Experimental and Analytic Study of the Uplift Capacity of a Horizontal Plate Anchor Embedded in Geo-Reinforced Sand

Abstract

AbstractThe foundation systems under uplift loads, in particular, should be designed in accordance with the factors that influence uplift capability. Anchor systems have recently been used successfully in structures that have been subjected to uplift force. These anchor systems are affected by soil properties, loading conditions, embedment ratio and anchor group configuration. Model tests in the laboratory were used to investigate the uplift behaviour of plate anchors embedded in cohesion-less soil media with and without geosynthetic. Many factors, including the type of geosynthetic, the area of the anchor plate, relative density, the depth of embedment, the type of soil and the area of geosynthetic inclusion, have significantly influenced plate anchor uplift behaviour. The present paper describes the methodology and experimentation on model horizontal plate anchors embedded in geosynthetic reinforced cohesion-less soil beds. Also, the analytical investigation was carried out and the results were compared. It is observed those plate anchors embedded in reinforced soil exhibit 1.4 times more uplift capacity than the anchors embedded in unreinforced soil. Inclusion of geosynthetic layer increases the effective area of anchorage.KeywordsPlate anchorsUplift capacityReinforced soilModel study