Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Surface Erosion: Erodibility Characterisation and Physical Parameters Effects
Erosion is one of the main causes of instabilities within hydraulic earth structures. Two types of erosion can be distinguished: internal erosion and surface erosion. This paper deals with the surface erosion phenomenon and the Jet Erosion Test is used in order to evaluate the erodibility of cohesive soils. A new energy analysis of the test is developed, linking the expended energy to the erosion phenomenon. The total eroded mass is correlated to the expended fluid energy and a new erosion resistance index is proposed. The erodibility is evaluated for several natural soil samples which are compacted with the Proctor protocol and which represent a large panel of erosion sensitivity. Two dissipated hydraulic energy scales appear, and a statistical analysis is carried out which gives a correlation of the erosion resistance index with three physical parameters.
Surface Erosion: Erodibility Characterisation and Physical Parameters Effects
Erosion is one of the main causes of instabilities within hydraulic earth structures. Two types of erosion can be distinguished: internal erosion and surface erosion. This paper deals with the surface erosion phenomenon and the Jet Erosion Test is used in order to evaluate the erodibility of cohesive soils. A new energy analysis of the test is developed, linking the expended energy to the erosion phenomenon. The total eroded mass is correlated to the expended fluid energy and a new erosion resistance index is proposed. The erodibility is evaluated for several natural soil samples which are compacted with the Proctor protocol and which represent a large panel of erosion sensitivity. Two dissipated hydraulic energy scales appear, and a statistical analysis is carried out which gives a correlation of the erosion resistance index with three physical parameters.
Surface Erosion: Erodibility Characterisation and Physical Parameters Effects
Regazzoni, P. L. (Autor:in) / Marot, D. (Autor:in) / Nguyen, H. H. (Autor:in)
International Conference on Scour and Erosion (ICSE-5) 2010 ; 2010 ; San Francisco, California, United States
Scour and Erosion ; 182-191
29.10.2010
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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