Study on mechanical characteristics of deep engineering rock materials

DOI

10.2991/iccet-15.2015.164How to use a DOI?

Keywords

Rock mechanics, Construction material, Marble, Strength parameters, Mechanical characteristics.

Abstract

According to the characteristics of deep diversion tunnel of Jinping II Hydropower Station located in the high field stress condition, for its surrounding rock, i.e. marble, the conventional triaxial test and pre-peak unloading test are carried out. Then study on its mechanical characteristics through the comparative analysis. The results show that: The peak strength increases according to the initial confining pressure increases, and even if the stress path and initial confining pressure is different, but as long as the real-time confining pressure, the peak strength is equal. Further, the change rule of mechanics parameters is the same under different stress paths. These conclusions have revealed the difference of mechanical properties of marble under loading and unloading conditions and provided reliable theoretical reference for the numerical simulation about excavation, designing and stability analysis of deep diversion tunnel in West China.

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/).

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TY  - CONF
AU  - Taoli Xiao
AU  - Ming Ai
AU  - Fei Teng
AU  - Zhonglin Wang
PY  - 2015/11
DA  - 2015/11
TI  - Study on mechanical characteristics of deep engineering rock materials
BT  - Proceedings of the 5th International Conference on Civil Engineering and Transportation 2015
PB  - Atlantis Press
SP  - 872
EP  - 877
SN  - 2352-5401
UR  - https://doi.org/10.2991/iccet-15.2015.164
DO  - 10.2991/iccet-15.2015.164
ID  - Xiao2015/11
ER  -