动压影响软煤巷道底板注浆加固技术研究  

Study on Grouting Reinforcement Technology of Soft Coal Roadway Floor under Dynamic Pressure

作　　者：王剑锋 Wang Jianfeng(Hongsheng Construction Engineering Co.,Ltd.,Jincheng Shanxi 048006)

机构地区：[1]山西晋煤集团宏盛建筑工程有限公司,山西晋城048006

出　　处：《机械管理开发》2020年第8期157-158,180,共3页Mechanical Management and Development

摘　　要：针对坪上煤业动压影响巷道顶底板变形大、扩帮返修效果不理想等问题,提出了采用联邦加固材料对两帮和底板进行注浆加固,并对现场注浆后围岩变化情况进行了实时观测。观测结果表明:151101巷底板注浆加固后,左右两帮最大移近量为84 mm,巷道底板最大底鼓量为158 mm,两帮和底板变化均在设计允许范围之内,说明注浆加固有效控制了巷道底鼓。Aiming at the problems of large deformation of roof and floor of roadway affected by dynamic pressure in pingshang coal industry,the authors put forward the use of federal reinforcement material to reinforce two sides and floor slab by grouting,and makes real-time observation on the change of surrounding rock after grouting on site.The results show that:after grouting reinforcement of 151101 roadway floor,the maximum displacement of left and right two sides is 84 mm,the maximum floor bulging of roadway floor is 158 mm,and the change of two sides and floor is within the allowable range of design,which indicates that grouting reinforcement effectively controls the roadway floor drum.

关 键 词：动压影响 注浆加固 围岩特性 

分 类 号：TD322.1[矿业工程—矿井建设]