water inrush prediction and pre–mining grouting reinforcement evaluation of hidden subsidence pillars in coal seam floor[J].China Safety Production Science and Technology,2019,15(5):105–110.
[15]李志鹏，张连震，张庆松，等.砂层渗透注浆加固效果模型试验研究[J].煤炭学报，2018,43(12):3488–3497.LI Zhipeng,ZHANG Lianzhen,ZHANG Qingsong,et al.Model test of sand seepage grouting reinforcement effect[J].Journal of China Coal Society,2018,43(12):3488–3497.
[16]王晓蕾，秦启荣，熊祖强，等.深部巷道破碎围岩注浆加固效果综合评价[J].地下空间与工程学报，2019,15(2):576–582.WANG Xiaolei,QIN Qirong,XIONG Zuqiang,et al. Comprehensive evaluation of grouting reinforcement effect of broken surrounding rock in deep roadway[J]. Journal of Underground Space and Engineering,2019,15(2):576–582.