Proceedings of the 2016 4th International Conference on Mechanical Materials and Manufacturing Engineering

Analysis for Influence of Excavation on Adjacent Existing Shield Tunnel

Authors
Jing Cao, Guowei Qian, Haixi Zuo, Haiming Liu, Yaliang Ren
Corresponding Author
Jing Cao
Available Online October 2016.
DOI
https://doi.org/10.2991/mmme-16.2016.180How to use a DOI?
Keywords
Excavation; Existing shield tunnel; Soil arch effect; Pit outer disturbed zone; Surrounding rock pressure
Abstract

The horizontal earth pressure of shield tunnel affected by excavation was analyzed. Firstly, the foundation pit excavation disturbance zone boundary and the strain of level unit soil in disturbance zone were assumed. Meanwhile, the formula for calculating the horizontal earth pressure in the disturbed zone of the pit is derived. Afterwards, combined with the proposed earth pressure theory and soil arch theory, the model of horizontal earth pressure of shield tunnel consider the affected by foundation pit excavation was established. Finally, joining an engineering example, verify the rationality of the basic assumptions and theoretical deduction. The result shows that when the tunnel is located in the disturbed zone of the foundation pit, surrounding rock pressure on both sides of the tunnel will be effected, and the sides of shield tunnel near foundation pit will be larger influenced by excavation.

Copyright
© 2016, 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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Volume Title
Proceedings of the 2016 4th International Conference on Mechanical Materials and Manufacturing Engineering
Series
Advances in Engineering Research
Publication Date
October 2016
ISBN
978-94-6252-221-3
ISSN
2352-5401
DOI
https://doi.org/10.2991/mmme-16.2016.180How to use a DOI?
Copyright
© 2016, 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  - Jing Cao
AU  - Guowei Qian
AU  - Haixi Zuo
AU  - Haiming Liu
AU  - Yaliang Ren
PY  - 2016/10
DA  - 2016/10
TI  - Analysis for Influence of Excavation on Adjacent Existing Shield Tunnel
BT  - Proceedings of the 2016 4th International Conference on Mechanical Materials and Manufacturing Engineering
PB  - Atlantis Press
SP  - 751
EP  - 758
SN  - 2352-5401
UR  - https://doi.org/10.2991/mmme-16.2016.180
DO  - https://doi.org/10.2991/mmme-16.2016.180
ID  - Cao2016/10
ER  -