Research On Some Problems Of Deep Excavation Of Yanji Street Station Of Shanghai Metro

Along with the development of urban construction, the subway has been paid greater attention to. Adopting ABAQUS finite element software, taking the extended Cambridge model as the constitutive relations of soil,this article has carried on the finite element analog computation to deep excavation of Yanji Street Station of shanghai Metro line M8.0n the basis of analying the problem existing in the usage of classic earth pressure to the design of flexible support structure in the deep foundation pit construction, it has studied on the relationship between lateral earth pressure and excavation depth and horizontal displacement of the retaining wall, it has also calculated and analyzed the friction coefficient on the contact face of support structure and soil body to affects in lateral earth pressure influence. finally, according to the comparison between the result of finite element and the measured field date ,this work has reasoned the conclusion. Probably it can be referred in both the design and construction of the deep foundation supporting pit of the same kind.