摘要
针对岳城煤矿底抽巷支护结构失效、顶板离层严重等问题,提出了针对泥岩复合顶板条件的锚网索喷支护方案。现场应用结果表明:采用优化支护方案后顶底板、两帮围岩变形情况明显降低并趋于稳定,该方案能够明显提高围岩变形的控制能力。
Aiming at the problems of support structure failure and roof separation in Yuecheng Coal Mine,the support scheme of bolt mesh cable shotcreting for mudstone composite roof condition is proposed.The field results show that the deformation of roof,floor and two sides of surrounding rock is significantly reduced and tends to be stable after adopting the optimized support scheme,which indicates that the optimized support scheme can significantly improve the control ability of surrounding rock deformation.
作者
史海鹏
Shi Haipeng(Hongsheng Company of Shanxi Jin Coal Group,Shanxi Jincheng 048006)
出处
《山东煤炭科技》
2021年第2期1-3,共3页
Shandong Coal Science and Technology
关键词
复合
泥岩
设计
优化
composite
mudstone
design
optimization
