Stress and Deformation Property of Geomembrane Surface Barrier for High Rock-fill Dam
Based on the direct shear test results of interface between a composite geomembrane and cushion material, nonlinear elastic, perfectly plastic model was used to describe the interface behaviors. The interface model was incorporated into the Geogrid element of a fast Lagrange analysis of continua in...
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EDP Sciences
2019-01-01
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doaj-d4d1ead9eca34b6eb683f043ad788fe52021-02-02T07:53:55ZengEDP SciencesMATEC Web of Conferences2261-236X2019-01-012750300310.1051/matecconf/201927503003matecconf_acem2019_03003Stress and Deformation Property of Geomembrane Surface Barrier for High Rock-fill DamWu HaiminZhang ZhenShu YimingBased on the direct shear test results of interface between a composite geomembrane and cushion material, nonlinear elastic, perfectly plastic model was used to describe the interface behaviors. The interface model was incorporated into the Geogrid element of a fast Lagrange analysis of continua in three dimensions (FLAC3D) procedure through a user-defined program in the FISH. Then a geomembrane surfaced rock-fill dam on thick pervious foundation was numerically analyzed using the incorporated model. The numerical results showed that only small tension deformation can be found in the most area of geomembrane on the dam surface. However, large tension deformation of geomembrane appeared close to the anchorage in the peripheral zone of the barrier. The anchorage structure of geomembrane in this area should be carefully designed to avoid tension failure of geomembrane.https://www.matec-conferences.org/articles/matecconf/pdf/2019/24/matecconf_acem2019_03003.pdfrock-fill damgeomembrane barriernumerical analysisstress-deformation behavior |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Wu Haimin Zhang Zhen Shu Yiming |
spellingShingle |
Wu Haimin Zhang Zhen Shu Yiming Stress and Deformation Property of Geomembrane Surface Barrier for High Rock-fill Dam MATEC Web of Conferences rock-fill dam geomembrane barrier numerical analysis stress-deformation behavior |
author_facet |
Wu Haimin Zhang Zhen Shu Yiming |
author_sort |
Wu Haimin |
title |
Stress and Deformation Property of Geomembrane Surface Barrier for High Rock-fill Dam |
title_short |
Stress and Deformation Property of Geomembrane Surface Barrier for High Rock-fill Dam |
title_full |
Stress and Deformation Property of Geomembrane Surface Barrier for High Rock-fill Dam |
title_fullStr |
Stress and Deformation Property of Geomembrane Surface Barrier for High Rock-fill Dam |
title_full_unstemmed |
Stress and Deformation Property of Geomembrane Surface Barrier for High Rock-fill Dam |
title_sort |
stress and deformation property of geomembrane surface barrier for high rock-fill dam |
publisher |
EDP Sciences |
series |
MATEC Web of Conferences |
issn |
2261-236X |
publishDate |
2019-01-01 |
description |
Based on the direct shear test results of interface between a composite geomembrane and cushion material, nonlinear elastic, perfectly plastic model was used to describe the interface behaviors. The interface model was incorporated into the Geogrid element of a fast Lagrange analysis of continua in three dimensions (FLAC3D) procedure through a user-defined program in the FISH. Then a geomembrane surfaced rock-fill dam on thick pervious foundation was numerically analyzed using the incorporated model. The numerical results showed that only small tension deformation can be found in the most area of geomembrane on the dam surface. However, large tension deformation of geomembrane appeared close to the anchorage in the peripheral zone of the barrier. The anchorage structure of geomembrane in this area should be carefully designed to avoid tension failure of geomembrane. |
topic |
rock-fill dam geomembrane barrier numerical analysis stress-deformation behavior |
url |
https://www.matec-conferences.org/articles/matecconf/pdf/2019/24/matecconf_acem2019_03003.pdf |
work_keys_str_mv |
AT wuhaimin stressanddeformationpropertyofgeomembranesurfacebarrierforhighrockfilldam AT zhangzhen stressanddeformationpropertyofgeomembranesurfacebarrierforhighrockfilldam AT shuyiming stressanddeformationpropertyofgeomembranesurfacebarrierforhighrockfilldam |
_version_ |
1724298472099676160 |