Effects of internal erosion on levee instability

Koji Nakashima; Jonathan A. Black; Irfan Ullah Khan; Steven Bayton

doi:10.1007/978-981-15-2184-3_124

Effects of internal erosion on levee instability

Koji Nakashima^*
, Jonathan A. Black
, Irfan Ullah Khan
, Steven Bayton

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

Daily precipitation in Japan is currently increasing. River levees are constructed by compacting various natural materials. Internal erosion can be induced by suffusion, in which fines within the soil skeleton are transported to the toe of levee or outside the levee in an accordance with seepage flow. There are very few studies that refer to the effects of internal erosion on macro deformation and the instability of a levee. In this study, modeling tests of a levee were carried out to simulated floods in a 30g centrifugal field. Two types of material were prepared based on Kenny’s diagram, one classified as “stable” and the other as “unstable”. For stable soil, surface erosion could be observed on the landside of the levee. When the flood level was increased to overtop the crest, the levee caused catastrophic failure. Whereas, for unstable soil, tension failure was observed the toe, whereby, catastrophic larger circular slip was able to be confirmed.

Original language	English
Title of host publication	Geotechnics for sustainable infrastructure development: selected articles from the 4th international conference on geotechnics for sustainable infrastructure development
Editors	Phung Duc Long, Nguyen Tien Dung
Publisher	Springer
Pages	951-956
Number of pages	6
ISBN (Electronic)	9789811521843
ISBN (Print)	9789811521867
DOIs	https://doi.org/10.1007/978-981-15-2184-3_124
Publication status	Published - 29 Nov 2019
Externally published	Yes
Event	4th International Conference on Geotechnics for Sustainable Infrastructure Development - Hanoi, Viet Nam Duration: 28 Nov 2019 → 29 Nov 2019

Publication series

Name	Lecture Notes in Civil Engineering
Volume	62
ISSN (Print)	2366-2557
ISSN (Electronic)	2366-2565

Conference

Conference	4th International Conference on Geotechnics for Sustainable Infrastructure Development
Country/Territory	Viet Nam
City	Hanoi
Period	28/11/2019 → 29/11/2019

Bibliographical note

Funding Information:
This research was conducted in the Centre for Energy and Infrastructure Ground Research at the University of Sheffield. The authors would like to express their appreciation to the Centre staff.

Publisher Copyright:
© Springer Nature Singapore Pte Ltd. 2020.

Keywords

Centrifuge modeling
Internal erosion
Suffusion

ASJC Scopus subject areas

Civil and Structural Engineering

Access to Document

10.1007/978-981-15-2184-3_124Licence: Unspecified

Cite this

Nakashima, K., Black, J. A., Khan, I. U., & Bayton, S. (2019). Effects of internal erosion on levee instability. In P. Duc Long, & N. Tien Dung (Eds.), Geotechnics for sustainable infrastructure development: selected articles from the 4th international conference on geotechnics for sustainable infrastructure development (pp. 951-956). (Lecture Notes in Civil Engineering; Vol. 62). Springer. https://doi.org/10.1007/978-981-15-2184-3_124

Nakashima, Koji ; Black, Jonathan A. ; Khan, Irfan Ullah et al. / Effects of internal erosion on levee instability. Geotechnics for sustainable infrastructure development: selected articles from the 4th international conference on geotechnics for sustainable infrastructure development. editor / Phung Duc Long ; Nguyen Tien Dung. Springer, 2019. pp. 951-956 (Lecture Notes in Civil Engineering).

@inproceedings{c54eed336c3c4d059ab8e263efb3647c,

title = "Effects of internal erosion on levee instability",

abstract = "Daily precipitation in Japan is currently increasing. River levees are constructed by compacting various natural materials. Internal erosion can be induced by suffusion, in which fines within the soil skeleton are transported to the toe of levee or outside the levee in an accordance with seepage flow. There are very few studies that refer to the effects of internal erosion on macro deformation and the instability of a levee. In this study, modeling tests of a levee were carried out to simulated floods in a 30g centrifugal field. Two types of material were prepared based on Kenny{\textquoteright}s diagram, one classified as “stable” and the other as “unstable”. For stable soil, surface erosion could be observed on the landside of the levee. When the flood level was increased to overtop the crest, the levee caused catastrophic failure. Whereas, for unstable soil, tension failure was observed the toe, whereby, catastrophic larger circular slip was able to be confirmed.",

keywords = "Centrifuge modeling, Internal erosion, Suffusion",

author = "Koji Nakashima and Black, \{Jonathan A.\} and Khan, \{Irfan Ullah\} and Steven Bayton",

note = "Funding Information: This research was conducted in the Centre for Energy and Infrastructure Ground Research at the University of Sheffield. The authors would like to express their appreciation to the Centre staff. Publisher Copyright: {\textcopyright} Springer Nature Singapore Pte Ltd. 2020.; 4th International Conference on Geotechnics for Sustainable Infrastructure Development ; Conference date: 28-11-2019 Through 29-11-2019",

year = "2019",

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doi = "10.1007/978-981-15-2184-3\_124",

