蔚州煤田中-下侏罗统下组煤底板带压开采可行性研究  

Feasibility of Mining Lower Coal-seam with Floor Water-pressure at Middle-down Jurassic Period in Weizhou Coalfield

作　　者：崔祥琨[1] 侯玉德 张琪[1] 

机构地区：[1]中国矿业大学资源与地球科学学院,江苏徐州221008 [2]开滦(集团)蔚州矿业有限责任公司单侯矿,河北蔚州075700

出　　处：《煤矿开采》2011年第4期48-51,共4页Coal Mining Technology

基　　金：国家重点基础研究发展计划(973)资助项目(2007CB209400)

摘　　要：以蔚州煤田单侯矿为例,分析下奥陶统富水特征和下组煤底板带压规律,研究下奥陶统顶部隔水关键层存在条件和厚度,计算下组底板采动破坏带深度和有效隔水层厚度,预测下组煤底板下奥陶统突水危险性,评价下组煤带压开采可行性。研究表明:蔚州煤田单侯矿下奥陶统顶部存在约25m厚隔水关键层,隔水关键层使大面积受水压威胁下组煤得以解放。Taking Danhou Colliery as an example,this paper analyzed hydrological characteristic of Ordovician period and floor water pressure rule of lower coal-seam.Existence condition of key strata against water in top of Ordovician period and its thickness was researched.It calculated depth of floor damage induced by mining and effective aquiclude thickness,predicted water-burst danger and evaluated feasibility of mining with water pressure.Result showed that about 25m thick aquiclude exist in top of lower Ordovician period and it could provide protection for mining lower coal influenced by water pressure.

关 键 词：下组煤 隔水关键层 带压开采 

分 类 号：TD823.86[矿业工程—煤矿开采]