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Comparison of Field and Laboratory Methods for Measuring Hydraulic Conductivity in the Unsaturated Zone in Engineered and Native Soils

机译：工程和原生土壤非饱和区水力传导率的野外测试方法与实验室方法的比较

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摘要

Stormwater control measures (SCMs) are used to control runoff volume and peak flow rates. Rain gardens are one type of vegetated SCM which can utilize engineered or native media. Hydraulic conductivity, which can be measured in the field or laboratory, is a major design parameter for infiltration SCMs. The double-ring infiltrometer (ASTM D3385) is the most commonly used technique to determine hydraulic conductivity in the field; however, it can be cumbersome because of its considerable size and large water usage. In this study, various infiltration techniques, such as Modified Philip-Dunne, single-ring, and double-ring infiltrometers, were used to determine the hydraulic conductivity at different sites. In addition, the UMS KSAT Benchtop laboratory method was used to find hydraulic conductivity. Preliminary results indicate that the Modified Philip-Dunne provides results similar to the other tests methods.
机译：雨水控制措施（SCM）用于控制径流量和峰值流量。雨花园是一种植被覆盖的SCM，可以利用工程或本地媒体。可以在现场或实验室测量的水力传导率是渗透SCM的主要设计参数。双环渗透仪（ASTM D3385）是确定现场水力传导率的最常用技术。但是，由于其体积大且用水量大，因此可能很麻烦。在这项研究中，使用了各种渗透技术，例如改良的Philip-Dunne，单环和双环渗透计，来确定不同位置的水力传导率。另外，使用UMS KSAT Benchtop实验室方法来发现水力传导率。初步结果表明，改进的Philip-Dunne提供的结果与其他测试方法相似。

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