公路隧道开挖与支护数值模拟分析  

Highway Tunnel Excavation and Support Numerical Simulation Analysis

作　　者：唐明亮 

机构地区：[1]广西交通科学研究院,广西南宁530007

出　　处：《西部交通科技》2014年第5期65-68,72,共5页Western China Communications Science & Technology

摘　　要：文章以某公路隧道为工程背景,采用Midas/GTS有限元程序对其施工过程进行二维弹塑性数值模拟,分析得出施工阶段隧道围岩位移、应力的变化规律和开挖引起的塑性区,以及初期锚喷支护结构所产生的内力,为公路隧道设计和施工提供理论依据和指导。Taking a highway tunnel as engineering background, by using Midas/GTS finite element program,this article conducted the two-dimensional elastic-plastic numerical simulation of its construction process,analyzed and obtained the variation rules of tunnel surrounding rock displacement and stress at construction phase as well as the plastic zone caused by the excavation, and the internal forces caused by shotcrete-bolt support structure at early stage, thereby providing the theoretical basis and guidance for the design and construction of highway tunnel.

关 键 词：公路隧道 MIDAS GTS 数值模拟 围岩位移 应力 塑性区 锚喷支护结构 内力 

分 类 号：U455.4[建筑科学—桥梁与隧道工程]