Failure Analysis of Slope Bolting and Shotcrete Structure under Ultimate Condition

DOI

10.2991/iceep-17.2017.210How to use a DOI?

Keywords

Spray anchor support;Bearing the limit;Debonding phenomenon;Thickness of spray layer

Abstract

In the frozen area, the freeze-thaw cycle may lead to the separation of the concrete spray and the slope in the spray anchor structure, resulting in failure of the spray anchor structure.In this paper, the gravity of the spray layer itself is decomposed by the force equivalence principle and the Saint-Venant principle,and two kinds of damage assumptions are put forward and analyzed and calculated.The results show that the thickness of the spray layer should not be too large under the limit condition of the coating layer and the slope body completely deodorized. Otherwise, the bolt will be broken;When taking the shot anchor support measures, should take into account the local crushing of concrete and steel shear fracture two cases.

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  - Quanchao Bi
AU  - Mingxiu Zhang
AU  - Xuelei Wang
AU  - Qiang Rao
PY  - 2017/06
DA  - 2017/06
TI  - Failure Analysis of Slope Bolting and Shotcrete Structure under Ultimate Condition
BT  - Proceedings of the 2017 6th International Conference on Energy and Environmental Protection (ICEEP 2017)
PB  - Atlantis Press
SP  - 1199
EP  - 1204
SN  - 2352-5401
UR  - https://doi.org/10.2991/iceep-17.2017.210
DO  - 10.2991/iceep-17.2017.210
ID  - Bi2017/06
ER  -