Analysis on the Impact of the Constitutive Model of Trains Vibration in Shield Tunnel

Abstract:

In this paper, with the in-situ engineering project Shiziyang tunnel of Guangzhou-Shenzhen Railway, under the disturbance of high-speed train vibration load, the shield tunnels dynamic response and foundations sand liquefying phenomenon are studied ,where they are mainly located in saturated and soft soil. Due to the tunnel going through the paralic deposited silt layer, silty soil, alluvial clay layer and the layer of fine sand or coarse sand layer, under the condition that enduring a long time of high-speed train running, which may easily lead to the foundation liquefaction and asymmetric settlement. At the entrance of the tunnel, with the poor geological conditions and weak cladding, which can easily induce sliding and collapse, where the geological conditions of this part is the most unfavorable place. Through numerical simulations, the main factor the constitutive model is explored, which may affect the single high-speed train loads on the vibration response of the train in shield tunnel and the law of accumulation and dissipation for pore water pressure.

• Periodical: Applied Mechanics and Materials (Volumes 501-504)
• Pages: 1787-1791
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.501-504.1787
• Online since: January 2014
• Authors: Xiao Juan Quan*, Xin Ming Guo, Kai Shi
• Keywords: High-Speed Train Vibration, Saturated, Shield Tunnels Dynamic Response, Soft Soil

References

[1] Metrikine A V，Vrouwenvelder A C W M． Surface ground vibration due to moving train in a tunnel: Two-dimensional model[J]． Journal of Sound，2000，234( 1) : 43-46.

DOI: 10.1006/jsvi.1999.2853

[2] Gardien W，Stuit H G． Modelling of soil vibration from railway tunnels[J]．Journal of Sound and Vibration，2003，267( 23) : 605-619.

DOI: 10.1016/s0022-460x(03)00727-2

[3] Forrest J A，Hunt H E M． A three-dimensional model for calculation of train-induced ground vibration[J]．Journal of Sound and Vibration，2006，294( 1) : 678-709.

DOI: 10.1016/j.jsv.2005.12.032

[4] Hussein M F M，Hunt H E M． A numerical model for calculating vibration from a railway tunnel embedded in a full-space[J]． Journal of Sound and Vibration，2007，305( 1) : 401 -431.

DOI: 10.1016/j.jsv.2007.03.068

[5] ZHANG Yu-e，BAI Bao-hong． Study on the vibration response of tunnel subjected to high speed train loading[J]． Journal of Vibration and Shock，2001，20( 3) : 91-93， 102.

[6] CHEN Wei-jun，ZHANG Pu． Numerical simulation of dynamic response of overlap tunnels in close proximity due to train's vibrating load[J]． Rock and Soil Mechanics，2002， 23( 6) : 770-774.

[7] LI De-wu，GAO Fen，HAN Wen-fen． Study on rational structure of railway tunnel bed under dynamic vibration load[J]． Chinese Journal of Rook Mechanics and Engineering，2004， 23( 13) : 2292-2297.

[8] LI Liang，ZHANG Bing-qiang，YANG Xiao-li． Analysis of dynamic response of large cross -section tunnel under vibrating load induced by high speed train[J]． Chinese Journal of Rook Mechanics and Engineering，2005，24( 23) : 4259-4265.

[9] WANG Xiang-qiu，YANG Lin-de，ZHOU Zhi-guo． Dynamic response analysis of lining structure for tunnel under vibration loads of train[J]． Chinese Journal of Rook Mechanics and Engineering，2006，25( 7) : 1337 － 1342.

[10] HUANG Juan． Study on the vibration response and fatigue life of high-speed railway tunnels based on damage theory[D]． Changsha: School of Civil Engineering，Central South University，2010.