An experimental study on embankment failure induced by prolonged immersion in floodwater
Prolonged immersion in floodwater is one of the main causes of embankment failure or dam breaks, although failure mechanisms have not been extensively studied. In this study, an embankment model was constructed to investigate the influence of prolonged immersion in floodwater on the failure of an em...
Main Authors: | , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Elsevier
2016-01-01
|
Series: | Water Science and Engineering |
Subjects: | |
Online Access: | http://www.waterjournal.cn:8080/water/EN/abstract/abstract369.shtml |
id |
doaj-17db614cda3945138e085a0f16174e1a |
---|---|
record_format |
Article |
spelling |
doaj-17db614cda3945138e085a0f16174e1a2020-11-25T00:44:51ZengElsevierWater Science and Engineering1674-23702405-81062016-01-01918186An experimental study on embankment failure induced by prolonged immersion in floodwaterYu-long Luo0Cheng Zhang1Min Nie2Mei-li Zhan3Jin-chang Sheng4College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, PR ChinaCollege of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, PR ChinaCollege of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, PR ChinaCollege of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, PR ChinaCollege of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, PR ChinaProlonged immersion in floodwater is one of the main causes of embankment failure or dam breaks, although failure mechanisms have not been extensively studied. In this study, an embankment model was constructed to investigate the influence of prolonged immersion in floodwater on the failure of an embankment. The results indicate that: (1) the phreatic surface gradually rises and negative pore pressures gradually dissipate with the time of prolonged immersion in floodwater, and, finally, a stable and fully saturated state is reached; (2) observable cracks and a heave phenomenon are found near the downstream toe and in the top stratum of the foundation, which are attributed to the large uplift pressure on the interface between the top stratum and the pervious substratum, the tremendous impact effect induced by the rapid rise in water level, and the reduction of shear strength of heavy silt loam. The present study enhances our in-depth knowledge of the mechanisms of embankment failure induced by floodwater, and provides experimental data for validation of mathematical models of the embankment seepage failure.http://www.waterjournal.cn:8080/water/EN/abstract/abstract369.shtmlembankmentfloodwaterseepage failureprolonged immersionheave phenomenon |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Yu-long Luo Cheng Zhang Min Nie Mei-li Zhan Jin-chang Sheng |
spellingShingle |
Yu-long Luo Cheng Zhang Min Nie Mei-li Zhan Jin-chang Sheng An experimental study on embankment failure induced by prolonged immersion in floodwater Water Science and Engineering embankment floodwater seepage failure prolonged immersion heave phenomenon |
author_facet |
Yu-long Luo Cheng Zhang Min Nie Mei-li Zhan Jin-chang Sheng |
author_sort |
Yu-long Luo |
title |
An experimental study on embankment failure induced by prolonged immersion in floodwater |
title_short |
An experimental study on embankment failure induced by prolonged immersion in floodwater |
title_full |
An experimental study on embankment failure induced by prolonged immersion in floodwater |
title_fullStr |
An experimental study on embankment failure induced by prolonged immersion in floodwater |
title_full_unstemmed |
An experimental study on embankment failure induced by prolonged immersion in floodwater |
title_sort |
experimental study on embankment failure induced by prolonged immersion in floodwater |
publisher |
Elsevier |
series |
Water Science and Engineering |
issn |
1674-2370 2405-8106 |
publishDate |
2016-01-01 |
description |
Prolonged immersion in floodwater is one of the main causes of embankment failure or dam breaks, although failure mechanisms have not been extensively studied. In this study, an embankment model was constructed to investigate the influence of prolonged immersion in floodwater on the failure of an embankment. The results indicate that: (1) the phreatic surface gradually rises and negative pore pressures gradually dissipate with the time of prolonged immersion in floodwater, and, finally, a stable and fully saturated state is reached; (2) observable cracks and a heave phenomenon are found near the downstream toe and in the top stratum of the foundation, which are attributed to the large uplift pressure on the interface between the top stratum and the pervious substratum, the tremendous impact effect induced by the rapid rise in water level, and the reduction of shear strength of heavy silt loam. The present study enhances our in-depth knowledge of the mechanisms of embankment failure induced by floodwater, and provides experimental data for validation of mathematical models of the embankment seepage failure. |
topic |
embankment floodwater seepage failure prolonged immersion heave phenomenon |
url |
http://www.waterjournal.cn:8080/water/EN/abstract/abstract369.shtml |
work_keys_str_mv |
AT yulongluo anexperimentalstudyonembankmentfailureinducedbyprolongedimmersioninfloodwater AT chengzhang anexperimentalstudyonembankmentfailureinducedbyprolongedimmersioninfloodwater AT minnie anexperimentalstudyonembankmentfailureinducedbyprolongedimmersioninfloodwater AT meilizhan anexperimentalstudyonembankmentfailureinducedbyprolongedimmersioninfloodwater AT jinchangsheng anexperimentalstudyonembankmentfailureinducedbyprolongedimmersioninfloodwater AT yulongluo experimentalstudyonembankmentfailureinducedbyprolongedimmersioninfloodwater AT chengzhang experimentalstudyonembankmentfailureinducedbyprolongedimmersioninfloodwater AT minnie experimentalstudyonembankmentfailureinducedbyprolongedimmersioninfloodwater AT meilizhan experimentalstudyonembankmentfailureinducedbyprolongedimmersioninfloodwater AT jinchangsheng experimentalstudyonembankmentfailureinducedbyprolongedimmersioninfloodwater |
_version_ |
1725273007899803648 |