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Determination of Optimal Time to Replace On-S Water Pipeline by Analyzing Water Main Failures and Economical Efficiency  

Kim, Jong-Sin (한국수자원공사 K-water연구원)
Jung, Kwan-Sue (충남대학교 토목공학과)
Bae, Chul-Ho (한국수자원공사 K-water연구원)
Lee, Doo-jin (한국수자원공사 K-water연구원)
Publication Information
Journal of Korean Society of Water and Wastewater / v.23, no.3, 2009 , pp. 279-285 More about this Journal
Abstract
In this study, applied to the industrial water service, it is verified feasibility of break-even analysis method which has not been introduced in Korea. The On-san water pipeline of 7.1km among the Ul-san industrial water service is selected and the optimal replacement time calculated by break-even analysis method is year 2033 to 2044 which will be 53 to 67 years since the pipes were buried. If indirect cost such as the value of lost water and traffic disruption, service interruption, etc. is calculated as 30 and 100% of the direct cost, the financially optimum replacement time is advanced 3 to 9 years. These ways present rational criteria to establish long-term plan for budget and to execute the limited budget efficiently.
Keywords
Pipe failure; Break-even analysis; Optimal replacement time;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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