Empirical correlation of uniaxial compressive strength and primary wave velocity of Malaysian schists

Thian Lai Goh, Abdul Ghani Rafek, Ailie Sofyiana Serasa, Norbert Simon, Khai Ern Lee, Azimah Hussin

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The uniaxial compressive strength (UCS) is one of the important mechanical parameters widely used for design, analysis and modeling in geotechnical engineering. Determination of UCS is critical to reducing risk in various applications which include assessment of excavation and cut slopes in rock mass. However, determination of UCS requires extensive laboratory works, which is time consuming, destructive and rather expensive to conduct. This paper presents an empirical equation to estimate UCS from V<inf>p</inf> for dry schist of Malaysia. Based on a total of 26 ultrasonic and UCS tests that were conducted, an empirical equation to estimate UCS was established. UCS = 3.40 x 10<sup>-11</sup> · V<inf>p</inf><sup>3.3938</sup> with a coefficient of determination (R<sup>2</sup>) of 0.91. This new correlation is non-destructive and an inexpensive method for estimation of UCS of dry Malaysian schist, through measuring the ultrasonic velocity of rock samples in laboratory.

Original languageEnglish
Pages (from-to)1801-1812
Number of pages12
JournalElectronic Journal of Geotechnical Engineering
Volume20
Issue number5
Publication statusPublished - 2015

Fingerprint

compressive strength
schist
Compressive strength
wave velocity
Rocks
Ultrasonic velocity
Geotechnical engineering
geotechnical engineering
Excavation
rock
excavation
Ultrasonics
modeling

Keywords

  • Empirical equationss
  • Schist
  • Uniaxial compressive strength
  • V<inf>p</inf>

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

Cite this

Empirical correlation of uniaxial compressive strength and primary wave velocity of Malaysian schists. / Goh, Thian Lai; Rafek, Abdul Ghani; Serasa, Ailie Sofyiana; Simon, Norbert; Lee, Khai Ern; Hussin, Azimah.

In: Electronic Journal of Geotechnical Engineering, Vol. 20, No. 5, 2015, p. 1801-1812.

Research output: Contribution to journalArticle

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AU - Lee, Khai Ern

AU - Hussin, Azimah

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