International journal of

ADVANCED AND APPLIED SCIENCES

EISSN: 2313-3724, Print ISSN:2313-626X

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 Volume 5, Issue 7 (July 2018), Pages: 15-26

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 Review Paper

 Title: Measurement of small-strain stiffness of soil in a triaxial setup: Review of local instrumentation

 Author(s): B. W. Isah *, H. Mohamad, I. S. H. Harahap

 Affiliation(s):

 Civil and Environmental Engineering Department, Faculty of Engineering, Universiti Teknologi Petronas, Perak, Malaysia

 https://doi.org/10.21833/ijaas.2018.07.003

 Full Text - PDF          XML

 Abstract:

Accurate determination of soil stiffness at small strain (0.001 % - 0.1 % strain) is very important as it portrayed the stiffness of soil underneath geotechnical structures. To evaluate stiffness at small strain, it is important to achieve a minimum strain measurement accuracy of 10-4 %, this is attained using transducers, strain gauges and sensors which are attached on the specimen locally inside the triaxial cell. Several local strains measuring techniques have emerged with the intention of developing a seamless system which is easy, accurate and less expensive. This study epitomizes the existing types of small strain measuring instrumentation, their trend of development and technology. Those that can measure both axial and radial strain, axial strain alone and radial strain alone are distinguished and described. Also, the accuracy, features, merits, and demerits of each type of device have been discussed accordingly. This paper provides information that enables selection of a suitable device that will best fit a particular application. It is anticipated that the study will inspire further researches in the area. 

 © 2018 The Authors. Published by IASE.

 This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

 Keywords: Triaxial testing, Conventional method, Local measuring device, Small strain

 Article History: Received 22 December 2017, Received in revised form 9 April 2018, Accepted 21 April 2018

 Digital Object Identifier: 

 https://doi.org/10.21833/ijaas.2018.07.003

 Citation:

 Isah BW, Mohamad H, and Harahap ISH (2018). Measurement of small-strain stiffness of soil in a triaxial setup: Review of local instrumentation. International Journal of Advanced and Applied Sciences, 5(7): 15-26

 Permanent Link:

 http://www.science-gate.com/IJAAS/2018/V5I7/Isah.html

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