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Stress–dilatancy relationship for railway ballast

Katarzyna Dołżyk-Szypcio
Katarzyna Dołżyk-Szypcio
   | 03 paź 2018
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Article Category: Research Article
Data publikacji: 03 paź 2018
Zakres stron: 79 - 85
Otrzymano: 23 mar 2018
Przyjęty: 26 cze 2018
DOI: https://doi.org/10.2478/sgem-2018-0018
Słowa kluczowe
© 2018 Katarzyna Dołżyk-Szypcio et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Figure 1

Scheme of stress ratio–plastic dilatancy relationship.
Scheme of stress ratio–plastic dilatancy relationship.

Figure 2

Relationships for dry scaled ballast: (a) q–εa; (b) ευ–εa; (c) Gs–εa; and (d) η–Dp.
Relationships for dry scaled ballast: (a) q–εa; (b) ευ–εa; (c) Gs–εa; and (d) η–Dp.

Figure 3

Relationships for saturated scaled ballast: (a) q–εa; (b) ευ–εa; (c) Gs–εa; and (d) η–Dp.
Relationships for saturated scaled ballast: (a) q–εa; (b) ευ–εa; (c) Gs–εa; and (d) η–Dp.

Figure 4

Relationships for fouled ballast at 4% water content: (a) q–εa; (b) ευ–εa; (c) Gs–εa; and (d) η–Dp.
Relationships for fouled ballast at 4% water content: (a) q–εa; (b) ευ–εa; (c) Gs–εa; and (d) η–Dp.

Figure 5

Relationships for fouled ballast at 4% and 12% water contents: (a) q–εa; (b) ευ–εa; (c) Gs–εa; and (d) η–Dp.
Relationships for fouled ballast at 4% and 12% water contents: (a) q–εa; (b) ευ–εa; (c) Gs–εa; and (d) η–Dp.

Experimental conditions and elastic parameters of scaled railway ballast.

σcweoκν
[kPa][–][–][–]
15Dry0.7740.00270.30
250.8010.00270.30
600.7590.00270.30
1150.7710.00270.30
2000.7740.00270.30
15Saturated0.7870.00270.30
200.7810.00270.30

Characteristic points and stress–dilatancy parameters for fouled railway ballast.

σcwεa [%]Parameters α and β
[kPa][%]Y1Y2Fα1β1α2β2α3β3
304.00.160.703.0–0.801.50–0.901.000.002.20
1004.00.051.006.0–1.604.00–0.700.600.002.20
2004.00.051.0010.0–0.903.40–0.081.500.002.20
4004.00.051.5010.5–1.703.200.001.200.001.20
10012.00.050.6510.5–1.505.700.001.900.001.90
40012.00.051.60––2.303.400.001.30––

Experimental conditions and elastic parameters of fouled railway ballast.

σcweoκν
[kPa][–][–][–]
304.00.3500.00130.27
1004.00.3500.00150.27
2004.00.3500.00200.27
4004.00.3500.00300.27
10012.00.3500.00180.27
40012.00.3500.00450.27

Characteristic points and stress–dilatancy parameters for scaled railway ballast.

σcwεa [%]Parameters α and β
[kPa]Y1Y2Fα1β1α2β2α3β3
15Dry0.100.304.00–0.70–3.50.281.60–0.101.30
250.150.505.50–0.30–3.50.221.500.001.20
600.100.605.50–0.153.50.001.50–0.351.00
1150.100.908.00–0.654.20.051.60–0.630.30
2000.101.110.00–0.101.90.001.80–0.001.80
15Saturated0.150.4010.500.25–3.50.201.50–0.051.30
2000.121.1510.000.052.2–0.152.050.001.50
eISSN:
2083-831X
Język:
Angielski
Częstotliwość wydawania:
4 razy w roku
Dziedziny czasopisma:
Geosciences, other, Materials Sciences, Composites, Porous Materials, Physics, Mechanics and Fluid Dynamics
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