大断面浅埋巷道围岩控制技术研究

摘要

针对王庄煤矿大断面浅埋巷道的赋存条件,通过对顶板的受力计算,分析了此类巷道的变形特点,提出了巷道支护参数,并对巷道进行了矿压观测.结果表明:采用锚杆+锚索+金属网+钢筋梯子梁的联合支护方式,可以增强围岩的刚性和整体性能,有效控制围岩的稳定.%In view of the existing conditions of the large-section shallow-buried roadway in Wangzhuang Coal Mine, the paper calculates roof pressure, analyzes the deformation characters of the roadway, and puts forward the parameters of the roadway support.The results show that the combination of bolt, mining cable anchor, metal net, plus steel ladder shape beam can enhance the rigidity and overall performance of surrounding rock, manage the surrounding rock effectively.