Influence of Metro Vehicle Operation on Adjacent High-Speed Railway Bridge Pier
Influence of Metro Vehicle Operation on Adjacent High-Speed Railway Bridge Pier
复制标题
地铁车辆运行对邻近高铁桥墩的影响
DOI：
10.1007/978-3-030-77238-3_72
复制
发表时间：
2021-09
期刊：
影响因子：
--
通讯作者：
Xiangliang Zhou
中科院分区：
文献类型：
--
作者：
Guohui Cheng;Yao Shan;Xiangliang Zhou
随着高速铁路网和地铁网络规模的不断扩大，这两种交通方式之间的交叉口越来越多。为了保证下穿既有高速高架线路的地铁隧道施工过程中的结构安全，在这两种不同类型的交通基础设施之间设置成排隔离桩已被广泛采用。然而，这些桩在地铁车辆运行过程中的隔振效果还没有得到很好的研究。在本文中，一个模型，占结构之间的相互作用（即，高速公路桥梁、隔震桩和地铁隧道）和地基的三维有限元模型，研究了隔震桩的隔震效果。研究了不同的隔震桩设计参数对整个体系振动特性的影响。此外，本文还总结了振动放大区波峰的形成规律。结果表明：（1）对于地表，隔振桩间距和直径对隔振效果影响较大;隔振桩的隔振效果随桩间距的增大而减弱，随桩径的增大而增强。(ii)对于高速桥梁墩顶，隔震桩的几何参数对隔震效果影响不大。(iii)桩径和桩间距的增大使振动放大区容易出现波峰。
The growing scale of the high-speed railway network and that of the metro leads to an increasing number of intersections between these two traffic modes. To ensure the structural safety during the construction process of metro tunnels constructed beneath existing high-speed elevated lines, rows of isolation piles between these two different kinds of traffic infrastructures have been widely utilized. However, the vibration isolation effect of these piles during the metro vehicle operation process is still not well studied. In this paper, a model that accounts for the interaction between structures (i.e., high-speed bridge, isolation piles and metro tunnels) and soil foundations is established by employing a three-dimensional finite element method to investigate the vibration isolation effect of the isolation piles. The influence of different design parameters of isolation piles on the vibration characteristics of the complete system is investigated. Besides, this paper summarizes the law of wave peaks formation in the vibration magnification area. The results show that: (i) For surface, vibration isolation effect is influenced greatly by the spacing and diameter of isolation piles. The vibration isolation effect of the isolation pile is weakened considerably with increasing pile net spacing and is enhanced with increasing pile diameter. (ii) For high-speed bridge pier top, geometric parameters of isolation piles have little effect on the isolation efficiency. (iii) The increase of pile diameter and spacing makes wave peaks appear easily in the vibration magnifications region.
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DOI：
10.1002/(sici)1097-0207(19991020)46:5
发表时间：
1999-10
影响因子：
2.9
作者：
S. Kattis;D. Polyzos;D. Beskos
通讯作者：
S. Kattis;D. Polyzos;D. Beskos
DOI：
--
发表时间：
2008
期刊：
Chinese Journal of Geotechnical Engineering
影响因子：
--
作者：
Nie Wei-dong
通讯作者：
Nie Wei-dong
影响因子：
5.3
作者：
P. Tsai;Zheng-Yi Feng;Tin-lon Jen
通讯作者：
P. Tsai;Zheng-Yi Feng;Tin-lon Jen
影响因子：
4
作者：
Kattis, SE;Polyzos, D;Beskos, DE
通讯作者：
Beskos, DE
影响因子：
1.5
作者：
Ding Guangya
通讯作者：
Ding Guangya