Part (IV) Following sketch show a proposed retaining construction project. Please do the
following:
2) Find factor of safety against sliding and overturning (F. S. > 1.5), perform eccentricity (middle third rule, e < ± B/6), check for qmax (qmax < Allowable bearing capacity) and qmin (No tensile stresses). If the wall is unsafe change the dimensions of slab and/or wall/construct key at base. Use the trial and error method to make sure all the safety checks are performed, and wall is safe. The soil above base slab (shown as shaded part) can be considered while performing the checks. There is no passive fill on other side.