TY - GEN
T1 - Robust design of braced excavations using multiobjective optimization-focusing on prevention of damage to adjacent buildings
AU - Wang, Lei
AU - Luo, Zhe
AU - Khoshnevisan, Sara
AU - Juang, C. Hsein
PY - 2014
Y1 - 2014
N2 - This paper presents a new geotechnical design methodology, referred to herein as robust geotechnical design (RGD), and its application in the braced excavation design in clays. The RGD approach is aimed at optimally selecting the design parameters so that the system response (e.g., the damage probability of the adjacent building caused by excavation) is insensitive to, or robust against, uncertainty in statistics of noise factors. In this paper, the uncertainty in the estimated statistics of noise factors is evaluated using the bootstrapping method, and the variation in the probability of damage is evaluated using the point-estimated method integrated with first-order reliability method. The RGD is realized through a multiobjective optimization, in which all the requirements such as safety, robustness, and cost are explicitly considered. A design example of braced excavation is used to demonstrate the effectiveness and significance of the RGD approach.
AB - This paper presents a new geotechnical design methodology, referred to herein as robust geotechnical design (RGD), and its application in the braced excavation design in clays. The RGD approach is aimed at optimally selecting the design parameters so that the system response (e.g., the damage probability of the adjacent building caused by excavation) is insensitive to, or robust against, uncertainty in statistics of noise factors. In this paper, the uncertainty in the estimated statistics of noise factors is evaluated using the bootstrapping method, and the variation in the probability of damage is evaluated using the point-estimated method integrated with first-order reliability method. The RGD is realized through a multiobjective optimization, in which all the requirements such as safety, robustness, and cost are explicitly considered. A design example of braced excavation is used to demonstrate the effectiveness and significance of the RGD approach.
UR - http://www.scopus.com/inward/record.url?scp=84906831005&partnerID=8YFLogxK
U2 - 10.1061/9780784413272.309
DO - 10.1061/9780784413272.309
M3 - 會議論文篇章
AN - SCOPUS:84906831005
SN - 9780784413272
T3 - Geotechnical Special Publication
SP - 3178
EP - 3187
BT - Geo-Congress 2014 Technical Papers
PB - American Society of Civil Engineers (ASCE)
T2 - 2014 Congress on Geo-Characterization and Modeling for Sustainability, Geo-Congress 2014
Y2 - 23 February 2014 through 26 February 2014
ER -