The elevation and plan of a bracing system for an open cut in sand are shown in Figure 14.20. Using Peck's empirical pressure diagrams, determine the design strut loads. Given: γsand = 18 kN / m3, Ï•' = 32°, x = 1.83 m, z = 0.91 m, and s = 3.05 m.

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Struts-center-to-center spacing Sand Section Plan