Comparative Analysis on the Internal Force of CRD Method with different Steps for Excavating Super Shallow Tunnel

DOI

10.2991/emeit.2012.122How to use a DOI?

Keywords

Super shallow tunnel, Axial force and moment, Tunnel excavation, CRD method.

Abstract

On the adaptability of CRD four steps method and six steps method for excavating super shallow tunnel, elastic-plastic simulation are executed by ANSYS and Mohr-coulomb criterion. The development and distribution of axial force and moment of two kinds of methods are compared. Analysis results indicate that the axial force and moment of CRD four steps method are larger than that of six steps method. It is comparatively obvious that the axial force and moment developed near the lateral contour of tunnel by both two methods. The CRD six steps method is better than four steps method for excavating super shallow tunnel and should be adopted in actual construction process.

Copyright

© 2012, 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  - Ling Weng
AU  - Dingbang Zhang
PY  - 2012/09
DA  - 2012/09
TI  - Comparative Analysis on the Internal Force of CRD Method with different Steps for Excavating Super Shallow Tunnel
BT  - Proceedings of the 2nd International Conference on Electronic & Mechanical Engineering and Information Technology (EMEIT 2012)
PB  - Atlantis Press
SP  - 582
EP  - 585
SN  - 1951-6851
UR  - https://doi.org/10.2991/emeit.2012.122
DO  - 10.2991/emeit.2012.122
ID  - Weng2012/09
ER  -