松软煤层泥岩顶板大断面回采巷道围岩控制技术  

Surrounding Rock Control of Large-section Mining Roadway with Mudstone Roof in Soft Coal Seam

作　　者：王卫卫 WANG Weiwei(Shanxi Changping Coal Co.,Ltd.,Jincheng 048000,China)

机构地区：[1]山西长平煤业有限责任公司

出　　处：《山西煤炭》2019年第3期34-38,共5页Shanxi Coal

摘　　要：针对长平矿五盘区埋深大、构造发育、煤岩体整体差、回采巷道围岩变形控制难度大等问题,结合53022和53023巷地质情况,分析了巷道围岩结构特征和变形原因,通过采用高预应力高强锚杆支护,并在预紧力不达标、巷道变形增大、裂隙发育、构造影响区及时采取注浆加固措施。试验表明:巷道围岩裂隙充填密实,巷道围岩变形得到有效控制。There are problems in Wupan area of Changping Mine,including large buried depth,poor tectonic development and coal-rock mass,and difficult control of surrounding rock deformation.Aiming at these problems,the structural characteristics and deformation causes of the surrounding rock were analyzed based on the geological situation of roadway 53022 and 53023.High-prestressed and high-strength bolt support was adopted,and grouting reinforcement measures were also taken in the areas of substandard pre-load,increased roadway deformation,crack development,and structural influence in time.The test shows that the fissure filling in the surrounding rock are compact and the deformation has been effectively controlled.

关 键 词：松软煤层 泥岩顶板 大断面 回采巷道 

分 类 号：TD82[矿业工程—煤矿开采]