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Estimation of Undrained Bearing Capacity for Offshore Soft Foundations with Cyclic Load |
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| Authors: | WANG Jianhua LIU Yuanfeng XING Yan and Di Huimin Professor Geotechnical Engrg |
| Institution: | WANG Jianhua,LIU Yuanfeng,XING Yan and Di Huimin Professor,Geotechnical Engrg. Institute of Civil School of Tianjin University,Tianjin 300072,P. R. China. Graduate Student,Geotechnical Engrg. Institute of Civil School of Tianjin University,Tianjin 300072,P. R. China. Senior Engineer,Offshore Oil Engrg. Design Corp. of China,Beijing,P. R. China. |
| Abstract: | The degradation strength of soils under cyclic loading is studied and a method for determining the cyclic degradation strength with cyclic triaxial tests is given in the paper. Furthermore, a dummy static method for estimating the undrained bearing capacity for offshore soft foundation under wave loads is developed. It can consider the effect of the difference of cyclic stress for different parts of the foundation on both the degradation strength of the foundation soil and the bearing capacity so that the estimated result can better reflect the real condition of foundation under cyclic loading. The method can be applied to plane and space problem. |
| Keywords: | offshore engineering soft foundation soil dynamics bearing capacity cyclic load |
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