Assessment of ultimate bearing capacity based on the hoek-brown failure criterion

Thian Lai Goh, Md Selim Reza, Abdul Ghani Rafek, Ailie Sofyiana Serasa, Azimah Hussin, Khai Ern Lee

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The ultimate bearing capacity is an essential requirement in design quantification for shallow foundations especially for structures built on large rock masses. In many engineering projects, structures built on foundation of heavily jointed rock masses may face issues such as instability and sudden catastrophic rock slope failure. Determination of the ultimate bearing capacity (Qult) of foundations resting on rock mass has traditionally been determined by employing several strength criterions. One of the accepted and widely implemented methods is to use the Hoek-Brown failure criterion 2002, where the required parameters are determined from a rock mass classification system, Geological Strength Index (GSI). This paper defines an assessment for ultimate bearing capacity (Qult) based on the Hoek-Brown failure criterion 2002 for a granitic rock slope beneath a 20 m diameter concrete water tank at Bandar Mahkota Cheras, Kajang, Selangor. Based on the Hoek-Brown failure criterion 2002, the ultimate bearing capacity (Qult) of rock mass was 7.91 MPa. The actual stress acting on the rock mass was 0.32 MPa. The assessment showed that the rock mass is safe since the ultimate bearing capacity (Qult) is 24.7 times higher than the actual stress acting on the rock mass.

Original languageEnglish
Pages (from-to)1603-1607
Number of pages5
JournalSains Malaysiana
Volume45
Issue number11
Publication statusPublished - 1 Nov 2016

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bearing capacity
rock
rock mass classification
slope failure
engineering

Keywords

  • Geological strength index
  • Hoek-Brown failure criterion 2002
  • Rock mass
  • Ultimate bearing capacity

ASJC Scopus subject areas

  • General

Cite this

Assessment of ultimate bearing capacity based on the hoek-brown failure criterion. / Goh, Thian Lai; Reza, Md Selim; Rafek, Abdul Ghani; Serasa, Ailie Sofyiana; Hussin, Azimah; Lee, Khai Ern.

In: Sains Malaysiana, Vol. 45, No. 11, 01.11.2016, p. 1603-1607.

Research output: Contribution to journalArticle

Goh, Thian Lai ; Reza, Md Selim ; Rafek, Abdul Ghani ; Serasa, Ailie Sofyiana ; Hussin, Azimah ; Lee, Khai Ern. / Assessment of ultimate bearing capacity based on the hoek-brown failure criterion. In: Sains Malaysiana. 2016 ; Vol. 45, No. 11. pp. 1603-1607.
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