大跨度隧道单侧壁导坑法数值模拟分析  

Numerical Simulation Analysis of Single Sidewall Guide Pit Method for Large Span Tunnels

作　　者：朱海涛 ZHU Hai-tao(The Fourth Engineering Co.Ltd.of China Railway 11th Bureau Group Corporation Limited,Wuhan 430061,China)

机构地区：[1]中铁十一局集团第四工程有限公司,武汉430061

出　　处：《工程建设与设计》2024年第19期117-119,共3页Construction & Design for Engineering

摘　　要：介绍了单侧壁导坑法的工艺流程,通过对丘陵地貌区的城仔山隧道进行单侧壁开挖数值模拟,分析了洞周位移、超前管棚应力以及系统锚杆轴力随工序变化的曲线,探讨单侧壁导坑法在实际工程中的应用效果。This paper introduces the process flow of single sidewall heading method.Through numerical simulation of single sidewall excavation of Chengzishan Tunnel in hilly landform area,the curves of the displacement around the tunnel,the stress of the leading pipe shed and the axial force of the system anchor rod are analyzed,and the application effect of single sidewall heading method in practical engineering is discussed.

关 键 词：隧道开挖 单侧壁导坑法 数值模拟 FLAC 3D 

分 类 号：U455[建筑科学—桥梁与隧道工程] TP391.9[交通运输工程—道路与铁道工程]