E3S Web Conf.
Volume 198, 20202020 10th Chinese Geosynthetics Conference & International Symposium on Civil Engineering and Geosynthetics (ISCEG 2020)
|Number of page(s)||4|
|Section||Exploration and Innovation of Construction Engineering Technology|
|Published online||26 October 2020|
Comparative analysis of stability of large diameter steel cylinder based on FEM and limit equilibrium
1 CCCC-Tianjin Port Engineering Institute, Ltd., 300222, Tianjin, China
2 CCCC First Harbor Engineering Company, Ltd., 300461, Tianjin, China
3 Key Laboratory of Geotechnical Engineering, Ministry of Communications, 300222, Tianjin, China
4 Key Laboratory of Geotechnical Engineering of Tianjin, 300222, Tianjin, China
5 Tianjin Survey and Design Institute For Water Transport Engineering, 300000, Tianjin, China
The stability mechanism of large-diameter steel cylinder under fill load has not yet formed a complete theory. In order to calculate the stability of the steel cylinder island arm structure in a certain project, the limit equilibrium and finite element method are used in this paper. The limit equilibrium method is based on the limit equilibrium of the soil inside and outside the steel cylinder, taking into account the earth pressure and friction force on the cylinder, and using moment equilibrium to calculate its stability coefficient. Secondly, the finite element strength reduction method is adopted to analyze the stability of the steel cylinder island arm structure by using strength parameters to correlate with the temperature field and changing the boundary conditions of the temperature field. The results and analysis methods of this paper provide references for the construction and design of the same type of projects.
© The Authors, published by EDP Sciences 2020
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