机构地区: 长安大学公路学院
出 处: 《西安建筑科技大学学报(自然科学版)》 2011年第2期198-201,共4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),分析了该隧道在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,变形状态,考虑材料的非线性特征,采用DP屈服准则,并对这些结果加以分析和总结,为以后的具体的结构设计和施工提供有力的理论支持. Based on the elasto-plastic finite element method,the article,by the large-scale simulation software(the engineering module of ANSYS software),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.In the analysis,DP's yield criterion was employed for the elasto-plastic characteristics of materials.The results were analyzed and summed up for the structural design and construction on the strong theoretical support.