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  1. gpgeo

    Keystone Retaining Wall Seismic Design

    I am designing a Keystone wall in California and have a PGA of 0.43. The NCMA Segmental Retaining Wall Seismic Design Manual indicates that if the PGA is greater than 0.29g then the designer should carry out a deformation analysis for sliding at the base using a Newmark type analysis. The...

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