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...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-10-01
|
| Series: | Water |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4441/13/21/2950 |
| _version_ | 1797511742577704960 |
|---|---|
| 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 |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-03-10T05:49:28Z |
| format | Article |
| id | doaj.art-d3c769baea33436e89f8650771226c42 |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-10T05:49:28Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-d3c769baea33436e89f8650771226c422023-11-22T21:53:06ZengMDPI AGWater2073-44412021-10-011321295010.3390/w13212950Identification of Hydraulic Parameters Influencing the Hydraulic Erodibility of Spillway Flow ChannelsAboubacar Sidiki Koulibaly0Ali Saeidi1Alain Rouleau2Marco Quirion3Département des Sciences Appliquées, Université du Québec à Chicoutimi, 555 Boulevard de l’Université, Chicoutimi, QC G7H 2B1, CanadaDépartement des Sciences Appliquées, Université du Québec à Chicoutimi, 555 Boulevard de l’Université, Chicoutimi, QC G7H 2B1, CanadaDépartement des Sciences Appliquées, Université du Québec à Chicoutimi, 555 Boulevard de l’Université, Chicoutimi, QC G7H 2B1, CanadaHydro-Québec, Unité de Production et d’Expertise en Barrages, 75 Boulevard René-Lévesque Ouest, Montréal, QC H2Z 1A4, CanadaThe 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.https://www.mdpi.com/2073-4441/13/21/2950hydraulic erodibilityhydraulic jumphydraulic loadplunging flowpower dissipationrock mass |
| spellingShingle | Aboubacar Sidiki Koulibaly Ali Saeidi Alain Rouleau Marco Quirion Identification of Hydraulic Parameters Influencing the Hydraulic Erodibility of Spillway Flow Channels Water hydraulic erodibility hydraulic jump hydraulic load plunging flow power dissipation rock mass |
| title | 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_short | 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 |
| topic | hydraulic erodibility hydraulic jump hydraulic load plunging flow power dissipation rock mass |
| url | https://www.mdpi.com/2073-4441/13/21/2950 |
| work_keys_str_mv | AT aboubacarsidikikoulibaly identificationofhydraulicparametersinfluencingthehydraulicerodibilityofspillwayflowchannels AT alisaeidi identificationofhydraulicparametersinfluencingthehydraulicerodibilityofspillwayflowchannels AT alainrouleau identificationofhydraulicparametersinfluencingthehydraulicerodibilityofspillwayflowchannels AT marcoquirion identificationofhydraulicparametersinfluencingthehydraulicerodibilityofspillwayflowchannels |