松散层底部含水层富水性评价  

Evaluation of Water Abundance of Loose Bed Bottom Aquifer

作　　者：邵亚红[1] 姚多喜[1] 鲁海峰[1] 王康[1] 

机构地区：[1]安徽理工大学地球与环境学院,安徽淮南232001

出　　处：《煤矿安全》2014年第7期127-130,共4页Safety in Coal Mines

基　　金：国家自然科学基金资助项目(51174256)

摘　　要：为实现松散含水层下煤层的安全开采,基于青东矿13采区松散层底部含水层——第四含水层的水文地质条件和工程地质条件,探讨了青东矿13采区第四含水层的厚度分布特征、水质情况、渗透系数(K)及贮水系数(u*)的特征,分析了第四含水层的富水性情况,在此基础上给出了采区松散含水层下开采煤岩柱的留设类型。结果表明:青东矿13采区第四含水层为弱富水性含水层,依据《建筑物、水体、铁路及主要井巷煤柱留设与开采规程》,要求留设的安全煤岩柱类型为防砂安全煤岩柱。In order to achieve safety mining under the loose aquifer, based on the hydrogeology condition and engineering geological condition of bottom aquifer of unconsolidated formation （ fourthly aquifer） in No. 13 mining area of Qingdong Mine, it discusses the distribution characteristics of thickness, water quality condition, coefficient of permeability （ K）, and water storage coefficient （ u ＊ ） of Qingdong Mine No. 13 mining area and researches the water abundance condition of the fourth aquifer. The results show that Qingdong Mine No. 13 mining area is a weak water abundance aquifer and the required safety coal pillar type should be sand proof safety pillar according to Buildings, Water, Railway and Main Roadway of Coal Pillars and Mining Regulations.

关 键 词：四含 富水性 煤岩柱 渗透系数 贮水系数 水质分析 

分 类 号：TD741[矿业工程—矿井通风与安全]