In-situ monitoring and analysis of invert vibration characteristics in a railway tunnel

被引：0
作者：
Du M. [1 ]
Zhang D. [1 ]
Zhang S. [2 ]
Fang Q. [1 ]
Xiong L. [1 ]
机构：
[1] Tunnel and Underground Engineering Research Center of Ministry of Education, Beijing Jiaotong University, Beijing
[2] School of Civil Engineering, Qingdao Technologic University, Qingdao
来源：
Zhang, Dingli (zhang-dingli@263.net) | 2017年 / Chinese Vibration Engineering Society卷 / 36期
关键词：
In-situ test; Invert and its filling layer; Railway tunnel; Vibration acceleration;
D O I：
10.13465/j.cnki.jvs.2017.08.037
中图分类号：
学科分类号：
摘要：
In order to study the vibration characteristics of tunnel invert and tunnel invert filling, in-situ train induced vibration tests were performed in the second railway line of Lanzhou-Xinjiang. Attenuation and distribution laws of the vertical vibration acceleration in the tunnel invert and tunnel invert filling under different speeds and depths were Analyzed, and compared the results with numerical simulations. The analytical results indicate that with the certain speed, the vertical vibration acceleration response value decreases with the depth in a fast attenuation rate on the trains running side. The vertical vibration acceleration response value increases when the train running on double lines at the same time compare with running on a single line. Increased degree is related to the train running speeds. Numerical simulation results agree well with field tests results. Tunnel invert and its filling are the main carriers of bearing vibration acceleration, which should be the key point in design. The results have important significance for optimizing the supporting system of tunnel and ensuring train running safety. © 2017, Editorial Office of Journal of Vibration and Shock. All right reserved.
引用
收藏
页码：237 / 243
页数：6
相关论文
共 21 条
  • [1] Zhai W., Wang S., Influence of bridge structure stiffness on the dynamic performance of high-speed train-track-bridge coupled system, China Railway Science, 33, 1, pp. 19-26, (2012)
  • [2] Qu C., Wang Y., Wei L., Et al., In-situ test and analysis of vibration of subgrade for Wuhan-Guangzhou high-speed railway, Rock and Soil Mechanics, 33, 5, pp. 1451-1456, (2012)
  • [3] Li K., Liu W., Sun X., Et al., In-situ test and analysis on the vibration mitigation measures of the elevated line in Beijing metro line 5, China Railway Science, 30, 4, pp. 25-29, (2009)
  • [4] Chen G., Ground vibration analysis induced by high-speed train based on in-situ data, Chinese Journal of Rock Mechanics and Engineering, 34, 3, pp. 601-611, (2015)
  • [5] Zhan Y., Jiang G., Study of dynamic characteristics of soil subgrade bed for ballastless track, Rock and Soil Mechanics, 31, 2, pp. 392-396, (2010)
  • [6] Gao G., Li Z., Feng S., Et al., Experimental results and numerical predictions of ground vibration induced by high-speed train running on Qin-Shen railway, Rock and Soil Mechanics, 28, 9, pp. 1817-1822, (2007)
  • [7] Wang C., Chen Y., Analysis of stresses in train-induced ground, Chinese Journal of Rock Mechanics and Engineering, 24, 7, pp. 1178-1186, (2005)
  • [8] Huang J., Luo Q., Li J., Et al., Analysis on distribution of dynamic stresses of ballastless track subgrade surface under axle loading of vehicle, Journal of the China Railway Society, 32, 2, pp. 60-65, (2010)
  • [9] Du M., Zhang D., Fang Q., Et al., Dynamic response analysis of railways tunnel invert and its filling layer, China Railway Science, 37, 3, pp. 38-45, (2016)
  • [10] Costa P.A., Calcada R., Cardoso A.S., Track-ground vibrations induced by railway traffic: in-situ measurements and validation of a 2.5D FEM-BEM model, Soil Dynamics and Earthquake Engineering, 32, 1, pp. 111-128, (2012)
123