Studies on vibration generation and transmission in tack and ground from high-speed trains
高速列车粘地和地面振动产生与传播研究
基本信息
- 批准号:13650522
- 负责人:
- 金额:$ 2.5万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (C)
- 财政年份:2001
- 资助国家:日本
- 起止时间:2001 至 2002
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The present investigation focused first on the dynamic behavior of the track and the wave motions in the nearby ground where the train speed approaches the wave velocity in the underlying ground. Then, the vibration mitigation is considered by a rationally designed countermeasure of limestone columns beneath the track in view of the wave motions at site. For illustrative example, the case of X-2000 high-speed train at the West Coast in Sweden is demonstrated with some comparison with the field measurement.The present modeling of the track-ground system lead an excellent response prediction in comparison with the field measurements. The sleepers' effect on vibration is clarified in the frequency domain : namely, at the low train-speed of 70 km/h they generated the frequencies that are determined by the integer multiplied quotient of train speed against sleepers spacing, however, for 200 km/h the dynamic wave generation more dominates the response so that the sleepers' effect appears almost negligibly small. The velocity component, on the other hand, is greatly affected by the presence of sleepers for the train speed of 70 km/h but not for the 200 km/h. There are different situations we concern for response levels either by displacement, velocity or acceleration. The appropriate engineering judgment should be made on the basis of most involved physical quantities.For controlling of the track vibration the installment of lime-cement columns were made beneath it This worked as the wave impeding barrier and proved to be very effective to reduce the large response displacements for 200 km/h to the very small level for 70 km/h. The visual presentation is demonstrated for easy understanding of the behavior of track and the soil beneath it.
目前的研究首先集中在轨道的动力行为和附近地面上的波运动,当火车的速度接近在下面的地面上的波速。然后,根据现场的波动情况,合理设计轨道下灰岩柱的减振对策。以瑞典西海岸的X-2000高速列车为例,并与现场测量结果进行了比较。与现场实测结果相比,本文所建立的轨道-地面系统模型具有较好的响应预测效果。在频域上阐明了枕木对振动的影响,即在70 km/h的低列车速度下,枕木产生的频率由列车速度与枕木间距的整数乘商决定,而在200 km/h时,动力波的产生更主导响应,因此枕木的影响几乎可以忽略不计。另一方面,在列车速度为70 km/h时,轨枕的存在对速度分量的影响很大,而在200 km/h时,轨枕的存在对速度分量的影响不大。我们通过位移、速度或加速度来关注不同情况下的响应水平。应根据大多数涉及的物理量作出适当的工程判断。为控制轨道振动,在轨道下方设置石灰-水泥柱,起到阻波屏障的作用,将200 km/h时的大响应位移减小到70 km/h时的小响应位移,效果显著。为了便于理解轨道及其下面的土壤的行为,演示了可视化表示。
项目成果
期刊论文数量(28)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Takemiya, H.: "Simulation of track-ground vibrations due to high-speed train : The case of x-2000 at Lesdsgard"Journal of Sound and Vibration, Academic Press. 261(3). 503-526
Takemiya, H.:“高速列车引起的轨道地面振动模拟:Lesdsgard 的 x-2000 案例”声音与振动杂志,学术出版社。
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竹宮宏和, 前河隆太, 児島基成: "高速列車下の軌道-地盤系の2.5D FEMによる振動評価と制振法の検討"土木学会論文集. 710/I-60. 247-255 (2002)
Hirokazu Takemiya、Ryuta Maekawa、Motonari Kojima:“使用高速列车下轨道地面系统的 2.5D FEM 进行振动评估和阻尼方法研究”日本土木工程师学会论文集 710/I-60。 255(2002)
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Hirokazu Takemiya: "Controlling of track -ground vibration due high-speed train by WIB"Eurodyn2002, European Association for Structural Dynamics, Munich. 497-502 (2002)
Hirokazu Takemiya:“通过 WIB 控制高速列车引起的轨道地面振动”Eurodyn2002,欧洲结构动力学协会,慕尼黑。
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- 影响因子:0
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Takemiya, H. and Shimabuku, J.: "Application of soil-cement columns for better seismic design of bridge piles and mitigation of nearby ground vibration due to traffic"Journal of Structural Engineering. Vol.48A. 437-444 (2002)
Takemiya, H. 和 Shimabuku, J.:“应用水泥土柱进行更好的桥梁桩抗震设计并减轻交通引起的附近地面振动”结构工程杂志。
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- 影响因子:0
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Jorge Shimabuku and Hirokazu Takemiya: "Inelastic seismic response of bridge pier : Effects of superstructure characteristic and soil layering Structural Eng./Earthquake Eng."Proc. Japan Society of Civil Engineers. Vol.19, No.1. 11s-20s (2002)
Jorge Shimabuku 和 Hirokazu Takemiya:“桥墩的非弹性地震响应:上部结构特性和土壤分层的影响结构工程/地震工程”Proc。
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- 影响因子:0
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TAKEMIYA Hirokazu其他文献
TAKEMIYA Hirokazu的其他文献
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{{ truncateString('TAKEMIYA Hirokazu', 18)}}的其他基金
Development of a high damping and high resistance design of compound foundation accompanied by soil improvement
土壤改良复合地基高阻尼高阻设计开发
- 批准号:
17360214 - 财政年份:2005
- 资助金额:
$ 2.5万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Studies on vibration control system "Soil improvement enhanced pile foundation"
振动控制系统“土壤改良强化桩基”研究
- 批准号:
15360243 - 财政年份:2003
- 资助金额:
$ 2.5万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Development of CounterVibration Measure by Tire Fill-in WIB Method
轮胎填充WIB法防振措施的开发
- 批准号:
13555133 - 财政年份:2001
- 资助金额:
$ 2.5万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Studies on wave impeding block (WIB) procedure for vibration reduction
减振波阻块(WIB)程序的研究
- 批准号:
09555145 - 财政年份:1997
- 资助金额:
$ 2.5万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
SEISMIC DESIGN PROCEDURES FOR SOIL-STRUCTURE INTERACTION
土壤-结构相互作用的抗震设计程序
- 批准号:
07044154 - 财政年份:1995
- 资助金额:
$ 2.5万 - 项目类别:
Grant-in-Aid for international Scientific Research
STUDIES ON SEISMIC RESPONSE OF EXTENDED STRUCTURES IN IRREGULAR SITE AND THE RATIONAL DESIGN CONSIDERATIONS
不规则场地延伸结构地震响应研究及合理设计考虑
- 批准号:
04555111 - 财政年份:1992
- 资助金额:
$ 2.5万 - 项目类别:
Grant-in-Aid for Developmental Scientific Research (B)
Studies on Seismic Safety of Structure-Soil Interaction System and Its Rational Design Procedures
结构-土相互作用系统抗震安全性及其合理设计方法研究
- 批准号:
01044094 - 财政年份:1989
- 资助金额:
$ 2.5万 - 项目类别:
Grant-in-Aid for international Scientific Research
Hybrid Discrete Method for Seismic Response Analysis of Soil-Structure System with Topographical Site Consideration
考虑地形场地的土-结构系统地震响应分析的混合离散方法
- 批准号:
63550340 - 财政年份:1988
- 资助金额:
$ 2.5万 - 项目类别:
Grant-in-Aid for General Scientific Research (C)
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