煤矿水体下安全开采可行性分析  

Feasibility Analysis of Coal Mine Safety Mining Under Water Body

作　　者：姜敏[1] 栾元重[1] 任耀[2] 班训广 刘阳[1] 

机构地区：[1]山东科技大学测绘科学与工程学院,山东青岛266510 [2]河南理工大学能源科学与工程学院,河南焦作454000 [3]山东省微山湖矿业集团欢城煤矿,山东济宁272000

出　　处：《煤矿安全》2012年第10期188-191,共4页Safety in Coal Mines

基　　金：山东省自然科学基金资助项目(ZR2009EM002);山东科技大学研究生创新基金资助项目(YCA110311)

摘　　要：针对山东某煤矿地表塌陷积水坑下开采3#煤问题,分析了煤矿开采引起的地表塌陷量;采用"双端堵水器"技术,实测了3#煤开采"两带"发育高度,与经验公式预计、UDEC模拟值比较,确定导水裂隙带高度为47.75 m,3#煤开采安全防水煤岩柱高度为70 m;并利用FLAC软件,模拟了不同落差的断层在不同煤柱宽度时受水威协程度。结果表明,该煤矿可以在积水区下进行安全开采。Aiming at the problem of mining No.3 coal under plash caused by surface subsidence of a coal mine in Shandong,the paper analyzes the amount of surface subsidence caused by coal mining.The development height of ＂two belts＂ in No.3 coal mine is measured by using＂ double end water blocking device＂ technology.Compared with the theoretical values and UDEC simulation values,the height of water flowing fractured zone is determined as 47.75 m,the safety height of waterproof coal pillar in No.3 coal mine is 70 m.Using FLAC software,the paper simulates the water threat degrees of different gas faults in the remaining different coal pillar widths.The results show that the coal mine can be carried out safety mining under water area.

关 键 词：塌陷坑 裂隙带高度 覆岩破坏 数值模拟 

分 类 号：TD823.83[矿业工程—煤矿开采]