Optimization of the Excavation Scheme for Underground Engineering Based on Energy Release Rate
- 10.2991/emeit.2012.69How to use a DOI?
- underground engineering, stability analysis, numerical simulation, energy release rate
Loading and unloading experiments on rock materials have shown that the strength parameters and deformation properties of rocks during unloading were considerable different from those during loading. Therefore, it is reasonable to evaluate the stability of underground engineering during excavation based on the unloading behaviour of rocks, so that the in-situ conditions can be reflected realistically. In this study, unloading behavior of rock mass during excavation considering the geological conditions is modeled for an underground tunnel. The energy release rate, the total amount of released energy and the averaged energy release rate are numerically evaluated and compared for different excavation schemes. Numerical simulations confirm the feasibility of applying the average energy release rate in evaluating the stability of tunnels and optimizing the excavation schemes.
- © 2012, 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 - Chengliang ZHANG PY - 2012/09 DA - 2012/09 TI - Optimization of the Excavation Scheme for Underground Engineering Based on Energy Release Rate BT - Proceedings of the 2nd International Conference on Electronic & Mechanical Engineering and Information Technology (EMEIT 2012) PB - Atlantis Press SP - 346 EP - 351 SN - 1951-6851 UR - https://doi.org/10.2991/emeit.2012.69 DO - 10.2991/emeit.2012.69 ID - ZHANG2012/09 ER -