TY - GEN
T1 - Robust design of geotechnical systems - A new design perspective
AU - Juang, C. Hsein
AU - Wang, Lei
AU - Atamturktur, Sez
PY - 2014
Y1 - 2014
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84896805079&partnerID=8YFLogxK
M3 - 會議論文篇章
AN - SCOPUS:84896805079
SN - 9781138001633
T3 - Geotechnical Safety and Risk IV - Proceedings of the 4th International Symposium on Geotechnical Safety and Risk, ISGSR 2013
SP - 69
EP - 78
BT - Geotechnical Safety and Risk IV - Proceedings of the 4th International Symposium on Geotechnical Safety and Risk, ISGSR 2013
T2 - 4th International Symposium on Geotechnical Safety and Risk, ISGSR 2013
Y2 - 4 December 2013 through 6 December 2013
ER -