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Cyclic behaviour of Johor sand

Marto, Aminaton and Tan, Choy Soon and Makhtar, Ahmad Mahir and Jusoh, Siti Norafida (2016) Cyclic behaviour of Johor sand. International Journal of Geomate, 10 (3). pp. 1891-1898. ISSN 21862-982

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Abstract

Series of laboratory testing on the investigation of soil liquefaction using cyclic triaxial test had been carried out by researchers around the world but many of the results are contradictory. Thus, it is important to first determine the condition in which the clean sand is most susceptible to liquefaction, then only the liquefaction susceptibility of sand matrix soils could be compared and discussed under this specific condition. This paper presents the undrained behaviour of Johor sand and sand mixed with fines (kaolin) from cyclic triaxial tests. Stress controlled triaxial test apparatus was used to shear the isotropically consolidated soil samples under undrained two-way cyclic loading until the initiation of liquefaction. The liquefaction was defined based on: (i) excess pore pressure was equal to effective confining pressure or (ii) double amplitude strain of 5 % was reached, whichever was achieved first. The results of two-way cyclic triaxial tests on clean sand showed that besides the cyclic stress ratio, the liquefaction resistance of the sand under undrained loading was proportional to effective consolidation pressure and density index. The Johor sand was more liquefiable at its loose state and under low effective consolidation pressure, when subjected to earthquake loading.

Item Type:Article
Additional Information:Available in SCOPUS
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Civil Engineering
ID Code:69121
Deposited By: Siti Nor Hashidah Zakaria
Deposited On:01 Nov 2017 05:01
Last Modified:28 Nov 2017 12:05

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