负压和瞬态压力可能会影响水质和结构 配电干线的完整性。全配水干管中的流量变化将 导致分配干管内的压力发生变化，无论是正压力还是负压力。 超过配水干管结构强度的正瞬态压力将 以破裂的形式造成损坏，或者更常见的情况是，以 导致以后失效的潜在损害。负压可能会造成损坏 以结构坍塌的形式柔性分布主材，以及 水锤，并可能导致受污染的地下水侵入水中 主要的 研究进展 数字数据处理系统极大地提高了我们持续 监测并记录负压，甚至很短的水锤事件。 这些改进有助于在广泛的环境下监测瞬态压力 各种各样的情况。对破坏性瞬态压力事件的早期检测现在非常重要 更切实可行，从而减少对配电干线造成的损坏 从这些事件中。本文简要介绍了瞬变压力产生的原因和原因 改进了检测瞬态压力的工具。最后是 向土木工程师和配电主业主提出的建议 减少瞬态压力造成的损害。包括4个参考文献、图表。

Negative pressures and transient pressures may affect water quality and structural integrity of distribution mains. A change in the flow rate in a full distribution main will cause a change in the pressure within that distribution main, either positive or negative. Positive transient pressures exceeding the structural strength of the distribution main will cause damage in the form of rupture or, as is more frequently the case, in the form of latent damage that results in failure at a later date. Negative pressures may cause damage in the form of structural collapse of flexible distribution main materials, and waterhammer, and may lead to the intrusion of contaminated groundwater into the water main. Advances in digital data processing systems have significantly improved our ability to continuously monitor and record negative pressures and even the very-short waterhammer event. These improvements have facilitated monitoring for transient pressures under a wide variety of circumstances. Early detection of damaging transient pressure events is now more practicable, thus permitting the reduction of damage to distribution mains resulting from these events. This paper briefly describes the causes of transient pressures and improvements in tools available to detect transient pressures. It concludes with suggestions to civil engineers and distribution main owners regarding what can be done to reduce damages from transient pressures. Includes 4 references, figures.