Figure 4(a) shows the particular wall that has been studied. This wall
is designed to have a static factor of safety of 1.5 against sliding. Based
on the properties shown in Fig. 4(a), the active and at rest forces on the
wall per unit length are 14.32 kips/ft (209 kN/m) and 18.43 kips/ft (269
kN/m), respectively