Water main replacement planning in water supply systems. Application in water distribution network of the Metropolitan Region of Sao Paulo. / Planejamento para a substituição de tubulações em sistemas de abastecimento de água - aplicação na rede de distribuição de água da Região Metropolitana de São Paulo.

AUTOR(ES)
DATA DE PUBLICAÇÃO

2009

RESUMO

The following study presents a pipes replacement plan for the water distribution system of the Metropolitan Region of Sao Paulo (MRSP), using a geographic information system (GIS), which allowed the relation between the data of the water mains and the information about leakage repairs. Water main groups of the same material were created and, in some cases, of the same installation period, for the definition of yearly replacement rates based on the future breaks forecast and determination of the water mains optimal replacement timing. The results obtained suggest that the water mains average life, show a lower value than the one verified in developed countries. Thus, the water mains year replacement rate, witch should range from 1.25 to 2%, will be higher than the average in developed countries, witch is about 0.5 and 1%, considering that water mains mean age varies between 100 and 200 years.

ASSUNTO(S)

distribuição de água water main replacement tubulações (substituição) water distribution planning

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