Review on measurement methods of permeability coefficient in saturated clay
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Abstract:
Permeability coefficient of saturated clay is an important parameter in hydrogeology, and its testing methods include la 2 boratory and in 2situ methods according to different testing sites. Darcy cs Law and Terzaghi consolidation theory are main theo2 ries applied in the testing methods. However, there is not a complete test system, and current testing methods and instruments have their own deficiencies and irrationality. In this paper, the history of measurement methods of permeability coefficient in the saturated clay is reviewed, the mechanism of the seepage in the saturated soil is discussed, and the laboratory and in 2situ testing methods are summarized. Besides the traditional testing methods, the new test methods to determine permeability coefficient, such as tracer method and consolidation curve, are introduced. Finally, the paper discusses how to determine permeability coeffi 2 cient in the saturated soil.
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