摘要
根据结构可靠性理论 ,在考虑了隧道洞门处的地层容重、地层计算摩擦角正切值、基底摩擦系数、基底控制压应力和混泥土容重等因素的不确定性前提下 ,运用一次二阶矩法对隧道洞门结构进行可靠性分析。由计算结果得 :计算模型的选取与可靠度指标有关 。
According to the structure reliability theory and considering the indefinite factors such as the stratum unit weight, the subbase friction coefficient, the base control press stress, the concrete unit weight, etc. a reliability analysis of wing wall tunnel portal structure is made by use of one order two moment method. The computation results show that the computation model is connected with reliability indexes and the reliability indexes meet the requirement on the whole.
出处
《西南交通大学学报》
EI
CSCD
北大核心
2002年第5期496-499,共4页
Journal of Southwest Jiaotong University
