TY - JOUR

T1 - Lateral stability of rigid poles subjected to an applied couple

AU - Kondner, Robert L.

AU - Krizek, Raymond J.

AU - Schimming, Bruce B.

N1 - Copyright:
Copyright 2016 Elsevier B.V., All rights reserved.

PY - 1963

Y1 - 1963

N2 - Functional relationships are developed for the load-deflection characteristics of a rigid, vertical pole, embedded in sand and subjected to an applied couple. The study is based on non-dimensional techniques and the physical variables included in the theoretical analysis are the ground-line deflection, depth of embedment, geometry of the pole cross-section, applied couple, time of loading, and soil parameters. The soil parameters used include the density, angle of internal friction, flow characteristics, and relative density of the sand. Non-dimensional techniques in conjunction with small scale model studies are used to determine the explicit form of the interrelationship among the above physical variables for a pole embedded in a very dense, uniform, fine, dune sand of constant properties and subjected to an applied couple. Hyper-bolic prediction equations are given from which the load-deflection characteristics of a prototype pole might be estimated. A failure criterion in the form of a stability number relating the ultimate applied couple to the geometry of the pole-soil system is given and correlated with the failure criterion of the same pole-soil system subjected to a horizontal ground-line thrust. Several illustrative examples are worked.

AB - Functional relationships are developed for the load-deflection characteristics of a rigid, vertical pole, embedded in sand and subjected to an applied couple. The study is based on non-dimensional techniques and the physical variables included in the theoretical analysis are the ground-line deflection, depth of embedment, geometry of the pole cross-section, applied couple, time of loading, and soil parameters. The soil parameters used include the density, angle of internal friction, flow characteristics, and relative density of the sand. Non-dimensional techniques in conjunction with small scale model studies are used to determine the explicit form of the interrelationship among the above physical variables for a pole embedded in a very dense, uniform, fine, dune sand of constant properties and subjected to an applied couple. Hyper-bolic prediction equations are given from which the load-deflection characteristics of a prototype pole might be estimated. A failure criterion in the form of a stability number relating the ultimate applied couple to the geometry of the pole-soil system is given and correlated with the failure criterion of the same pole-soil system subjected to a horizontal ground-line thrust. Several illustrative examples are worked.

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U2 - 10.3208/sandf1960.4.24

DO - 10.3208/sandf1960.4.24

M3 - Article

AN - SCOPUS:85007904933

SN - 0038-0806

VL - 4

SP - 24

EP - 43

JO - SOILS AND FOUNDATIONS

JF - SOILS AND FOUNDATIONS

IS - 1

ER -