小窑破坏区复采综放面巷道支护方案研究

Study on Roadway Support Scheme of Fully Mechanized Caving Face in Small Coal Pits

本文针对当前煤矿的小窑破坏区现状,详细介绍了复采综放面巷道的支护难度。采用数值模拟计算的方法对破坏区回采巷道支护方法进行了系统分析,得出了围岩破坏变形机理,并以此分析了围岩控制支护技术。在对比分析的基础上确定了最佳的支护方案,提高了小窑复采巷道的安全强度,降低了小窑开采的支护成本,提升了复采效率。

In this paper, the present situation of the failure area of the small coal pits in the current coal mine is introduced in detail. And the method of numerical simulation is used to analyze the supporting method of mining roadway in the damaged area, and the mechanism of surrounding rock failure is obtained, and the control technology of surrounding rock is analyzed. On the basis of comparative analysis, the optimal support scheme is established, which improves the safety strength of small coal pits mining roadway, reduces the support cost of small kiln mining and improves the effciency of recycling.