汪洋煤矿水下采煤防水煤岩柱留设及数值模拟研究  

Study on Numerical Simulation and Thickness Design of Waterproof Coal Block Underwater Mining in Wangyang Coal Mine

作　　者：王冲[1] 李友红[1] 

机构地区：[1]四川省煤田地质工程勘察设计研究院,成都610072

出　　处：《煤炭技术》2016年第8期66-68,共3页Coal Technology

摘　　要：基于岩层变形破坏理论,计算得到汪洋煤矿水下采煤K_7煤层的煤岩柱厚度;结合水文地质条件,分析得到开采K_7煤层后形成的导水裂缝带不会波及到地表水体,不会导致越溪河水直接充入矿井而引发涌水事故。采用FLAC数值模拟方法对K_7煤层水下开采引起的回风巷道变形进行了预测。Based on the rock deformation and failure theory,K7 coal block thickness was obtained by calculating. Combined with the hydrogeologieal conditions, it was knew that the water suture zone induced by K7 coalbed mining couldn＇t extend to groundwater. So the Yuexi river couldn＇t cause water gushing occurring. With the FLAC numerical simulation, the deformation of ventilation roadway was predicted.

关 键 词：水下采煤 煤岩柱 导水裂缝带 数值模拟 

分 类 号：TD823.5[矿业工程—煤矿开采]