Prof. D. N. Singh

MALA S. GUDAL

M.Tech.
Indian Institute of Technology Bombay, Powai, India mala_gudal@yahoo.com

ANALYSIS OF VERTICAL STRIP ANCHORS SUBJECTED TO HORIZONTAL PULL

An anchor is a sub-structural member, which transmits tensile force from the main structure to the surrounding strata. Vertical anchors are generally provided in the construction of sheet pile bulkheads to resist the horizontal forces. Vertical anchors are also used for tieback resistance of earth retaining structures, waterfront structures, at bends in pressure pipelines, and when it is necessary to control thermal stress which are primarily designed and constructed to resist outwardly directed loads imposed on the foundation of a structure. These outwardly directed loads are transmitted to the soil at a greater depth by the anchors. A number of model tests and empirical equations for estimating the pullout capacity of vertical strip anchor have been studied by many investigators. Neely Stuart and Graham (1975) proposed the method of surcharge and method of equivalent free surface. Das and Seeley (1975) have reported a number of empirical equations based on model tests. Akinmusuru (1978) has also reported the results of model tests conducted on vertical anchors in sand. Details of the various theories and experiments, which are related to the pullout capacity of vertical plate anchors are also reported.