| 松散承压含水层下采煤突水机理与防治研究 |
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| 引用本文： | 许家林,朱卫兵,王晓振.松散承压含水层下采煤突水机理与防治研究[J].采矿与安全工程学报,2011,28(3):333-339. |
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| 作者姓名： | 许家林 朱卫兵 王晓振 |
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| 作者单位： | 中国矿业大学煤炭资源与安全开采国家重点实验室,矿业工程学院,江苏徐州221008 |
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| 基金项目： | 国家重点基础研究发展计划(973)项目(2007CB209403); 国家自然科学基金项目(50974116); 江苏高校优势学科建设工程项目 |
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| 摘 要： | 针对祁东煤矿多起采煤工作面突水灾害问题,采用现场测试和模拟实验方法,对松散承压含水层下采煤顶板导水裂隙发育特征与突水机理、突水危险区域预测与突水灾害防治对策等进行了深入研究.结果表明:祁东煤矿采煤工作面每次突水前都伴随有压架现象,说明工作面突水灾害的发生与覆岩破断运动紧密相关.由于松散承压含水层的载荷传递作用,易导致覆岩关键层产生复合破断,引起松散承压含水层下部较大范围岩层的整体破断,使得顶板导水裂隙发育高度异常增大而沟通含水层,这是引发松散承压含水层下采煤发生异常突水灾害的根本原因.提出了松散承压含水层下采煤突水危险区域的预测方法和突水灾害防治对策,指导了祁东煤矿松散承压含水层下采煤突水灾害的防治实践.
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| 关 键 词： | 松散承压含水层 突水灾害 导水裂隙 关键层 绿色开采 |
Study on Water-Inrush Mechanism and Prevention During Coal Mining Under Unconsolidated Confined Aquifer |
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| XU Jia-lin,ZHU Wei-bing,WANG Xiao-zhen.Study on Water-Inrush Mechanism and Prevention During Coal Mining Under Unconsolidated Confined Aquifer[J].Journal of Mining and Safety Engineering,2011,28(3):333-339. |
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| Authors: | XU Jia-lin ZHU Wei-bing WANG Xiao-zhen |
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| Affiliation: | XU Jia-lin,ZHU Wei-bing,WANG Xiao-zhen(State Key Laboratory of Coal Resources and Safe Mining,School of Mines,China University of Mining & Technology,Xuzhou,Jiangsu 221008,China) |
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| Abstract: | According to the several water inrush disasters in Qidong coal mine,we adopt field measurements and simulation experiments in this paper,to study the development characteristics of water flowing fracture,water inrush mechanism,prediction of water inrush zone,and prevention strategy,et al,while mining under the unconsolidated confined aquifer.The results show that the support crushing accident appeared before each water inrush in Qidong coal mine,which proves that it exist close relationship between water in... |
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| Keywords: | unconsolidated confined aquifer water inrush water flowing fracture key stratum green mining |
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