Uplift Capacity of Anchor Plates in Two-layered Cohesive-frictional Soils

Abstract

Based on a large number of laboratory model results many investigators reported the uplift loading of anchor plates embedded in homogeneous soils, a review of related last works shows that not much research has been done to define the ultimate uplift capacity in a two-layered cohesive-frictional soil, a problem that is often encountered in field. This study investigated experimentally the behavior of anchor plates buried and developed analytical expressions to estimate the uplift capacity of strip and circular anchor plates in layered soils. The study suggested an expression to determine the uplift loading of irregular shape anchor plates in layered cohesive soil. This research has developed experimentally expressions to estimate the uplift capacity of irregular shape anchor plates in layered cohesive-frictional soils. The study observed that the ultimate uplift capacity is dependent on the relative strength of the two layers, the depth ratio of embedment and the upper layer thickness ratio.