Development of empirical correlation of peak friction angle with surface roughness of discontinuities using tilt test

Ailie Sofyiana Serasa, Thian Lai Goh, Abdul Ghani Rafek, Norbert Simon, Azimah Hussein, Khai Ern Lee, Noraini Surip, Tuan Rusli Mohamed

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

The significant influence of surface roughness of discontinuity surfaces is a quantity that is fundamental to the understanding of shear strength of geological discontinuities. This is due to reason that the shear strength of geological discontinuities greatly influenced the mechanical behavior of a rock mass especially in stability evaluation of tunnel, foundation, and natural slopes. In evaluating the stability of these structures, the study of peak friction angle (Φpeak) of rough discontinuity surfaces has become more prominent seeing that the shear strength is a pivotal factor causing failures. The measurement of peak friction angle however, requires an extensive series of laboratory tests which are both time and cost demanding. With that in mind, this publication presents an approach in the form of an experimentally determined polynomial equation to estimate peak friction angle of limestone discontinuity surfaces by measuring the Joint Roughness Coefficient (JRC) values from tilt tests, and applying the fore mentioned empirical correlation. A total of 1967 tilt tests and JRC measurements were conducted in the laboratory to determine the peak friction angles of rough limestone discontinuity surfaces. A polynomial equation of φpeak = -0.0635JRC2 + 3.95JRC + 25.2 that exhibited 0.99 coefficient of determination (R2) were obtained from the correlation of JRC and peak friction angles. The proposed correlation offers a practical method for estimation of peak friction angles of rough discontinuity surfaces of limestone from measurement of JRC in the field.

Original languageEnglish
Title of host publication2016 UKM FST Postgraduate Colloquium: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2016 Postgraduate Colloquium
PublisherAmerican Institute of Physics Inc.
Volume1784
ISBN (Electronic)9780735414464
DOIs
Publication statusPublished - 17 Nov 2016
Event2016 Postgraduate Colloquium of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology, UKM FST 2016 - Selangor, Malaysia
Duration: 13 Apr 201614 Apr 2016

Other

Other2016 Postgraduate Colloquium of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology, UKM FST 2016
CountryMalaysia
CitySelangor
Period13/4/1614/4/16

Fingerprint

discontinuity
surface roughness
friction
shear strength
limestone
roughness
coefficients
polynomials
tunnels
rocks
slopes
costs
evaluation
estimates

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Serasa, A. S., Goh, T. L., Rafek, A. G., Simon, N., Hussein, A., Lee, K. E., ... Mohamed, T. R. (2016). Development of empirical correlation of peak friction angle with surface roughness of discontinuities using tilt test. In 2016 UKM FST Postgraduate Colloquium: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2016 Postgraduate Colloquium (Vol. 1784). [060033] American Institute of Physics Inc.. https://doi.org/10.1063/1.4966871

Development of empirical correlation of peak friction angle with surface roughness of discontinuities using tilt test. / Serasa, Ailie Sofyiana; Goh, Thian Lai; Rafek, Abdul Ghani; Simon, Norbert; Hussein, Azimah; Lee, Khai Ern; Surip, Noraini; Mohamed, Tuan Rusli.

2016 UKM FST Postgraduate Colloquium: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2016 Postgraduate Colloquium. Vol. 1784 American Institute of Physics Inc., 2016. 060033.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Serasa, AS, Goh, TL, Rafek, AG, Simon, N, Hussein, A, Lee, KE, Surip, N & Mohamed, TR 2016, Development of empirical correlation of peak friction angle with surface roughness of discontinuities using tilt test. in 2016 UKM FST Postgraduate Colloquium: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2016 Postgraduate Colloquium. vol. 1784, 060033, American Institute of Physics Inc., 2016 Postgraduate Colloquium of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology, UKM FST 2016, Selangor, Malaysia, 13/4/16. https://doi.org/10.1063/1.4966871
Serasa AS, Goh TL, Rafek AG, Simon N, Hussein A, Lee KE et al. Development of empirical correlation of peak friction angle with surface roughness of discontinuities using tilt test. In 2016 UKM FST Postgraduate Colloquium: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2016 Postgraduate Colloquium. Vol. 1784. American Institute of Physics Inc. 2016. 060033 https://doi.org/10.1063/1.4966871
Serasa, Ailie Sofyiana ; Goh, Thian Lai ; Rafek, Abdul Ghani ; Simon, Norbert ; Hussein, Azimah ; Lee, Khai Ern ; Surip, Noraini ; Mohamed, Tuan Rusli. / Development of empirical correlation of peak friction angle with surface roughness of discontinuities using tilt test. 2016 UKM FST Postgraduate Colloquium: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2016 Postgraduate Colloquium. Vol. 1784 American Institute of Physics Inc., 2016.
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