Numerical investigation of 2D trapdoor stability

Shiau, Jim and Mirza Hassan, Mohammad (2017) Numerical investigation of 2D trapdoor stability. In: Third International Conference on Science, Engineering and Environment (SEE-2017), 13-16 Nov 2017, Springfield, Brisbane, Australia.

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This paper investigates numerically the stability of trapdoor problem that is similar to a 2D sinkhole stability analysis. The shear strength reduction technique in the finite difference element software FLAC is used to determine factors of safety. The FLAC results are then verified by comparing with rigorous upper and lower bound limit analysis results using OPTUM G2. Numerical results presented are for various depth ratios in dimensionless forms to establish design charts like in Taylor’s slope stability chart. Examples are provided to demonstrate the use of the design chart and table.

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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: Copyright @ 2017 by The GEOMATE International Society.
Faculty/School / Institute/Centre: Current - Faculty of Health, Engineering and Sciences - School of Civil Engineering and Surveying
Date Deposited: 16 Jan 2019 05:18
Last Modified: 24 Jun 2019 03:15
Uncontrolled Keywords: sinkhole, trapdoor, stability, strength reduction method, FLAC, OPTUM G2, design chart
Fields of Research : 09 Engineering > 0905 Civil Engineering > 090501 Civil Geotechnical Engineering
09 Engineering > 0905 Civil Engineering > 090599 Civil Engineering not elsewhere classified
01 Mathematical Sciences > 0103 Numerical and Computational Mathematics > 010301 Numerical Analysis
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering

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