1.2m 30kN/m Ground Level 2.1m 0.9m 1m

For the embedded strip footing (infinitely long in the out-of-plane direction) shown below, the maximum vertical pressure that the soil can bear before failure is 100 kPa (i.e., q_max should not exceed 100 kPa). What is the maximum overall eccentricity of the foundation in mm before failure? (answer tolerance = 2%).

Consider γ_concrete = 25 kN/m³, γ_soil = 18 kN/m³ and assume that the width of the embedded column is negligible, and the entire top of the foundation is covered with soil.

Hint: for a strip footing, the calculations should be conducted assuming a 1-m long footing in the out-of-plane direction.