Permanent deformation characteristics of unsaturated subgrade soils under cyclic loading
Source abstract
Abstract
Excess permanent deformation of subgrade may cause critical rutting in pavements, and subsurface water significantly affects the accumulation of permanent deformation. This study aims to reveal the permanent deformation behaviour of unsaturated subgrade soils. Subgrade box tests were performed at varying moisture content, stress levels and loading frequency, respectively. The test results show that the permanent deformation significantly increased with moisture content. The concept of a permitted moisture content-applied dynamic load envelope was proposed. Based on curve fitting, a prediction model of permanent deformation of subgrade soils was developed, and the effects of moisture content and loading cycles were included. The validation results show that the model exhibited reasonably good performance in modelling the deformation. This study may provide an alternative way for predicting the permanent deformation of unsaturated subgrade soils.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Geotechnical Engineering and Soil Stabilization · Geotechnical Engineering and Underground Structures · Soil and Unsaturated Flow
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (50)
Show source-provided references
1. S.F. BrownAchievements and challenges in asphalt pavement engineering. in Proc. of 8th Int. Conf. on Asphalt Pavements, Seattle1997.
2. The effects of subgrade clay condition on the structural behaviour of road pavements
3. Prediction of permanent deformation in flexible pavement materials
4. Sweere, G.T., Unbound granular bases for roads. 1990, Delft University of Technology, Netherlands.
5. Incorporating elasto-plasticity in granular layer pavement design
6. Modelling permanent deformation behaviour of unbound granular materials10.1016/S0950-0618(97)00078-0 ↗
7. Permanent deformation characterization of subgrade soils from RLT test10.1061/(ASCE)0899-1561(1999)11:4(274) ↗
8. Calibration of alligator fatigue cracking model for 2002 design guide10.1177/0361198105191900109 ↗
9. A new material model for permanent deformations in pavements
10. Permanent strain modeling of recycled concrete aggregate for unbound pavement construction10.1061/(ASCE)MT.1943-5533.0000697 ↗
11. Permanent strain of unsaturated unbound granular materials from construction and demolition waste10.1061/(ASCE)MT.1943-5533.0001052 ↗
12. Development of a new mechanistic empirical rutting model for unbound granular material10.1061/(ASCE)MT.1943-5533.0001555 ↗
13. Prediction of permanent deformation for subgrade soils under traffic loading in southern China
14. In situ monitoring of the long-term settlement of high-fill subgrade
15. A review on the resilient response of unsaturated subgrade soils10.1155/2020/7367484 ↗
16. Chapman And Hall, Limited.; London
17. Some recent research on the bearing capacity of foundations10.1139/t63-003 ↗
18. Bearing capacity of strip and circular footings in sand using finite elements10.1016/j.compgeo.2009.01.012 ↗
19. Cumulative deformation prediction and microstructure change of coarse-grained soil under cyclic loading10.1016/j.soildyn.2023.108136 ↗
20. Dawson, A. and F. Wellner, Plastic Behavior of Granular Materials. 1999, University of Nottingham: United Kingdom.
21. Permanent deformation behavior of granular materials and the shakedown concept10.3141/1757-09 ↗
22. Serviceability design of granular pavement materials
23. Fei, Q., Performance and Maintenance of Fouled Ballast. 2015, University of Nottingham.
24. Quantifying the relative strengths of railway ballasts10.1680/geng.2005.158.2.107 ↗
25. Comparison of ballast index tests for railway trackbeds10.1680/geng.2004.157.3.151 ↗
26. Influence of rubber sheet on dynamic response of machine foundations10.1016/j.conbuildmat.2020.121788 ↗
27. A study into the use of crumb rubber in railway ballast10.1016/j.conbuildmat.2014.10.045 ↗
28. Thom, N., Principles of pavement engineering. 2008: Thomas Telford London.
29. Brown, S.F., S.C. Loach, and M.P. O'Reilly, Repeated loading of fine grained soils, D.o. Transport, Editor. 1987, Transport and Road Research Laboratory and Transport Research Laboratory.
30. Resilient modulus models for compacted cohesive soils10.3141/1874-13 ↗
31. Variation of resilient modulus with soil suction for compacted subgrade soils10.1177/0361198105191300110 ↗
32. Zaman, M. and N. Khoury, Effect of soil suction and moisture on resilient modulus of subgrade soils in Oklahoma. 2007, University of Oklahoma: Norman, Oklahoma.
33. Environmental influences on the engineering behavior of unsaturated undisturbed subgrade soils: effect of soil suctions on resilient modulus10.3328/IJGE.2009.03.02.303-311 ↗
34. Effect of suction on resilient modulus of compacted fine-grained subgrade soils
35. Prediction of subgrade resilient modulus for flexible pavement design10.5897/SRE11.846 ↗
36. Relationship between resilient modulus and suction for compacted subgrade soils10.1016/j.enggeo.2016.06.020 ↗
37. Resilient modulus–moisture content relationships for pavement engineering applications10.1080/10298436.2016.1199877 ↗
38. Prediction of resilient modulus with consistency index for fine-grained soils10.1016/j.trgeo.2021.100650 ↗
39. A revised and extended formula for bearing capacity
40. Analysis of ultimate loads of shallow foundations10.1061/JSFEAQ.0001846 ↗
41. Subgrade soil index properties to estimate resilient modulus for pavement design10.1080/10298430500140891 ↗
42. Field study of in situ subgrade soil response under flexible pavements10.3141/1639-03 ↗
43. Structural Design of Railway Trackbeds: Relative Effects of Various Factors
44. Huang · 2004
45. DCE-MRI of the liver: effect of linear and nonlinear conversions on hepatic perfusion quantification and reproducibility10.1002/jmri.24341 ↗
46. Experimental study on the stability of railroad silt subgrade with increasing train speed10.1061/(ASCE)GT.1943-5606.0000282 ↗
47. Cumulative settlement of track subgrade in high-speed railway under varying water levels10.1080/23248378.2014.959083 ↗
48. Water impact on the behaviour of flexible pavement structures in an accelerated test10.1080/14680629.2013.779308 ↗
49. Permanent deformation behavior of unbound granular base materials with varying moisture and fines content10.1016/j.trgeo.2015.06.001 ↗
50. Empirical models for permanent deformation of subgrade soils from the data collected at the pavement subgrade performance study10.1061/(ASCE)MT.1943-5533.0001785 ↗