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为什么下雨时不得进行闭气试验

更新时间: 2020-11-17 00:00:00     

下雨时不得进行闭气试验是因为水有可能流到管道上,而如果管道有裂隙,水就会堵住这些裂隙,虽然不至于完全堵住,但还是会影响试验时候的压力表的数据。另外闭气试验适用条件是混凝土类的无压管道在回填土前进行的严密性试验,地下水位应低于管外底150mm,环境温度为-15~50℃,以及下雨时不得进行闭气试验。

关键词: 为什么 下雨 不得 进行 试验

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