大断面托顶煤巷道不稳定区域支护研究

Study on Support in Unstable Areas of Large section Top-coal Supporting Coal Roadway

本文主要对大断面托顶煤巷道周围围岩不稳定区域的破坏问题进行了分析,通过使用顶板钻孔的方式,检测了巷道顶板围岩的具体结构,有效确定了顶板上方的不稳定区域的具体状况,并且提出了科学有效的支护方法,保证巷道的安全性和稳定性。

This paper mainly analyzes the destruction of the unstable area of surrounding rock around the roadway with large section top-coal supporting roadway. Passing the use of roof drilling, the concrete structure of roadway roof surrounding rock was detected, the specific conditions of unstable areas above the roof were effectively determined, and scientific and effective support methods were put forward to ensure the safety and stability of the roadway.