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.
出处
《西部交通科技》
2014年第5期65-68,72,共5页
Western China Communications Science & Technology
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
Highway tunnel
Midas/GTS
Numerical simulation
Surrounding rock displacement
Stress
Plastic zone
Shotcrete-bolt support structure
Intemal force
