摘要
采用多喷层混凝土、高强锚杆、注浆锚杆、钢丝绳有机组合形成的柔性封层,施以稳压注浆高强胶结岩煤体,将周边围岩构建成组合圈体梁,强化围岩整体承载能力,有效抵御复杂地层、碎胀泥化状态下的软岩巷道复杂应力,保证软岩巷道的长期稳定。
The flexible seals formed by multi-shotcrete, high-strength bolt, grouting bolt and wire rope were applied to stabilize grouting high-strength cemented rock coal body, and the surrounding rock is constructed into a composite ring beam to strengthen the overall bearing capacity of surrounding rock and effectively resist the complex stress in soft rock roadway under the condition of complex stratum and fragmentation and mud,which has ensured long-term stability of soft rock roadway.
作者
许强
张兆巍
李志祥
张勇
XU Qiang;ZHANG Zhao-wei;LI Zhi-xiang;ZHANG Yong(Daliu Coal Mine Co.,Ltd.,Huating Coal Industry Group Co., Ltd., Pingliang, Gansu,744201;Huaibei Pingyuan Soft Rock Supporting Engineering Co., Ltd., Huaibei, Anhui,235000)
出处
《煤炭科技》
2019年第4期88-90,共3页
Coal Science & Technology Magazine
关键词
组合圈体梁
稳压胶结
多层次锚杆
碎胀泥化
composite ring girder
stable pressure cementation
multi-level bolt
fragmentation, swelling and mudding
