Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Assessing Suffusion Susceptibility of Soils by Using Construction Data: Application to a Compacted Till Dam Core
Abstract Suffusion is one of the main internal erosion processes in earth structures and their foundations. The assessment of this phenomenon can be difficult since in-situ geotechnical properties of soils are variable and uncertain. By means of a case study, this paper aims at presenting a general method to assess the suffusion potential of compacted impervious cores of zoned embankment dams. First, the suffusion susceptibility of the compacted layers forming the analysed dam core is estimated from four soil parameters that can be easily measured in situ or in laboratory during construction. Second, the saturated hydraulic conductivity of the compacted layers is evaluated based on the amount of fines content and on available construction data. Moreover, the power dissipated by seepage flow is inferred based on the saturated hydraulic conductivity and simplified fluid boundary conditions. Finally, the combined consideration of erosion resistance index and dissipated energy allows the identification of zones characterized by a relatively larger suffusion potential.
Assessing Suffusion Susceptibility of Soils by Using Construction Data: Application to a Compacted Till Dam Core
Abstract Suffusion is one of the main internal erosion processes in earth structures and their foundations. The assessment of this phenomenon can be difficult since in-situ geotechnical properties of soils are variable and uncertain. By means of a case study, this paper aims at presenting a general method to assess the suffusion potential of compacted impervious cores of zoned embankment dams. First, the suffusion susceptibility of the compacted layers forming the analysed dam core is estimated from four soil parameters that can be easily measured in situ or in laboratory during construction. Second, the saturated hydraulic conductivity of the compacted layers is evaluated based on the amount of fines content and on available construction data. Moreover, the power dissipated by seepage flow is inferred based on the saturated hydraulic conductivity and simplified fluid boundary conditions. Finally, the combined consideration of erosion resistance index and dissipated energy allows the identification of zones characterized by a relatively larger suffusion potential.
Assessing Suffusion Susceptibility of Soils by Using Construction Data: Application to a Compacted Till Dam Core
Zhang, Lingran (Autor:in) / Gelet, Rachel (Autor:in) / Marot, Didier (Autor:in) / Smith, Marc (Autor:in) / Konrad, Jean-Marie (Autor:in)
01.09.2018
12 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
| Taylor & Francis Verlag | 2019
Experimental investigation of suffusion in dam core soils of glacial till
| Online Contents | 2016
Experimental Investigation of Suffusion in Dam Core Soils of Glacial Till
| British Library Online Contents | 2017
Experimental Investigation of Suffusion in Dam Core Soils of Glacial Till
| Online Contents | 2017