The Behavior Analysis of a Cofferdam Constructed by Double Sheet Pile Wall Above Muck
- 2.1k Downloads
This paper presents an investigation on the behavior of a cofferdam structure constructed by double sheet pile walls above the muck, which is used to construct the inner foundation for an immersed tube tunnel project in Guangzhou China. A detailed three-dimensional FEM model is formulated to simulate the whole processes, including the construction of the cofferdam and the excavation of the inner foundation. The strength reduction method is then adopted to calculate the safety factor of the cofferdam. In addition, the effects of the thickness of the filling sand is highlighted.
KeywordsCofferdam Double sheet pile wall FEM model Filling sand
This work was sponsored by the National Key R&D Program of China (2017YFC0806004), the project of Guangzhou Municipal Engineering Design & Research Institute (2017-018) and the National Natural Science Foundation of China (51378388).
- 1.COSTIND: Code for design of dry dock CB/T 8524–2011Google Scholar
- 2.Yong, H., Hao, Z., Xiao-xia, Y., Wei, C., et al.: Finite-element analysis on steel tie rod of double-row steel sheet pile cofferdam. J. Zhejiang Univ. Water Resour. Electric Power 28(2), 58–63 (2016)Google Scholar
- 3.Li, Y.-W., Xie, M., Feng, T., Jiang, X., et al.: Numerical analysis double-row steel sheet pile cofferdam for soft soil foundation. Water Resour. Hydropower Eng. 46(9), 40–44 (2015)Google Scholar
- 8.Schanz, T., Vermeer, P.A., Bonnier, P.G.: The harden soil model-formulation and verification. In: Beyond 2000 in Computational Geotechnics (1999)Google Scholar