客运专线富水黄土隧道隧底振动特性试验研究

薛富春;马建林;颜利平;喻渝;杨建民

振动与冲击 ›› 2010, Vol. 29 ›› Issue (2) : 202-207.

PDF(2015 KB)
PDF(2015 KB)
振动与冲击 ›› 2010, Vol. 29 ›› Issue (2) : 202-207.
论文

客运专线富水黄土隧道隧底振动特性试验研究

  • 薛富春1;马建林1;颜利平2;喻渝3;杨建民3
作者信息 +

Experimental Study on Vibration Characteristics of a Water-Rich Loess Tunnel Based at a Dedicated Passenger Line

  • XUE Fuchun1;MA Jianlin1;YAN Liping2;YU Yu3;YANG Jianmin3
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文章历史 +

摘要

当高速列车通过时,将导致隧道出现振动现象。在此条件下,修建于富水黄土地基上的隧道能否满足振动安全要求,是困扰郑州至西安客运专线建设的难题之一,国内外没有任何经验可借鉴。为解决该问题,开展了模拟高速列车振动效应的激振试验,得出了不同激振频率下的振动速度在隧道仰拱结构深度方向、仰拱填充面横向和纵向的变化规律,也得出了隧底富水黄土中振动速度的变化规律。试验结果表明,隧道结构和隧底黄土中的振动速度均不大。综合分析后可以判定,列车引起的振动不足以对隧道产生明显影响,富水黄土隧道满足客运专线运营要求。

Abstract

When a high-speed train passes a tunnel, it will result in vibration. Under these conditions, if the tunnel founded on water-rich loess can meet the safety requirements of vibration is a one of the challenges during the construction of the Zhengzhou-to-Xi'an Passenger Dedicated Line, because there is no experience that can be learnt from at home or abroad. To deal with this problem, an experimental study was performed by conducting forced excitation tests simulating the effect of high-speed train. Based on the results of the tests, the variations of the vibration velocity under different excitation frequencies were obtained along the tunnel direction for the upward arch liner structure and along both the horizontal and vertical directions of the upward arch liner filled cross-section. Furthermore, the variations of the vibration velocity within the water-rich loess were also obtained from the tests. The test results show that vibration velocities at both the tunnel structure and the loess are not large. After a comprehensive analysis, it can conclude that the train-induced vibration is not sufficient to have a significant effect on the tunnel and the water-rich loess tunnel can meet the operational requirements of the passenger dedicated line.

关键词

隧道 / 振动速度 / 激振试验 / 富水黄土 / 客运专线

Key words

Tunnel / Vibration velocity / Force-excitation test / water-rich loess / Passenger dedicated line

引用本文

导出引用
薛富春;马建林;颜利平;喻渝;杨建民. 客运专线富水黄土隧道隧底振动特性试验研究[J]. 振动与冲击, 2010, 29(2): 202-207
XUE Fuchun;MA Jianlin;YAN Liping;YU Yu;YANG Jianmin . Experimental Study on Vibration Characteristics of a Water-Rich Loess Tunnel Based at a Dedicated Passenger Line [J]. Journal of Vibration and Shock, 2010, 29(2): 202-207

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