高速铁路路堤与高架桥过渡段软土振动频谱特征与对比分析

›› 2018, Vol. 32 ›› Issue (1): 35-41.

高速铁路路堤与高架桥过渡段软土振动频谱特征与对比分析

丁坤鹏

（同济大学土木工程学院地下建筑与工程系，上海 200000 ）

收稿日期:2017-12-01 修回日期:2017-12-19 出版日期:2018-02-20 发布日期:2018-03-01
作者简介:丁坤鹏(1993-)，男，在读硕士研究生，研究方向为城市工程地质与工程地质环境效应。

Spectral Characteristics and Comparative Analysis Vibrations of the Transition Zone of High-Speed Rail Embankment and Viaduct

DING Kunpeng

(Department of Underground Architecture and Engineering, School of Civil Engineering, Tongji University, Shanghai 200000)

Received:2017-12-01 Revised:2017-12-19 Online:2018-02-20 Published:2018-03-01

摘要/Abstract

摘要： 高速列车通过时线路两侧软土振动的频谱特性及其衰减规律决定了线路周围环境的优良程度。以广深高铁庆盛站到狮子洋隧道口段为例，分别对路堤段、路堤-高架桥过渡段以及高架桥段的振动数据进行实测。着重对路堤至高架桥的过渡段进行详细分析，了解振动波在时域和频域的分布特点、振动强度及其衰减规律，并用回归分析的方法计算出了广深高铁路堤—高架桥过渡段高速列车引起软土振动的衰减公式；最后通过横向对比路堤段、路堤-高架桥过渡段以及高架桥段的时域和频域振动特性，对其间的差异进行细致的研究，并探讨了造成差异的可能原因。

关键词: 高铁振动, 广深港客运专线, 过渡段软土振动, 振动特性横向对比

Abstract: While the highspeed rail provides a new and efficient travel experience to the public, the impact of the vibrations induced by the operational highspeed rail on the adjacent residents and buildings require detailed investigation. The vibration spectrum and dissipation characteristics in the soft soils underneath the rail alignment is critical to the evaluation of the adjacent environmental quality. In this paper, the highspeed rail segment between Qingsheng station and Shiziyang tunnel in GuangzhouShenzhen passenger rail line is used for the vibration study, the vibrations in the embankment zone, embankment and viaduct transition zone and viaduct zone, especially, the vibration characteristics of the transition zone which received less attention previously, were field monitored and studied. The time and spectrum distribution characteristics, intensity as well as dissipations are statistically analyzed. The dissipation formula of vibration in the transition zone was developed. The time and frequency differences among the vibrations in embankment zone, transition zone and viaduct zone are discussed and the possible factor that could result in these differences are explored.
\=
〖WTHZ〗Key words\ 〖WTBZ〗
〖WT〗〖ST〗〖HT〗

Key words: high-speed train induced vibration, guangzhou-shenzhen passenger railway, vibration in soft soil transition zone, vibration characteristics in the transverse direction

丁坤鹏. 高速铁路路堤与高架桥过渡段软土振动频谱特征与对比分析[J]. , 2018, 32(1): 35-41.

DING Kunpeng. Spectral Characteristics and Comparative Analysis Vibrations of the Transition Zone of High-Speed Rail Embankment and Viaduct[J]. , 2018, 32(1): 35-41.