东滩煤矿3308综放工作面沿空巷道治理及支护技术研究  

Research on the Treatment Technology of Gob Roadway in 3308 Fully Mechanized Caving Face of Dongtan Coal Mine

作　　者：冯冉 FENG Ran(Dongtan Coal Mine,Yankuang Energy Group Co.,Ltd,Zoucheng,Shandong Province,273500)

机构地区：[1]兖矿能源集团股份有限公司东滩煤矿,山东邹城273500

出　　处：《煤矿现代化》2024年第1期1-4,9,共5页Coal Mine Modernization

摘　　要：东滩煤矿3308综放工作面轨道顺槽为沿采空区掘进巷道,与原3307工作面运输顺槽临近,中间预留煤柱约3.5 m。回采期间,受超前动压及沿空侧向支承压力影响,轨道顺槽围岩变形较大。为解决回采期间轨道顺槽顶板下沉、鼓帮影响支架拉移等问题,采取巷道顶板补打29U锚索梁、帮部补打锚索、钢带等方式增加巷道主动、被动支护强度,控制围岩变形,保证轨道顺槽支架正常拉移空间及人员作业空间,保障了井下生产和作业人员安全。The track groove of the 3308 fully mechanized caving face in Dongtan Coal Mine is a tunnel excavated along the goaf,adjacent to the original 3307 face transportation groove,with a reserved coal pillar of about 3.5m in the middle.During the mining process,the deformation of the surrounding rock along the track is significant due to the influence of advanced dynamic pressure and lateral support pressure along the goaf.In order to solve the problems of the subsidence of the track trough roof and the influence of bulging on the support movement during the mining process,measures such as adding 29U anchor cable beams to the tunnel roof,adding anchor cables to the side,and steel strips are taken to increase the active and passive support strength of the tunnel,control the deformation of the surrounding rock,ensure the normal pulling space and personnel working space of the track trough support,and ensure the safety of underground production and operation personnel.

关 键 词：超前动压 巷道顶板加固 拉移空间 人员安全 

分 类 号：TD353[矿业工程—矿井建设]