A REVISIT TO NICOLL HIGHWAY EXCAVATION IN SINGAPORE

Authors

  • Samal Hama Salih School of Civil Engineering and Surveying, University of Southern Queensland, Australia
  • Mohammad Mirza Hassan School of Civil Engineering and Surveying, University of Southern Queensland, Australia
  • Jim Shiau School of Civil Engineering and Surveying, University of Southern Queensland, Australia
  • Zakaria Hossain Faculty of Bioresources, Mie University, Tsu, Japan

Keywords:

FLAC, Untrained analysis, Nicoll Highway, Deep braced excavation

Abstract

This paper demonstrates the use of explicit finite difference program FLAC to numerically
simulate staged braced excavation involving various stages of excavation and strutting. The short term
undrained condition is considered in the analyses. A FISH script is developed, with automatic mesh
generation capacity, to study the behavior of wall deformation and ground settlement during the stages of
construction. The numerical model is developed using the case study of Nicoll Highway in Singapore. Both
the geotechnical design and the causes of failure of the Nicoll Highway excavation are re-visited through
extensive comparisons with existing published data. It is considered as a successful development with the
main purpose in mind to develop a numerical model for the analysis of staged excavation in the construction
of underground basements. The success of the development is to be used in assisting other design projects in
the future.

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Published

2018-02-27

How to Cite

Samal Hama Salih, Mohammad Mirza Hassan, Jim Shiau, & Zakaria Hossain. (2018). A REVISIT TO NICOLL HIGHWAY EXCAVATION IN SINGAPORE. GEOMATE Journal, 14(42), 90–96. Retrieved from https://geomatejournal.com/geomate/article/view/765

Issue

Vol. 14 No. 42 (2018): February 2018

Section

Articles

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