Journal article

Laboratory Model Test on Contact Erosion of Dispersive Soil Beneath Pavement Layers

P Jegatheesan, P Sothilingam, A Arulrajah, M MIRI DISFANI, P Rajeev

Geotechnical Testing Journal | ASTM International | Published : 2015

Abstract

Contact erosion failure beneath the pavement layer is frequently under-estimated. The risk of contact erosion failure is high at the interface of pavement embankment constructed on granular working platform material, particularly due to the higher constriction size than the embankment material. In addition, this type of failure occurs in the long-term process and it is furthermore difficult to identify, assess, and mitigate these failures initially. A new laboratory erosion test apparatus was developed in this research and its suitability for determining the risk of pavement deformation due to contact erosion failure as a result of vertical ground water fluctuations at the pavement embankmen..

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