Robust design of geotechnical systems - A new design perspective

C. Hsein Juang, Lei Wang, Sez Atamturktur

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

This paper presents a new geotechnical design concept, called Robust Geotechnical Design (RGD). The new design methodology seeks to achieve design robustness and economics, in addition to meeting safety requirements. Here, a design is considered robust if the variation in the system response (i.e., failure probability) is insensitive to the statistical characterization of noise factors, such as uncertain geotechnical parameters. It can be shown that when safety requirements are met, cost and robustness are conflicting objectives with a trade-off, meaning that a single best design may be unattainable. In such a case, a multi-objective optimization considering cost and robustness can be performed to obtain a suite of best designs within the solution space in which safety is guaranteed. To this end, the suite of best designs forms the Pareto Front, which is a useful tool to aid in the design decision making within the RGD methodology. The new design methodology is illustrated with examples of spread foundation designs and rock slope designs, through which the significance of the RGD methodology is demonstrated.

Original languageEnglish (US)
Title of host publicationGeotechnical Safety and Risk IV - Proceedings of the 4th International Symposium on Geotechnical Safety and Risk, ISGSR 2013
Pages69-78
Number of pages10
Publication statusPublished - Mar 10 2014
Event4th International Symposium on Geotechnical Safety and Risk, ISGSR 2013 - Hong Kong, Hong Kong
Duration: Dec 4 2013Dec 6 2013

Publication series

NameGeotechnical Safety and Risk IV - Proceedings of the 4th International Symposium on Geotechnical Safety and Risk, ISGSR 2013

Conference

Conference4th International Symposium on Geotechnical Safety and Risk, ISGSR 2013
CountryHong Kong
CityHong Kong
Period12/4/1312/6/13

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All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology
  • Safety, Risk, Reliability and Quality

Cite this

Juang, C. H., Wang, L., & Atamturktur, S. (2014). Robust design of geotechnical systems - A new design perspective. In Geotechnical Safety and Risk IV - Proceedings of the 4th International Symposium on Geotechnical Safety and Risk, ISGSR 2013 (pp. 69-78). (Geotechnical Safety and Risk IV - Proceedings of the 4th International Symposium on Geotechnical Safety and Risk, ISGSR 2013).