STP977: Measurement of Deformations in the Standard Triaxial Environment with a Comparison of Local Versus Global Measurements on a Fine, Fully Drained Sand

    Linton, PF
    Staff engineer, Dames S. Moore, Boca Raton, FL

    McVay, MC
    Associate professor and research engineer, University of Florida, Gainesville, FL

    Bloomquist, D
    Associate professor and research engineer, University of Florida, Gainesville, FL

    Pages: 14    Published: Jan 1988


    Abstract

    Deformation measurement devices are reviewed. Measurements obtained using linear variable differential transformers attached to the middle third of a specimen and the standard burette-piston system are compared. Results are presented for hydrostatic and standard compression tests run on a fully saturated, fully drained, poorly graded fine sand—Reid-Bedford, Unified Soils Classification System group SP. The effects of end restraints and membrane penetration are discussed in regard to the test results. In addition, a new technique is presented for measuring specimen saturation on coarse grain soils.

    Keywords:

    standard triaxial compression, end effects, saturation, deformation, data acquisition, axial strain, radial strain, drained fine sand, Reid-Bedford sand, standard compresion, hydrostatic compression, strain gauges, linear variable differential transformer, inductive device, pneumatic device, membrane penetration, burette


    Paper ID: STP29079S

    Committee/Subcommittee: D18.05

    DOI: 10.1520/STP29079S


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