摘要
依托广东省江罗高速大石岭隧道工程项目,采用数值模拟的分析方法,针对双洞隧道在浅埋偏压地形的施工条件下,模拟施工过程中后行动与先行洞之间不同掌子面纵向间距对隧洞周围岩体的应力分布规律,通过分析隧洞上方地表沉降、洞周收敛变形以及中岩墙应力随掌子面纵向间距的变化情况,得到了双洞隧道施工中掌子面的合理纵向间距.
Based on the Dashiling tunnel of Jiangluo expressway in Guangdong Province,numerical simulation has been used to obtain the distributing law of deformation and stress in surface and surrounding rock.Different excavation face distances have been considered and a reasonable distance between excavation faces is given.The conclusions presented can provide references in the design and construction for similar projects.
出处
《武汉理工大学学报（交通科学与工程版）》
2016年第5期919-922,共4页
Journal of Wuhan University of Technology（Transportation Science & Engineering）
基金
武汉理工大学创新研究基金项目资助(2015Ⅲ011)
关键词
隧道工程
掌子面纵向间距
数值分析
小净距隧道T浅埋暗挖
偏压
tunneling engineering
excavation faces distance
numeric analysis
small spacing tunnels
shallow underground excavation
unsymmetrical load
