Effect of reconstituted method on shear strength properties of peat

Peat is an organic soil contains more than 75% organic content. Shear strength of the soil is one of the most important parameters in engineering design, especially during the pre-construction and post-construction periods, since used to evaluate the foundation and slope stability of soil. Peat n...

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Main Author:	Wahab, Norhaliza
Format:	Thesis
Language:	English English English
Published:	2017
Subjects:	TA703-712 Engineering geology Rock mechanics Soil mechanics.
Online Access:	http://eprints.uthm.edu.my/842/1/24p%20NORHALIZA%20WAHAB.pdf http://eprints.uthm.edu.my/842/2/NORHALIZA%20WAHAB%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/842/3/NORHALIZA%20WAHAB%20WATERMARK.pdf
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spelling	my-uthm-ep.8422021-09-06T04:21:52Z Effect of reconstituted method on shear strength properties of peat 2017-08 Wahab, Norhaliza TA703-712 Engineering geology. Rock mechanics. Soil mechanics. Peat is an organic soil contains more than 75% organic content. Shear strength of the soil is one of the most important parameters in engineering design, especially during the pre-construction and post-construction periods, since used to evaluate the foundation and slope stability of soil. Peat normally known as a soil that has very low shear strength and to determine and understand the shear strength of the peat is difficult in geotechnical engineering because of a few factors such as the origin of the soil, water content, organic matter and the degree of humification. The aim of this study was to determine the effective undrained shear strength properties of reconstituted peat. All the reconstituted peat samples were of the size that passing opening sieve 0.425mm, 1.000mm, 2.360mm and 3.350mm and were preconsolidated at pressures of 50 kPa, 80 kPa and 100 kPa. The relationship deviator stress- strain, σdmax and excess pore water pressure, Δu, shows that in both of reconstituted and undisturbed peat gradually increased when confining pressure, σ’ and pre- consolidation pressure, σc increased. As a conclusion, the undrained shear strength properties result obtained shows that the RS3.350 has higher strength than RS0.425, RS1.000 and RS2.360. However, the entire reconstituted peat sample shows the increment value of the shear strength with the increment of peat size and pre- consolidation pressure. For comparison purposes, the undrained shear strength properties result obtained shows that the reconstituted peat has higher strength than undisturbed peat. The factors that contributed to the higher shear strength properties in this study are segregation of peat size, pre- consolidation pressure, initial void ratio and also the physical properties such as initial water content, fiber content and liquid limit. 2017-08 Thesis http://eprints.uthm.edu.my/842/ http://eprints.uthm.edu.my/842/1/24p%20NORHALIZA%20WAHAB.pdf text en public http://eprints.uthm.edu.my/842/2/NORHALIZA%20WAHAB%20COPYRIGHT%20DECLARATION.pdf text en staffonly http://eprints.uthm.edu.my/842/3/NORHALIZA%20WAHAB%20WATERMARK.pdf text en validuser mphil masters Universiti Tun Hussein Onn Malaysia Fakulti Kejuruteraan Awam dan Alam Bina
institution	Universiti Tun Hussein Onn Malaysia
collection	UTHM Institutional Repository
language	English English English
topic	TA703-712 Engineering geology Rock mechanics Soil mechanics.
spellingShingle	TA703-712 Engineering geology Rock mechanics Soil mechanics. Wahab, Norhaliza Effect of reconstituted method on shear strength properties of peat
description	Peat is an organic soil contains more than 75% organic content. Shear strength of the soil is one of the most important parameters in engineering design, especially during the pre-construction and post-construction periods, since used to evaluate the foundation and slope stability of soil. Peat normally known as a soil that has very low shear strength and to determine and understand the shear strength of the peat is difficult in geotechnical engineering because of a few factors such as the origin of the soil, water content, organic matter and the degree of humification. The aim of this study was to determine the effective undrained shear strength properties of reconstituted peat. All the reconstituted peat samples were of the size that passing opening sieve 0.425mm, 1.000mm, 2.360mm and 3.350mm and were preconsolidated at pressures of 50 kPa, 80 kPa and 100 kPa. The relationship deviator stress- strain, σdmax and excess pore water pressure, Δu, shows that in both of reconstituted and undisturbed peat gradually increased when confining pressure, σ’ and pre- consolidation pressure, σc increased. As a conclusion, the undrained shear strength properties result obtained shows that the RS3.350 has higher strength than RS0.425, RS1.000 and RS2.360. However, the entire reconstituted peat sample shows the increment value of the shear strength with the increment of peat size and pre- consolidation pressure. For comparison purposes, the undrained shear strength properties result obtained shows that the reconstituted peat has higher strength than undisturbed peat. The factors that contributed to the higher shear strength properties in this study are segregation of peat size, pre- consolidation pressure, initial void ratio and also the physical properties such as initial water content, fiber content and liquid limit.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Wahab, Norhaliza
author_facet	Wahab, Norhaliza
author_sort	Wahab, Norhaliza
title	Effect of reconstituted method on shear strength properties of peat
title_short	Effect of reconstituted method on shear strength properties of peat
title_full	Effect of reconstituted method on shear strength properties of peat
title_fullStr	Effect of reconstituted method on shear strength properties of peat
title_full_unstemmed	Effect of reconstituted method on shear strength properties of peat
title_sort	effect of reconstituted method on shear strength properties of peat
granting_institution	Universiti Tun Hussein Onn Malaysia
granting_department	Fakulti Kejuruteraan Awam dan Alam Bina
publishDate	2017
url	http://eprints.uthm.edu.my/842/1/24p%20NORHALIZA%20WAHAB.pdf http://eprints.uthm.edu.my/842/2/NORHALIZA%20WAHAB%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/842/3/NORHALIZA%20WAHAB%20WATERMARK.pdf
_version_	1747830691726360576

Effect of reconstituted method on shear strength properties of peat

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