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Title:Advanced methodologies for design of storm sewer systems
Author(s):Yen, Ben Chie; Wenzel, Harry G., Jr.; Mays, Larry W.; Tang, Wilson H
Contributor(s):University of Illinois at Urbana-Champaign
Subject(s):Water resource development--Illinois
Water resources development
Wastewater
Waste water
Cost
Cost analysis
Design-hydraulics
Drainage systems
Dynamic programming
Effluents-waste water
Flood damage
Flood routing
Hydraulic design
Hydraulics
Hydrograph routing
Mathematical models
Methodology
Operations research
Optimization
Probability analysis
Risks
Safety-factor
Sewers
Sewer systems
Storm drains
Storm runoff
Systems analysis
Uncertainties
Urban drainage
Urban runoff
Geographic Coverage:Illinois (state)
Abstract:This report describes the development of a series of computer models capable of determining the diameter, slope and crown elevations of each sewer in a storm drainage system in which the layout and manhole locations are predetermined. The criterion for design decisions is the generation of a least-cost system. The basis for all of the models is the application of discrete differential dynamic programing (DDDP) as the optimization tool. Two important concepts are introduced as optimal model components: hydrograph routing and risks and uncertainties in designs. Three routing procedures are adopted, each with its own advantages. Expected flood damage costs are evaluated through the analysis of numerous risks and uncertainties associated with the design. This analysis permits the estimation of the probability of exceeding the capacity and the corresponding expected assessed damage of any sewer in the system. The expected damage cost is added to the installation cost to obtain the total cost which is then minimized in the DDDP procedure. Two example sewer systems are used as a basis for illustrating different aspects of the various least-cost design models and developing user guidelines.
Issue Date:1976-08
Publisher:University of Illinois at Urbana-Champaign. Water Resources Center
Genre:Report (Grant or Annual)
Type:Text
Language:English
URI:http://hdl.handle.net/2142/90300
Sponsor:U.S. Department of the Interior
U.S. Geological Survey
Rights Information:Copyright 1976 held by the authors
Date Available in IDEALS:2016-06-20


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