Seepage-Stress Coupling Analysis of Water-Rich Loess Tunnel

DOI

10.2991/icsmim-15.2016.219How to use a DOI?

Keywords

Seepage-stress coupling; Water-rich; Loess tunnel; Grouting-reinforcement;

Abstract

Through engineering example and using the FEM software GTS, water-rich loess tunnel excavation is analyzed without or with the grouting-reinforcement effect and different permeability coefficient of grouting-reinforcement structure. Influence of flow field characteristics and displacement field characteristics caused by variation of grouting-reinforcement structure permeability coefficient in ordinary water level was analyzed. The results show that the permeability coefficient of grouting-reinforcement structure is play an important in the seepage path, pore water pressure and seepage velocity. It also influence in the displacement of surrounding rock. Designs of grouting-reinforcement structure of water-rich loess tunnel should consider impact of seepage-stress coupling effect. First, the waterproofing effect of grouting-reinforcement structure should be considered to, otherwise, it should avoid that the pore water pressure increasing by increase of waterproofing effect of grouting-reinforcement structure, the soil shear strength reducing.

Copyright

© 2016, 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/).

Download article (PDF)

TY  - CONF
AU  - Zhijie Sun
AU  - Jun Zhang
AU  - Zhongming Su
AU  - Xiaohui Xue
PY  - 2016/01
DA  - 2016/01
TI  - Seepage-Stress Coupling Analysis of Water-Rich Loess Tunnel
BT  - Proceedings of the 2015 4th International Conference on Sensors, Measurement and Intelligent Materials
PB  - Atlantis Press
SP  - 1187
EP  - 1190
SN  - 2352-538X
UR  - https://doi.org/10.2991/icsmim-15.2016.219
DO  - 10.2991/icsmim-15.2016.219
ID  - Sun2016/01
ER  -