Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Failure of Unsaturated Soil Slopes Initiated by Self-weight Loading
Abstract A set of centrifuge model tests is performed to investigate the stability and failure initiation of unsaturated soil slopes. Homogeneous model slopes of reduced size are tested in the enhanced acceleration field of the geotechnical centrifuge. The body stress increases due to increasing self-weight until failure conditions are reached. The pre-failure soil displacement and the propagation of the shear zone is visualized by the digital image correlation technique. The experimental parametric study with granular soil investigates the role of moisture content, soil density, and slope inclination. Observed failure modes can be classified as shallow translational slides of coherent soil blocks of low mobility. The shear zone emerges at regions of local weakness, and is observed to initiate at the toe of the slope or around mid-height of the slope.
Failure of Unsaturated Soil Slopes Initiated by Self-weight Loading
Abstract A set of centrifuge model tests is performed to investigate the stability and failure initiation of unsaturated soil slopes. Homogeneous model slopes of reduced size are tested in the enhanced acceleration field of the geotechnical centrifuge. The body stress increases due to increasing self-weight until failure conditions are reached. The pre-failure soil displacement and the propagation of the shear zone is visualized by the digital image correlation technique. The experimental parametric study with granular soil investigates the role of moisture content, soil density, and slope inclination. Observed failure modes can be classified as shallow translational slides of coherent soil blocks of low mobility. The shear zone emerges at regions of local weakness, and is observed to initiate at the toe of the slope or around mid-height of the slope.
Failure of Unsaturated Soil Slopes Initiated by Self-weight Loading
Idinger, Gregor (Autor:in) / Wu, Wei (Autor:in)
02.06.2018
13 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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