盾构隧道施工地表变形分析与三维有限元分析----外文翻译.doc

Surface deformation analysis of shield tunnel construction and three-dimensional finite element analysis YuningZhuhehua(TongjiUniversity) Abstract: With the increasing density of landmark buildings, the subway construction process on the ground worried about the environmental protection is a growing problem can not be ignored. Shield tunneling technology successfully used in subway construction, how reasonable prediction and control of shield construction of the surface deformation as a new topic. In the basis of an extensive literature, summarized previous calculation method, the finite element method of shield tunnel deformation of three-dimensional finite element simulation, compared with the measured data are more satisfied with the results. Key words: tunnel, ground deformation, three-dimensional finite element analysis 1.Facebook: After the introduction of shield tunnel with a century of development, while significant development, but inevitably lead to formation of the disturbance caused by ground deformation and land subsidence, especially in the shield tunnel in soft soil particularly. Disturbance lead to soil disturbance led to the strength and modulus decrease will lead to a long consolidation and secondary consolidation settlement. Deformation over a range of local level, it will seriously endanger the adjacent buildings and the safety of underground pipeline network, causing a series of geotechnical problems. Thus, the construction of the shield around the formation mechanism of disturbance is significant. Shield Tunnel Construction on a major analysis of surface settlement factor: Shield Tunnel Construction on a major analysis of surface settlement factors a number of successful experience at home and abroad;resulting in surface subsidence due to shield formation damage created during the construction caused ground movement, caused by shield construction of ground movement of factors: