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An analysis of watermain replacement strategies / Lahbib Tamrabet 

Public ISBD Titre : An analysis of watermain replacement strategies : calgary case study Type de document : texte imprimé Auteurs : Lahbib Tamrabet, Auteur ; E. J. Schiller, Directeur de thèse Editeur : University of Ottawa Année de publication : 1989 Importance : 97 f. Présentation : ill. Format : 30 cm. Note générale : Mémoire de Magister : Civil Engineering : Ottawa, University of Ottawa : 1989 Bibliogr. f. 98 - 102. Annexe f. 104 - 125 Langues : Français (fre) Mots-clés : Water  distribution  systems Failures Calgary Water  mains Scheduling  maintenance Corrosion  effects Cleaning  processes Lining  processes Index. décimale : M000589 Résumé : Water distribution maintenance decisions a very difficult multiobjective problem. Deterioration of those systems results primarily in breaks and leaks in pipes and also in a reduction in carrying capacity from tuberculation of the interior pipe wall. Large investments are generally required for replacement and repair of water mains and it thus becomes critical to assess the current and expected future conditions of the system that influence maintenance decisions. The goal of this work is to study the frequency and causes of failures in water distribution systems. Data for this study is taken from the Calgary water mains. This system was chosen because it had readily available data. Statistical models are developed that demonstrate some of the factors leading to the deterioration of the water distribution system. The economic implications of various replacement strategies on the system cost are also examined. A water distribution system represents a major investment for any municipality. Because of the potential health and safety implications, maintaining this system in good condition is extremely important for water utility management. Once a pipe begins to break, its break rate tends to increase exponentially resulting in increased maintenance costs. Therefore, scheduling maintenance and replacement is extremely important from an economic and reliability point of view. In this study, internal corrosion effects, cleaning and lining processes are not taken into consideration. An analysis of watermain replacement strategies : calgary case study [texte imprimé] / Lahbib Tamrabet, Auteur ; E. J. Schiller, Directeur de thèse . - [S.l.] : University of Ottawa, 1989 . - 97 f. : ill. ; 30 cm. Mémoire de Magister : Civil Engineering : Ottawa, University of Ottawa : 1989 Bibliogr. f. 98 - 102. Annexe f. 104 - 125 Langues : Français (fre) Mots-clés : Water  distribution  systems Failures Calgary Water  mains Scheduling  maintenance Corrosion  effects Cleaning  processes Lining  processes Index. décimale : M000589 Résumé : Water distribution maintenance decisions a very difficult multiobjective problem. Deterioration of those systems results primarily in breaks and leaks in pipes and also in a reduction in carrying capacity from tuberculation of the interior pipe wall. Large investments are generally required for replacement and repair of water mains and it thus becomes critical to assess the current and expected future conditions of the system that influence maintenance decisions. The goal of this work is to study the frequency and causes of failures in water distribution systems. Data for this study is taken from the Calgary water mains. This system was chosen because it had readily available data. Statistical models are developed that demonstrate some of the factors leading to the deterioration of the water distribution system. The economic implications of various replacement strategies on the system cost are also examined. A water distribution system represents a major investment for any municipality. Because of the potential health and safety implications, maintaining this system in good condition is extremely important for water utility management. Once a pipe begins to break, its break rate tends to increase exponentially resulting in increased maintenance costs. Therefore, scheduling maintenance and replacement is extremely important from an economic and reliability point of view. In this study, internal corrosion effects, cleaning and lining processes are not taken into consideration.

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité	Spécialité	Etat_Exemplaire
M000589	M000589	Papier	Bibliothèque centrale	Mémoire de Magister	Disponible

Documents numériques

TAMRABET.Lahbib.pdf URL