PULLOUT LOAD CAPACITY OF A CIRCULAR EARTH ANCHOR BURIED IN SAND

Abstract

THE RESULTS OF PULLOUT LOAD CAPACITY TESTS PERFORMED ON NUMEROUS SMALL-SCALE MODEL EARTH ANCHORS ARE PRESENTED. THE TECHNIQUES OF DIMENSIONAL ANALYSIS ARE USED TO DEVELOP EMPIRICAL RELATIONSHIPS AMONG ANCHOR SIZE, DEPTH OF ANCHOR EMBEDMENT, AND PULLOUT CAPACITY FOR SINGLE ANCHORS OF CIRCULAR CROSS-SECTION BURIED IN A DENSE UNIFORM SAND. A DISTINCTION IS MADE BETWEEN SHALLOW AND DEEP ANCHORS. THE RANGE OF THE RATIO OF DEPTH OF EMBEDMENT TO ANCHOR DIAMETER STUDIED CORRESPONDS TO THE GENERAL RANGE FOUND IN FIELD APPLICATIONS OF EARTH ANCHORS THAT ARE USED TO PROVIDE TIE- BACK RESISTANCE FOR RETAINING STRUCTURES AND UPLIFT RESISTANCE FOR TRANSMISSION TOWERS, UTILITY POLES, MOORINGS, ETC. THE RESULTS OF TWO FULL-SCALE FIELD TESTS OF WEBB-LIPOW TYPE ANCHORS ARE ALSO REPORTED. /AUTHOR/