QUANTITATIVE ASSESSMENT OF THE INFLUENCE OF WATER PRESSURE ON THE RELIABILITY OF WATER-PIPE NETWORKS IN SERVICE

摘要

Making use of the results of many year observations and in-service studies, analyses were performed and generalizations were made regarding the reliability of the water-pipe networks of Brzeg, Klodzko, Olesnica, Opole and two regions of the city of Wroclaw. The contribution of reduced pressure head and reduced daily variations in the forcing pressure at the pumping stations to the rate of pipe failure was quantified. Taking into account the results of water loss analysis for the water-pipe networks under study, the effects of pipe failure were assessed. A correlation was found to occur between water loss, water pipe loading, failure rate and maximal head of the forcing pressure at the pumping station.