Advanced methodologies for design of storm sewer systems

Yen, Ben Chie; Wenzel, Harry G., Jr.; Mays, Larry W.; Tang, Wilson H.

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https://hdl.handle.net/2142/90300 Copy

Description

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

Issue Date

1976-08

Keyword(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.

Publisher

University of Illinois at Urbana-Champaign. Water Resources Center

Type of Resource

text

Language

en

Permalink

http://hdl.handle.net/2142/90300

Sponsor(s)/Grant Number(s)

• U.S. Department of the Interior
• U.S. Geological Survey

Copyright and License Information

Copyright 1976 held by the authors

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