Proceedings of the 2017 6th International Conference on Energy, Environment and Sustainable Development (ICEESD 2017)

Optimization of Construction Process of Double Side Slope Method Used in Super Section Tunnel

Authors
Xingliang Jin, Bin Liang
Corresponding Author
Xingliang Jin
Available Online April 2017.
DOI
https://doi.org/10.2991/iceesd-17.2017.36How to use a DOI?
Keywords
shallow buried super section flat tunnel; surrounding rock stress; double side slope method; excavation step sequence optimization
Abstract
Taking Chongqing Metro Line 5 tunnel project as an engineering example, which is a shallow buried large section tunnel. The finite element numerical analysis software MIDAS-GTS was used to establish the three-dimensional finite element model of the tunnel. The analysis data was compared with the site monitoring data. The results show that the mechanical indexes of the super large cross section tunnel increase suddenly when the middle wall core soil were removed. This stage should strengthen the monitoring frequency. The data of ground surface settlement, vault settlement and the level convergence under three kinds of excavation step were compared. In the end, it was concluded that the "L" type excavation step is reasonable which the construction efficiency is increased and the construction cost is saved. This paper puts forward the reasonable steps of the construction of large span flat tunnel under the geological conditions of the project.
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Proceedings
2017 6th International Conference on Energy, Environment and Sustainable Development (ICEESD 2017)
Part of series
Advances in Engineering Research
Publication Date
April 2017
ISBN
978-94-6252-328-9
ISSN
2352-5401
DOI
https://doi.org/10.2991/iceesd-17.2017.36How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - CONF
AU  - Xingliang Jin
AU  - Bin Liang
PY  - 2017/04
DA  - 2017/04
TI  - Optimization of Construction Process of Double Side Slope Method Used in Super Section Tunnel
BT  - 2017 6th International Conference on Energy, Environment and Sustainable Development (ICEESD 2017)
PB  - Atlantis Press
SN  - 2352-5401
UR  - https://doi.org/10.2991/iceesd-17.2017.36
DO  - https://doi.org/10.2991/iceesd-17.2017.36
ID  - Jin2017/04
ER  -