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Water Pressure Variation Properties Research in Non-ballasted Track Crack Interior under Fatigue Loading


Authors



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 xd7 1290 xd7 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 uff0c the relationship between the water pressure, loads amplitude and loads frequency can be fitted into a polynomial expression.


Keywords


Pages

Total Pages: 10

DOI
10.31209/2019.100000077


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Published

Online Article

JOURNAL INFORMATION


ISSN PRINT: 1079-8587
ISSN ONLINE: 2326-005X
DOI PREFIX: 10.31209
10.1080/10798587 with T&F
IMPACT FACTOR: 0.652 (2017/2018)
Journal: 1995-Present




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