机构地区: 长安大学公路学院
出 处: 《延边大学学报(自然科学版)》 2010年第2期174-176,共3页
摘 要: 以弹塑性有限元法为基础,利用大型的仿真模拟软件(ANSYS中的土木模块),分析了在双层公路隧道长台阶施工方法和分部开挖施工方法中各施工阶段围岩和衬砌在空间的受力状态和变形状态;考虑材料的非线性特征,采用DP屈服准则,对这些结果加以分析和总结,为以后具体的结构设计和施工提供了理论支持. Based on the elasto-plastic finite element method,we analyzes the spacial load conditions and deformation states of the surrounding rocks and lining in the different construction projects in the construction method of tunnel long step and partial excavation method by the large-scale simulation software(the engineering module of ANSYS software).The DP's yield criterion was employed for the elasto-plastic characteristics of materials,and the results were also analyzed,it can give some theoretical support for the structural design and construction.