STP630: Analysis and Measurement of Soil Behavior Around Buried Concrete Pipe

    Corotis, RB
    Associate professor of civil engineering and professor of civil engineering, North-western University, The Technological Institute, Evanston, Ill.

    Krizek, RJ
    Associate professor of civil engineering and professor of civil engineering, North-western University, The Technological Institute, Evanston, Ill.

    Pages: 14    Published: Jan 1977


    Abstract

    A piece-wise linear finite-element model of a buried concrete pipe and the surrounding soil is used to analyze the behavior of a soil-pipe system for both a trench and an embankment installation. Soil moduli for the various soils comprising each installation were determined from uniaxial strain tests, and they are considered to be functions of the major principal stress and the initial dry density. Values of Poisson's ratio were determined from triaxial tests with lateral strain measurements. Based on an extensive set of data from uniaxial strain tests on compacted and undisturbed soils, formulations are proposed to predict the constrained modulus from a knowledge of various soil index properties. Predicted soil stresses and deformations, interface stresses, and pipe deformations were compared to actual measured values from two field installations, and the results substantiate the adequacy of the approach.

    Keywords:

    concrete pipe, soil-structure interaction, conduits, culverts, deformation, earth fills, field tests, mathematical models, soil properties, stresses


    Paper ID: STP38076S

    Committee/Subcommittee: C13.01

    DOI: 10.1520/STP38076S


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