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Experimental Study on the Permeability of a Soil-Rock Mixture Based on the Threshold Control Method
Joint Authors
Ding, Xiaohua
Shi, Xuyang
Zhou, Wei
Luan, Boyu
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-03-03
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
The study of the permeability of soil-rock mixtures is important in supporting theories behind reclamation mechanisms for open-pit mines.
To avoid the influence of differences in the spatial distribution of rock within the same sample on the permeability of a soil-rock mixture in laboratory tests, a numerical method for modelling the soil-rock mixture based on the threshold control method was proposed.
Through the statistical results of 297 CT (computed tomography) cross sections of soil-rock mixture samples, the threshold values of pores, soils, and rocks are obtained, and a numerical model representing the reactions of the samples to real-world conditions is obtained.
A numerical model was used that could vary with different rock block proportions (RBP) and porosities.
Based on Darcy’s law, it is concluded that macroscopic voids greatly increase the permeability of the sample due to their depth of penetration.
The higher the stone content, the closer the permeability will be to the permeability of the rock skeleton.
Therefore, during the reclamation process of the open-pit mine, the water-retaining layer below the humus should be compacted, and RBP should be increased to lower permeability and achieve better water retention.
American Psychological Association (APA)
Ding, Xiaohua& Shi, Xuyang& Zhou, Wei& Luan, Boyu. 2019. Experimental Study on the Permeability of a Soil-Rock Mixture Based on the Threshold Control Method. Advances in Civil Engineering،Vol. 2019, no. 2019, pp.1-10.
https://search.emarefa.net/detail/BIM-1117433
Modern Language Association (MLA)
Ding, Xiaohua…[et al.]. Experimental Study on the Permeability of a Soil-Rock Mixture Based on the Threshold Control Method. Advances in Civil Engineering No. 2019 (2019), pp.1-10.
https://search.emarefa.net/detail/BIM-1117433
American Medical Association (AMA)
Ding, Xiaohua& Shi, Xuyang& Zhou, Wei& Luan, Boyu. Experimental Study on the Permeability of a Soil-Rock Mixture Based on the Threshold Control Method. Advances in Civil Engineering. 2019. Vol. 2019, no. 2019, pp.1-10.
https://search.emarefa.net/detail/BIM-1117433
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1117433