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Environmental Earth Sciences

, Volume 67, Issue 1, pp 285–292 | Cite as

Stability of embankments constructed from soil mixed with stone dust in quarry reclamation

  • Young-Suk SongEmail author
  • Kyeong-Su Kim
  • Kyu-Seok Woo
Original Article

Abstract

This study examines the stability of an embankment used in stone quarry reclamation built of local natural soil mixed with stone dust. Stone dust is a fine-grained and low-strength material, whereas soil is coarser with higher strength. Test results show that the shear strength and maximum dry unit weight of the mixed material increase with a decrease in the stone dust. After reviewing various domestic and international standards for slope stability, this study suggests a three-grade slope stability rating system (“unstable,” “requires attention” and “stable”) for embankments built of soil mixed with stone dust. A series of slope stability analysis aims to define stable heights, slope angles and mix ratios for such embankments. Safe slope gradients should be 1:1.8 or higher for 10 m high embankments. Embankments 15 m in height should use a mix ratio less than 50% and a slope gradient of 1:1.8 or higher. The safe dimensioning and design guideline values determined by this study should be useful for the construction of new, as well as the stability evaluation of existing embankments that have been made from mixed soils containing stone dust.

Keywords

Stone dust Soil Slope stability Embankment dimensioning Design guideline Stone quarry Reclamation 

Notes

Acknowledgments

This research was supported by the Basic Research Project (development of propagation control technology of geoenvironmental hazards induced by mining activity) of the Korean Institute of Geoscience and Mineral Resources (KIGAM), funded by the Ministry of Knowledge Economy of Korea.

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Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  1. 1.Geologic Environment DivisionKorea Institute of Geoscience and Mineral ResourcesDaejeonKorea
  2. 2.AMC Consultants (Canada) Ltd.VancouverCanada

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