Model for determining the elastic moduli of road pavement layers

Abstract

A mathematical model of dynamic stress-strain state of a multilayer half-space, and a method for constructing and adjusting the design bowl of dynamic deflections under shock loading were developed to solve the problem of determining the elastic moduli of layers of non-rigid road pavement at the stage of its operation. Using this method, the actual dynamic elastic moduli of pavement layer materials were determined for a test section of road. In conclusion, the development prospects of the presented method are discussed as a result of analysis of amplitude-time characteristics of displacements recorded on road pavement surface under shock loading.

Keywords

• asphalt pavements
• mechanical properties
• durability
• backcalculation
• numerical model
• deflection bowl