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    What is the purpose of providing a shear key in the design of the RCC retaining wall?
    Question

    What is the purpose of providing a shear key in the design of the RCC retaining wall?

    A.

    To enhance the drainage by reducing pore water pressure from backfill and uplift pressure from the foundation

    B.

    To enhance factor safety against sliding due to active earth pressure induced by backfill and surcharge

    C.

    To reduce the pore water pressure induced by backfill and surcharge

    D.

    to increase the overturning moment due to active earth pressure so as to reduce the factor of safety

    Correct option is B



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