Pv psinesh

where 5 is the angle of interface friction along the virtual plane and the angle 0 (shown on Figure 11.8) is given by:

f b} """ ^ = tan 1 It I Figure 11.8. (Top) Virtual plane with no friction at back of reinforced concrete wall and (bottom) inclined virtual plane with friction

The procedures used to design such walls are identical to those used for mass gravity walls, as discussed at length in Section 11.5 below.

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