Study of the Effect of Cement Asphalt Mortar Disease on Mechanical Properties of CRTS II Slab Ballastless Track-Reference-Cited by-同舟云学术

Study of the Effect of Cement Asphalt Mortar Disease on Mechanical Properties of CRTS II Slab Ballastless Track

Published:2014-04 Issue: Volume:906 Page:305-310
ISSN:1662-8985
Container-title:Advanced Materials Research
language:
Short-container-title:AMR

Author:

Liu Fu Shan¹,Zeng Zhi Ping¹,Wu Bin¹,Zhang Zhi Chao¹,Peng Kui¹

Affiliation:

1. Central South University

Abstract

This paper built the three dimension mechanics model of CRTSII slab ballastless track structure on subgrade with ANSYS software. Analysis the influence of deformation and stress characteristics caused by different temperature gradients and the coupling action of temperature gradients and train loads under different work conditions, including no-separated, separated, and multiple-slabs separated with the cement asphalt mortar layer. The results show that, temperature gradients on track slab is one of the main reasons which caused the gap appearing between the bottom of slab track and cement asphalt mortar elastic cushion. And the joint main cause the deterioration of vibration of track slab, accelerating the deterioration of the cement asphalt mortar layer.

Publisher

Trans Tech Publications, Ltd.

Subject

General Engineering

Link

https://www.scientific.net/AMR.906.305.pdf

Reference12 articles.

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2. Li WANG, Ping WANG. Common Deterioration Phenomena and Effect Analysis of Mortar Bed on CRTⅡTrack Structure. Railway Standard Design, 2012, (11): 11-14. In Chinese.

3. Cheng-xiao WANG. Study of CRTS Ⅲ Ballastless Track Mechanical Properties. Beijing: Beijing Jiaotong University, 2011. 06. In Chinese.

4. Qing-yuan XU, Bin LI, Xiao-lin ZHOU. Dynamic coefficient of slab track system on subgrade under high-speed trains. Journal of Central South University, 2011, 42(9): 2831-2836. In Chinese.

5. Xiao-lin SONG, Wan-ming ZHAI. Dynamic Stress Distribution of the Infrastructure of CRTSⅡ Slab Ballastless Track under High Speed Moving Load. China Railway Science, 2012, 33(4): 1-7. In Chinese.

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