soil cohesion

Some typical values of soil cohesion for different soils can be found on Geotechdata.info database.

Vegetation can provide a considerable contribution to the stability of slope through enhancing soil cohesion.

In this context, a grassed waterway allows increasing soil cohesion and roughness.

Deforestation reduces soil cohesion, so that erosion, flooding and landslides ensue.

Small amounts of water can strengthen soils because the surface tension of water increases soil cohesion.

Internal soil cohesion, negative pore pressure ("soil suction"), soil structure, and/or tree root reinforcement may be responsible for this.

Terzaghi concludes that shear strength is equal to the soil cohesion value added to the product of the effective stress and the tangent of the soils friction angle.