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http://dx.doi.org/10.11001/jksww.2014.28.6.699

A study on optimal planning of risk reduction for water suspension in water pipe system using fault tree analysis  

Choi, Tae Ho (K-water Research Institute, Korea Water Resources Corporation)
Kim, A Ri (Dept. of Environmental Engineering, University of Seoul)
Kim, Min Cheol (Dept. of Environmental Engineering, University of Seoul)
Koo, Ja Yong (Dept. of Environmental Engineering, University of Seoul)
Publication Information
Journal of Korean Society of Water and Wastewater / v.28, no.6, 2014 , pp. 699-711 More about this Journal
Abstract
This study was carried out to analyze water suspension in the water supply system through fault tree analysis. And quantitative factors was evaluated to minimize water suspension. Consequently the aim of this study is to build optimal planning by analyzing scenarios for water suspension. Accordingly the fault tree model makes it possible to estimate risks for water suspension, current risks is $92.23m^3/day$. The result of scenario analysis by pipe replacement, risks for water suspension was reduced $7.02m^3/day$ when replacing WD4 pipe. As a result of scenario analysis by water district connections, the amount of risk reduction is maximized when it is connecting to network pipe of D Zone. Therefore, connecting to network pipe for D Zone would be optimal to reduce risk for water suspension.
Keywords
Fault tree analysis; Cohort model; Risk of water suspension; Pipe failure probability;
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