IMHE OpenIR  > 山地灾害与地表过程重点实验室
Alternative TitleAn impact model of granular flows on a rigid wall
眭静1; 姜元俊2; 樊晓一1,3; 宋跃2,4; 黄成1
Source Publication岩石力学与工程学报
Contribution Rank2
Other AbstractRetaining walls are often seriously damaged by the dry granular flow resulted from a landslide or a collapse. Laboratory modeling tests were carried out, and an impact force model of the protective structure against the impact of granular flows,for calculating the normal impact force,the tangential impact force and the action point of the normal force,was established based on the granular flow impact process of 64 groups of experiments. The maximum impact force and the residual force obtained from tests were compared with Ashwood model,model and the proposed model. The results show that the impact forces calculated by the developed model and the Adel model are consistent with the experimental results,while the normal impact force calculated by Ashwood model is smaller than the experimental result. Assuming that the base reaction force acts at 2/3 of the deposition length of the dead zone,the action point of the normal force calculated by the new model is closest to the experimental result. Both the maximum normal force and the tangential force increase with increasing the base friction angle, while only the tangential force is obviously influenced by the friction angle of the retaining wall. The research results provide a reference for the disaster mitigation design of landslides or collapse granular flows.
Keyword边坡工程 模型试验 碎屑流 刚性挡墙 冲击力 摩擦角
Indexed ByEI ; CSCD
EI Accession NumberAccession number:20192106960667
Citation statistics
Document Type期刊论文
Corresponding Author樊晓一
Recommended Citation
GB/T 7714
眭静,姜元俊,樊晓一,等. 碎屑流冲击刚性挡墙的力学模型研究[J]. 岩石力学与工程学报,2019,38(1):121-132.
APA 眭静,姜元俊,樊晓一,宋跃,&黄成.(2019).碎屑流冲击刚性挡墙的力学模型研究.岩石力学与工程学报,38(1),121-132.
MLA 眭静,et al."碎屑流冲击刚性挡墙的力学模型研究".岩石力学与工程学报 38.1(2019):121-132.
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