管道的平均寿命——通常在40到100年之间——是一个高度可变的参数。本文提出了一种基于网络修复历史的方法，该方法允许对泄漏检测和修复程序的启动时间以及更换网络的时间进行估计。由于某些参数难以估计，因此通过灵敏度分析可以方便地评估其对结果的影响。包括11个参考文献、表格、图表。

A pipe's average life--normally between 40 and 100 years--is a highly variable parameter. This article proposes a method based on the history of repairs carried out on a network that allows an estimate to be made of the time of a program for detection and repair of leaks should be started, as well as when the network should be replaced. Because some of the parameters are difficult to estimate, it is convenient to assess their influence on the results via sensitivity analysis. Includes 11 references, tables, figures.