杨营煤矿巷道围岩强度及支护等级研究

Strength and Support Level of Surrounding Rock of Tunnel in Yangying Coal Mine

通过采取两步分类法对巷道围岩强度进行定量、系统的划分,提出巷道围岩的强度等级划分标准,进而提出相应的支护等级划分标准和具体支护方案,形成了一套适用于杨营煤矿的巷道围岩稳定性评价与控制技术体系。并通过具体工程实例验证了该技术的有效性,达到保障矿井安全,优化支护效果的目的。

By adopting the two steps classification method to quantitatively and systematically classify the strength of the surrounding rock,it is put forward the grading standards of strength of the surrounding rock,as well as the corresponding grading standards of supporting and specific supporting scheme,to form a system of stability evaluations and control technologies applicable to the surrounding rock of Yangying coal mine tunnel. Through the successful application of specific engineering examples,the effectiveness of the technology is verified,so as to reach the goal of ensuring the safety of mine and optimizing the effect of supporting.