in Design Guides
- Commonly, soil is not homogeneous through the entire required depth of installation; a soil behavior analysis must be done in order to be able to calculate the theoretical ultimate capacity and varies quite a lot depending on the site conditions.
- Cohesion is the term used for shear strength that exists in the absence of compressive stress.
- Non-Cohesive Soil (sand and gravel) shear strength exists only in the presence of compressive stress
- Cohesive Soil (clay) is composed of particles that adhere to each other even in the absence of compressive stress
