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Title: Effect of Shape on Holding Capacity of Plate Anchors Buried in Soft Soil
Authors: Singh, S P
Ramaswamy, S V
Keywords: plate anchor
uplift capacity
soft clay
suction force
embedment ratio
shape factor
Issue Date: 2008
Publisher: Taylor and Francis
Citation: Geomechanics and Geoengineering: An International Journal Volume. 3, No. 2, June 2008, pages 157--166
Abstract: Plate anchor is one of the most common varieties of anchors used in the construction and maintenance work of various on-land and offshore structures.An accurate estimation of the uplift capacity of anchor foundations is necessary for an economical design as well as for the safety and stability of structures. This paper outlines the effect of shape of anchor plates on their breakout capacity, through a series of model tests. Both shallow and deep anchor behaviours were investigated under conditions developing suction force and without suction force. The results of these tests are presented in terms of load-displacement behaviour, variation of breakout factors (with and without suction force) with depth of embedment, the critical embedment depth of anchors and variation of suction force with embedment ratio. Further, the variations of breakout factor ratio with aspect ratio and embedment ratio are reported. Based on the experimental results and the model test results of other investigators an empirical relationship has been suggested to determine the shape factor and holding capacity of plate anchors buried in saturated cohesive soils.
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