Analysis of crack evolution of expansive soil embankment under extreme arid climate
Source abstract
Abstract
With the increasing impact of global climate change, the frequency of extreme arid climates worldwide is rising. These extreme arid conditions can have adverse effects on expansive soil embankments. In this study, the digital image technology is used to study the crack development characteristics of expansive soil embankments. The findings indicate that the crack development process in expansive soil can be divided into three stages: slow development, rapid development, and stable development. During the drying process, cracks develop differently on the waterward side, the top of the embankment, and the backwater side of the embankment. Initially, cracks appear on the top of the embankment, and their degree of development is the highest in this area. The crack degree on the top of the embankment is approximately 2 to 3 times greater than that on the waterward and backwater sides. Furthermore, longitudinal cracks on the top of the embankment have been analyzed from both macro and micro perspectives. This study is expected to help analyze the underlying formation mechanisms of desiccation cracking-inducing geohazards and access the long-term performance of expansive soil embankments in arid climates.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Soil and Unsaturated Flow · Landslides and related hazards · Geotechnical Engineering and Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (39)
Show source-provided references
1. Effects of substrate on cracking patterns and dynamics in desiccating clay layers10.1002/2013WR014466 ↗
2. Laboratory characterization and discrete element modeling of shrinkage and cracking in clay layer10.1139/cgj-2016-0674 ↗
3. Three-dimensional characterization of desiccation cracking behavior of compacted clayey soil using X-ray computed tomography10.1016/j.enggeo.2019.04.014 ↗
4. Embankment dam cracking10.1016/0148-9062(75)90094-7 ↗
5. Volume change induced cracking of flood protection dikes built of clay
6. Desiccation cracking of soil layers
7. Influencing factors of geometrical structure of surface shrinkage cracks in clayey soils10.1016/j.enggeo.2008.05.005 ↗
8. Relationships between climate, vegetation, pore water pressures and the serviceability of clay slopes
9. An idealized framework for the analysis of cohesive soils undergoing desiccation: Discussion10.1139/t98-069 ↗
10. Numerical solution for consolidation and desiccation of soft soils10.1002/nag.196 ↗
11. Fundamentals of desiccation cracking of fine-grained soils: experimental characterisation and mechanisms identification10.1139/T09-054 ↗
12. Numerical and experimental study of initiation and propagation of desiccation cracks in clayey soils10.1016/j.compgeo.2018.09.015 ↗
13. Y. Zong-Ze, W. Jie, Y. Jun-Ping, C. Xue-Shan, Mechanism of slope slide of expansive soil and reinforcement for the slope, Journal of Hydraulic Engineering (2010).
14. Crack patterns in clayey soils: experiments and modeling10.1002/nag.1060 ↗
15. Study of evolution law of fissures of expansive clay under wetting and drying cycles
16. T. Chaosheng, STUDY ON DESICCATION CRACKING BEHAVIOUR OF EXPANSIVE SOIL, Journal of Engineering Geology (2012).
17. Model test on the dynamic characteristics of crack formation in expansive soil slopes under alternate drying and wetting10.1007/s11440-022-01700-8 ↗
18. Field survey of desiccation fissuring of flood embankments
19. Desiccation cracking at field scale on a vegetated infrastructure embankment10.1680/jgele.20.00108 ↗
20. Strength and durability assessment of expansive soil stabilized with recycled ash and natural fibers10.1016/j.trgeo.2021.100556 ↗
21. The relation between mineral composition and swelling character of swelling soil, rock and soil mechanics
22. Influence of clay content and montmorillonite content on swelling behavior of expansive soils10.1007/s40891-020-0186-6 ↗
23. Freeze-thaw and wetting-drying effects on the hydromechanical behavior of a stabilized expansive soil
24. Effects of microstructure on desiccation cracking of a compacted soil10.1016/j.enggeo.2019.105418 ↗
25. Discrete element modelling of desiccation cracking in thin clay layer under different basal boundary conditions10.1016/j.compgeo.2020.103931 ↗
26. Desiccation cracking of soil subjected to different environmental relative humidity conditions10.1016/j.enggeo.2022.106536 ↗
27. D.G. Fredlund, H. Rahardjo, Soil Mechanics for Unsatured Soils, Soil Mechanics for Unsatured Soils1993.10.1002/9780470172759 ↗
28. Quantification of desiccation cracks using X-ray tomography for tracing shrinkage path of compacted expansive soil
29. Y. Song, W.U. Jun-Hua, H. Jian-Feng, Effects of pore water surface tension and contact angle on dry-shrinkage cracking of expansive soils, Chinese Journal of Geotechnical Engineering (2017).
30. Desiccation shrinkage of non‐clayey soils: multiphysics mechanisms and a microstructural model10.1002/nag.2108 ↗
31. Influence of rice husk ash on the swelling and strength characteristics of expansive soil
32. Effect of human hair fiber reinforcement on shrinkage cracking potential of expansive clay10.1007/s10064-019-01685-x ↗
33. Shrinkage and desiccation cracking process of expansive soil and its temperature-dependent behaviour
34. Fundamentals of drying and air conditioning10.1021/ie50341a007 ↗
35. Effect of the moisture evaporative stages on the development of shrinkage cracks in soils
36. A modified surface-resistance approach for representing bare-soil evaporation: wind tunnel experiments under various atmospheric conditions10.1029/97WR01639 ↗
37. Z. Fu-Sheng, C. Ke-Rui, L. Song-Yu, D.U. Yan-Jun, W.U. Yan-Kai, Experimental study on cyclic swell-shrink behavior of expansive soils, Journal of Hef University of Technology(Natural ence) (2009).
38. D.G. Fredlund, H. Rahardjo, The role of unsaturated soil behaviour in geotechnical engineering practice, (1993).
39. Desiccation shrinkage of non‐clayey soils: multiphysics mechanisms and a microstructural model10.1002/nag.2108 ↗