Saturated and unsaturated stability analysis of slope subjected to rainfall infiltration

This paper presents results of saturated and unsaturated stability analysis of typical residual slopes subjected to rainfall infiltration corresponds to 50 years rainfall return period. The slope angles considered were 45° and 70°. The saturated stability analyses were carried out for original and c...

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Main Authors: Nurly Gofar, Rahardjo, Harianto
Other Authors: Iskandar, I.
Format: Article
Language:English
Published: 2018
Subjects:
Online Access:https://hdl.handle.net/10356/89454
http://hdl.handle.net/10220/46247
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-894542020-03-07T11:43:39Z Saturated and unsaturated stability analysis of slope subjected to rainfall infiltration Nurly Gofar Rahardjo, Harianto Iskandar, I. Ismadji, S. Agustina, T.E. Yani, I. Komariah, L.N. Hasyim, S. School of Civil and Environmental Engineering Saturated and Unsaturated Stability Rainfall Infiltration DRNTU::Engineering::Civil engineering This paper presents results of saturated and unsaturated stability analysis of typical residual slopes subjected to rainfall infiltration corresponds to 50 years rainfall return period. The slope angles considered were 45° and 70°. The saturated stability analyses were carried out for original and critical ground water level commonly considered by practicing engineer. The analyses were conducted using limit equilibrium method. Unsaturated stability analyses used combination of coupled stress–pore-water pressure analysis to evaluate the effect of rainfall infiltration on the deformation and transient pore-water pressure on slope stability. Slope stability analyses were performed at some times during and after rainfall infiltration. Results show that the critical condition for slope made by sandy material was at the end of rainfall while for clayey material was at some specified times after the rainfall ceased. Unsaturated stability analysis on sandy soil gives higher factor of safety because the soil never reached saturation. Transient analysis using unsaturated soil concept could predict more critical condition of delayed failure of slopes made up of clayey soil. Published version 2018-10-08T07:36:25Z 2019-12-06T17:25:52Z 2018-10-08T07:36:25Z 2019-12-06T17:25:52Z 2017 Journal Article Nurly Gofar, & Rahardjo, H. (2017). Saturated and unsaturated stability analysis of slope subjected to rainfall infiltration. MATEC Web of Conferences, 101, 05004-. doi:10.1051/matecconf/201710105004 https://hdl.handle.net/10356/89454 http://hdl.handle.net/10220/46247 10.1051/matecconf/201710105004 en MATEC Web of Conferences © 2017 The Authors, published by EDP Sciences. This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (http://creativecommons.org/licenses/by/4.0/). 5 p. application/pdf
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic Saturated and Unsaturated Stability
Rainfall Infiltration
DRNTU::Engineering::Civil engineering
spellingShingle Saturated and Unsaturated Stability
Rainfall Infiltration
DRNTU::Engineering::Civil engineering
Nurly Gofar
Rahardjo, Harianto
Saturated and unsaturated stability analysis of slope subjected to rainfall infiltration
description This paper presents results of saturated and unsaturated stability analysis of typical residual slopes subjected to rainfall infiltration corresponds to 50 years rainfall return period. The slope angles considered were 45° and 70°. The saturated stability analyses were carried out for original and critical ground water level commonly considered by practicing engineer. The analyses were conducted using limit equilibrium method. Unsaturated stability analyses used combination of coupled stress–pore-water pressure analysis to evaluate the effect of rainfall infiltration on the deformation and transient pore-water pressure on slope stability. Slope stability analyses were performed at some times during and after rainfall infiltration. Results show that the critical condition for slope made by sandy material was at the end of rainfall while for clayey material was at some specified times after the rainfall ceased. Unsaturated stability analysis on sandy soil gives higher factor of safety because the soil never reached saturation. Transient analysis using unsaturated soil concept could predict more critical condition of delayed failure of slopes made up of clayey soil.
author2 Iskandar, I.
author_facet Iskandar, I.
Nurly Gofar
Rahardjo, Harianto
format Article
author Nurly Gofar
Rahardjo, Harianto
author_sort Nurly Gofar
title Saturated and unsaturated stability analysis of slope subjected to rainfall infiltration
title_short Saturated and unsaturated stability analysis of slope subjected to rainfall infiltration
title_full Saturated and unsaturated stability analysis of slope subjected to rainfall infiltration
title_fullStr Saturated and unsaturated stability analysis of slope subjected to rainfall infiltration
title_full_unstemmed Saturated and unsaturated stability analysis of slope subjected to rainfall infiltration
title_sort saturated and unsaturated stability analysis of slope subjected to rainfall infiltration
publishDate 2018
url https://hdl.handle.net/10356/89454
http://hdl.handle.net/10220/46247
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