Research Article
Jun 1973
Least Cost Method for Sewer Design
Authors: Stephen Walsh, AM.ASCE, and Linfield C. BrownAuthor Affiliations
Publication: Journal of the Environmental Engineering Division
Volume 99, Issue 3
Abstract
Engineers have achieved significant reductions in construction costs of wastewater collection systems by the use of computers. Still greater cost savings can be achieved by improving the method of integrating pipes into a collection system with the technique of dynamic programming. With the method proposed in this paper, the conventional design constraints of minimum ground cover, critical invert elevations and minimum and maximum velocities are used to establish a region of feasible solutions for each pipe. The integration, then, of each pipe into one collection system is achieved by the dynamic programming algorithm. Not only is the least cost design generated but a range of alternative discharge elevations and associated costs are made available to the engineer, allowing him maximum flexibility in exercising his judgment. Solutions of realistic sewer design problems show that the least-cost design is produced by this system.
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Published In
Journal of the Environmental Engineering Division
Volume 99 • Issue 3 • June 1973
Pages: 333 - 345
Copyright
© 1973 American Society of Civil Engineers.
History
Published in print: Jun 1973
Published online: Feb 11, 2021
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Stephen Walsh, AM.ASCE
Systems Engr., Camp Dresser & McKee, Inc., Boston, Mass., USA
Linfield C. Brown
Asst. Prof. of Civ. Engrg., Tufts Univ., Medford, Mass., USA
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.