SPH simulation of structures impacted by tailing debris flow and its application to the buffering effect analysis of debris checking dams
type: Item
instance of: scholarly article
title: SPH simulation of structures impacted by tailing debris flow and its application to the buffering effect analysis of debris checking dams
zbMATH Open document ID: 1459.86010
DOI: 10.1155/2020/9304921
author: Qing-Yun Zeng
author: Jian-Ping Pan
author: Han-Zheng Sun
published in: Mathematical Problems in Engineering
publication date: 2020-07-23T00:00:00Z
review text: Summary: Since the tailing dam fails catastrophically with substantial instantaneous deformation, it is difficult to measure the migration of debris flow caused by the failure of the tailings dam. A simulation model of tailing debris flow based on Smoothed Particle Hydrodynamics (SPH) theory of elastic-plastic constitutive equation has been established by considering the viscoplasticity of mud and the elastic-plastic characteristics of tailing sand to investigate the impact effect of tailing flow on the downstream structures. By comparing the experimental and two different simulation results obtained, it can be concluded that SPH elastic-plastic constitutive model can effectively simulate the accumulation and migration processes of the tailing debris flow, which indicates that the SPH model has good applicability to solve geotechnical large deformation problems of similar tailings flow slide. Then, the verified simulation model developed based on a series of simulations of tailing debris flow propagations was used to determine the momentum reduction on the downstream structure resulting from the presence of a simple checking dam perpendicular to the direction of propagation and to determine the characteristics of stresses applied to this structure in terms of peak impact force and evolution over time to the main flow direction.
Mathematics Subject Classification ID: 86A05
Mathematics Subject Classification ID: 76M28
Mathematics Subject Classification ID: 76T25
Mathematics Subject Classification ID: 65M75
zbMATH DE Number: 7224408
MaRDI profile type: Publication
full work available at URL: https://doi.org/10.1155/2020/9304921
OpenAlex ID: W3040360767
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description: scientific article; zbMATH DE number 7224408