Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/88251
PIRA download icon_1.1View/Download Full Text
Title: Experimental study on impact and deposition behaviours of multiple surges of channelized debris flow on a flexible barrier
Authors: Tan, D 
Yin, J 
Qin, J 
Zhu, Z 
Feng, W 
Issue Date: Jul-2020
Source: Landslides, July 2020, v, 17, no. 7, p. 1577-1589
Abstract: Debris flow normally occurs after heavy rains in mountainous regions with multiple surges. Flexible barriers are installed in torrents to intercept debris flows in an early stage. For the safer design of a flexible barrier installed in the upstream, the forces on the barrier invaded by debris flows should be taken into consideration. An outdoor physical modelling facility was utilized to study the interaction between debris flows and a flexible barrier. Three continuous debris flow impact tests were conducted to investigate the performance of a flexible barrier affected and overflowed by multiple surges of debris flow. A parameter named Initial Block Ratio (IBR) is introduced in this study to describe the initial condition of a flexible barrier filled by the earlier debris flow surges. By analysing the results of these tests, the dynamic response of a flexible barrier under the impact of multiple surges of debris flow is studied, and the influence of IBR on the interaction of debris flow with the flexible barrier is investigated. Based on the findings of the experimental study, a new simple method is proposed to calculate the loads on a filled flexible barrier overflowed by debris flow. By comparing with the measured impact force in the overflow test, this method has a good performance and can be utilized in design analysis with further calibration.
Keywords: Multiple surges of debris flow
Flexible barrier
Physical model
Impact force
Simple method
Publisher: Springer
Journal: Landslides 
ISSN: 1612-510X
EISSN: 1612-5118
DOI: 10.1007/s10346-020-01378-7
Rights: © Springer-Verlag GmbH Germanypart of Springer Nature 2020
This is a post-peer-review, pre-copyedit version of an article published in Landslides. The final authenticated version is available online at: https://dx.doi.org/10.1007/s10346-020-01378-7.
Appears in Collections:Journal/Magazine Article

Files in This Item:
File Description SizeFormat 
a0489-n01.pdfPre-Published version3.37 MBAdobe PDFView/Open
Open Access Information
Status open access
File Version Final Accepted Manuscript
Access
View full-text via PolyU eLinks SFX Query
Show full item record

Page views

85
Last Week
1
Last month
Citations as of Mar 24, 2024

Downloads

36
Citations as of Mar 24, 2024

SCOPUSTM   
Citations

19
Citations as of Mar 29, 2024

WEB OF SCIENCETM
Citations

21
Citations as of Mar 28, 2024

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.