Retaining Wall Key Points - Soil Height Behind Wall: 6.0 m - Wall Stem Height Above Base: H = 1.5 m - Top Thickness of Wall Stem: C = 0.3 m - Base Thickness: 0.6 m - Base Width (Total): B = 4.0 m - Base Projection Toward Excavated Side: A = 1.35 m - Base Projection Into Soil Side: P = 2.05 m Engineering Notes - Stability Consideration: Large base width (4.0 m) provides resistance against overturning. - Soil Pressure: Height of 6.0 m indicates significant lateral earth pressure acting on the wall