The anchor plate foundations are widely used as anchoring foundations in offshore mooring systems,characterized by their high bearing capacity and stability.The bearing capacity of anchor plates is an important factor in foundation design,and it is closely related to the properties of the soil.Existing studies on the bearing capacity of anchor plates have mainly focused on single homogeneous soil layers,while the understanding of the bearing characteristics in layered soil,especially the soil with a hard top layer and a soft bottom layer,is limited.Based on numerical analysis,this study comprehensively considers the layered nature of the soil and investigates the bearing characteristics of anchor plate foundations in stiff-clay/soft-clay layered soil and sand/soft-clay composite soil.The influence of key factors,such as anchor plate embedment depth,soil shear strength ratio,layer thickness ratio,and soil properties,on the failure mode and bearing capacity of the soil around the anchor plate are analyzed.The results show that in the stiff-clay/soft-clay layered soil,the ultimate bearing capacity significantly increases with the increase of the shear strength ratio and the layer thickness ratio.In the sand/soft-clay composite soil,the ultimate bearing capacity also increases with the increase of the layer thickness ratio.When the anchor plate failure in the soft clay layer shows localized failure,the influence of the layer thickness ratio on the bearing capacity gradually diminishes.This study can provide calculation methods and theoretical references for determining the bearing capacity of anchor plate foundations in layered soil with a hard top layer and a soft bottom layer.
维普
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