Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Rock scour by wall jets downstream of dams can compromise dam safety. The potential for such scour and its extent can be quantified by making use of the Erodibility Index Method (Annandale 1995; 2006). This method is based on a relationship between the stream power of flowing water and a geo-mechanical index representing the erosion resistance of the any earth material, ranging from non-cohesive and cohesive soils, to rock formations. In order to apply this method it is necessary to quantify the spatial distribution of the erosive capacity of wall jets, which can then be compared to the erosion resistance of the earth material under consideration. This paper presents a method that can be used to quantify the erosive capacity of wall jets and illustrates that the Erodibility Index Method can be used to quantify the maximum scour depth caused by wall jets.
Rock scour by wall jets downstream of dams can compromise dam safety. The potential for such scour and its extent can be quantified by making use of the Erodibility Index Method (Annandale 1995; 2006). This method is based on a relationship between the stream power of flowing water and a geo-mechanical index representing the erosion resistance of the any earth material, ranging from non-cohesive and cohesive soils, to rock formations. In order to apply this method it is necessary to quantify the spatial distribution of the erosive capacity of wall jets, which can then be compared to the erosion resistance of the earth material under consideration. This paper presents a method that can be used to quantify the erosive capacity of wall jets and illustrates that the Erodibility Index Method can be used to quantify the maximum scour depth caused by wall jets.
Wall Jet Scour in Rock
Annandale, George W. (Autor:in)
International Conference on Scour and Erosion (ICSE-5) 2010 ; 2010 ; San Francisco, California, United States
Scour and Erosion ; 715-723
29.10.2010
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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