(1. Geotechnical and Structural Engineering Research Center,Shandong University,Jinan,Shandong 250061,China;
2. School of Civil and Hydraulic Engineering,Shandong University,Jinan,Shandong 250061,China)
Abstract:The visco-elastic artificial boundary was analyzed to be suitable for the layer rock. Taking the Qingdao metro line #3 as the studying subject,the computation model was constructed to study the effects of rock elastic modulus,tunnel depth as well as tunnel lining thickness on the rock environmental vibration response induced by the metro train. The results show that the variations of rock elastic modulus at different depths generate different effects on the rock environmental vibration response. There is only one amplification zone of vertical acceleration at the free surface of rock environment with great elastic modulus,where the acceleration amplification zone is at the tunnel upward of free surface. The vibration effects of metro trains on free surface increase with the decrease of tunnel depth. The tunnel lining thickness has few effects on the rock environmental vibration response induced by the metro train.
张 波1,2,李术才1,2,张敦福1,2,薛翊国1,王锡平2. 岩石介质中地铁列车运行引起的环境振动响应研究[J]. 岩石力学与工程学报, 2011, 30(S1): 3341-3347.
ZHANG Bo1,2,LI Shucai1,2,ZHANG Dunfu1,2,XUE Yiguo1,WANG Xiping2. RESEARCH ON ROCK ENVIRONMENTS VIBRATION RESPONSE INDUCED BY METRO TRAINS IN ROCK MEDIA. , 2011, 30(S1): 3341-3347.
严 涛,肖新标,金学松,等. 地铁列车运行引起的环境振动三维数值分析[J]. 铁道建筑,2010,(7):67-69.(YAN Tao,XIAO Xinbiao,JIN Xuesong,et al. The three-dimensional numerical study on environment vibration caused by moving metro trains[J]. Railway Engineering,2010,(7):67-69.(in Chinese))
[5]
文 强. 地铁列车引起的自由场地振动规律及对周围建筑物的影响研究[博士学位论文][D]. 北京:北京交通大学,2008.(WEN Qiang. Study on free field vibrations induced by metro trains and their influences on surrounding buildings[Ph. D. Thesis][D]. Beijing:Beijing Jiaotong University,2008.(in Chinese))
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