Sensitivity analysis for shear strength of flat interface between shotcrete and granite in high temperature tunnel

DOI

10.2991/icreet-16.2017.27How to use a DOI?

Keywords

tunnel; high rock temperature; shotcrete; shear strength; sensitivity.

Abstract

For the sensitivity on the shear strength of flat interface between shotcrete and granite in high temperature tunnel, shear experiments were performed with concrete-granite combined specimens. By calculating the sensitivities of temperature, relative humidity, normal stress and concrete strength, the sensitivities of peak shear strength and residual shear strength were evaluated. The results show that the most sensitive factor is temperature and the more sensitive factors are relative humidity and normal stress for peak shear strength. Whereas it has weak correlation with concrete strength. The most sensitive factor is normal stress for residual shear strength, and all of temperature, relative humidity and concrete strength are weakly relative to it. High rock temperature has great influence on the peak shear strength, however, little effect on the residual shear strength which is similar to normal temperature.

Copyright

© 2017, 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/).

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TY  - CONF
AU  - Xinghua Tang
AU  - Mingnian Wang
AU  - Congyu Dong
AU  - Jianjun Tong
AU  - Yicheng Wang
PY  - 2017/03
DA  - 2017/03
TI  - Sensitivity analysis for shear strength of flat interface between shotcrete and granite in high temperature tunnel
BT  - Proceedings of the 2016 4th International Conference on Renewable Energy and Environmental Technology (ICREET 2016)
PB  - Atlantis Press
SP  - 155
EP  - 160
SN  - 2352-5401
UR  - https://doi.org/10.2991/icreet-16.2017.27
DO  - 10.2991/icreet-16.2017.27
ID  - Tang2017/03
ER  -