Study of Pipeline Penetration Based on CEL in Clay

Li Jia, Liu Tao, Jiang Jian, Zheng Zhigang, Huang Hong, V. Yepes, W. Qin, L. Wang
2020 E3S Web of Conferences  
In deep water, pipelines are usually laid directly on the seabed. During the laying process, the pipe typically penetrates into the seabed by a fraction of a diameter. The vertical embedment of pipeline and formation of berm during penetration have a significant effect on the pipeline stability. This study aims to investigate the vertical pipeline penetration at uniform and normal consolidated clay, by carrying out a series of numerical analyses, in which the coupled Eulerian-Lagrangian method
more » ... -Lagrangian method (CEL) is incorporated to enable large deformation simulation. These analyses have been compared with collapse loads calculated using the theory solution. The results show that the CEL method is very suitable for simulating large-deformation pipesoil interaction.
doi:10.1051/e3sconf/202016503027 fatcat:mmqbebt6wveutfyptkkbeodi5i