矿山隧道掘进围岩稳定性动态监测研究  

Dynamic Monitoring of the Surrounding Rock Stability During the Advancement of Mine Tunnels

作　　者：关祥宏[1] GUAN Xiang-hong(China Railway Siyuan Survey and Design Group Co Ltd,Wuhan 430063,Hubei,China)

机构地区：[1]中铁第四勘察设计院集团有限公司,湖北武汉430063

出　　处：《矿冶工程》2020年第3期34-38,共5页Mining and Metallurgical Engineering

摘　　要：在考虑矿区隧道围岩级别的同时,以矿区地质力学特征为基础,采用对数螺线法对矿山隧道掘进围岩稳定性进行分析,以隧道围岩沉降、位移与埋深的关系为研究对象,进行了矿山隧道掘进围岩稳定性动态监测验证。结果表明:侧壁、底部沉降与埋深呈线性关系;侧壁、底部位移与埋深呈线性关系;矿区隧道掘进过程中可通过降低沉降或减少位移来增加围岩稳定性。Considering the grade of surrounding rock in the mine tunnels,a logarithm-spiral method was used to analyze the stability of the surrounding rock in the excavation of mining tunnels based on the geological and mechanical characteristics of the mining area.Based on the studies of the relationship among the settlement,displacement and burial depth of the surrounding rock during the tunnel excavation,the dynamic monitoring of the surrounding rock stability was verified.Results showed that the subsidence of side wall and foot wall exhibits a linear relationship with the burial depth,and the displacement of side wall and footwall also exhibits a linear relationship with the burial depth.It is concluded that the surrounding rock stability can be improved by reducing the subsidence or displacement during the tunnel advancement.

关 键 词：隧道 掘进 围岩 稳定性 监测 对数螺线 

分 类 号：U451.2[建筑科学—桥梁与隧道工程] U455.6[交通运输工程—道路与铁道工程]