下霍煤矿水体下安全开采可行性研究  

Feasibility study on safe mining under water in Xiahuo Mine

作　　者：孙殿宇 Sun Dianyu(Lu’an Coal Industry Department,Jinneng Holding Coal Industry Group,Changzhi 047500,China)

机构地区：[1]晋能控股煤业集团潞安煤炭事业部,山西长治047500

出　　处：《煤炭与化工》2022年第6期76-79,共4页Coal and Chemical Industry

摘　　要：为研究下霍煤矿回采工作面在地面田良河下安全开采可行性,通过理论计算及现场实测,确定正常地段导水裂隙带发育高度为70 m,在保护层上、基岩风化带下尚有185.8 m岩柱保持其原始渗透性。通过在2306工作面开采实践,工作面充水以顶板裂隙水为主,河流不会通过地表采动裂缝对井下工作面充水产生直接影响,分析论证了田良河下综放开采是安全可行的。In order to study the safe mining feasibility of working face in Xiahuo Mine under Tianliang River on the ground,it was confirmed that the development height of water conduction fracture zone was 70 m in normal section through theoretical calculation and field measurement,and 185.8 m rock pillars remained their original permeability above the protective layer and under the bedrock weathering zone.Through the mining practice in No.2306 face,the water filling of working face was mainly roof fissure water,and the river would not have a direct impact on the water filling of underground working face through ground mining cracks.The analysis demonstrated that the fully mechanized caving mining under Tianliang River was safe and feasible.

关 键 词：水体下开采 导水裂隙带 电阻率测试 

分 类 号：TD74[矿业工程—矿井通风与安全]