钢筋混凝土盾构衬砌结构的三维数值分析  

Numerical analysis of RC shield tunnel lining

作　　者：鞠杨[1] 徐广泉[1] 谢和平[1] 

机构地区：[1]中国矿业大学北京市岩石混凝土破坏力学重点实验室,北京100083

出　　处：《计算力学学报》2005年第4期437-442,共6页Chinese Journal of Computational Mechanics

基　　金：国家973(2002CB412705);国家自然科学基金创新研究群体(50221402);国家自然科学基金(19702021);北京市教委重点实验室项目(SYS102900438)资助项目.

摘　　要：结合地铁盾构隧道工程实例,应用三维有限元模型和ANSYS程序分析了上部和周围土体荷载作用下钢筋混凝土衬砌的应力、应变分布与开裂规律。模型考虑了衬砌与周围土体的共同作用、土体和钢筋混凝土材料的弹塑性性质,通过刚度折减考虑了管片接头不连续性对衬砌应力、应变与开裂性质的影响。Connectiong to the actual shield tunneling construction of metro, the paper finite element model and ANSYS code to analyze the stess and strain distributions and shield tunnel lining. By taking the soil around the tunnel as a part of the FE nume interaction between lining and soils as well as the elastoplasticity of soils and steel rei were considered in this model. The rigidity reduction model of the segment joint was paper and the influence of the segment joint to the stress, strain and crack rule of quantitatively analyzed as well. tends to use 3D crack rule of RC rical model, the nforced concrete put forward in the tunnel lining was

关 键 词：盾构隧道 衬砌结构 数值计算 三维有限元模型 

分 类 号：U451.4[建筑科学—桥梁与隧道工程] TU311[交通运输工程—道路与铁道工程]