The effect of tetrahedron framed permeable weirs on river bed stability in a mountainous area under clear water conditions

Abstract A flexible riverbed protection called tetrahedron framed permeable weirs (TFPW) is proposed to protect riverbeds in mountainous areas from scouring. Under clear water conditions, a series of laboratory flume experiments were performed to study the effects of TFPW with different layout types...

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Autores principales:	Jia-mei Wang, Xing-guo Yang, Hong-wei Zhou, Zi-hao Wang, Jia-wen Zhou, Yu-feng Liang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/5160787f54574fd09063493b00096dec
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spelling	oai:doaj.org-article:5160787f54574fd09063493b00096dec2021-12-02T12:30:37ZThe effect of tetrahedron framed permeable weirs on river bed stability in a mountainous area under clear water conditions10.1038/s41598-017-04711-82045-2322https://doaj.org/article/5160787f54574fd09063493b00096dec2017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-04711-8https://doaj.org/toc/2045-2322Abstract A flexible riverbed protection called tetrahedron framed permeable weirs (TFPW) is proposed to protect riverbeds in mountainous areas from scouring. Under clear water conditions, a series of laboratory flume experiments were performed to study the effects of TFPW with different layout types on the stability of riverbeds. The objectives of this paper were to advance understanding of the role that TFPW play in the erosion process of river beds and to optimize the TFPW design for reducing velocity, promoting sediment deposition and good structural stability. Data on velocity distribution and variation, equilibrium bathymetry, flow resistance, bed form characteristics and structural stability were collected and analyzed. The results indicate that (1) with good structural stability, all the TFPW with different layout types had significant effects on the stabilization of the riverbed by reducing velocity, raising the water level, increasing the roughness coefficient, protecting the riverbed from degradation and promoting deposition; and (2) the random Double TFPW with large rates of deceleration, large deposition ranges, and good structural stability, and the paved Single TFPW with small rates of deceleration but large deposition ranges and perfect structural stability, were suitable and optimal for riverbed protection in a clear water channel.Jia-mei WangXing-guo YangHong-wei ZhouZi-hao WangJia-wen ZhouYu-feng LiangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-14 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jia-mei Wang Xing-guo Yang Hong-wei Zhou Zi-hao Wang Jia-wen Zhou Yu-feng Liang The effect of tetrahedron framed permeable weirs on river bed stability in a mountainous area under clear water conditions
description	Abstract A flexible riverbed protection called tetrahedron framed permeable weirs (TFPW) is proposed to protect riverbeds in mountainous areas from scouring. Under clear water conditions, a series of laboratory flume experiments were performed to study the effects of TFPW with different layout types on the stability of riverbeds. The objectives of this paper were to advance understanding of the role that TFPW play in the erosion process of river beds and to optimize the TFPW design for reducing velocity, promoting sediment deposition and good structural stability. Data on velocity distribution and variation, equilibrium bathymetry, flow resistance, bed form characteristics and structural stability were collected and analyzed. The results indicate that (1) with good structural stability, all the TFPW with different layout types had significant effects on the stabilization of the riverbed by reducing velocity, raising the water level, increasing the roughness coefficient, protecting the riverbed from degradation and promoting deposition; and (2) the random Double TFPW with large rates of deceleration, large deposition ranges, and good structural stability, and the paved Single TFPW with small rates of deceleration but large deposition ranges and perfect structural stability, were suitable and optimal for riverbed protection in a clear water channel.
format	article
author	Jia-mei Wang Xing-guo Yang Hong-wei Zhou Zi-hao Wang Jia-wen Zhou Yu-feng Liang
author_facet	Jia-mei Wang Xing-guo Yang Hong-wei Zhou Zi-hao Wang Jia-wen Zhou Yu-feng Liang
author_sort	Jia-mei Wang
title	The effect of tetrahedron framed permeable weirs on river bed stability in a mountainous area under clear water conditions
title_short	The effect of tetrahedron framed permeable weirs on river bed stability in a mountainous area under clear water conditions
title_full	The effect of tetrahedron framed permeable weirs on river bed stability in a mountainous area under clear water conditions
title_fullStr	The effect of tetrahedron framed permeable weirs on river bed stability in a mountainous area under clear water conditions
title_full_unstemmed	The effect of tetrahedron framed permeable weirs on river bed stability in a mountainous area under clear water conditions
title_sort	effect of tetrahedron framed permeable weirs on river bed stability in a mountainous area under clear water conditions
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/5160787f54574fd09063493b00096dec
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The effect of tetrahedron framed permeable weirs on river bed stability in a mountainous area under clear water conditions

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