矿井导水裂隙带发育高度确定及防治水技术探析

Determination of Development Height of Water Conducting Fracture Zones in Mines and Exploration of Water Prevention and Control Technology

为解决综采工作面回采期间近距离含水层涌水的问题,以塔山矿8111工作面为研究对象,通过FLAC^(3D)数值模拟分析计算、钻孔冲洗液漏失量实测两种手段确定了导水裂隙带的最大发育高度在98.7~102 m之间,在工作面回采期间,将会导通上覆石炭-二叠系砂岩含水层。提出设置水文监测预警系统,对采掘工作面水害、采空区水害及地面水位进行监测,通过地表及大气降水防治水技术、采掘工作面防治水技术进行矿井水患综合治理,旨在提高矿井治理水患的能力,为工作面安全、高效回采提供技术保障。

To solve the problem of water inrush in the close aquifer during the recovery of the comprehensive mining face,taking the 8111 working face of Tashan Mine as the research object,the maximum development height of the water-conducting fracture zone is determined to be 98.7 to 102 m through FLAC^(3D) numerical simulation analysis and calculation and actual measurement of the leakage beam of drilling flushing fluid.Water hazards in mining faces,goaf and ground water levels are monitored,and the comprehensive treatment of mine water hazards is carried out through surface and atmospheric precipitation prevention and control technology and mining face water prevention and control technology,aiming to improve the ability of mines to control water hazards and provide certain technical guarantees for safe and efficient mining of working faces.