Temperature Field Analysis on CA Mortar Ballastless Track of High-Speed Railway

被引：4

作者：

Fu, Jun ^{[1
]}

Qin, Yu ^{[1
]}

Yu, You Yun ^{[2
]}

Ye, Meng Jun ^{[2
]}

Li, Lian Xin ^{[2
]}

机构：

[1] Wuhan Univ Technol, Sch Transportat, Wuhan 430063, Peoples R China

[2] Hongyuan Rd Construct Inspect Management Corp, Yichang 443000, Peoples R China

来源：

MATERIALS SCIENCE AND NANOTECHNOLOGY I | 2013年 / 531-532卷

基金：

中国国家自然科学基金;

关键词：

High-speed railway; CA mortar; Ballastless track; Temperature field; Thermal analysis;

D O I：

10.4028/www.scientific.net/KEM.531-532.163

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

As an important cushion layer, CA mortar ballastless track is crucial to the durability, safety of high-speed railway and the high-speed railway is influenced by the external environment. The regulation of temperature field evolvement of ballastless track is analyzed in this paper through a two-dimensional, transient finite element model built by ANSYS. The results show that the temperature of structure section caused by solar radiation and circumstances temperature is decreasing along depth in sunlight, and the internal temperature of structure is higher than the surface temperature at night. The integral temperature field of structure reaches the maximum at 1:00 p.m. and the vertical difference of the temperature inside the structure is also the largest, causing the most obvious temperature stress, which provides theoretical data for systematic research on ballastless track of high-speed railway.

引用

页码：163 / +

页数：2

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