闭水试验

闭水试验和闭气试验是无压管道进行严密性试验最常采用的两种试验方法。

Two commonly used methods of pressurization test of pipelines with free-surface in best common are close water test and close gas test .

经在市政污水主干管工程中的实际应用，介绍了使用中的注意点：防腐蚀，管材的进场质检，基坑开挖、管道基础和安装，管道的闭水试验。

Some points are emphasized during application , i.e. corrosion resistance , inspection of pipes on delivery to the site , excavation of foundation pits , foundation and installation of pipelines and watertight test .

本文利通过对无压管道闭气和闭水试验的数值模拟，对闭气和闭水试验时的渗漏规律有了进一步的认识，为今后无压管道的闭水和闭气试验提供一定的参考。

We have further knowledge in the leakage rule according to the numerical simulation on close water test and close gas test of pipes with free-surface , which will provide useful reference for close water test and close gas test of pipes with free-surface in the future .

总结和介绍了在清水池的设计和施工中应注意的几个问题，包括：种类和适用范围、池顶荷载、基坑支护、防水设计、后浇带设置、闭水试验等。

This paper sums up and introduces some notable problems existing in the design and construction of clean water tank , including its kinds , suitable scopes , loads on tank roof , shoring of trench , waterproof design , establishment of post-casting band , closed-water test , etc.

为将闭水试验改成闭气试验，通过对比闭水试验与闭气试验定量数学模型，推导出了两者流量之间的换算关系，为在实际生产中运用闭气试验提供了坚实的理论基础。

To change the closed water test into close air test , by comparing the quantitative mathematical model for closed water test with the quantitative mathematical model for closed air test , the relations between the mathematical model of air test and the one of water test were deduced .

本文对顶管施工后的渗漏及其危害性进行分析，指出了当前普遍采用的闭水试验验收方法不适合高水位软土地区顶管施工，提出了相应解决办法。

The paper analyzes the leakage and risks of throbbing pipe and points out that the present method of water tightness test is not suitable for the throbbing pipe construction in the soft - soil and high - water - level area , putting forward ways to solve the problem .

通过56d的闭水加压试验，墙体未出现渗水现象。

The experiment of 56 d shutting the water and adding the pressure shows no occurrence of seeping water in the wall .

通过闭水、阔气试验，所得实测结果与设计吻合，达到了预期的目的。

Proved to conform to the designs , and desired results are achieved .