新登煤矿综放开采导水裂隙带发育高度研究  

Study on Development Height of Water Flowing Fractured Zone in Fully Mechanized Top Coal Caving Mining of Xindeng Coal Mine

作　　者：范志杰 赵忠明[1] 袁瑞甫[1] 吴俊杰 FAN ZhijieZHAO Zhongming;YUAN Ruifu;WU Junjie(School of Energy Science and Engineering,Henan Polytechnic University,Jiaozuo 454000,China)

机构地区：[1]河南理工大学能源科学与工程学院,河南焦作454000

出　　处：《煤炭技术》2022年第1期152-154,共3页Coal Technology

摘　　要：煤层开采后导水裂隙带发育高度至顶板含水层和底板承压含水层,会使覆岩中的水通过导水裂隙带进入工作面,给煤矿安全生产带来重大隐患。为获得新登煤矿煤层开采后导水裂隙带的发育高度,在该矿31101工作面进行了实测研究。首先通过对井下施工的4个钻孔的钻孔漏失量,大致推导出工作面开采后的导水裂隙带高度;然后利用电视成像仪观测孔壁的裂隙,判断导水裂隙带高度;最后通过物理相似模拟实验,分析导水裂隙带发育规律。得出新登煤矿31101工作面的顶板导水裂隙带高度45.7~46.7 m;底板导水裂隙带高度5.6 m。After coal seam mining,the development height of water flowing fractured zone reaches the roof aquifer and the floor confined aquifer,which will make the water in the overburden enter the working face through the water flowing fractured zone and bring great hidden danger to the safety production of coal mine.In order to obtain the development height of water flowing fractured zone after coal mining in Xindeng coal mine,field measurement and research were carried out in 31101 working face of the mine.Firstly,the height of water flowing fracture zone after mining is roughly deduced through the leakage of four boreholes in underground construction;then the height of water flowing fracture zone is judged by observing the fracture of hole wall with TV imager;finally,the development law of water flowing fracture zone is analyzed through physical similarity simulation experiment.The results show that the height of roof water flowing fractured zone of Xindeng coal mine 31101 working face is 45.7 to 46.7 m,and that of floor water flowing fractured zone is 5.6 m.

关 键 词：导水裂隙带 钻孔漏失量 钻孔电视成像技术 物理相似模拟 

分 类 号：TD325[矿业工程—矿井建设] TD745