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    STP1070

    Stability Considerations in the Design and Construction of Lined Waste Repositories

    Published: 0


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    Abstract

    Safe disposal and storage of solid hazardous waste now requires the construction and filling of repositories underlain by multi-layer liner systems. These lining systems typically contain a large number of material interfaces, many of which have low shear strengths. This introduces potential failure surfaces along the side slopes and base of the fill mass which may control the overall stability of the overlying waste fill during fill placement operations. This paper discusses lessons learned from the investigation of the Kettleman Hills repository stability failure of March 19, 1988, regarding evaluation of the shear resistances along the different liner interfaces, the factors that control overall stability of the waste fill mass, and application of these lessons to analysis and design of safe repository filling operations.

    Keywords:

    stability, waste repository, laboratory testing, analysis, interface shear strength


    Author Information:

    Mitchell, JK
    Professor, Associate Professor and former Cahill Professor of Civil Engineering, University of California, Berkeley, CA

    Seed, RB
    Professor, Associate Professor and former Cahill Professor of Civil Engineering, University of California, Berkeley, CA

    Seed, HB
    Professor, Associate Professor and former Cahill Professor of Civil Engineering, University of California, Berkeley, CA


    Committee/Subcommittee: D18.05

    DOI: 10.1520/STP25308S