A framework for optimal reliability-based storm sewer network design in flat areas

作者：Moussavi Ali^*; Samani Hossein Mohammad Vali; Haghighi Ali

来源：Canadian Journal of Civil Engineering, 2017, 44(3): 139-150.

DOI：10.1139/cjce-2016-0244

• storm sewer network
• reliability
• optimal design
• adaptive genetic algorithm

This paper presents a framework for the optimal design of a storm sewer network in flat areas where there is insufficient energy from gravity for runoff drainage. A reliability index based on nodal partial flooding is introduced as a performance criterion and utilizes the intrinsic storage capacity of the sewer network. The Storm Water Management Model is used for hydraulic simulation of the sewer system. This model is coupled with an adaptive genetic algorithm to obtain the least-cost design of the network. The model offers numerous design alternatives with various levels of reliability. The model was successfully applied to the Kianpars storm sewer network, a flat district of the city of Ahvaz in Iran. The proposed model is useful for managing the budget and technical limitations of sewer system design in flat areas as well as efficiently deriving an optimum trade-off between design cost and reliability.

• 出版日期2017-3