主焦煤矿防水闸墙设计方案研究  

Design scheme of waterproof gate wall in Main Coking Coal Mine

作　　者：王昕 高保彬[1] 吴洋洋 WANG Xin;GAO Bao-bin;WU Yang-yang(School of Safety Science and Engineering,Henan University of Technology,Jiaozuo 454000,China;Main Coking Coal Industry Co.,Ltd.,Anyang 455000,China)

机构地区：[1]河南理工大学安全科学与工程学院,河南焦作454000 [2]主焦煤业有限责任公司,河南安阳455000

出　　处：《煤炭工程》2021年第11期16-20,共5页Coal Engineering

摘　　要：为了隔绝相邻煤矿积水涌入,结合主焦煤矿原防水闸墙布置及围岩特征,提出两种防水闸墙加固施工方案,并运用数值模拟分析了两方案防水闸墙应力分布以及位移变形,从以往工程、施工安全性和成本控制等多角度对施工方案进行优选,确定采用在原闸墙基础上加固施工新闸墙并与原闸墙形成新整体的方案。提出了加固施工的施工关键点及施工工艺,避免了拆除原闸墙所带来的费用以及围岩破坏的问题。现场应用实践表明,防水闸墙的加固效果明显,有效隔绝了相邻矿井老空水涌入,为相似条件下的防水闸墙加固施工提供了参考。In order to block the influx of water from adjacent coal mines, combining with the original waterproof gate wall layout and surrounding rock characteristics of the Main Coking Coal Mine, two reinforcement construction schemes for waterproof gate wall are proposed, and the stress distribution and displacement deformation of the two schemes are analyzed by numerical simulation. The construction schemes are compared from the perspectives of history, construction safety, and cost control, and finally it’s determined to adopt the scheme of building a new gate wall which is reinforced and combined with the original gate wall as a whole. The key points and construction techniques for reinforcement construction are put forward, which avoids the cost of demolishing the original gate wall and the problems of surrounding rock damage. Field application shows that the reinforcement effect of the waterproof gate wall is prominent, as the influx of old goaf water from adjacent mines is effectively blocked.

关 键 词：防水闸墙 水害防治 围岩注浆 数值模拟 

分 类 号：TD822[矿业工程—煤矿开采]