Deformation Characterization of Subgrade Soils for Highways and Runways in Northern Environments

Publisher Website
Google Scholar
Abstract
Roads and runways in Northern Canada often must carry exceptionally heavy loads. In order to design for these loads, a procedure has been developed which enables the prediction of fatigue life of pavements. Experimental evidence indicates that the definition of resilient deformation, which controls fatigue life of pavements, can be resolved in terms of stress state variables. The resilient modulus is defined in terms of (σ1 – σ3), (σ3 – ua), and (ua – uw) which is applied in a theoretical analysis. Typical forms of the constitutive relationships are presented. The effect of freeze–thaw cycles does not appear to produce significant hysteresis in the constitutive relationships.

This publication has 0 references indexed in Scilit: