2. Soil deformability

2.1 General

Deformability takes different forms depending on the nature of the soil and the type of structure, as shown by the following examples:

• Under a surface load (figure 2 ), we can distinguish, as L. Ménard did for pressuremeter calculations, a zone under the load where volume deformation dominates and an outer zone where deformation is more deviatoric (distortion of the soil without significant change in volume). Surface foundations for walls and columns generally correspond to the situation shown in figure 2 a, while...