Indoor experimental study on permeability characteristics of remolded Malan Loess
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Abstract:
In this study, indoor routine permeability experiments were conducted to examine the saturated hydraulic conductivity of remolded Malan loess in Yan’an at different degree of compaction, and analyze the relationships between saturated hydraulic conductivity and several factors, including particle size, dry density and porosity. The results showed that saturated hydraulic conductivity had significant positive index correlation with porosity, and significant positive index correlation with dry density. Additionally, when the dry density was bigger than 1.6g/cm3, the saturated hydraulic conductivity was not only stable with total permeability time, but also small enough to be considered as impermeability. Hence, 1.6 g/cm3 could be adopted to guide the compaction engineering of different standards.
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