Research and Practice of Monitoring Measurement Security Technology of Portal Excavation for Mountain Tunnel

DOI

10.2991/aece-16.2017.72How to use a DOI?

Keywords

mountain tunnel; portal excavation; monitoring measurement; stability analysis; information feedback

Abstract

In the construction process of portal excavation for mountain tunnels, the improper risk management and control result in the instability of the front slope, deformation of the tunnel portal and subsidence of the roof. In order to carry out the purport of dynamic design and informationalized construction, ensuring the quality and security of portal construction, a three-dimensional and multi-level monitoring measurement system is indispensable. Combining with the practical monitoring measurement of the portal excavation of the tunnel exit in a mountain tunnel in Chongqing, the monitoring measurement system construction process of portal excavation for mountain tunnels is expounded. Besides, the portal stability analysis method and the monitoring information feedback procedure based on multi-source data for the three-dimensional and multi-level monitoring measurement system are analyzed.

Copyright

© 2017, 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  - Shiyu WEI
AU  - Chuan LI
AU  - Jun JIANG
AU  - Chao LI
AU  - Pengfei LU
PY  - 2016/12
DA  - 2016/12
TI  - Research and Practice of Monitoring Measurement Security Technology of Portal Excavation for Mountain Tunnel
BT  - Proceedings of the 2016 International Conference on Architectural Engineering and Civil Engineering
PB  - Atlantis Press
SP  - 324
EP  - 330
SN  - 2352-5401
UR  - https://doi.org/10.2991/aece-16.2017.72
DO  - 10.2991/aece-16.2017.72
ID  - WEI2016/12
ER  -