金达煤业水力切顶护巷技术应用研究  

Research on Application of Hydraulic Roof Cutting and Roadway Protection Technology in Jinda Coal Industry

作　　者：王涛 Wang Tao(Jinda Coal Industry Co.,Ltd.,Shanxi Coal Transportation and Sales Group,Xiaoyi Shanxi 032300)

机构地区：[1]山西煤炭运销集团金达煤业有限公司,山西孝义032300

出　　处：《晋控科学技术》2023年第6期39-43,共5页Jinneng Holding Science and Technology

摘　　要：山西煤炭运销集团金达煤业10403工作面运输顺槽北邻新二采区三条大巷,工作面回采期间为保护新二采区三条大巷,减小采动影响,在10403工作面运输顺槽采用水力切顶的方式破坏其上部顶板的完整性。通过对上覆9#煤层采空区底板及已回采的9#煤层工作面隔离煤柱进行高压水力切顶,达到了顶部压力向采空区转移的目的[1],有效控制了三条大巷的变形,从而解决了巷道变形、返修等问题。The north side of the transportation roadway in the 10403 working face of Jinda Coal Industry is close to the three main alleys in the new second mining area.During the mining process,in order to protect the three main alleys in the new second mining area and reduce the impact of mining,hydraulic cutting was used to damage the integrity of the upper roof of the transportation roadway in the 10403 working face.By high-pressure hydraulic cutting of the bottom plate of the goaf in the upper 9th coal seam and the isolated coal pillars in the already mined 9th coal seam working face,the purpose of transferring top pressure to the goaf was achieved[1],effectively controlling the deformation of the three main tunnels and solving problems such as tunnel deformation and repair.

关 键 词：采动影响 采空区 水力切顶 

分 类 号：TD322[矿业工程—矿井建设]