Chapter
May 18, 2017
Effect of Soil Mix on Overtopping Erosion
Authors: G. S. Ellithy [email protected], G. Savant [email protected], and J. L. Wibowo [email protected]Author Affiliations
Publication: World Environmental and Water Resources Congress 2017
Abstract
Overtopping is one of the major causes of dam and levee earthen embankment failures. The mechanism of breach caused by overtopping erosion is a complicated process but commonly modelled as either head-cut starting from the toe of the embankment slope progressing upward, or as surface erosion starting from the embankment crest. The two mechanisms are modelled for cohesive and non-cohesive soils, respectively. However, the distinction between the two types of soils from the erodibility aspect is not well established. In this paper, overtopping erosion of different soil mixes is addressed through sediments transport models. The paper presents results from small scale breach experiments on a levee section constructed from four compacted soil mixes of clayey and silty sand with and without fine gravel. Simulation of the small scale tests was performed using two dimensional shallow water (2DSW) hydrodynamic model and a sediment transport library (SEDLIB). The experiment results indicate that for silty sand mixes, erosion start at the crest and progresses downward, while erosion for the clayey sand mixes starts close to the toe and progresses upward. The presence of pea gravel size particles in the mixes slows down the erosion process and time to breach as they do not erode at the same rate as the finer particles. 2DSW-SEDLIB simulation results are presented and compared to the experimental results.
Get full access to this article
View all available purchase options and get full access to this chapter.
Information & Authors
Information
Published In
Copyright
© 2017 American Society of Civil Engineers.
History
Published online: May 18, 2017
Permissions
Request permissions for this article.
Authors
Affiliations
U.S. Army Corps of Engineers, Geotechnical and Structural Laboratory, Engineer Research and Development Center, Vicksburg, MS 39180-6199. E-mail: [email protected]
U.S. Army Corps of Engineers, Coastal and Hydraulic Laboratory, Engineer Research and Development Center, Vicksburg, MS 39180-6199. E-mail: [email protected]
U.S. Army Corps of Engineers, Geotechnical and Structural Laboratory, Engineer Research and Development Center, Vicksburg, MS 39180-6199. E-mail: [email protected]
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.
View Options
Get Access
Access content
Please select your options to get access
Log in/Register
Log in via your institution (Shibboleth)
ASCE Members:
Please log in to see member pricing
Purchase
Save for later Item saved, go to cart Information on ASCE Library Cards
ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Get Access
Access content
Please select your options to get access
Log in/Register
Log in via your institution (Shibboleth)
ASCE Members:
Please log in to see member pricing
Purchase
Save for later Item saved, go to cart Information on ASCE Library Cards
ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.