| 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 . - 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. |
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