Skip to content Skip to navigation
University of Warwick
  • Study
  • |
  • Research
  • |
  • Business
  • |
  • Alumni
  • |
  • News
  • |
  • About

University of Warwick
Publications service & WRAP

Highlight your research

  • WRAP
    • Home
    • Search WRAP
    • Browse by Warwick Author
    • Browse WRAP by Year
    • Browse WRAP by Subject
    • Browse WRAP by Department
    • Browse WRAP by Funder
    • Browse Theses by Department
  • Publications Service
    • Home
    • Search Publications Service
    • Browse by Warwick Author
    • Browse Publications service by Year
    • Browse Publications service by Subject
    • Browse Publications service by Department
    • Browse Publications service by Funder
  • Help & Advice
University of Warwick

The Library

  • Login
  • Admin

Small-scale flume investigation of the performance of step-baffle drainage channels in mitigating debris flows

Tools
- Tools
+ Tools

Li, Shuai, Chen, Xiaoqing, Chen, Jiangang, Tang, Hui, You, Yong, Chen, Huayong, Zhao, Wanyu and Geng, Xueyu (2022) Small-scale flume investigation of the performance of step-baffle drainage channels in mitigating debris flows. Frontiers in Earth Science, 10 . 921716. doi:10.3389/feart.2022.921716 ISSN 2296-6463.

[img]
Preview
PDF
WRAP-Small-scale-flume-investigation-performance-step-baffle-drainage-channels-2022.pdf - Published Version - Requires a PDF viewer.
Available under License Creative Commons Attribution 4.0.

Download (4Mb) | Preview
Official URL: https://doi.org/10.3389/feart.2022.921716

Request Changes to record.

Abstract

Drainage channels are widely used for discharging debris flows into deposition basins or rivers. However, the current drainage channel designs for guiding rapid debris flows downstream do not account for the variations of the gullies’ gradient and debris flow energy. In this study, we evaluated the performance of different step-baffle geometries (square, triangle, and trapezoid) in regulating debris flows. Specifically, their effects on the flow patterns, sediment transport, energy dissipation, and impact pressure are investigated using flume experiments. Results here showed that the square baffles promote highly turbulent flows which in turn result in the highest lift height relative to the triangular and trapezoidal baffles. Maximum sediment interception and highest energy dissipation are obtained using the trapezoidal baffle, whereas the triangular baffle exhibits minimal solid interception and the lowest energy dissipation. Trapezoidal baffles generally experience the greatest impact forces relative to both square and triangular baffles. However, when only the first baffle in the channel is considered, it is the square baffles that experience the largest impact forces. The present work improves the understanding of the effectiveness of step-baffle drainage channels in mitigating debris flows.

Item Type: Journal Article
Subjects: Q Science > QE Geology
T Technology > TC Hydraulic engineering. Ocean engineering
Divisions: Faculty of Science, Engineering and Medicine > Engineering > Engineering
SWORD Depositor: Library Publications Router
Library of Congress Subject Headings (LCSH): Drainage, Channels (Hydraulic engineering), Debris avalanches, Environmental engineering, Flumes -- Models
Journal or Publication Title: Frontiers in Earth Science
Publisher: Frontiers Media S.A.
ISSN: 2296-6463
Official Date: 6 July 2022
Dates:
DateEvent
6 July 2022Published
30 May 2022Accepted
Volume: 10
Article Number: 921716
DOI: 10.3389/feart.2022.921716
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Open Access (Creative Commons)
Date of first compliant deposit: 3 August 2022
Date of first compliant Open Access: 3 August 2022
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
42007270[NSFC] National Natural Science Foundation of Chinahttp://dx.doi.org/10.13039/501100001809
41925030[NSFC] National Natural Science Foundation of Chinahttp://dx.doi.org/10.13039/501100001809
XDA23090403Strategic Priority Research Program of the Chinese Academy of SciencesUNSPECIFIED
2019YJ0009Sichuan Science and Technology ProgramUNSPECIFIED
2022379Youth Innovation Promotion Association of Chinese Academy of SciencesUNSPECIFIED
ZD2019042Helmholtz-OCPC Postdoc ProgramUNSPECIFIED
Related URLs:
  • http://creativecommons.org/licenses/by/4...

Request changes or add full text files to a record

Repository staff actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics

twitter

Email us: wrap@warwick.ac.uk
Contact Details
About Us