Earth Pressure Analysis on Subway Deep Excavation near Arch Bridge Abutment

Abstract:

Subway construction involves a large number of excavation engineering. For the restrictions caused by conditions on the spot,Many foundation pits projects showed some features of clear spatial effects, complex stress characteristics,multiplex affecting factors, it often can not be suit for the applicable conditions of the existed earth pressure theory very well. On the background of BeiLing Station Passageway construction in Shenyang Subway Line No.2, Through counting and analyzing the results of three-dimensional numerical simulation in detail,summing up regulations of Taishan bridge abutment displacement in the horizontal plane. Force act on 4,5foundations fender post present trapezium and parabola distribution with depth respectively. So it is concluded the properties of foundation pit earth pressure, proposing a simple calculating model comparing its results with numerical simulation results to verify the reasonableness of the model. So the problem which is how to calculate the earth pressure under the complexity of obvious spatial effects and a variety of environmental conditions can be solved and reference experiences on the calculation of earth pressure can be provided to similar Follow-up projects

• Periodical: Advanced Materials Research (Volumes 368-373)
• Pages: 2955-2959
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.368-373.2955
• Online since: October 2011
• Authors: Yan Xu, Zhen Shun Liu, Wen Zhao
• Keywords: Computational Micromechanics Method, Earth Pressure, Foundation Pit, Numerical Simulation

References

[1] Xu Riqing,Yu Jianlin, Gong Xiaonan. Excavation middle-earth pressure calculating method research.BeiJin: International Academic Publishers, 1999, P667-670.

[2] MEI Guoxiong ,Zai Jinmin,Xu Jian. Earth Pressure Model Considering Settlement and Time Effect[J] Chinese Journal of Rock Mechanics and Engineering,2001(Supplement), P1079~1082.

[3] Yang Xueqiang,L i u Zude, He Shi xiu. Re search about spatial effect of deep pit supporting, Chinese Journal of Geotechnical Engineering, 1998, 20(2):74-78.

[4] Yi Nan gai,Wu Da qun,Xie Zhi, et al. A Method of Lateral Earth Pressure Calculation Consequent upon Displacement for Excavation[J], JOURNAL OF SHENYANG JIANZHU UNIVERSITY NATURAL SCIENCE, 2005,1(21):26~28.