Role of unsaturated permeability function in seepage analyses

A. Rahimi; H. Rahardjo; E. C. Leong

doi:10.1201/b19248-64

Role of unsaturated permeability function in seepage analyses

A. Rahimi, H. Rahardjo, E. C. Leong

Nanyang Technological University

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

Abstract

Unsaturated permeability function is the key parameter in seepage analyses. The unsaturated permeability function is often estimated from Soil-Water Characteristic Curve (SWCC) by means of estimation models. However, different estimation models result in different unsaturated permeability functions. In this paper, the effect of using different unsaturated permeability functions, as estimated by the different models, on seepage analyses is presented. The different unsaturated permeability functions can affect the results of seepage analyses which in turn may affect the design of earth structures. In this study, a column of residual soil was subjected to typical rainfall conditions in Singapore through numerical modelling. The results of the analyses show that infiltration characteristics of the residual soil column were noticeably affected when different unsaturated permeability functions were used for the same soil.

Original language	English
Title of host publication	Unsaturated Soil Mechanics from Theory to Practice - Proceedings of the 6th Asia-Pacific Conference on Unsaturated Soils
Editors	Zhenghan Chen, Changfu Wei, Dean Sun, Yongfu Xu
Publisher	CRC Press/Balkema
Pages	393-399
Number of pages	7
ISBN (Print)	9781138029217
DOIs	https://doi.org/10.1201/b19248-64
Publication status	Published - 2016
Externally published	Yes
Event	6th Asia-Pacific Conference on Unsaturated Soil Mechanics from Theory to Practice, AP-UNSAT 2015 - Guilin, China Duration: Oct 23 2015 → Oct 26 2015

Publication series

Name	Unsaturated Soil Mechanics from Theory to Practice - Proceedings of the 6th Asia-Pacific Conference on Unsaturated Soils

Conference

Conference	6th Asia-Pacific Conference on Unsaturated Soil Mechanics from Theory to Practice, AP-UNSAT 2015
Country/Territory	China
City	Guilin
Period	10/23/15 → 10/26/15

Bibliographical note

Publisher Copyright:
© 2016 Taylor & Francis Group, London.

ASJC Scopus Subject Areas

Soil Science

Access to Document

10.1201/b19248-64

Cite this

Rahimi, A., Rahardjo, H., & Leong, E. C. (2016). Role of unsaturated permeability function in seepage analyses. In Z. Chen, C. Wei, D. Sun, & Y. Xu (Eds.), Unsaturated Soil Mechanics from Theory to Practice - Proceedings of the 6th Asia-Pacific Conference on Unsaturated Soils (pp. 393-399). (Unsaturated Soil Mechanics from Theory to Practice - Proceedings of the 6th Asia-Pacific Conference on Unsaturated Soils). CRC Press/Balkema. https://doi.org/10.1201/b19248-64

Rahimi, A. ; Rahardjo, H. ; Leong, E. C. / Role of unsaturated permeability function in seepage analyses. Unsaturated Soil Mechanics from Theory to Practice - Proceedings of the 6th Asia-Pacific Conference on Unsaturated Soils. editor / Zhenghan Chen ; Changfu Wei ; Dean Sun ; Yongfu Xu. CRC Press/Balkema, 2016. pp. 393-399 (Unsaturated Soil Mechanics from Theory to Practice - Proceedings of the 6th Asia-Pacific Conference on Unsaturated Soils).

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title = "Role of unsaturated permeability function in seepage analyses",

abstract = "Unsaturated permeability function is the key parameter in seepage analyses. The unsaturated permeability function is often estimated from Soil-Water Characteristic Curve (SWCC) by means of estimation models. However, different estimation models result in different unsaturated permeability functions. In this paper, the effect of using different unsaturated permeability functions, as estimated by the different models, on seepage analyses is presented. The different unsaturated permeability functions can affect the results of seepage analyses which in turn may affect the design of earth structures. In this study, a column of residual soil was subjected to typical rainfall conditions in Singapore through numerical modelling. The results of the analyses show that infiltration characteristics of the residual soil column were noticeably affected when different unsaturated permeability functions were used for the same soil.",

