Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Contact erosion initiated by clay dispersion beneath pavement layers
Dispersive failures have been reported throughout the world in the recent past. Soils, in which they occur, are vulnerable to erosion even in quiet water. The initiation of dispersive failure below the pavement layers would progress without any sign and the consequences would be more severe than other types of pavement failure. This paper describes a theoretical development of an analytical model to quantify the mass of particle loss due to dispersion failure below the pavement layers and the associated transport and deposition of the detached particles. The analytical model is validated using the experimental results for four different materials with dispersive characteristics. The model calculations are compared with the experimental results and a close correlation is found between the model-calculated and experimental results. The calculated total mass loss per unit area for the most dispersive soil is 1.90 g/cm2, which is very close to the experimental result of 1.72 g/cm2. The study indicates that the mass loss in the first water contact is significantly greater than those in the subsequent cycles for all the materials in the analytical and experimental results. Also, the calculated total mass loss is very close to the experimental results.
Contact erosion initiated by clay dispersion beneath pavement layers
Dispersive failures have been reported throughout the world in the recent past. Soils, in which they occur, are vulnerable to erosion even in quiet water. The initiation of dispersive failure below the pavement layers would progress without any sign and the consequences would be more severe than other types of pavement failure. This paper describes a theoretical development of an analytical model to quantify the mass of particle loss due to dispersion failure below the pavement layers and the associated transport and deposition of the detached particles. The analytical model is validated using the experimental results for four different materials with dispersive characteristics. The model calculations are compared with the experimental results and a close correlation is found between the model-calculated and experimental results. The calculated total mass loss per unit area for the most dispersive soil is 1.90 g/cm2, which is very close to the experimental result of 1.72 g/cm2. The study indicates that the mass loss in the first water contact is significantly greater than those in the subsequent cycles for all the materials in the analytical and experimental results. Also, the calculated total mass loss is very close to the experimental results.
Contact erosion initiated by clay dispersion beneath pavement layers
Premkumar, S. (Autor:in) / Piratheepan, J. (Autor:in) / Rajeev, P. (Autor:in)
Geomechanics and Geoengineering ; 17 ; 524-546
04.03.2022
23 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Laboratory Model Test on Contact Erosion of Dispersive Soil Beneath Pavement Layers
| British Library Online Contents | 2015
Laboratory Model Test on Contact Erosion of Dispersive Soil Beneath Pavement Layers
| Online Contents | 2015
Experimental Study on Contact Erosion Failure in Pavement Embankment with Dispersive Clay
| Online Contents | 2016
Experimental Study on Contact Erosion Failure in Pavement Embankment with Dispersive Clay
| British Library Online Contents | 2016