近距离煤层下部煤巷掘进支护优化分析

Optimization Analysis of Tunneling Support in the Lower Coal Roadway of Close Coal Seams

以近距离煤层下部煤巷掘进支护优化为对象开展探究,结合具体工程实际,在开展巷道围岩特性及上部煤扰动破坏范围分析的基础上,对支护参数的选取和支护方案的设计进行全面的针对性论述,并对优化后的支护技术应用效果作出探究。结果表明,应用效果良好,在确保巷道稳定的同时实现了巷道掘进速度的提升,对矿井的长久发展意义重大。

Taking the optimization of tunneling support in the lower coal roadway of close coal seams as the object of study,combining with the actual engineering,based on the analysis of the characteristics of roadway surrounding rock and the disturbance damage range of upper coal,this paper discussed the selection of support parameters and the design of support scheme comprehensively and pertinently and explored the application effect of optimized support technology.The results showed that the application could not only ensure the stability of the roadway,but also realize the improvement of roadway driving speed,which was of great significance to the long-term development of the mine.