Analysis of plastic zone boundary of circular tunnel under the asymmetric load
- 10.2991/icadme-15.2015.216How to use a DOI?
- Circular tunnel; plastic zone; lateral pressure coefficient; Mohr Coulomb criterion
In order to study the stress distribution features of the surrounding rocks a long the circle tunnel after the roadway excavated and the radius size of there leased circle, first analysis of the stress distribution characteristics of the surrounding rock, on this basis, circular tunnel for the elastic and plastic zone is derived based on the mohr coulomb strength criterion. The plastic zone in the surrounding rock of the tunnel under the conditions of different side pressure, different stress, different cohesion and different friction angle was obtained with the theoretical calculation. The evolution of the plastic zone is summed up from plastic zone equation. The lateral pressure coefficient has a great influence on plastic radius; with the increase of stress, the plastic zone increases; with the cohesion increases the plastic zone reduced; with the cohesion increases the plastic zone reduced.
- © 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 - Chao Ke Liu AU - Jian Xi Ren PY - 2015/10 DA - 2015/10 TI - Analysis of plastic zone boundary of circular tunnel under the asymmetric load BT - Proceedings of the 5th International Conference on Advanced Design and Manufacturing Engineering PB - Atlantis Press SP - 1174 EP - 1178 SN - 2352-5401 UR - https://doi.org/10.2991/icadme-15.2015.216 DO - 10.2991/icadme-15.2015.216 ID - Liu2015/10 ER -