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67296

INVESTIGATION ON BANK STABILTY IN THE NILE RIVER AT Km 552.4 D.S ASWAN DAM

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Last updated: 25 Dec 2024

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Abstract

Higher current velocities associated with the release of emergency discharges downstream High Aswan Dam may cause degradation in the entire bed of some reaches, particularly in river banks of bend outer curve where many cities and villages are located. Consequently, a severe damage to agricultural properties, urban areas and roads is expected. To overcome such expected damage, velocity profile redistribution is of crucial important to decrease the current values of river bend, protection works against local scour and bank erosion is of crucial important. The purpose of this study is to develop a solution to stop the western bend bank erosion and partial failure in reach at km 552.4 D.S. Aswan Dam. There are two groins perpendicular to the western bank and three big scour holes in the area of about 1200 m long and 100 m width near the western bank along Salam village, 10.5 km D.S Assuit Barrage. Mathematical model was used to simulate the entire reach of 2.8 km on the NileRiver at that area. To improve the flow condition by decreasing the water velocity at the western bank (outer bend), the existing condition during 2008 and four different suggested scenarios were simulated on the model. These scenarios were, removing the located groin, filling the lower part of areas (the scour holes) located at the western part to a level of 40.0 m above MSL, filling the bed and dredging the channel in areas closer to the scour hole until level of 40.0 m above MSL and extending the second groin from 10 m to 60 m length in addition to filling the lower part of scour hole to level of 40.0 m above MSL. The results were compared with the existing condition.

DOI

10.21608/erjm.2011.67296

Keywords

Bank failure, stability, Scour hole, Bank protection, Bend, Sinuosity

Authors

First Name

Samir A. S.

Last Name

Ibrahim

MiddleName

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Affiliation

Hydraulics Research Institute, National Water Research Centre, Egypt.

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Volume

34

Article Issue

4

Related Issue

10165

Issue Date

2011-10-01

Receive Date

2020-01-02

Publish Date

2011-10-01

Page Start

401

Page End

407

Print ISSN

1110-1180

Online ISSN

3009-6944

Link

https://erjm.journals.ekb.eg/article_67296.html

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https://erjm.journals.ekb.eg/service?article_code=67296

Order

11

Type

Original Article

Type Code

1,118

Publication Type

Journal

Publication Title

ERJ. Engineering Research Journal

Publication Link

https://erjm.journals.ekb.eg/

MainTitle

INVESTIGATION ON BANK STABILTY IN THE NILE RIVER AT Km 552.4 D.S ASWAN DAM

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Article

Created At

22 Jan 2023