Wave Flume Simulation Experiment on Influence of Wave Load on Bearing Capacity of Monopile

Shanghai Jiaotong Daxue xuebao

JIN Xiaokai, CHEN Jinjian, LIAO Chencong¹ 

[1] Department of Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;

关键词: wave load;    monopile bearing capacity;    wave flume experiment;    excess pore pressure;   

DOI  :  10.16183/j.cnki.jsjtu.2019.268

来源: DOAJ

【 摘 要 】

For the foundation of the monopile in the shallow water environment,a scale model of sand-monopile-wave was adopted in the wave flume simulation experiment, and the static load test of the monopile under wave action was explored. The pore water pressure of the soil around the monopile and the settlement of the monopile at different wave loads were examined. Based on the static load test results, the interaction mechanism between sand and the monopile subjected to wave load, the characteristics of load settlement curve,and the influence of excess pore water pressure (ps) on the vertical bearing capacity of the monopile with various pile diameters were analyzed. The results show that due to the presence of the monopile, the ps of the soil around the pile increases whereas the ps at the bottom of the monopile decreases. However, the ps around the pile increases with increasing pile diameter. The bearing capacity of the monopile under the influence of wave load is less than that without wave load. At the same load, the pile settlement increases remarkably and the increase is more obvious in the case of larger pile diameter. The experiment shows that the effect of wave load on the pile foundation bearing capacity should be monitored during the design process.

【 授权许可】

Unknown