Effect of Differential Subsidence of Subgrade at the Cut to Fill Location on Pavement Structure

摘要

This paper presents longitudinal and cross differential subsidence curve equations according to the analysis of mechanism of differential subsidence of subgrade at the cut to fill location, and deduces calculating formulation of bending-tensile stress in pavement structural layers caused by differential subsidence of subgrade at the cut to fill location longitudinally and crossly based on that pavement structure is equivalent to elastic beam on Winkler-Ground, as well as analyses the effect of the index of differential subsidence on bituminous pavement structure and cement concrete pavement structure.