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Processes 2018, 6(10), 201; https://doi.org/10.3390/pr6100201

Changes in Particle Size Composition under Seepage Conditions of Reclaimed Soil in Xinjiang, China

1
School of Resources and Geosciences, China University of Mining and Technology, Xuzhou 221116, China
2
School of Geological and Mining Engineering, Xinjiang University, Urumqi 830046, China
*
Author to whom correspondence should be addressed.
Received: 15 September 2018 / Revised: 17 October 2018 / Accepted: 17 October 2018 / Published: 20 October 2018
(This article belongs to the Special Issue Fluid Flow in Fractured Porous Media)
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Abstract

The distribution of reclaimed soil particle size under seepage conditions after the management period will directly determine the success or failure of reclamation work. The geotechnical experimental method was used in this paper to study the changes in the granulometric composition of soil. The results show that the granulometric composition of the reclaimed soil varied obviously at different depths. The granulometric composition of the soil at a depth of 10 cm was not much different from undisturbed reclaimed soil (URS). At a depth of 30 cm, as the sharp decrease of the content of fine particles resulted in coarser reclaimed soil, the soil became more uniform, with an increase in porosity and water content. At a depth of 50 cm, the fine particle content was generally slightly lower than that of URS. At a depth of 70 cm, the fine particle content of the soil greatly exceeded that of the URS, with the finest soil particles and lowest porosity. The main reason for the above-mentioned changes of granulometric composition in the reclaimed soil was the seepage in soil caused by irrigation during the management period. The research results can provide a reference for management after land reclamation at non-metallic mines in Xinjiang, China. View Full-Text
Keywords: Xinjiang; land reclamation; management period; soil particle size; fluid flow in reclaimed soil Xinjiang; land reclamation; management period; soil particle size; fluid flow in reclaimed soil
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Zhang, Z.; Sui, W.; Wang, K.; Tang, G.; Li, X. Changes in Particle Size Composition under Seepage Conditions of Reclaimed Soil in Xinjiang, China. Processes 2018, 6, 201.

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