Measuring saturated hydraulic conductivity and anisotropy of peat by a modified split-container method

作者: Ranjeet M. Nagare , Robert A. Schincariol , Aaron A. Mohammed , William L. Quinton , Masaki Hayashi

DOI: 10.1007/S10040-012-0930-7

关键词: AnisotropyMineralogyConsolidation (soil)Geotechnical engineeringPeatMaterials scienceCubeHydrogeologyWaxHydraulic conductivity

摘要: Long-term changes in the physical and hydraulic properties of peat result from decomposition consolidation processes. The saturated conductivity (K s) is depth-dependent could increase or decrease with depth; therefore, K s determination on a large number samples required to more accurately assess field variability. cube method popular laboratory procedure determine because it allows use smaller sample dimensions, while minimizing edge effects. This article describes design an alternate split container enclose undisturbed cubes during measurement application this site Northwest Territories, Canada. for simpler controlled measurements also permitting anisotropy measurements. Matched tests identical range 21–314 m/d), using split-container wax methods, showed good agreement intermediate values; however, significant deviations occurred low high values. Hydraulic-conductivity taken depth exhibited anisotropic as expected based previous studies.

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