矿井工作面安全开采可行性分析
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摘要
31203工作面位于水体下方,为了对工作面开采的可行性进行确认,结合工况条件,制定了观测方案,对工作面上覆岩层破坏高度进行现场实测。结果表明,31203工作面导水裂隙带实测值为28.58m。根据该矿实际地质条件,三采区31203工作面开采是安全可靠的。
31203 working face is located below water body.In order to confirm the feasibility of working face mining,combined with working conditions,an observation scheme is formulated,and the damage height of overburden strata on the working face is measured in situ.The results show that the measured value of water-conducting fracture zone in 31203 working face is 28.58 m.According to the actual geological conditions of the mine,the mining of 31203 working face in No.3 mining area is safe and reliable.
31203 working face is located below water body.In order to confirm the feasibility of working face mining,combined with working conditions,an observation scheme is formulated,and the damage height of overburden strata on the working face is measured in situ.The results show that the measured value of water-conducting fracture zone in 31203 working face is 28.58 m.According to the actual geological conditions of the mine,the mining of 31203 working face in No.3 mining area is safe and reliable.
引文
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[2]武雄,杨健,段庆伟.煤层开采对岳城水库安全运行的影响[J].水利学报,2014(9):101-104.
[3]杨本水,王从书,阎昌银.中等含水层下留设防砂煤柱开采的试验与研究[J].煤炭学报,2015,27(4):342-346.
[4]钱明高,刘听成.矿山压力及其控制(修订本)[M].北京:煤炭工业出版社,1991.
[5]徐光,许家林.采空区顶板导水裂隙侧向边界预测及应用研究[J].岩土工程学报,2017,32(5):724-730.