Identification of Hydraulic Parameters Influencing the Hydraulic Erodibility of Spillway Flow Channels

The rock mass erosion of dam spillways, a phenomenon involving the interaction between the hydraulic load of water and the capability of the rock mass to resist its destruction, remains a critical safety issue. The erosion resistance of a rock mass can be estimated through several erodibility indice...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Aboubacar Sidiki Koulibaly, Ali Saeidi, Alain Rouleau, Marco Quirion
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	hydraulic erodibility hydraulic jump hydraulic load plunging flow power dissipation rock mass Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500
Acceso en línea:	https://doaj.org/article/d3c769baea33436e89f8650771226c42
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:d3c769baea33436e89f8650771226c42
record_format	dspace
spelling	oai:doaj.org-article:d3c769baea33436e89f8650771226c422021-11-11T19:52:28ZIdentification of Hydraulic Parameters Influencing the Hydraulic Erodibility of Spillway Flow Channels10.3390/w132129502073-4441https://doaj.org/article/d3c769baea33436e89f8650771226c422021-10-01T00:00:00Zhttps://www.mdpi.com/2073-4441/13/21/2950https://doaj.org/toc/2073-4441The rock mass erosion of dam spillways, a phenomenon involving the interaction between the hydraulic load of water and the capability of the rock mass to resist its destruction, remains a critical safety issue. The erosion resistance of a rock mass can be estimated through several erodibility indices, including those of Kirsten, Pells or Bollaert. Several indices have been developed to link rock resistance to the hydraulic parameters of water, i.e., the hydraulic load applied on a rock mass. The developed indices use the average flow velocity, the average shear stress on the bottom of the flow channel, the stress applied to the internal joints of fractured rock mass, the dynamic impulse force, and the power dissipation of water to represent the erosive force of water. From these indices, several methods of assessing hydraulic erosion have been developed, and all use the threshold line concept. Nonetheless, several uncertainties are associated with these methods. This paper presents and discusses the various means of calculating the erosive force of water as a hazard parameter for predicting potential rock erosion. The representativeness of these approaches is also discussed, and we clarify nuances associated with each method. We then provide guidelines for future research aimed at improving estimates of the erosive force of the water within spillway flow channels.Aboubacar Sidiki KoulibalyAli SaeidiAlain RouleauMarco QuirionMDPI AGarticlehydraulic erodibilityhydraulic jumphydraulic loadplunging flowpower dissipationrock massHydraulic engineeringTC1-978Water supply for domestic and industrial purposesTD201-500ENWater, Vol 13, Iss 2950, p 2950 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	hydraulic erodibility hydraulic jump hydraulic load plunging flow power dissipation rock mass Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500
spellingShingle	hydraulic erodibility hydraulic jump hydraulic load plunging flow power dissipation rock mass Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 Aboubacar Sidiki Koulibaly Ali Saeidi Alain Rouleau Marco Quirion Identification of Hydraulic Parameters Influencing the Hydraulic Erodibility of Spillway Flow Channels
description	The rock mass erosion of dam spillways, a phenomenon involving the interaction between the hydraulic load of water and the capability of the rock mass to resist its destruction, remains a critical safety issue. The erosion resistance of a rock mass can be estimated through several erodibility indices, including those of Kirsten, Pells or Bollaert. Several indices have been developed to link rock resistance to the hydraulic parameters of water, i.e., the hydraulic load applied on a rock mass. The developed indices use the average flow velocity, the average shear stress on the bottom of the flow channel, the stress applied to the internal joints of fractured rock mass, the dynamic impulse force, and the power dissipation of water to represent the erosive force of water. From these indices, several methods of assessing hydraulic erosion have been developed, and all use the threshold line concept. Nonetheless, several uncertainties are associated with these methods. This paper presents and discusses the various means of calculating the erosive force of water as a hazard parameter for predicting potential rock erosion. The representativeness of these approaches is also discussed, and we clarify nuances associated with each method. We then provide guidelines for future research aimed at improving estimates of the erosive force of the water within spillway flow channels.
format	article
author	Aboubacar Sidiki Koulibaly Ali Saeidi Alain Rouleau Marco Quirion
author_facet	Aboubacar Sidiki Koulibaly Ali Saeidi Alain Rouleau Marco Quirion
author_sort	Aboubacar Sidiki Koulibaly
title	Identification of Hydraulic Parameters Influencing the Hydraulic Erodibility of Spillway Flow Channels
title_short	Identification of Hydraulic Parameters Influencing the Hydraulic Erodibility of Spillway Flow Channels
title_full	Identification of Hydraulic Parameters Influencing the Hydraulic Erodibility of Spillway Flow Channels
title_fullStr	Identification of Hydraulic Parameters Influencing the Hydraulic Erodibility of Spillway Flow Channels
title_full_unstemmed	Identification of Hydraulic Parameters Influencing the Hydraulic Erodibility of Spillway Flow Channels
title_sort	identification of hydraulic parameters influencing the hydraulic erodibility of spillway flow channels
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/d3c769baea33436e89f8650771226c42
work_keys_str_mv	AT aboubacarsidikikoulibaly identificationofhydraulicparametersinfluencingthehydraulicerodibilityofspillwayflowchannels AT alisaeidi identificationofhydraulicparametersinfluencingthehydraulicerodibilityofspillwayflowchannels AT alainrouleau identificationofhydraulicparametersinfluencingthehydraulicerodibilityofspillwayflowchannels AT marcoquirion identificationofhydraulicparametersinfluencingthehydraulicerodibilityofspillwayflowchannels
_version_	1718431438574977024

Identification of Hydraulic Parameters Influencing the Hydraulic Erodibility of Spillway Flow Channels

Ejemplares similares