Numerical Analysis of the Effect of Tunnel Advance Support on Surrounding Rock Stability

DOI

10.2991/coal-18.2018.15How to use a DOI?

Keywords

advance support, soft rock mass, surrounding rock stability

Abstract

The purpose of this paper is to study the effect of advance support on the stability of tunnel surrounding rock using the numerical analysis. For this, three different cases, such as without support, pipe shed grouting support, and advance small pipe grouting support were calculated and analyzed. The research shows that: both the pipe shed grouting support and advance small pipe grouting support all have a good effect on the supporting and strengthening of tunnel surrounding rocks. They can effectively control the vault settlement, haunch displacement, ground settlement and reduce the plastic zone distribution during tunnel excavation. In addition, compared with the advance small pipe grouting support, the pipe shed` grouting support has better effect on supporting and strengthening surrounding rock of tunnel. The study provides a reference for the actual engineering design of the tunnel.

Copyright

© 2018, 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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TY  - CONF
AU  - Zhitao Ma
AU  - Xinpeng Wang
AU  - Yachao Yang
AU  - Yongqiang Cui
PY  - 2018/10
DA  - 2018/10
TI  - Numerical Analysis of the Effect of Tunnel Advance Support on Surrounding Rock Stability
BT  - Proceedings of the 9th China-Russia Symposium "Coal in the 21st Century: Mining, Intelligent Equipment and Environment Protection" (COAL 2018)
PB  - Atlantis Press
SP  - 86
EP  - 90
SN  - 2352-5401
UR  - https://doi.org/10.2991/coal-18.2018.15
DO  - 10.2991/coal-18.2018.15
ID  - Ma2018/10
ER  -