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Abstract The geological profile of a site and hence the determination of a site subsoil class can have a significant influence on the selection of a design peak ground acceleration (PGA) as derived from NZS 1170.5 (2004). At the New Plymouth Central Business District (CBD),…

In pseudo-static analysis, the Mononobe-Okabe (M-O) solution is typically applied to determine seismic earth pressures acting on retaining walls where resulting displacements are relatively large. These equations require the input of a horizontal seismic coefficient which is frequently chosen to be equivalent to the free-field…