An improved analytical model for rainfall infiltration in embankment slope constructed with red-bed solid waste

Rainfall infiltration is one of the key triggering factors of landslide in embankment slope constructed with red-bed solid waste, so rainfall infiltration analytical model plays a critical role in the landslide prediction. However, the complexity of the red-bed solid waste slope’s components has not be considered by the conventional Green-Ampt infiltration model, which has also ignored the influence of the dynamic variation of unsaturated section in the wetted zone of slope under rainfall infiltration. This study proposed an improved rainfall infiltration analytical model for red-bed solid waste slope considering the properties of rock fragments and the dynamic development of saturated–unsaturated proportion in the wetted zone, and developed a solution program for the improved model. The proposed model was validated by comparing the rainfall infiltration experiment, finite element numerical simulation, and traditional Green-Ampt method. The proposed model was then applied to parameter sensitivity analyses to reveal the rainfall infiltration characteristics of red-bed solid waste slope. The results indicate that the rainfall infiltration model proposed in this work perform better to predict the rainfall infiltration process of red-bed solid waste slope, and it will lay the groundwork for more reliably utilizing the red-bed solid waste in transportation geotechnics.

• Record URL:
  • https://doi.org/10.1016/j.trgeo.2024.101207
• Record URL:
  • http://www.sciencedirect.com/science/article/pii/S221439122400028X
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/22143912
• Supplemental Notes:
  • © 2024 Elsevier Ltd. All rights reserved. Abstract reprinted with permission of Elsevier.
• Authors:
  • Jiang, Jianqing
  • Luo, Shilin
  • Chang, Jin
  • Zhang, Rui
• Publication Date: 2024-3

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: 101207
• Serial:
  • Transportation Geotechnics
  • Volume: 45
  • Issue Number: 0
  • Publisher: Elsevier
  • ISSN: 2214-3912
  • Serial URL: http://www.sciencedirect.com/science/journal/22143912

Subject/Index Terms

• TRT Terms: Embankments; Geotechnical engineering; Infiltration; Mathematical models; Rainfall; Solid wastes
• Subject Areas: Geotechnology; Highways; Maintenance and Preservation;

Filing Info

• Accession Number: 01912694
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 21 2024 11:04AM