지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
이용수
초록· 키워드
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In this study, we extracted effective factors of pipe burst from the status data of water asset, operating data of pressure, volume and etc. and 7 years' pipe burst and repair records. The extracted factors were sorted by each attribution and then a statistical analysis was performed to generate a pipe burst probability function using the logistic regression model. As the result, material, diameter, length, laying year, pressure and road width affected to pipe burst significantly. Especially, in case of small diameter, laying year was most effective factor and in case of steel pipe, external loading was main cause of burst, and in case of cast iron, PE, PC, HP pipes, the deterioration of joint was main cause. The other side, as a result of Hosmer-Lemeshow goodness of fit test the models are turned out significant statistically. Also the classification criteria were determined to minimize the total cost from classification errors, when the predicted probability was more than 18% this pipe could have a chance of burst.
목차
등록된 정보가 없습니다.
참고문헌 (10)
참고문헌 신청
Ahn J.C. / 2004 / Predicting water pipe breaks using neural network / Proceeding of JWWA Conference
Kleiner Y / 2001 / comprehensive review of structural deterioration of water mains: statistical models / Urban Water 3:131~150
American Water Works Association / 2008 / Manual of Water Supply Practices M36. Water Audit and Loss Control Programs, 3rd ed
Julian Thornton / 2008 / Water Loss Control Manual Second Edition / MacGrow Hill
J Thornton / 2005 / Progress in practiacal prediction of pressure: leakage, pressure: burst frequency, pressure: consumption realtionship / Leakage 2005 Conference Proceedings
Kleiner Y / 2001 / comprehensive review of structural deterioration of water mains: statistical models / Urban Water 3:131~150
American Water Works Association / 2008 / Manual of Water Supply Practices M36. Water Audit and Loss Control Programs, 3rd ed
Julian Thornton / 2008 / Water Loss Control Manual Second Edition / MacGrow Hill
J Thornton / 2005 / Progress in practiacal prediction of pressure: leakage, pressure: burst frequency, pressure: consumption realtionship / Leakage 2005 Conference Proceedings
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