摘要
为合理解放大平煤矿地表水体下压覆煤炭资源,采用现场实测和数值模拟方法相结合确定了厚煤层综放开采导水裂缝带发育规律,为水体下采煤提供了科学依据。计算了河床下开采所需防水安全煤岩柱尺寸,对比煤层开采条件确定了河下工作面开采上限标高。通过采取完善的水害防治措施,大平煤矿实现了水体下厚煤层综放开采,具有很好的技术经济效益,有效地解放了矿井水体下压覆煤炭资源。
In order to liberate reasonably the overlying coal resources under the surface water body in Daping Coal Mine,the numerical simulation method combining with on-site measurement was used to determine the development law of the water-conducting fracture zone in comprehensive mining of thick coal seams,which provided the scientific basis for the coal mining under water body.Size of the waterproof safe coal rock pillar required for mining under the river bed was calculated,and the upper limit of the mining elevation of the working face under the river was determined by comparing the mining conditions of the coal seam.Comprehensive mining of thick coal seams under water body was realized by adopting comprehensive water hazard prevention and control measures in Daping Coal Mine,which had the good technical and economic benefit and liberated effectively coal resources under the mine water body.
作者
连跃东
Lian Yuedong(Shanxi Daping Colliery,Changzhi 046200,China)
出处
《矿山测量》
2021年第3期37-39,44,共4页
Mine Surveying
关键词
厚煤层
综放开采
导水裂缝带
水体下采煤
thick coal seam
comprehensive mining
water-conducting fracture zone
coal mining under water body
作者简介
连跃东(1980-),男,山西襄垣人,地测副总,现从事地质防治水工作。
