PREDICTION OF SOIL STRENGTH FROM HYDROLOGIC AND MECHANICAL-PROPERTIES

Cone penetration resistance (an index of soil strength) was found to be linearly dependent upon soil water tension within a limited range of tensions close to saturation. This relationship was established with data collected from 3 soil types in farmers' fields located in the Lower Fraser Valley of British Columbia during late winter and spring over a 2-yr period. For the mineral soils the slope of the relationship was predicted quite well by a theoretically based equation. Prediction for the organic soil could be carried out only with an empirical relationship. -from Authors