KAUST DepartmentComputational Transport Phenomena Lab
Earth Science and Engineering
Earth Science and Engineering Program
Physical Science and Engineering (PSE) Division
Online Publication Date2021-01-21
Print Publication Date2021-03-25
Permanent link to this recordhttp://hdl.handle.net/10754/669262
MetadataShow full item record
AbstractWater uptake in rock fractures caused by rainfall plays a significant role in slope stability analysis. Since the fracture network system has complicated structures and multiple scales, the models based on the averaged system cannot account for these properties. On the other hand, a model describing a single fracture with fractal characteristics and surface roughness fails to deal with the case of multiple fractures at spatial scales. In this study, a fracture-network model is established to account for the complex structures and multiple scales of fractures. By considering the connectivity between fractures and the limited area of aquifer, capillary pressure formulations in different fractures are derived based on the Young-Laplace equation, and the final water level under specific rainfall conditions is also obtained. The cross-section shapes and exhaust conditions of rainwater infiltration have important influences on the final water level. The results indicate that the final water level is proportional to the ratio of perimeter to cross-section area when the fracture is a cylinder, and a circular pipe can reduce water level elevation in the fracture system.
CitationWang, J., Zhu, X., Pan, Y., Kou, J., & Sun, S. (2021). Water uptake in parallel fractures. Capillarity, 4(1), 1–12. doi:10.46690/capi.2021.01.01
SponsorsThe authors are grateful to the two anonymous reviewersfor their detailed reviews and constructive comments whichhelped to improve this manuscript.
PublisherYandy Scientific Press
Except where otherwise noted, this item's license is described as Archived with thanks to Capillarity. © The Author(s) 2021. This article is distributed under the terms and conditions of the Creative Commons Attribution (CC BY-NC-ND) license, which permits unrestricted use, distribution, and reproduction in any medium, provided theoriginal work is properly cited.