The effect of the rheological stability of a dam tunnel’ surrounding rock linking to different buried depth

DOI

10.2991/icadme-15.2015.192How to use a DOI?

Keywords

Tunnel; Surrounding Rock; Buried Depth; Unloading; Rheology; Lining

Abstract

This paper is based on a diversion tunnel excavation project, the rheological stability analysis was carried out on the excavation process. Due to large buried depth, tectonic stress and stress have influence on the safety of engineering. Based on the theory of unloading rock mass and rock rheology theory, and applied two software ANSYS and FLAC to the surrounding rock of tunnel of different buried depth before and after applying lining in order to analyze the stress and displacement of the plastic zone. The results showed that in the process of excavation of tunnel hole weeks, it is necessary to consider unloading rock mass action. The influence of buried depth of tunnel surrounding rock near point displacement cannot be ignored. When the tunnel after excavation reaches a certain depth, if continue to excavate, we need to strengthen the strength of the lining.

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  - C.L Xu
AU  - R.H Wang
PY  - 2015/10
DA  - 2015/10
TI  - The effect of the rheological stability of a dam tunnel’ surrounding rock linking to different buried depth
BT  - Proceedings of the 5th International Conference on Advanced Design and Manufacturing Engineering
PB  - Atlantis Press
SP  - 1031
EP  - 1037
SN  - 2352-5401
UR  - https://doi.org/10.2991/icadme-15.2015.192
DO  - 10.2991/icadme-15.2015.192
ID  - Xu2015/10
ER  -