汾源煤业5-101综放工作面导水裂隙带发育高度研究

Research on the Development Height of Water-conducting Fracture Zone in 5-101 Fully Mechanized Caving Face of Fenyuan Coal Industry

为掌握5-101综放工作面导水裂隙带的发育高度,根据工作面的水文地质情况,通过采用FLAC^(3D)数值软件模拟和分析实测钻孔冲洗液漏失量两种手段,综合判定工作面导水裂隙带的发育高度为166.82~175.40m,未贯通顶板灰岩含水层,工作面回采期间无突水危险性。

In order to grasp the development height of the water-conducting fissure zone in 5-101 fully mechanized caving face, according to the hydrogeological conditions of the working face, the development height of the water-conducting fissure zone in the working face was comprehensively determined to be 166.82-175.40 m by using FLAC^(3D) numerical software to simulate and analyze the leakage of the measured drilling flushing fluid, it does not penetrate the roof limestone aquifer, and there is no risk of water inrush during the mining of the working face.