Using Sealed Wells to Measure Water Levels Beneath Streams and Floodplains

Noorduijn Saskia L.; Cook Peter G.; Wood Cameron; White Nick

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Using Sealed Wells to Measure Water Levels Beneath Streams and Floodplains

机译：使用密封井测量河流和洪泛区下方的水位

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The design of wells beneath streams and floodplains has often employed with tall standpipes to prevent incursion of surface water into the well during flood events. Here, an approach has been presented to minimise the infrastructure demands in these environments by sealing the well top (e.g., prevent water entering the well) and monitor the total pressure in the water column using an absolute (non-vented) pressure transducer. The sealed well design was tested using a laboratory experiment where the total pressure responses were monitored in both an unsealed and sealed well, while the water level was varied. It is observed that, whether the well is sealed or not, the total pressure at a given depth in the aquifer will be equal to that within the well. This indicates that the sealed well design is a viable alternative to tall standpipes and also facilitates installation of wells beneath streams and floodplains.

机译：溪流和洪泛区下方的水井设计经常与高高的竖管配合使用，以防止洪水发生时地表水侵入水井。这里，已经提出了一种通过密封井口（例如，防止水进入井）并使用绝对（非通风）压力传感器监视水柱中的总压力来最小化这些环境中的基础设施需求的方法。使用实验室实验对密封井的设计进行了测试，其中在未密封和密封的井中监测总压力响应，同时改变水位。可以看出，无论井是否密封，含水层中给定深度的总压力将等于井内的总压力。这表明密封的井设计是高立管的可行替代方案，也便于在溪流和洪泛区下方安装井。

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《Ground water》 |2015年第6期|872-876|共5页
作者
Noorduijn Saskia L.; Cook Peter G.; Wood Cameron; White Nick;
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Flinders Univ S Australia, Sch Environm, NCGRT, Adelaide, SA 5001, Australia;

Flinders Univ S Australia, Sch Environm, NCGRT, Adelaide, SA 5001, Australia|CSIRO, Water Hlth Country Flagship, Div Land & Water, Adelaide, SA, Australia;

Flinders Univ S Australia, Sch Environm, NCGRT, Adelaide, SA 5001, Australia;

Flinders Univ S Australia, Sch Environm, NCGRT, Adelaide, SA 5001, Australia;

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Using Sealed Wells to Measure Water Levels Beneath Streams and Floodplains

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