Proceedings of the 2018 3rd International Conference on Automation, Mechanical Control and Computational Engineering (AMCCE 2018)

Direct Shear Test Analysis of Coarse-grained Soil in Nyang River Valley Based on Dynamic Shear Area

Authors
Ruijie Lin, Zhixiang Cao, Xinwei Song, Suhua Zhao, Xiandong Han
Corresponding Author
Ruijie Lin
Available Online May 2018.
DOI
https://doi.org/10.2991/amcce-18.2018.103How to use a DOI?
Keywords
Nyang River Valley, coarse-grained soil, direct shear test, dynamic shear area, shear stress correction
Abstract
The shear strength of coarse-grained soil is usually measured through a large-scale direct shear test. However, the dynamic change of the shear surface during the test has an effect on the calculation of the shear strength of coarse-grained soil. This paper put forward the formula for the dynamic shear area, determined the dynamic shear area of the DHJ50-2 type superimposed ring shear test machine with the formula and carried out error analysis. In this paper, the shear strength tests of four kinds of homogeneous coarse-grained soils with different particle sizes in Nyang River Valley were carried out, and the shear strength was corrected with the dynamic shear area. The results showed that, for the DHJ50-2 type superimposed ring shear test machine, there was 15.10% error between the shear area with maximum shear displacement and the unchanged one; both the peak shear stress and internal friction angle of four kinds of coarse-grained soil were higher after correction while the cohesiveness of most coarse-grained soil decreased; and after correction, the peak shear stress of most samples was backward with the shear displacement.
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This is an open access article distributed under the CC BY-NC license.

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Proceedings
2018 3rd International Conference on Automation, Mechanical Control and Computational Engineering (AMCCE 2018)
Part of series
Advances in Engineering Research
Publication Date
May 2018
ISBN
978-94-6252-508-5
ISSN
2352-5401
DOI
https://doi.org/10.2991/amcce-18.2018.103How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - CONF
AU  - Ruijie Lin
AU  - Zhixiang Cao
AU  - Xinwei Song
AU  - Suhua Zhao
AU  - Xiandong Han
PY  - 2018/05
DA  - 2018/05
TI  - Direct Shear Test Analysis of Coarse-grained Soil in Nyang River Valley Based on Dynamic Shear Area
BT  - 2018 3rd International Conference on Automation, Mechanical Control and Computational Engineering (AMCCE 2018)
PB  - Atlantis Press
SN  - 2352-5401
UR  - https://doi.org/10.2991/amcce-18.2018.103
DO  - https://doi.org/10.2991/amcce-18.2018.103
ID  - Lin2018/05
ER  -