Abstract
This paper presents an in-situ Darcy test for measuring permeability of soil in shallow vadose zone. The equipments of the test was designed based on the theory of classic Darcy Test comprising water infiltration system, water supply system and measuring system. During the experiment, the soil was submerged by water with constant head maintained by a Marriott tube. Volume of water consumed and the corresponding water head in a time series were recorded when the soil was saturated. Then soil permeability was obtained using the Darcy’s law. Three groups of the in-situ Darcy tests were conducted at the loess plateau in north western China, and average values of permeability were obtained to range from 0.84 to 2.22 m/d. It is shown that the original structures of soil can be well considered with the in-situ test compared to the classic in-door Darcy Test. Furthermore, the data record was more intuitive and the operations are easier compared to the other in-situ tests to measure the soil permeability.
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Acknowledgments
This research was supported by National Land Resources Survey Project (No. 1212011140005 and No. 1212011014024).
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Sun, P., Zhang, M., Zhu, L., Pei, Y., Cheng, X. (2014). An In-situ Darcy Method for Measuring Soil Permeability of Shallow Vadose Zone. In: Sassa, K., Canuti, P., Yin, Y. (eds) Landslide Science for a Safer Geoenvironment. Springer, Cham. https://doi.org/10.1007/978-3-319-05050-8_30
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DOI: https://doi.org/10.1007/978-3-319-05050-8_30
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