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series = "Lecture Notes in Civil Engineering",

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Nakashima, K, Black, JA, Khan, IU & Bayton, S 2019, Effects of internal erosion on levee instability. in P Duc Long & N Tien Dung (eds), Geotechnics for sustainable infrastructure development: selected articles from the 4th international conference on geotechnics for sustainable infrastructure development. Lecture Notes in Civil Engineering, vol. 62, Springer, pp. 951-956, 4th International Conference on Geotechnics for Sustainable Infrastructure Development, Hanoi, Viet Nam, 28/11/2019. https://doi.org/10.1007/978-981-15-2184-3_124

Effects of internal erosion on levee instability. / Nakashima, Koji; Black, Jonathan A.; Khan, Irfan Ullah et al.
Geotechnics for sustainable infrastructure development: selected articles from the 4th international conference on geotechnics for sustainable infrastructure development. ed. / Phung Duc Long; Nguyen Tien Dung. Springer, 2019. p. 951-956 (Lecture Notes in Civil Engineering; Vol. 62).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Effects of internal erosion on levee instability

AU - Nakashima, Koji

AU - Black, Jonathan A.

AU - Khan, Irfan Ullah

AU - Bayton, Steven

N1 - Funding Information: This research was conducted in the Centre for Energy and Infrastructure Ground Research at the University of Sheffield. The authors would like to express their appreciation to the Centre staff. Publisher Copyright: © Springer Nature Singapore Pte Ltd. 2020.

PY - 2019/11/29

Y1 - 2019/11/29

N2 - Daily precipitation in Japan is currently increasing. River levees are constructed by compacting various natural materials. Internal erosion can be induced by suffusion, in which fines within the soil skeleton are transported to the toe of levee or outside the levee in an accordance with seepage flow. There are very few studies that refer to the effects of internal erosion on macro deformation and the instability of a levee. In this study, modeling tests of a levee were carried out to simulated floods in a 30g centrifugal field. Two types of material were prepared based on Kenny’s diagram, one classified as “stable” and the other as “unstable”. For stable soil, surface erosion could be observed on the landside of the levee. When the flood level was increased to overtop the crest, the levee caused catastrophic failure. Whereas, for unstable soil, tension failure was observed the toe, whereby, catastrophic larger circular slip was able to be confirmed.

AB - Daily precipitation in Japan is currently increasing. River levees are constructed by compacting various natural materials. Internal erosion can be induced by suffusion, in which fines within the soil skeleton are transported to the toe of levee or outside the levee in an accordance with seepage flow. There are very few studies that refer to the effects of internal erosion on macro deformation and the instability of a levee. In this study, modeling tests of a levee were carried out to simulated floods in a 30g centrifugal field. Two types of material were prepared based on Kenny’s diagram, one classified as “stable” and the other as “unstable”. For stable soil, surface erosion could be observed on the landside of the levee. When the flood level was increased to overtop the crest, the levee caused catastrophic failure. Whereas, for unstable soil, tension failure was observed the toe, whereby, catastrophic larger circular slip was able to be confirmed.

KW - Centrifuge modeling

KW - Internal erosion

KW - Suffusion

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DO - 10.1007/978-981-15-2184-3_124

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SN - 9789811521867

T3 - Lecture Notes in Civil Engineering

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BT - Geotechnics for sustainable infrastructure development: selected articles from the 4th international conference on geotechnics for sustainable infrastructure development

A2 - Duc Long, Phung

A2 - Tien Dung, Nguyen

PB - Springer

T2 - 4th International Conference on Geotechnics for Sustainable Infrastructure Development

Y2 - 28 November 2019 through 29 November 2019

ER -

Nakashima K, Black JA, Khan IU, Bayton S. Effects of internal erosion on levee instability. In Duc Long P, Tien Dung N, editors, Geotechnics for sustainable infrastructure development: selected articles from the 4th international conference on geotechnics for sustainable infrastructure development. Springer. 2019. p. 951-956. (Lecture Notes in Civil Engineering). doi: 10.1007/978-981-15-2184-3_124

Effects of internal erosion on levee instability

Abstract

Publication series

Conference

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

Fingerprint

Cite this