严重出水涌砂斜井修复过程研究  

Study on Repairing Process of Auxiliary Slope-shaft with Water and Sand Inrush

作　　者：蔡逢华 官云章[2] 岳宁 庞世界 闫国成 钱自卫[3] CAI Fenghua;GUAN Yunzhang;YUE Ning;PANG Shijie;YAN Guocheng;QIAN Ziwei(Jinjitan Coal Mine,Yankuang Group Shaanxi Future Energy Co.,Ltd.,Yulin 719000,China;Yanzhou Coal Mining Co.,Ltd., Zoucheng 273500,China;State Key Laboratory for Geomechanics and Deep Underground Engineering,China University of Mining and Technology,Xuzhou 221116,China)

机构地区：[1]兖矿集团陕西未来能源有限公司金鸡滩煤矿,陕西榆林719000 [2]兖州煤业股份有限公司,山东邹城273500 [3]中国矿业大学深部岩土力学与地下工程国家重点试验室,江苏徐州221116

出　　处：《煤矿安全》2018年第12期143-146,共4页Safety in Coal Mines

基　　金：国家自然科学基金青年科学基金资助项目(41602299)

摘　　要：主要介绍了金鸡滩煤矿副斜井严重出水涌砂灾害发生的过程及机理,灾害治理的原理、过程及效果。研究发现超大吨位车辆多次循环通行造成底板多处破裂、壁后砂层液化是斜井发生水砂灾害的根本原因。副斜井出水涌砂灾害治理分为2个阶段,抢险阶段采用了"木垛内撑+帮部注浆"的方案,后期加固阶段采用"U型钢棚+壁后砂层注浆加固"的方案。副斜井治理完成后,斜井前后回收及安装2个工作面的整套采煤装备,斜井没有发生出水量增加、底板破裂、出砂等不良现象,实践表明斜井修复效果较好。This paper mainly introduces the process and mechanism of serious water and sand inrush, and the principle, process and effect of disaster management in auxiliary slope-shaft of Jinjitan Coal Mine. The study found that the repeated cycling of large tonnage vehicles resulted in multiple ruptures of the floor, and the liquefaction of the sand behind the wall was the fundamental cause of the water sand disaster in the inclined shaft. The treatment of water and sand inrush in auxiliary slope-shaft is divided into two stages. In the emergency stage, the plan of "wooden buttress inside support + grouting at the side"was adopted. In the later stage of reinforcement, the scheme of"U-shaped steel frame+grouting at the side"is adopted. When all treatment finished, 2 sets of mining equipment were installed and recovered successfully in the inclined system. No increase of water yield, floor fracture and sand production occurred in the inclined shaft.

关 键 词：斜井 底板破裂 出水涌砂 抢险阶段 注浆 

分 类 号：TD745.26[矿业工程—矿井通风与安全]