|
|
|
| Test and Analysis of the Dynamic Stress of CA Mortar near Culvert on the Sui-Yu Ballastless Track Railway |
| XIANG Ying-hui1，LUO Qiang1，WEI Yong-xing2 |
| 1. Southwest Jiaotong University, Chengdu, Sichuan 610031,China;2. China Railway Eryuan Engineering Group Co. Ltd, Chengdu，Sichuan 610031，China |
|
|
|
|
Abstract Research purposes: This paper studies the operation security of the ballastless track further and accumulates data for researching the dynamics characteristics of the ballastless track subgrade-culvert transition. The MOR organized the comprehensive field test on Suining-Chongqing Railway ballasdess track.
Research conclusions: Since the multiple units has the characteristics of light axle load，good performances of vehicle vibration, the CA mortar dynamic stress of it is relatively smaller than that of the heavy haul freight train, and the dynamic role to the railway of the multiple units is relatively not significant. In comparison, the influence of the axle weight is larger than the speed. The axle weight and speed does not impact on the distribution rule of the transition dynamic stress in the direction of the railway line.
|
|
Received: 23 April 2008
|
|
|
|
|
|
[1] 铁道科学研究院.无砟轨道试验研究及应用现状[R]. 北京:铁道科学研究院,2004.
[2] 姚力，翟婉明，罗震.遂渝线路基上板式无砟轨道结构设 计研究[J].铁道工程学报，2006(5)：51-54.
[3] 魏永幸，蒋关鲁.无砟轨道路基关键技术探讨—以遂 渝线无砟轨道综合试验段为列[J].铁道工程学报，2006 (5)：39-44.
[4] 韩自力，张千里.既有线提速路基动应力分析[J].中国 铁道科学，2005,26(5):1-5.
[5] 张泉，罗强.遂渝铁路刚性路基动应力测试分析[J].铁 道标准设计，2006(2):18-20..
[6] 张国祥，方万进.高速铁路涵洞附近路基动力响应试验 研 [J].铁道标准设计，2005(1):49-50.
[7] 王其昌.高速铁路土木工程[M].成都:西南交通大学出 版社，1999.
|
|
|
|
2008, Vol. 25 
