轻质吸能材料在地下矿山巷道让压支护中的数值模拟研究  

Numerical simulation study on lightweight energy-absorbing materials used in pressure relief support of underground mine tunnels

作　　者：侯俊 张小瑞 易观胜 Hou Jun;Zhang Xiaorui;Yi Guansheng(Changchun Gold Research Institute Co.,Ltd.;School of Resources and Safety Engineering,Central South University)

机构地区：[1]长春黄金研究院有限公司 [2]中南大学资源与安全工程学院

出　　处：《黄金》2023年第5期8-11,共4页Gold

基　　金：国家重点研发计划项目(2022YFC2905003;2022YFC2905004)。

摘　　要：在深部黄金资源开发过程中,复杂破碎围岩巷道支护是矿山亟须解决的问题之一。目前矿山多使用钢拱架背木联合支护形式,但木材可燃易腐蚀的特点,不适用于井下永久支护。基于数值模拟研究,提出采用具有轻质吸能特点的新型支护材料作为衬砌,在巷道支护中取代背木的作用。理论分析结果表明,新型轻质吸能类材料具有明显的吸能、让压效果,较为适用于复杂破碎巷道让压支护体系。The support of complex and fractured surrounding rock tunnels is one of the challenges that should be dealt with urgently during the development process of deep gold resources.At present,mines often use joint support methods with steel arch frames and wood.However,due to the inflammable and easily corrosible properties of wood,it is not applicable for permanent underground mine support.Therefore,based on the numerical simulation study,this paper proposes to use new type of support materials with lightweight energy-absorbing characteristics as the lining to replace the wood in the support of tunnels.The theoretical analysis shows that the new type of support materials has obvious energy absorption and pressure relief effects and is more suitable for the pressure relief support system for complex and fractured tunnels.

关 键 词：轻质吸能材料 初砌 让压支护 巷道支护 数值模拟 

分 类 号：TD353[矿业工程—矿井建设]