摘要
文章结合湖南雪峰山特长公路隧道的工程实践,根据隧道开挖过程中地应力随施工工序逐步释放的真实过程,基于有限元计算程序,运用“施加虚拟支撑力法”进行适当的开发,对隧道开挖过程进行数值模拟研究,获得了对隧道围岩应力形变场一种快捷准确的认识思路,不仅能更好的符合工程实际,也为隧道开挖过程的数值模拟研究提供了一种思路和方法。
With XueFeng mountain super-long high-way tunnel practice in HuNan province as an example,and according to the fact of the graduate releasing of geo-stress in the practical process of tunnel excavation,the paper made some development and numerical simulation research for the tunnel relying on virtual-supporting-force method.It finally acquired an easy and precise idea for understanding the tunnel stress-deformation field in surrounding rock of tunnel,which is conformed with the engineering practice and thus provide an idea and method for numerical simulation study during tunnel excavation.
出处
《西部交通科技》
2007年第2期43-47,共5页
Western China Communications Science & Technology
基金
交通部西部建设科技项目"雪峰山特长公路隧道关键技术研究"(200331879802)。
关键词
雪峰山隧道
应力释放
虚拟支撑力
数值模拟
应力形变场
XueFeng mountain tunnel
Stress releasing
Virtual force
Numerical simulation
Stress-deformation
