深井高应力巷道围岩变形特征及控制对策研究

Study on Deformation Characteristics and Control Countermeasures of Surrounding Rock in Deep Mine High Stress Roadway

随着矿井采掘深度的不断延伸,其开采条件不断恶化,高地应力,高承压水,各种复杂地质构造等因素,导致巷道围岩变形严重,巷道支护困难。在分析了巷道支护的设计原则,并提出了应结合实际地质条件来合理设计巷道支护的策略,通过进一步了解不同锚固方式以及顶板角下围岩应力场分布情况,从实际出发选用最佳的巷道围岩变形控制技术,能有效控制巷道围岩变形,更好地保障了矿井安全生产。

With the continuous extension of the mining depth of the mine,the mining conditions are deteriorating.The factors such as high ground stress,high confined water and various complex geological structures lead to the serious deformation of the surrounding rock of the roadway and the difficulty of roadway support.After analyzing the design principles of roadway support,this paper puts forward the strategy of reasonably designing roadway support in combination with the actual geological conditions.By further understanding the different anchorage methods and the distribution of surrounding rock stress field under the roof angle,and selecting the best roadway surrounding rock deformation control technology from reality,the roadway surrounding rock deformation can be effectively controlled and the mine safety production can be better guaranteed.