Strength Behaviour of Reconstituted Peat under Different Cone Penetration Rate

Currently, a few ongoing mega projects in Sarawak such as Pan Borneo Highway and second trunk road are constructed and might cross over on peat areas. Due to difficulties in obtaining undisturbed peat samples, the best possible way of doing peat strength test is via cone penetration test (CPT) Accor...

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Main Author:	Dayang Norfaranina, Binti Datu Unoi
Format:	Thesis
Language:	English
Published:	2020
Subjects:	TA Engineering (General) Civil engineering (General)
Online Access:	http://ir.unimas.my/id/eprint/29022/1/Dayang%20Norfaranina%20Binti%20Datu%20Unoi%20ft.pdf
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id	my-unimas-ir.29022
record_format	uketd_dc
spelling	my-unimas-ir.290222023-05-11T01:38:56Z Strength Behaviour of Reconstituted Peat under Different Cone Penetration Rate 2020-02-24 Dayang Norfaranina, Binti Datu Unoi TA Engineering (General). Civil engineering (General) Currently, a few ongoing mega projects in Sarawak such as Pan Borneo Highway and second trunk road are constructed and might cross over on peat areas. Due to difficulties in obtaining undisturbed peat samples, the best possible way of doing peat strength test is via cone penetration test (CPT) According to the standards, at a penetration rate of 20 mm/s for CPT, it is expected to obtain strength in undrained condition for clay soil. However, based on past research, the standard penetration rate might occur at partial drained condition for peat. This thesis presents results from a series of variable penetration rates test on CPT for Kota Samarahan peat to assess the effect of drainage condition on the measured resistance (strength). The data presented in the form of ‘backbone’ curve where a ‘backbone’ curve provides a clear transition of drainage condition (drained, partially drained, undrained). It is found that higher penetration rate of 70 mm/s (for standard cone penetrometer probe) needs to be employed to achieve for undrained condition. The undrained shear strengths obtained from laboratory tests are correlated with the measured penetration resistance. Complimentary laboratory tests are conducted to determine the geotechnical properties of the studied peat. The methods to study consolidation are conventional oedometer and Constant Rate of Strain (CRS) test. Cα/Cc ratio are reported. Overall, the peat properties show that peat in this study is amorphous/sapric and is in the range of what reported in the previous research. Universiti Malaysia Sarawak (UNIMAS) 2020-02 Thesis http://ir.unimas.my/id/eprint/29022/ http://ir.unimas.my/id/eprint/29022/1/Dayang%20Norfaranina%20Binti%20Datu%20Unoi%20ft.pdf text en validuser masters Universiti Malaysia Sarawak (UNIMAS) Faculty of Engineering
institution	Universiti Malaysia Sarawak
collection	UNIMAS Institutional Repository
language	English
topic	TA Engineering (General) Civil engineering (General)
spellingShingle	TA Engineering (General) Civil engineering (General) Dayang Norfaranina, Binti Datu Unoi Strength Behaviour of Reconstituted Peat under Different Cone Penetration Rate
description	Currently, a few ongoing mega projects in Sarawak such as Pan Borneo Highway and second trunk road are constructed and might cross over on peat areas. Due to difficulties in obtaining undisturbed peat samples, the best possible way of doing peat strength test is via cone penetration test (CPT) According to the standards, at a penetration rate of 20 mm/s for CPT, it is expected to obtain strength in undrained condition for clay soil. However, based on past research, the standard penetration rate might occur at partial drained condition for peat. This thesis presents results from a series of variable penetration rates test on CPT for Kota Samarahan peat to assess the effect of drainage condition on the measured resistance (strength). The data presented in the form of ‘backbone’ curve where a ‘backbone’ curve provides a clear transition of drainage condition (drained, partially drained, undrained). It is found that higher penetration rate of 70 mm/s (for standard cone penetrometer probe) needs to be employed to achieve for undrained condition. The undrained shear strengths obtained from laboratory tests are correlated with the measured penetration resistance. Complimentary laboratory tests are conducted to determine the geotechnical properties of the studied peat. The methods to study consolidation are conventional oedometer and Constant Rate of Strain (CRS) test. Cα/Cc ratio are reported. Overall, the peat properties show that peat in this study is amorphous/sapric and is in the range of what reported in the previous research.
format	Thesis
qualification_level	Master's degree
author	Dayang Norfaranina, Binti Datu Unoi
author_facet	Dayang Norfaranina, Binti Datu Unoi
author_sort	Dayang Norfaranina, Binti Datu Unoi
title	Strength Behaviour of Reconstituted Peat under Different Cone Penetration Rate
title_short	Strength Behaviour of Reconstituted Peat under Different Cone Penetration Rate
title_full	Strength Behaviour of Reconstituted Peat under Different Cone Penetration Rate
title_fullStr	Strength Behaviour of Reconstituted Peat under Different Cone Penetration Rate
title_full_unstemmed	Strength Behaviour of Reconstituted Peat under Different Cone Penetration Rate
title_sort	strength behaviour of reconstituted peat under different cone penetration rate
granting_institution	Universiti Malaysia Sarawak (UNIMAS)
granting_department	Faculty of Engineering
publishDate	2020
url	http://ir.unimas.my/id/eprint/29022/1/Dayang%20Norfaranina%20Binti%20Datu%20Unoi%20ft.pdf
_version_	1783728367085813760

Strength Behaviour of Reconstituted Peat under Different Cone Penetration Rate

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