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作 者:王博 Wang Bo(Yuxing Coal Industry Co.,Ltd.of Shanxi Coal Transportation and Marketing Group,Jincheng 048000,China)
机构地区:[1]山西煤炭运销集团裕兴煤业有限公司,山西晋城048000
出 处:《煤炭与化工》2022年第11期5-8,12,共5页Coal and Chemical Industry
摘 要:为保证裕兴煤矿15号煤层的安全回采,准确探测出采煤工作面回采结束后上覆岩层“两带”高度范围,以留设相应的防水安全煤岩柱,采用3DEC数值模拟、双端堵水测漏装置观测和钻孔成像轨迹仪观测等方法,对裕兴煤矿15205工作面“两带”发育高度进行研究,确定了导水裂缝带高度为54.45 m,为裕兴煤矿类似地质采矿条件下地表水体及含水层下工作面开采时提供参考依据。In order to ensure the safe mining of No.15 Coal Seam in Yuxing Mine and accurately detect the height range of the’two zones’of the overlying strata after the mining to set up the corresponding waterproof and safe coal and rock pillars,the development height of the’two zones’of No.15205 Face in Yuxing Mine was studied by means of 3DEC numerical simulation,double-end water plugging and leakage measuring device observation and borehole imaging trajectory instrument observation.The height of the water-conducting fracture zone was determined to be 54.45 m,which provided a reference for the mining of surface water and working face under aquifer under similar geological mining conditions in Yuxing Mine.
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