摘要
针对成庄煤矿井下过陷落柱区域注浆加固工程实际需求,优化、改进了高性能改性无机双液注浆材料的成分配比,现场应用结果表明,浆液与破碎围岩固结效果良好,无机材料深孔注浆在一定程度上提高了破碎围岩承载能力,防止了漏顶和片帮事故发生。
In response to the actual needs of grouting reinforcement engineering in the area of collapse columns in Chengzhuang Colliery,the paper presents the optimization and improvement of the composition ratio of high-performance modified inorganic double liquid grouting materials,whose on-site application results show that the inorganic material deep hole grouting can improve the bearing capacity of the broken surrounding rock to a certain extent with good consolidation effect of the slurry and broken surrounding rock,preventing the occurrence of roof leakage and rib spalling accidents.
作者
宋朋飞
Song Pengfei(Chengzhuang Colliery,Jinneng Holding Equipment Manufacturing Group,Jincheng,Shanxi 048000)
出处
《江西煤炭科技》
2024年第3期55-57,60,共4页
Jiangxi Coal Science & Technology
关键词
陷落柱
注浆加固
无机注浆材
subsided column
grouting reinforcement
inorganic grouting materials
