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采用数值模拟软件UDEC建立了离散元模型,对高应力破碎软岩巷道采用锚喷支护和锚注加固进行了数值模拟,结果表明:锚注加固通过注浆将破碎围岩胶结成整体,改善了围岩的结构及其力学机制,提高了围岩的强度.通过对支护效果的现场监测,验证了锚注加固能够有效控制围岩变形,是解决高应力破碎软岩支护问题的有效途径。
The discrete element model was established by using the numerical simulation software UDEC. The numerical simulation was carried out on the mine roadway with high stress and broken soft rock using bolt-shotcrete support and anchor injection reinforcement. The results show that the grouting rock solidifies by grouting, Improve the structure and mechanical mechanism of surrounding rock and improve the strength of surrounding rock.By monitoring the supporting effect, it is verified that the bolt-grouting reinforcement can effectively control the deformation of surrounding rock, which is the key to solve the problem of high stress and broken soft rock support Effective Ways.