Performances of geo-reinforced and stone column-supported embankment by a mounting-beams model

Abstract

This study aims to develop a mounting-beams model predicting the behavior of geosynthetic reinforced and stone column-supported embankment with upper pavement under vehicle loads. Existing models are made a comparison with the proposed model, which can be deemed as their extension. Multiple factors, such as modified stiffness for tensionless granular mattress, the nonlinearity and consolidation of soft soils and the beam-soil interface resistance, are taken into account. On this basis, a parametric study is carried out to quantify the influence of bending stiffness of the upper pavement structure, the tensile stiffness of geosynthetic reinforcement, the vertical stiffness of a stone column wall, and the consolidation of soils on the response of the embankment system reinforced with geosynthetic and stone columns.