Accession Number : AD0451506
Title : ARCHING IN SOIL DUE TO THE DEFLECTION OF A RIGID HORIZONTAL STRIP
Descriptive Note : Final rept.
Corporate Author : NAVAL CIVIL ENGINEERING LAB PORT HUENEME CA
Personal Author(s) : Chelapati, C V
Report Date : Oct 1964
Pagination or Media Count : 73
Abstract : A study is made of the amount of arching developed in an ideal soil of finite depth due to the deflection of a rigid horizontal strip or base when the soil is subjected to high static pressures. Solutions are obtained using the equations of plane strain in the form of an infinite series. A condition is imposed that the net pressure on the base cannot be tensile. It is shown that arching in this case is a function of the parameters b/h, ph/dE, and mu; where 2b is the width of the base, h is the depth of soil, p is the pressure on the base with no deflection, d is the amount of displacement, E is the modulus of elasticity, and mu is Poisson's ratio of the soil. The first six terms in the series are evaluated using a digital computer for a wide range of parameters. The accuracy of the final solution is shown to be quite adequate. Graphs are presented showing the pressure distribution on the base and the amount of arching over the base, and an example is given to demonstrate the use of these plots.
Descriptors : *UNDERGROUND STRUCTURES , LOADS(FORCES) , DEFLECTION , SOILS , WAVE PROPAGATION , PRESSURE , LOAD DISTRIBUTION , SOIL MECHANICS
Subject Categories : Structural Engineering and Building Technology
Distribution Statement : APPROVED FOR PUBLIC RELEASE