首页|Effect of particle composition and consolidation degree on the wave-induced liquefaction of soil beds
Effect of particle composition and consolidation degree on the wave-induced liquefaction of soil beds
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
万方数据
维普
The wave-induced liquefaction of seabed is responsible for causing damage to marine structures.Particle composition and consolidation degree are the key factors affecting the pore water pressure response and liquefaction behavior of the seabed under wave action.The present study conducted wave flume experiments on silt and silty fine sand beds with varying particle compositions.Furthermore,a comprehensive analysis of the differences and underlying reasons for liquefaction behavior in two different types of soil was conducted from both macroscopic and microscopic perspectives.The experimental results indicate that the silt bed necessitates a lower wave load intensity to attain the liquefaction state in comparison to the silty fine sand bed.Additionally,the duration and development depth of liquefaction are greater in the silt bed.The dissimilarity in liquefaction behavior between the two types of soil can be attributed to the variation in their permeability and plastic deformation capacity.The permeability coefficient and compression modulus of silt are lower than those of silty fine sand.Consequently,silt is more prone to the accumulation of pore pressure and subsequent liquefaction under external loading.Prior research has demonstrated that silt beds with varying consolidation degrees exhibit distinct initial failure modes.Specifically,a dense bed undergoes shear failure,whereas a loose bed experiences initial liquefaction failure.This study utilized discrete element simulation to examine the microscopic mechanisms that underlie this phenomenon.
wave flumeliquefactionpore water pressureconsolidation permeability experimentdiscrete element simulation
Zhiyuan Chen、Yupeng Ren、Guohui Xu、Meng Li
展开 >
Shandong Provincial Key Laboratory of Marine Environment and Geological Engineering,Ocean University of China,Qingdao 266100,China
Marine Ecological Restoration and Smart Ocean Engineering Research Center of Hebei Province,Qinhuangdao 066000,China
Key Laboratory of Marine Environment and Ecology(Ocean University of China),Ministry of Education,Qingdao 266100,China
Key Laboratory of Submarine Geoscience and Prospecting Techniques(Ocean University of China),Ministry of Education,Qingdao 266100,China
展开 >
National Natural Science Foundation of ChinaOpening Foundation of Marine Ecological Restoration and Smart Ocean Engineering Research Center of Hebei Province
万方数据
维普
