상수관로의 유속계수 설계기준

다국어 초록 (Multilingual Abstract)

In this study, Hazen-Williams C value of pipes in wide waterworks system was estimated and statistically analyzed. Hazen-Williams C value of water pipe was predicted after 20 years of service period. From the results, it was found that C value of water pipe for treated water maintained higher value of 110 after 20 years of installation. Furthermore, it was found that velocity coefficients of steel pipe for less than and more than 20 years of installation were 117.7 and 109.3, respectively. C value of ductile iron pipe for less than and more than 20 years of installation were 118.1 and 114.2, respectively. In this study, it was also found that small value of C is used in the design of water pipe system. Therefore, excessively bigger size of pipe can be determined in the design of water pipe system. From the results of present study, optimum value of C can be used to avoid the oversized design of water pipe system.

참고문헌 (Reference)

1 AWWA, "Water Treatment Plant Design" McGraw-Hill 2012

2 Walski, T. M., "Water Distribution Systems: Simulation and Sizing" Lewis Publishers 1990

3 Jones, G. M., "Pumping Station Design" Butterworth-Heinemann 2008

4 Ministry of Environment, "Optimum management technology for water and wastewater system"

5 AWWA, "Manual M11-Steel Pipe" American Water Works Association 2004

6 JWWA, "Japanese design guideline for water pipe system"

7 Korea Ductile Iron Pipe Association, "Handbook of Ductile Iron Pipe"

8 Kim, J. H, "Development of Rehabilitation and Management Techniques for Old Water Distribution Systems" 3 : 197-205, 1996

9 Ministry of Environment, "Design criteria for water pipe system"

10 KWATER, "Design criteria for water pipe system"