## Determine the elastic settlement of the soil layer from z = 0 to 5B, using the Mayne and Poulos method.

Elastic settlement problem. As shown in Figure 3.27, a square spread footing is designed to support a column. The load on the column, including the foundation weight, is 600 kN. The dimensions of the foundation are B × B = 1.2 m × 1.2 m, and the foundation embedment depth is Df = 0.6m. The subsoil is heterogeneous silty sand with bulk unit weight of 18 kN/m³. The soil’s Poisson’s ratio is 0.5. The soil’s elastic modulus increases linearly with depth: Es = 10,000 (kN/m²)+ 40 (kN/m²/m) × z, and z starts from the bottom of the foundation.The thickness of the foundation slab is 0.3m, the elastic modulus of the foundation is 1.2 × 107 kN/m². Determine the elastic settlement of the soil layer from z = 0 to 5B, using the Mayne and Poulos method.

### Explain why of length-of-bend to sheet thickness increases.

As noted in Fig. 7.16, the state of stress shifts from plane stress to plane strain as the ratio   of length-of-bend to sheet thickness increases. Explain why. This situation….

### Describe the material properties that have an effect on the relative position of the curves shown in Fig. 7.19.

Describe the material properties that have an effect on the relative position of the curves   shown in Fig. 7.19. Observing curves (a) and (c) in Fig. 7.19 on p…..

### Why do tubes have a tendency to buckle when bent?

Why do tubes have a tendency to buckle when bent? Experiment with a straight soda straw, and describe your observations. Recall that, in bending of any section, one-half of the….