浅埋深煤层水体下开采安全性评价与防治水研究  

Research on safety evaluation andwater control ofmining under water body of shallow coal seams

作　　者：侯增平 HOU Zengping(Shaanxi Yanchang Petroleum Hengshan Weiqiang Coal Industry Co.,Ltd.,Yulin 719100,China)

机构地区：[1]陕西延长石油集团横山魏墙煤业有限公司,陕西榆林719100

出　　处：《陕西煤炭》2021年第S02期86-89,共4页Shaanxi Coal

摘　　要：浅埋深煤层水体下安全开采研究至关重要。针对榆横矿区魏墙煤矿浅埋深煤层地表水体下安全开采问题,运用理论计算,分析两带发育高度,并对工作面突水可能性进行分析,提出了工作面井上下防治水措施。结果表明,魏墙煤矿1313工作面垮落带高度在6.5~11.8 m范围内,导水裂隙带发育高度为29.1~42.8 m。该裂隙带发育将穿入侏罗系直罗组含水层内,有可能形成顶板水害问题。1313工作面涌水量推测总体不超过80 m^(3)/h,由此布设的工作面排水设施能够满足防治水安全生产。并实施以有效排水系统为重点、结合水文监测系统建设,以自然疏放为主的防治水对策,开展“两带”高度探查的井下防治水措施。同时开展地表水库水体的提前疏放、加固地表水库坝体、合理布置开采规划等井上防治水措施,共同保证工作面的安全回采。该研究结果为魏墙煤矿水体下安全生产及水资源的保护提供了科学依据。It is very important to study the safety mining of shallow coal seam under water.Aiming at the problem of safe mining under the surface water of shallow coal seam in Weiqiang Coal Mine of Yuheng mining area,the development height of the two zones is calculated theoretically,the possibility of water inrush in the working face is analyzed,and the water prevention measures are put forward.The results show that the height of the collapse zone of 1313 working face in Weiqiang Coal Mine is 6.5~11.8m,and the development height of the water diversion fracture zone is 29.1~42.8m.The water diversion fracture zone will penetrate into the aquifer of Jurassic Zhiluo formation,which may cause roof water disaster.The water inflow of 1313 working face is not more than 80 m^(3)/h,so the drainage facilities can meet the requirements of water safety production.This paper puts forward the water control countermeasures of building effective drainage system and hydrological monitoring system.Water control measures such as"two zones"height exploration shall be taken underground,and water control measures such as early drainage of surface reservoir water body,reinforcement of surface reservoir dam body and reasonable layout of mining planning shall be taken to ensure safe mining of the working face.The research result can provide scientific basis for safety production and water resources protection in Weiqiang Coal Mine.

关 键 词：榆横矿区 浅埋深煤层 地表水体 两带 发育高度 煤层开采 

分 类 号：TD745[矿业工程—矿井通风与安全]