斜沟煤矿8号煤层带压开采隔水层分析与危险性评价  

Analysis and risk assessment of aquifer in pressure mining of No.8 coal seam in Xiegou Mine

作　　者：何国庆 He Guoqing(Xiegou Mine,Shanxi Xishan JinXing Energy Corporation Ltd.,Lvliang 033602,China)

机构地区：[1]山西西山晋兴能源有限责任公司斜沟煤矿,山西吕梁033602

出　　处：《煤炭与化工》2019年第11期53-55,59,共4页Coal and Chemical Industry

摘　　要：为对斜沟煤业8号煤层帶压开采的突水危险性进行评价,对该井田范围内39个钻孔资料数据进行统计分析,得出8号煤层底板至奥灰含水层间的平均隔水层厚度为127.42m,隔水性能较好,并结合地质水文资料对突水危险性进行评价分区。结果表明,根据突水危险性评价分区结果确定煤层大部分属于带压开采突水小概率区,仅有西部局部煤层深埋区为带压开采过渡区,煤层整体的突水危险性较小,结合评价结果制定煤层回采作业时的带压开采技术路线。In order to effectively evaluate the water inrush risk of the No.8 coal seam pressure mining in the mine field,the average aquifer thickness between the coal seam floor and the austria aquifer was obtained through statistical analysis of 39 borehole data in the mine field.It was 127.42 m and had good water-proof performance.It combined geological hydrological data to evaluate the risk of water inrush.The results showed that according to the results of water inrush risk assessment,it was determined that most of the coal seams belonged to the small probability zone of pressure mining and water inrush.Only the deep buried area of the local western coal seam was the transition zone of pressure mining,and the overall water inrush risk of the coal seam was small;Combined with the evaluation results,the technical route of pressure mining during coal seam mining operation was formulated.

关 键 词：带压开采 突水危险性 底板隔水层 

分 类 号：TD74[矿业工程—矿井通风与安全]