The Surrounding Rock Pressure Research of Tunnel Group with Large Section and Three-hole of Small Neighborhood

DOI

10.2991/icmce-14.2014.122How to use a DOI?

Keywords

Tunnel, Surrounding Rock Pressure, Depth, Earth Covering Thickness

Abstract

Derivation of parallel three-hole of small spacing Tunnel in shallow non- bias case, surrounding rock pressure formula in sequence of first side hole after middle hole excavation, drawn the corresponding computational model For the study of parallel three holes of small clear space tunnel surrounding rock pressure in the case of size and distribution in a shallow non- bias, and impact of the law by earth covering thickness change, conducted a comparative calculation When the tunnel clear distance is certain, on the whole, three holes tunnel outside vertical pressure and lateral pressure with depth increases increasing, and approximately linear growth By contrast, drawn parallel to the three-hole and small spacing tunnel excavation, three holes to force state has deteriorated compared with norms calculated in single hole excavation, the calculation specification requires only symmetric stress state is chosen not safe conclusion

Copyright

© 2014, 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/).

Download article (PDF)

TY  - CONF
AU  - Yue-Guang HE
AU  - Lei-Sen SHAO
AU  - Meng ZHOU
PY  - 2014/12
DA  - 2014/12
TI  - The Surrounding Rock Pressure Research of Tunnel Group with Large Section and Three-hole of Small Neighborhood
BT  - Proceedings of the 2014 International Conference on Mechanics and Civil Engineering
PB  - Atlantis Press
SP  - 700
EP  - 705
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmce-14.2014.122
DO  - 10.2991/icmce-14.2014.122
ID  - HE2014/12
ER  -