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Dynamic behaviour of Western Johore Peat, Malaysia

Zainorabidin, Adnan and Zolkefle, Siti Nurul Aini (2014) Dynamic behaviour of Western Johore Peat, Malaysia. In: 3rd International Conference On Civil Engineering (CICCEN 2014), 29-30 November 2014, Mauritius.

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Abstract

Most of the past researchers have conducted investigations on the dynamic loading of soft soils such as sand and clay but there are still lacks of information on discovering the behaviour of peat in terms of static and dynamic loadings. Hence, this paper presents the dynamic behaviour of Western Johore peat pertaining to four different effective stresses which are 13kPa, 25kPa, 50kPa and 100kPa by using 1Hz loading frequency. The main objectives of this study is to establish the shear modulus and damping characteristics of Parit Nipah peat and Pontian peat located in West Johore, Malaysia. The Index Properties test, Monotonic Triaxial test and Cyclic Triaxial Test have been performed to determine the parameters required by using one way loading and stress-controlled method. All tests were conducted in the laboratory in Research Centre of Soft Soil, Universiti Tun Hussein Onn Malaysia. The analysis describes that the variation of shear modulus increase as the effective stresses increases from 200kPa to 1200kPa for PNpt and from 100kPa to 1150kPa for POpt. Meanwhile, the damping ratio shows a reduction when effective stresses increases from 0.25 to 0.03 for Parit Nipah peat. Besides, damping ratio of Pontian peat reduce from 0.30 to 0.05. For a better comprehension of the subject, further investigations on dynamic loading of peat soil required to critically identify the consequences on dynamic parameters

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: cyclic loading; peat soil; damping ratio; shear modulus; frequency
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA703-711 Engineering geology. Rock mechanics. Soil mechanics.
Divisions: Faculty of Civil and Environmental Engineering > Department of Infrastructure and Geomatic Engineering
Depositing User: Mrs. Nurhayati Ali
Date Deposited: 29 Mar 2015 06:29
Last Modified: 29 Mar 2015 06:29
URI: http://eprints.uthm.edu.my/id/eprint/6730
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