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http://dx.doi.org/10.3741/JKWRA.2005.38.12.1021

Development of Optimal Design Simulation Model for Least Cost Urban Sewer System Considering Risk (I)  

Jang, Suk-Hwan (Dept. Civil Eng., Deajin Univ.)
Park, Sang-Woo (Dept. Civil Eng., Seonam Univ.)
Publication Information
Journal of Korea Water Resources Association / v.38, no.12, 2005 , pp. 1021-1028 More about this Journal
Abstract
This study purpose to develop simulation model of optimal design condition of urban storm sewer system considering risk. Urban Storm Sewer Optimal Design Model(USSOD) can compute pipe capacity, pipe slope, crown elevation, excavation depth, risk and return cost in the condition of design discharge. Rational formula is adopted for design discharge and Manning's formula is used for pipe capacity. Discrete differential dynamic programming(DDDP) technique which is a kind of dynamic programming(DP) is used for optimization and first order second moment approximation method and uncertainty analysis is also for developing model. USSOD is applied to hypothetical drainage basin to test and verify, which resulted economical and efficient design in urban drainage sewer system.
Keywords
urban sewer system; optimization; dynamic programming; return cost;
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