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    Pore Pressure Response to Probe Insertion and Thermal Gradient: ISIMU-II

    Published: Jan 1990

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    The ISIMU-II experiment was designed to assess the pore pressure response during piezometer and heater probe insertion and the subsequent excess pore pressure behavior as a result of a thermal field within the sediment. The dissipation of the excess pore pressures generated during probe insertion was predicted using an exponentially decreasing function which incorporates a smear factor to account for sediment remolding next to the piezometer wall. An analytical model to describe concurrently the rise in excess pore pressures as a result of sediment heating and the radial dissipation of the resulting pore pressures into the surrounding sediment is described and applied to the experimental data.


    piezometer probe, heater probe, thermal fields, pore pressures, sediments

    Author Information:

    Riggins, M
    Assistant professor, Colorado School of Mines, Golden, CO

    Valent, PJ
    Head, Naval Ocean Research and Development Activity, NSTL, MS

    Committee/Subcommittee: D18.02

    DOI: 10.1520/STP17238S

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