A QUASI-STATIC THEORY OF SOIL-STRUCTURE INTERACTION

Abstract

This study treats the effect of the interaction between underground structures and the surrounding soil in reducing the loads transmitted to the structure, the so-called arching phenomenon. A continuum theory of soils proposed by G. A. Geniev is applied to a quasi-static, planestrain problem of arching. The basic partial differential equations are shown to form a hyperbolic set and are solved by the method of characteristics. Consistent stress and velocity fields are obtained. Comparison with available experimental results shows that the Geniev theory underestimates the surface pressure required for failure of an underground structure in relatively dense granular soils. The source of this difficulty is explained and an approximate method of overcoming it is presented. A simplified extension to a theory taking account of inertia of the soil and unsteady motions is treated in an appendix.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1964
Accession Number
AD0450077

Entities

People

  • A. R. Robinson
  • W. B. Bedesem
  • Y. C. Das

Organizations

  • University of Illinois Urbana–Champaign

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Cartesian Coordinates
  • Civil Engineering
  • Continuum Mechanics
  • Department Of Defense
  • Differential Equations
  • Equations
  • Government Procurement
  • Internal Friction
  • Mechanics
  • Method Of Characteristics
  • Molecular Dynamics
  • Partial Differential Equations
  • Plastic Flow
  • Pressure Distribution
  • Stratified Fluids
  • Two Dimensional
  • Underground Structures

Readers

  • Geotechnical Engineering.
  • Mechanical Engineering/Mechanics of Materials.
  • Theoretical Analysis.