野川煤矿3103回风巷口顶板淋水成因分析  

Analysis of causes of water leaching in roof of 3103 return airway slot in Yechuan Coal Mine

作　　者：陈江峰[1] 卢科萌 冯新庆 宋常胜[3] 王伸[3] Chen Jiangeng;Lu Kemeng;Feng Xinqing;Song Changsheng;Wang Shen(School of Resources and Environment,Henan Polytechnic University,Jiaozuo 454000,China;Shanxi Coal Transportation and Marketing Group Yechuan Coal Industry Co..Ltd..Changzhi 046000,China;School of Energy Science and Engineering,Henan Polytechnic University,Jaozuo 454000,China)

机构地区：[1]河南理工大学资源环境学院,河南焦作454000 [2]山西煤炭运销集团野川煤业有限公司,山西长治046000 [3]河南理工大学能源科学与工程学院,河南焦作454000

出　　处：《能源与环保》2020年第4期6-9,共4页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：国家自然科学基金资助项目(51774110)。

摘　　要：为解决野川煤矿一采区3103回风巷口顶板淋水问题,对顶板充水条件进行分析,查明了顶板淋水来源于相邻矿井老空区积水的横向补给;运用ABAQUS对综放开采条件下的受力及变形破坏进行数值模拟,表明矿界煤柱存在塑性破坏区,但依然保存有弹性区;电法和微地震探查表明,煤柱宽度为17~20 m,存在失稳可能性;后采用钻探证实,两矿界煤柱宽度≥60 m,安全评估认为不存在失稳可能性,不会发生相邻矿井采空区积水导致的突水问题,后经开采验证,评估结论可靠。In order to solve the problem of water leaching on the roof of the 3103 return airway slot in the No.1 mining area of Yechuan Coal Mine,the water filling conditions of the roof of the mining area were analyzed,and the horizontal water supply of the roof was found to be derived from lateral recharge of the old gob area of the adjacent coal mine.The numerical simulation of the stress and deformation failure,under the condition of fully-mechanized caving mining,using ABAQUS software shows that there is plastic damage zone in the coal pillar of the mine,but the elastic zone is still preserved.The electric and microseismic exploration showed that the coal pillar width is 17~20 m,and there is instability.After drilling,it is confirmed that the coal pillar width of the two mines is greater than or equal to 60 m.The safety assessment considers that there is no possibility of instability,and there will be no water inrush problem caused by the adjacent coal goaf.After mining verification,the evaluation conclusion is reliable.

关 键 词：充水条件 数值模拟 物探探查 钻探验证 安全评估 

分 类 号：TD745[矿业工程—矿井通风与安全]