Characteristics of dynamic response and cumulative damage life of soft rock under the high-speed railway tunnel

DOI

10.2991/iccet-15.2015.195How to use a DOI?

Keywords

tunnel of High-speed railway; soft rock under the bottom of tunnel; Dynamic characteristics; accumulative damage life

Abstract

Based on the method of nonlinear finite element, the dynamic response characteristics and fatigue life of soft rock at the bottom of the typical cross section of high speed railway are studied. The research result shows that the peak dynamic stress of the soft rock increases nonlinearly with the increase of the speed of train, and decreases nonlinearly with the increase of the depth and the strength of the soft rock. Based on the Miner accumulated damage theory, the fatigue life of the soft rock at the bottom of a high-speed railway tunnel is studied. The research has certain pragmatic value to improve our country's high-speed railway tunnel design and operation management level.

Copyright

© 2015, 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  - Xiang-Qiu Wang
AU  - Wen-Xi Xie
AU  - Bin Cai
PY  - 2015/11
DA  - 2015/11
TI  - Characteristics of dynamic response and cumulative damage life of soft rock under the high-speed railway tunnel
BT  - Proceedings of the 5th International Conference on Civil Engineering and Transportation 2015
PB  - Atlantis Press
SP  - 1029
EP  - 1033
SN  - 2352-5401
UR  - https://doi.org/10.2991/iccet-15.2015.195
DO  - 10.2991/iccet-15.2015.195
ID  - Wang2015/11
ER  -