摘要
考虑厦门海底隧道F4风化囊区段岩体的流变作用,采用有限元软件ANSYS对围岩-支护系统相互作用的时效特征作了数值分析。分析中主要计及支护时间和支护厚度这两个因素,分别得到不同支护时间和不同支护厚度下围岩与衬砌的应力、变形及其时间效应。为厦门海底隧道合理选择支护厚度和支护设置时间提供参考。
Considering rheology of the weathering rock（F4） around Xiamen sub sea tunnel, the numerical analysis is done to reflect the time-dependent behavior of the interaction between surrounding rock and supporting system by using ANSYS software. Time for setting lining and lining thickness are involved in the analysis. The time-dependent behavior of stress and deformation of surrounding rock and lining under the condition of different times for setting lining and different lining thicknesses is analyzed. The results can be used to guide the design and construction of the Xiamen sub sea tunnel.
出处
《建筑科学》
北大核心
2006年第5期29-33,24,共6页
Building Science
关键词
海底隧道
流变
数值分析
支护时间
支护厚度
sub sea tunnel
rheology
numerical analysis
time for setting lining
lining thickness
