Open Access
ARTICLE
Water Pressure Variation Properties Research in Non-ballasted Track Crack Interior under Fatigue Loading
Xu Gui-Hong1, Zhang Wei-Biao2, Liao Hua-Rong1, Yang Rong-Shan3
1 Guizhou Institute of Technology, Guiyang, 550003, China
2 China Railway 24 Bureau Group Co., Ltd., Sichuan Chengdu.610031, China
3 Southwest Jiaotong University, School of Civil Engineering, Sichuan Chengdu.610031, China
* Corresponding Author: Xu Gui-hong,
Intelligent Automation & Soft Computing 2019, 25(4), 735-743. https://doi.org/10.31209/2019.100000077
Abstract
This paper reports the experimental study of water pressure properties inside
crack of Non-ballasted track structure. Pre-existing crack concrete specimens
with 510 × 1290 × 80mm dimensions were produced, and fluid-fracture
interaction tests under cyclic loading were performed. The water pressure were
measured at different locations inside cracks and with different loading
frequencies as well as amplitudes. By using the experimental data, then is
employed to investigate the water pressure distribution inside cracks affected
by both the frequency and amplitude under cyclic loading. From this study, it
was determined that the water pressure of cracks alternates between positive
and negative values under cyclic loading, and increase with the increase of
crack depth, loads amplitude and loads frequency. Furthermore , the
relationship between the water pressure, loads amplitude and loads frequency
can be fitted into a polynomial expression.
Keywords
Cite This Article
X. Gui-Hong, Z. Wei-Biao, L. Hua-Rong and Y. Rong-Shan, "Water pressure variation properties research in non-ballasted track crack interior under fatigue loading,"
Intelligent Automation & Soft Computing, vol. 25, no.4, pp. 735–743, 2019. https://doi.org/10.31209/2019.100000077