Numerical Simulation of Operation and Function of Debris Flow Flexible Protection System

Flexible protection systems have been widely used in the prevention and control of geological disasters along traffic lines in recent years, but the current related research mainly focuses on the mechanical response under the impact of rockfall, and there are few related researches on the impact of...

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Bibliographic Details
Published inFangzai Jianzai Gongcheng Xuebao no. 3; p. 606
Main Authors Zhao, Lei, Zhang, Lijun, Yu, Zhixiang, Qi, Xin, Xu, Zuo
Format Journal Article
LanguageChinese
Published Nanjing Zhongguo Zaihai Fangyu Xiehui 01.01.2022
Subjects
Algorithms
Computer simulation
Coupling
Debris flow
Deformation
Detritus
Full scale tests
Geological hazards
Internal forces
Kinetic energy
Mathematical models
Mechanical analysis
Rockfall
Wire rope
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Summary:Flexible protection systems have been widely used in the prevention and control of geological disasters along traffic lines in recent years, but the current related research mainly focuses on the mechanical response under the impact of rockfall, and there are few related researches on the impact of debris flow. The interaction between debris flow and flexible protection system includes two complex mechanical processes, the movement of debris flow and the large impact deformation of the flexible protection system. At present, there is no effective coupling calculation method. Therefore, based on the LS-DYNA program, the ALE method is used, the Drucker-Prager model is used to simulate the motion of debris flow, and a coupling calculation method considering the interaction between debris flow and flexible protection system is established through the fluid-structure coupling algorithm. The effectiveness of the coupling calculation method is verified by comparing with the existing full-scale test data in the field
ISSN:1672-2132