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Gewählte Master / Diploma Thesis:

Gert Kratzer (2011): Ein Beitrag zum Vergleich kurativer und proaktiver Strategien zur Instandhaltung von Kanalisation.
Master / Diploma Thesis - Institut für Siedlungswasserbau, Industriewasserwirtschaft und Gewässerschutz (SIG), BOKU-Universität für Bodenkultur, pp 117. UB BOKU obvsg

Data Source: ZID Abstracts
The work in hand scrutinizes the context between the maintenance strategy for the servicing, inspection and rehabilitation elected by the operating authority and the damage symptoms occurring in the disposal system. The issue first of all is settled when and as the damages to the sewage system arise. A cause is assigned to the most frequent damage pictures. The classification is carried out according to groups of the causes. The first group condenses all damages which arise because of an unsatisfactory construction procedure. The second group summarizes all damages which result from post-construction adjustment measures. The most important group are damages originating during operation of the sewer system. Following two sewer systems of two municipalities are compared. One community looks after its sewerage curatively, so the system is only maintained when problems appear. The second municipality services and inspects the system regularly which corresponds to a proactive strategy. The first comparison refers to the complete number of damages in the sewer system. The damages of both strategies are compared and enable the assigns to the respective reason. The work in hand shows that the majority of the damages to the sewer system arises from an unsatisfactory construction procedure (> 75%). Only 5 to 10% of the damages originate during the operation. For the comparison of the maintenance strategies there can be seen no significant differences because of the quality and quantity of the available data.

Beurteilende(r): Ertl Thomas
1.Mitwirkender: Plihal Hanns

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