Reliability-based design of rock slopes - A new perspective on design robustness

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Title:	Reliability-based design of rock slopes - A new perspective on design robustness
Authors:	黃俊鴻;Wang, Lei;Hwang, Jin Hung;Juang, C. Hsein;Atamturktur, Sez
Contributors:	工學院土木工程學系
Keywords:	Acceptability;Applied sciences;Buildings. Public works;Computation methods. Tables. Charts;Design engineering;Design factors;environmental engineering;Exact sciences and technology;Failure probability;Geotechnics;Optimization;probability;Reliability-based design;Robustness;Rock;Rock slopes;Shear properties;Slopes;Soil mechanics. Rocks mechanics;Structural analysis. Stresses;topographic slope;Uncertainty
Date:	2013-02-28
Issue Date:	2026-04-21 13:33:49 (UTC+8)
Publisher:	Elsevier;Kidlington: Elsevier B.V
Abstract:	摘要： Traditional reliability-based rock slope designs, in which the lowest-cost design is selected from all designs meeting target reliability requirements, are often sensitive to variations in noise factors such as rock shear properties. Consequently, a design that was initially judged acceptable may not satisfy reliability requirements if the variation of rock properties has been greatly underestimated. The authors present a Robust Geotechnical Design (RGD) approach for purposes of addressing this dilemma, by considering the robustness explicitly in the design process. In the context of rock slope design, this proposed RGD approach aims to make the response (i.e., failure probability) of a rock slope system insensitive to, or robust against, the variation of rock shear properties by adjusting design parameters (i.e., such as slope angle and height). Compared to traditional reliability-based design, the RGD approach adds design robustness as one of its design objectives. Thus, multi-objective optimization, considering both cost and robustness, is needed to select optimal designs in the acceptable design space where safety is guaranteed by a constraint on the reliability. In this paper, the concept of the Pareto Front, a collection of optimal designs that reflect the trade-off between cost and robustness, is implemented in the RGD approach. The proposed RGD approach is demonstrated with an example of a rock slope design. ► The paper presents a new design methodology, Robust Geotechnical Design (RGD). ► RGD focuses on achieving an optimal design that is robust against noise factors. ► Multi-objective optimization considering safety, robustness, and cost ► Pareto Front as a design aid for selecting the most suitable design of a rock slope 出版者： Kidlington: Elsevier B.V 出版日期： 2013-02-28 出處： Engineering geology, 2013-02, Vol.154, p.56-63 資源來源： Elsevier ScienceDirect Journals Complete 版權： 2013 Elsevier B.V. 版權： 2014 INIST-CNRS 識別號： ISSN: 0013-7952 識別號： EISSN: 1872-6917 識別號： DOI: 10.1016/j.enggeo.2012.12.004 識別號： CODEN: EGGOAO
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