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Failure Mode Analysis of Cemented Sand and Gravel Material Dam

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Cemented sand and gravel (CSG) is an elasto-plastic material, shows an apparent non-linear stress–strain relationship, and shows softening behavior after the stress peak. Based on the experimental results and the evolutional rule of the strength parameters of CSG material, a multi-linear ideal softening model based on the finite difference method was established for studying the mechanical properties of CSG dam, according to the numerical analysis results of a real dam project, the stress of dam with a trapezoid section is mainly compressive stress; the failure of CSG dam primarily refers to the buckling, the failure zone of the dam firstly occurs on the upstream dam surface and the dam toe, then the dam foundation surface, and finally the above zones connected together, thus forming a triangle block separated from the dam foundation. The failure mode of dam has the same trend between simulated and experimental results, the results show clearly that the multi-linear ideal softening model can be used to study safety of this type dam.
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Keywords: CEMENTED SAND AND GRAVEL MATERIAL; FAILURE MODEL; SOFTENING MODEL; STRENGTH PARAMETER

Document Type: Research Article

Publication date: September 1, 2018

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  • Science of Advanced Materials (SAM) is an interdisciplinary peer-reviewed journal consolidating research activities in all aspects of advanced materials in the fields of science, engineering and medicine into a single and unique reference source. SAM provides the means for materials scientists, chemists, physicists, biologists, engineers, ceramicists, metallurgists, theoreticians and technocrats to publish original research articles as reviews with author's photo and short biography, full research articles and communications of important new scientific and technological findings, encompassing the fundamental and applied research in all latest aspects of advanced materials.
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