摘要
以在建的某高速公路岩溶隧道为工程背景,采用有限单元法,运用迈达斯GTS分析软件,建立隧道结构及围岩的三维分析模型,重点分析了不同位置、大小的顶部溶洞在开挖过程中对围岩变形位移、力学特性、塑性区以及支护结构受力的影响,研究了顶部溶洞对隧道围岩稳定性的影响,所得结论可为岩溶地区隧道工程的设计、施工和研究提供指导。
At the engineering background of one building karst tunnel on the highway,by using finite element method,by applying MIDAS analysis software of GTS,building the analysis model of tunnel structure and surrounding rock,emphatically analyzes the effect of different position and size to surrounding rock deformation,mechanical property,plastic zone and the force of supporting structure.It＇s a systematic research about the top karst cave have an influence on the tunnel surrounding rock stability,the conclusion will be referenced significant by tunnel design,construction and research on karst area.
出处
《山西建筑》
2010年第32期313-315,共3页
Shanxi Architecture
关键词
岩溶
顶部溶洞
隧道围岩
数值分析
karst
top karst cave
tunnel surrounding rock
numerical analysis
