Effects of core characteristics on seepage through earth dams

In this research, SEEP2D and SEEP/W numerical models are used to simulate seepage through earth dams with internal cores. In order to evaluate the two models' performance, they were compared in cases with no, vertical, and wedge-shaped cores. SEEP/W was then used to study further cases due to i...

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Autores principales:	Allaa O. Abdel-Kawy, Nahla M. AboulAtta, Doaa A. El-Molla
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	earth dam with core hydraulic structures phreatic line seepage seep/w model seep2d model Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/6facf82a25f945518fbc9838f9cda81a
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id	oai:doaj.org-article:6facf82a25f945518fbc9838f9cda81a
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spelling	oai:doaj.org-article:6facf82a25f945518fbc9838f9cda81a2021-11-05T21:17:00ZEffects of core characteristics on seepage through earth dams1751-231X10.2166/wpt.2021.053https://doaj.org/article/6facf82a25f945518fbc9838f9cda81a2021-10-01T00:00:00Zhttp://wpt.iwaponline.com/content/16/4/1248https://doaj.org/toc/1751-231XIn this research, SEEP2D and SEEP/W numerical models are used to simulate seepage through earth dams with internal cores. In order to evaluate the two models' performance, they were compared in cases with no, vertical, and wedge-shaped cores. SEEP/W was then used to study further cases due to its accuracy in drawing the phreatic line within the core zone. The effect of the core's characteristics on the amount of discharge, and the phreatic line's levels at the core's upstream and downstream faces were investigated. Four core types – vertical, wedge-shaped, upstream inclined, and downstream inclined – were considered. Different hydraulic conductivities, upper widths, and core slopes were also evaluated. The wedge-shaped core is the most effective of those investigated in reducing seepage discharge and the phreatic line's level at the core's downstream face, the vertical core came second. Design equations are provided for all the core shapes considered in the study. HIGHLIGHTS Compares the performance of SEEP2D and SEEP/W numerical models in simulating earth dams with internal cores.; Evaluates the most effective earth dam core shape.; Covers downstream inclined cores, which have not been considered previously in the literature.; Investigates the effect of core characteristics on seepage discharge and the phreatic line.; Suggests design equations for the core types studied.;Allaa O. Abdel-KawyNahla M. AboulAttaDoaa A. El-MollaIWA Publishingarticleearth dam with corehydraulic structuresphreatic lineseepageseep/w modelseep2d modelEnvironmental technology. Sanitary engineeringTD1-1066ENWater Practice and Technology, Vol 16, Iss 4, Pp 1248-1264 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	earth dam with core hydraulic structures phreatic line seepage seep/w model seep2d model Environmental technology. Sanitary engineering TD1-1066
spellingShingle	earth dam with core hydraulic structures phreatic line seepage seep/w model seep2d model Environmental technology. Sanitary engineering TD1-1066 Allaa O. Abdel-Kawy Nahla M. AboulAtta Doaa A. El-Molla Effects of core characteristics on seepage through earth dams
description	In this research, SEEP2D and SEEP/W numerical models are used to simulate seepage through earth dams with internal cores. In order to evaluate the two models' performance, they were compared in cases with no, vertical, and wedge-shaped cores. SEEP/W was then used to study further cases due to its accuracy in drawing the phreatic line within the core zone. The effect of the core's characteristics on the amount of discharge, and the phreatic line's levels at the core's upstream and downstream faces were investigated. Four core types – vertical, wedge-shaped, upstream inclined, and downstream inclined – were considered. Different hydraulic conductivities, upper widths, and core slopes were also evaluated. The wedge-shaped core is the most effective of those investigated in reducing seepage discharge and the phreatic line's level at the core's downstream face, the vertical core came second. Design equations are provided for all the core shapes considered in the study. HIGHLIGHTS Compares the performance of SEEP2D and SEEP/W numerical models in simulating earth dams with internal cores.; Evaluates the most effective earth dam core shape.; Covers downstream inclined cores, which have not been considered previously in the literature.; Investigates the effect of core characteristics on seepage discharge and the phreatic line.; Suggests design equations for the core types studied.;
format	article
author	Allaa O. Abdel-Kawy Nahla M. AboulAtta Doaa A. El-Molla
author_facet	Allaa O. Abdel-Kawy Nahla M. AboulAtta Doaa A. El-Molla
author_sort	Allaa O. Abdel-Kawy
title	Effects of core characteristics on seepage through earth dams
title_short	Effects of core characteristics on seepage through earth dams
title_full	Effects of core characteristics on seepage through earth dams
title_fullStr	Effects of core characteristics on seepage through earth dams
title_full_unstemmed	Effects of core characteristics on seepage through earth dams
title_sort	effects of core characteristics on seepage through earth dams
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/6facf82a25f945518fbc9838f9cda81a
work_keys_str_mv	AT allaaoabdelkawy effectsofcorecharacteristicsonseepagethroughearthdams AT nahlamaboulatta effectsofcorecharacteristicsonseepagethroughearthdams AT doaaaelmolla effectsofcorecharacteristicsonseepagethroughearthdams
_version_	1718443986502287360

Effects of core characteristics on seepage through earth dams

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