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A study of the compressibility behavior of peat stabilized by DMM: lab model and FE analysis

Peats are considered as extremely soft, unconsolidated deposits. These soils are geotechnically problematic, due to their high compressibility and low shear strength. Cement is widely used for the stabilization of peat by deep mixing method (DMM). This paper presents the results of the model study o...

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Main Authors: Kim Huat, Bujang, Kazemian, Sina, Prasad, Arun, Barghchi, Maassoumeh
Format: Article
Language:English
Published: Academic Journals 2011
Online Access:http://psasir.upm.edu.my/id/eprint/12873/1/12873.pdf
http://psasir.upm.edu.my/id/eprint/12873/
http://www.academicjournals.org/journal/SRE/article-abstract/98A4E5B17609
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spelling my.upm.eprints.128732018-10-18T04:36:18Z http://psasir.upm.edu.my/id/eprint/12873/ A study of the compressibility behavior of peat stabilized by DMM: lab model and FE analysis Kim Huat, Bujang Kazemian, Sina Prasad, Arun Barghchi, Maassoumeh Peats are considered as extremely soft, unconsolidated deposits. These soils are geotechnically problematic, due to their high compressibility and low shear strength. Cement is widely used for the stabilization of peat by deep mixing method (DMM). This paper presents the results of the model study of compressibility properties of fibrous, hemic and sapric peats, stabilized with columns formed by DMM. The columns were formed of peat, treated with cement in different proportions. Rowe cell tests were performed after curing the samples for 28 days, to evaluate the compressibility characteristics. The results showed that the compressibility properties of peat can be improved significantly by the installation of cement stabilized columns. The amount of cement used to form the column and its diameter were observed to influence the engineering behavior of peats. The effect of cement was the highest on sapric peat among all, due to its physico-chemical properties. The results of Rowe cell were used to simulate the consolidation behavior using finite element software, PLAXIS and the results agree well. The parameters from the simulated model behavior were used to predict the ultimate bearing capacity of peat with full size cement stabilized columns. Academic Journals 2011-01 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/12873/1/12873.pdf Kim Huat, Bujang and Kazemian, Sina and Prasad, Arun and Barghchi, Maassoumeh (2011) A study of the compressibility behavior of peat stabilized by DMM: lab model and FE analysis. Scientific Research and Essays, 6 (1). art. no. 98A4E5B17609. pp. 196-204. ISSN 1992-2248 http://www.academicjournals.org/journal/SRE/article-abstract/98A4E5B17609 10.5897/SRE10.790
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Peats are considered as extremely soft, unconsolidated deposits. These soils are geotechnically problematic, due to their high compressibility and low shear strength. Cement is widely used for the stabilization of peat by deep mixing method (DMM). This paper presents the results of the model study of compressibility properties of fibrous, hemic and sapric peats, stabilized with columns formed by DMM. The columns were formed of peat, treated with cement in different proportions. Rowe cell tests were performed after curing the samples for 28 days, to evaluate the compressibility characteristics. The results showed that the compressibility properties of peat can be improved significantly by the installation of cement stabilized columns. The amount of cement used to form the column and its diameter were observed to influence the engineering behavior of peats. The effect of cement was the highest on sapric peat among all, due to its physico-chemical properties. The results of Rowe cell were used to simulate the consolidation behavior using finite element software, PLAXIS and the results agree well. The parameters from the simulated model behavior were used to predict the ultimate bearing capacity of peat with full size cement stabilized columns.
format Article
author Kim Huat, Bujang
Kazemian, Sina
Prasad, Arun
Barghchi, Maassoumeh
spellingShingle Kim Huat, Bujang
Kazemian, Sina
Prasad, Arun
Barghchi, Maassoumeh
A study of the compressibility behavior of peat stabilized by DMM: lab model and FE analysis
author_facet Kim Huat, Bujang
Kazemian, Sina
Prasad, Arun
Barghchi, Maassoumeh
author_sort Kim Huat, Bujang
title A study of the compressibility behavior of peat stabilized by DMM: lab model and FE analysis
title_short A study of the compressibility behavior of peat stabilized by DMM: lab model and FE analysis
title_full A study of the compressibility behavior of peat stabilized by DMM: lab model and FE analysis
title_fullStr A study of the compressibility behavior of peat stabilized by DMM: lab model and FE analysis
title_full_unstemmed A study of the compressibility behavior of peat stabilized by DMM: lab model and FE analysis
title_sort study of the compressibility behavior of peat stabilized by dmm: lab model and fe analysis
publisher Academic Journals
publishDate 2011
url http://psasir.upm.edu.my/id/eprint/12873/1/12873.pdf
http://psasir.upm.edu.my/id/eprint/12873/
http://www.academicjournals.org/journal/SRE/article-abstract/98A4E5B17609
_version_ 1643825160321499136
score 13.211869

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