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Development and Applications of a Methodology and Computer Algorithms for Long-term Management of Water Distribution Pipe Systems  

Park, Suwan (Department of Civil & Environmental Engineering, Pusan National University)
Publication Information
Journal of Korean Society on Water Environment / v.23, no.3, 2007 , pp. 356-366 More about this Journal
Abstract
In this paper a methodology is developed to prioritize replacement of water distribution pipes according to the economical efficiency of replacement and assess the long-term effects of water main replacement policies on water distribution systems. The methodology is implemented with MATLAB to develop a computer algorithm which is used to apply the methodology to a case study water distribution system. A pipe break prediction model is used to estimate future costs of pipe repair and replacement, and the economically optimal replacement time of a pipe is estimated by obtaining the time at which the present worth of the total costs of repair and replacement is minimum. The equation for estimating the present worth of the total cost is modified to reflect the fact that a pipe can be replaced in between of failure events. The results of the analyses show that about 9.5% of the pipes in the case study system is required to be replaced within the planning horizon. Analyses of the yearly pipe replacement requirements for the case study system are provided along with the compositions of the replacement. The effects of water main replacement policies, for which yearly replacement length scenario and yearly replacement budget scenario are used, during a planning horizon are simulated in terms of the predicted number of pipe failures and the saved repair costs.
Keywords
Long-term effects; Optimal replacement time; Water distribution system; Water main replacement policies;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 남궁은, 2001년도 주요정책추진방향, 제9회 세계 물의 날 기념 '먹는 물과 건강' 세미나집, 국립환경연구원 (2001)
2 American Water Works Association (AWWA), Dawn of the Replacement Era: Reinvesting in Drinking Water Infrastructure, Water Industry Technical Action Fund, Denver, CO, pp. 17-18 (2001)
3 Kleiner, Y. and Rajani, B., Comprehensive review of structural deterioration of water mains: statistical models, Urban Water, 3, pp. 131-150 (2001)   DOI   ScienceOn
4 Malandain J., Le Gauffre P., Miramond M., Organizing A. Decision Support System For Infrastructure Maintenance: Application To Water Supply Systems, Proceedings of the First International Conference on New Information Technologies for Decision-making in Civil Engineering, Montreal, Canada, pp. 1013-1024 (1998)
5 Park, S. and Loganathan, G. V., Optimal Pipe Replacement Analysis with a New Pipe Break Prediction Model, Journal of the Korean Society of Water and Wastewater, 16(6), pp. 710-716 (2002)
6 UtilNets, Reliability-Based Decision Support System for the Maintenance Management of the Underground Network of Utilities, Final Technical Report, Computer Technology Institute (1997)
7 Deb, A. K., Herz, R. K., Hasit, Y. J. and Grablutz, F. M., Quantifying future rehabilitation and replacement needs of water mains, AWWA Research Foundation, Denver (1998)
8 Office of Management and Budget, OMB Circular No. A-94, U.S. Executive Office of the President (1992)
9 박수완, 전환돈, 김정욱, 상수도 주철 배수관로의 파손자료 유형에 따른 판손율 모형화와 수정된 시간척도를 이용한 최적 교체시기의 산정, 한국수자원학회논문집, 40(1), pp. 39-50 (2007)   과학기술학회마을   DOI   ScienceOn
10 American Society of Civil Engineers (ASCE), Creating the 21st century through innovation, American Society of Civil Engineers, Civil Engineering Research Foundation, Report #96-5016.E (1996)
11 Burn, L. S., Tucker, S. N., Rahilly, M., Davis, P., Jarrett, R. and Po, M., Asset planning for water reticulation systemsthe PARMS model, Water science & technology: Water Supply, 3, pp. 55-62 (2003)
12 Rajani, B. and Kleiner, Y., Comprehensive Review of Structural Deterioration of Water Mains: Physically based Models, Urban Water, 3, pp. 151-164 (2001)   DOI   ScienceOn
13 Shamir, U. and Howard, C. D. D., An analytic approach to scheduling pipe replacement, Journal of American Water Works Association, 71(5), pp. 248-258 (1979)   DOI