Linked simulation-optimization model for optimum hydraulic design of water retaining structures constructed on permeable soils

Al-Juboori, Muqdad, and Datta, Bithin (2018) Linked simulation-optimization model for optimum hydraulic design of water retaining structures constructed on permeable soils. International Journal of GEOMATE, 14 (44). pp. 39-46.

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View at Publisher Website: https://doi.org/10.21660/2018.44.7229
 
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Abstract

Hydraulic Water Retaining Structures (HWRS), such as dams, weirs and regulators are important projects and necessary for water management. Seepage analysis under HWRS substantially influences the design of HWRS. One of the biggest challenges in design of HWRS is to determine the accurate seepage characteristics with complex flow conditions, and simultaneously to find the optimum design considering safety and cost. Therefore, this study concentrates on developing a linked simulation-optimization (S-O) model for non-homogenous anisotropic soil properties. This is achieved via linking the numerical seepage simulation (Geo-Studio/SEEPW) with the Genetic Algorithm (GA) evolutionary optimization solver. Since, a direct linking of numerical model with optimization model is computationally expensive and time consuming, accurate surrogate models are integrated instead of a numerical simulation model within the S-O model. A Support vector machine (SVM) based surrogate model is linked with the optimization model to achieve the optimum hydraulic design of HWRS. The seepage characteristics of optimum design obtained by S-O are evaluated by comparing these with the numerical seepage modeling (SEEPW) solutions. The comparison, in general, shows good agreements. Accordingly, the S-O methodology is potentially applicable for providing safe, efficient and economical design of HWRS constructed on a complex seepage flow domain.

Item ID: 52708
Item Type: Article (Research - C1)
ISSN: 2186-2990
Keywords: support vector machine, genetic algorithm, seepage modeling, hydraulic structures design
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Presented at the 7th International Conference on Geotechnique, Construction Materials and Environment, 21-24 November 2017, Mie, Japan.

Date Deposited: 07 Mar 2018 00:46
FoR Codes: 09 ENGINEERING > 0905 Civil Engineering > 090501 Civil Geotechnical Engineering @ 100%
SEO Codes: 87 CONSTRUCTION > 8701 Construction Planning > 870101 Civil Construction Planning @ 100%
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