煤炭技术

巷道围岩的变形控制是确保矿井生产顺利衔接的关键环节之一。以岳城煤矿MZ01工作面进风顺槽为研究对象，探讨了巷道围岩损坏的主要因素，并提出了巷道设计的优化技术原理，同时，验证了优化后支护参数的效果。研究结果显示：顶板损坏主要表现为整体下沉，其变形最高速率可达120 mm/d，而两帮的最大位移速率可达160 mm/d。巷道变形的根本原因包括断面过大、应力环境复杂以及原先的支护方式不合理。采用全锚索支护后，顶底板的相对位移减小到21 mm，两帮的相对位移减小到41 mm，支护优化的成效显著，为其他矿井的巷道变形控制提供了参考。

The deformation control of tunnel surrounding rock is one of the key links to ensure the smooth connection of mine production. Takes the intake duct of MZ01 working face in Yuecheng coal mine as the research object, explores the main factors of surrounding rock damage in the roadway, proposes optimization technology principles for roadway design, and verifies the effect of optimized support parameters. The research results show that the main manifestation of roof damage is overall subsidence,with a deformation rate of up to 120 mm/d, while the maximum displacement rate of the two sides can reach 160 mm/d. The fundamental reasons for tunnel deformation include excessive cross-section, complex stress environment, and unreasonable original support methods. After adopting full anchor support,the relative displacement of the top and bottom plates was reduced to 21 mm, and the relative displacement of the two sides was reduced to 41 mm. The optimization effect of the support was significant, providing reference for deformation control of other mine tunnels.