Proceedings of the 3rd International Conference on Material, Mechanical and Manufacturing Engineering

Shear Deformation Characteristics of Aeolian Sand in Gurbantunggut Desert

Authors
Chang-Ning Jin, Yu-Hong Zhang
Corresponding Author
Chang-Ning Jin
Available Online August 2015.
DOI
https://doi.org/10.2991/ic3me-15.2015.113How to use a DOI?
Keywords
Road Engineering; Shear Deformation; Aeolian Sand; Desert; Gurbantunggut Desert
Abstract

Through various types of quick shear test, completely grasp the shear deformation characteristic of aeolian sand in Gurbantunggut Desert. The test result shows that the shear deformation curve of aeolian sand is influenced obviously by relative compactness. When the latter one is lower than 95%, the peak doesn’t appear; when being greater than 95%, the peak value may appear frequently. With increase of compactness and vertical pressure, the differential value between peak shear strength and residual shear strength also increase; the influence on residual shear strength by compactness, vertical pressure and water content rate is less, the greater influence mostly appears when the peak shear strength is over 90%, showing that the aeolian sand is provided with obvious shear dilatancy and shear contraction. Under unsaturated water while testing, the shear strain is between 0.64% 1.12% when the peak value appears; Under unsaturated water while testing, the shear strain may increase obviously so as to cause that the peak value for shear deformation curve uneasily appears. The mechanism lies in the complicated change and comprehensive influence of connection between capillary force and film water caused by change of compactness and water content ratio.

Copyright
© 2015, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

Volume Title
Proceedings of the 3rd International Conference on Material, Mechanical and Manufacturing Engineering
Series
Advances in Engineering Research
Publication Date
August 2015
ISBN
978-94-6252-100-1
ISSN
2352-5401
DOI
https://doi.org/10.2991/ic3me-15.2015.113How to use a DOI?
Copyright
© 2015, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

TY  - CONF
AU  - Chang-Ning Jin
AU  - Yu-Hong Zhang
PY  - 2015/08
DA  - 2015/08
TI  - Shear Deformation Characteristics of Aeolian Sand in Gurbantunggut Desert
BT  - Proceedings of the 3rd International Conference on Material, Mechanical and Manufacturing Engineering
PB  - Atlantis Press
SP  - 572
EP  - 578
SN  - 2352-5401
UR  - https://doi.org/10.2991/ic3me-15.2015.113
DO  - https://doi.org/10.2991/ic3me-15.2015.113
ID  - Jin2015/08
ER  -