覆岩采动导水裂隙带发育高度数值模拟与测试分析  

Numerical Simulation and Test Analysis of Development Height of Fractured Zone in Overlying Strata

作　　者：王建宁 刘伟韬 宋文成[1] 

机构地区：[1]山东科技大学矿业与安全工程学院,山东青岛266590 [2]山东科技大学矿山灾害预防控制-省部共建国家重点实验室培育基地,山东青岛266590

出　　处：《煤炭技术》2017年第10期149-151,共3页Coal Technology

摘　　要：针对覆岩采动导水裂隙带高度的确定,以某矿21011工作面为工程背景,首先利用数值模拟软件FLAC^(3D)进行数值模拟,获得的结果较接近现场实测真实情况;选取了多种经验公式对顶板导水裂缝带高度进行了计算,结合"钻孔双端封堵测漏"技术对导水裂隙带发育高度进行现场实测,最后通过3种手段的综合运用,确定覆岩导水裂隙带的发育高度为38.6 m,进一步提高了开采上限,提高了资源回收率,为安全有效开采煤炭资源提供了科学决策依据。According to the engineering background of the 21011 working face of a mine, the numerical simulation software FLAC^3D is used to obtain the results. The results are close to the actual situation of the field. A variety of empirical formulas are selected to analyze the roof and the range of experience is relatively conservative. Combined with the ＂drilling double-ended plugging and leak detection＂ technology. Finally, the development height of the fractured zone is 38.6 m . To further improve the mining limit, improve the recovery rate of resources for the safe and effective mining of coal resources to provide a scientific basis for decision-making.

关 键 词：导水裂隙带高度 FLAC^3D 经验公式 

分 类 号：TD325[矿业工程—矿井建设]