author = "A. Rahimi and H. Rahardjo and Leong, {E. C.}",

note = "Publisher Copyright: {\textcopyright} 2016 Taylor & Francis Group, London.; 6th Asia-Pacific Conference on Unsaturated Soil Mechanics from Theory to Practice, AP-UNSAT 2015 ; Conference date: 23-10-2015 Through 26-10-2015",

year = "2016",

doi = "10.1201/b19248-64",

language = "English",

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series = "Unsaturated Soil Mechanics from Theory to Practice - Proceedings of the 6th Asia-Pacific Conference on Unsaturated Soils",

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Rahimi, A, Rahardjo, H & Leong, EC 2016, Role of unsaturated permeability function in seepage analyses. in Z Chen, C Wei, D Sun & Y Xu (eds), Unsaturated Soil Mechanics from Theory to Practice - Proceedings of the 6th Asia-Pacific Conference on Unsaturated Soils. Unsaturated Soil Mechanics from Theory to Practice - Proceedings of the 6th Asia-Pacific Conference on Unsaturated Soils, CRC Press/Balkema, pp. 393-399, 6th Asia-Pacific Conference on Unsaturated Soil Mechanics from Theory to Practice, AP-UNSAT 2015, Guilin, China, 10/23/15. https://doi.org/10.1201/b19248-64

Role of unsaturated permeability function in seepage analyses. / Rahimi, A.; Rahardjo, H.; Leong, E. C.
Unsaturated Soil Mechanics from Theory to Practice - Proceedings of the 6th Asia-Pacific Conference on Unsaturated Soils. ed. / Zhenghan Chen; Changfu Wei; Dean Sun; Yongfu Xu. CRC Press/Balkema, 2016. p. 393-399 (Unsaturated Soil Mechanics from Theory to Practice - Proceedings of the 6th Asia-Pacific Conference on Unsaturated Soils).

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

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AU - Rahardjo, H.

AU - Leong, E. C.

PY - 2016

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N2 - Unsaturated permeability function is the key parameter in seepage analyses. The unsaturated permeability function is often estimated from Soil-Water Characteristic Curve (SWCC) by means of estimation models. However, different estimation models result in different unsaturated permeability functions. In this paper, the effect of using different unsaturated permeability functions, as estimated by the different models, on seepage analyses is presented. The different unsaturated permeability functions can affect the results of seepage analyses which in turn may affect the design of earth structures. In this study, a column of residual soil was subjected to typical rainfall conditions in Singapore through numerical modelling. The results of the analyses show that infiltration characteristics of the residual soil column were noticeably affected when different unsaturated permeability functions were used for the same soil.

AB - Unsaturated permeability function is the key parameter in seepage analyses. The unsaturated permeability function is often estimated from Soil-Water Characteristic Curve (SWCC) by means of estimation models. However, different estimation models result in different unsaturated permeability functions. In this paper, the effect of using different unsaturated permeability functions, as estimated by the different models, on seepage analyses is presented. The different unsaturated permeability functions can affect the results of seepage analyses which in turn may affect the design of earth structures. In this study, a column of residual soil was subjected to typical rainfall conditions in Singapore through numerical modelling. The results of the analyses show that infiltration characteristics of the residual soil column were noticeably affected when different unsaturated permeability functions were used for the same soil.

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Rahimi A, Rahardjo H, Leong EC. Role of unsaturated permeability function in seepage analyses. In Chen Z, Wei C, Sun D, Xu Y, editors, Unsaturated Soil Mechanics from Theory to Practice - Proceedings of the 6th Asia-Pacific Conference on Unsaturated Soils. CRC Press/Balkema. 2016. p. 393-399. (Unsaturated Soil Mechanics from Theory to Practice - Proceedings of the 6th Asia-Pacific Conference on Unsaturated Soils). doi: 10.1201/b19248-64

Role of unsaturated permeability function in seepage analyses

Abstract

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Bibliographical note

ASJC Scopus Subject Areas

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