Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Experimental Investigation of the Erosion Mechanisms of Piping
Piping, or backward erosion, resulting in tunneling under an embankment or foundation, is an important phenomenon that can lead to the failure of the embankment or foundation. We have experimentally investigated the erosion mechanism of this piping phenomenon using a laboratory-scale model. We discovered two types of coupled erosion in the evolution of piping through an analysis of the grain size distribution of the eroded mass. Overall, grain sizes in the eroded mass ranged from 0.1 to 0.5 mm. The 0.1-0.25 mm grains were found to dominate when the erosion was induced by stress release, whereas in the case of clogging, the dominant grain sizes were 0.25-0.5 mm. The first form of erosion caused the tunnel to advance upstream, whereas the second increased the depth of the tunnel; otherwise, the two types of erosion were coupled. Furthermore, the eroded mass throughout the evolution of piping was non-uniform and intermittent.
Experimental Investigation of the Erosion Mechanisms of Piping
Piping, or backward erosion, resulting in tunneling under an embankment or foundation, is an important phenomenon that can lead to the failure of the embankment or foundation. We have experimentally investigated the erosion mechanism of this piping phenomenon using a laboratory-scale model. We discovered two types of coupled erosion in the evolution of piping through an analysis of the grain size distribution of the eroded mass. Overall, grain sizes in the eroded mass ranged from 0.1 to 0.5 mm. The 0.1-0.25 mm grains were found to dominate when the erosion was induced by stress release, whereas in the case of clogging, the dominant grain sizes were 0.25-0.5 mm. The first form of erosion caused the tunnel to advance upstream, whereas the second increased the depth of the tunnel; otherwise, the two types of erosion were coupled. Furthermore, the eroded mass throughout the evolution of piping was non-uniform and intermittent.
Experimental Investigation of the Erosion Mechanisms of Piping
Chen, Jiansheng (Autor:in) / Wang, Shuang (Autor:in) / Liang, Yue (Autor:in) / Wang, Yuan (Autor:in) / Luo, Yulong (Autor:in)
2015
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
BKL:
56.20
Ingenieurgeologie, Bodenmechanik
/
56.20$jIngenieurgeologie$jBodenmechanik
Experimental Investigation of the Erosion Mechanisms of Piping
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Experimental Investigation of the Erosion Mechanisms of Piping
| British Library Online Contents | 2015
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