Determination of Segari Rock Slope Excavation Technique using Geological Strength Index (GSI)

  • Authors

    • R Roslan
    • RC Omar
    • I.N.Z. Baharuddin
    • Hairin Taha
    • M.M. Fared
    • W.N.S.W. Hashim
    2018-11-30
    https://doi.org/10.14419/ijet.v7i4.35.23114
  • Engineering Properties, Granite, Rock Strength, Uniaxial Compressive Strength, Geological Strength Index.
  • Abstract

    Segari - Ayer Tawar rock materials were generally characterized as slightly weathered (Grade II) to moderately weathered (Grade III).  Laboratory tests such as Brazilian tensile strength and point load strength index including direct shear strength were carried out using collected weathering sample from borehole to assess the rock strength. Hence, index testing was used to predict geological strength index, rock failure criterion from Hoek-Brown and deformation modulus mainly for the classification of rock mass engineering properties.  The relationship between the uniaxial compressive strength and geological strength index of rocks were used in proposing suitable methods for cutting the rock slope.

  • References

    1. [1] ReÅŸat Ulusay (2014). The ISRM Suggested Methods for Rock Characterization, Testing and Monitoring, 2007-2014. 2015, 280 p. 70, Elsevier.

      [2] Brown, E.T. (1981). Rock characterization Testing and Monitoring ISRM Suggested Method. Pergamon Press: Oxford.

      [3] Nazir, R., Momeni, E., Armaghani, D.J., and Mohd Amin, M.F. (2013). Correlation between unconfined compressive strength and indirect tensile strength of limestone rock samples. Electronic Journal of Geotechnical Engineering, vol. 18, no. 1. pp. 1737–1746.

      [4] Karaman, K., KesimaL, A., and Ersoy, H. (2014). A comparative assessment of indirect methods for estimating the uniaxial compressive and tensile strength of rocks. Arabian Journal of Geosciences. DOI 10.1007/s12517- 014-1384-0

      [5] Abigail Hackston and Ernest Rutter (2016). The Mohr–Coulomb criterion for intact rock strength and friction - a re-evaluation and consideration of failure under polyaxial stresses. Solid Earth, 7, 493–508, www.solid-earth.net/7/493/2016/ doi:10.5194/se-7-493-2016

      [6] Hoek, E. (1998). Reliability of Hoek-Brown estimates of rock mass properties and their impact on design. Technical Note, Int. J. Rock Mech. Min. Sci. 35:63-68.

      [7] Hoek, E. (1994). Strength of rock and rock masses. News J. ISRM 2 (2): 4-16.

      [8] Hoek, E. & Brown, E.T. 1997. Practical estimates of rock mass strength. Int. J. Rock Mech. Min. Sci. 34: 1165-1186.

      [9] Hoek E (2007) Practical Rock Engineering. e-book

      [10] Marinos V, Marinos P, Hoek E (2005) The geological strength index: applications and limitations. Bull Eng Geol Environ 64(1):55–65

      [11] Erik Eberhardt (2012). The Hoek–Brown Failure Criterion. Rock Mech Rock Eng (2012) 45:981–988. DOI 10.1007/s00603-012-0276-4.

      [12] Ayberk Kaya, Fikri Bulut and Selçuk Alemdag (2011) Applicability of excavatability classification systems in underground excavations: A case study. Scientific Research and Essays Vol. 6(25), pp. 5331-5341. DOI: 10.5897/SRE11.1343. ISSN 1992-2248, Academic Journals.

  • Downloads

  • How to Cite

    Roslan, R., Omar, R., Baharuddin, I., Taha, H., Fared, M., & Hashim, W. (2018). Determination of Segari Rock Slope Excavation Technique using Geological Strength Index (GSI). International Journal of Engineering & Technology, 7(4.35), 819-822. https://doi.org/10.14419/ijet.v7i4.35.23114

    Received date: 2018-12-03

    Accepted date: 2018-12-03

    Published date: 2018-11-30