山东煤炭科技2024，Vol.42Issue(12)：15-19,5.DOI:10.3969/j.issn.1005-2801.2024.12.004
过断层巷道顶板不对称破坏原理和控制技术研究
Research on the Principle and Control Technology of Roof Asymmetric Failure in Crossing Fault Roadway
赫祥林 1魏威龙 2杜冕1
作者信息
- 1. 阿克苏地区博安煤矿安全技术服务中心,新疆 阿克苏 843000
- 2. 玛纳斯县天欣煤业有限公司,新疆 昌吉 832200
- 折叠
摘要
Abstract
In order to solve the problem of asymmetric failure existing in the roof of downhole long distance crossing fault roadways in Tianxin Coal Mine,which affects the safety of operations,the A802 hole cutting project is taken as the research object.The failure characteristics of the roadway roof are analyzed using dot matrix image analysis technology,and the failure characteristics of the roof are determined;The failure principle of the long distance crossing fault roadway roof is simulated and analyzed using UDEC numerical simulation analysis method,and a targeted optimization scheme of"asymmetric support control+alternating deep and shallow grouting+strengthening comprehensive support"is proposed.According to practical applications,the crossing fault roadway roof exhibits significant asymmetric deformation and failure;During the construction process,the shallow layer area of the surrounding rock first experiences tensile failure,and the cracks gradually expand to the roof and gradually expand with the increase of operation time,ultimately leading to asymmetric failure occurs in the roof;After optimizing the new control scheme,the deformation amount of the roof can be significantly reduced,ensuring the smooth implementation of the A802 hole cutting project.关键词
过断层巷道/点阵图像分析/UDEC数值模拟/不对称变形/加强支护Key words
crossing fault roadway/dot matrix image analysis/UDEC numerical simulation/asymmetric deformation/strengthen support分类
矿业与冶金引用本文复制引用
赫祥林,魏威龙,杜冕..过断层巷道顶板不对称破坏原理和控制技术研究[J].山东煤炭科技,2024,42(12):15-19,5.
