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Does water lubrication affect friction differently for rocks and soils? Evidence and open questions Cover

Does water lubrication affect friction differently for rocks and soils? Evidence and open questions

By: F. Cafaro,  A. Hamad and  L. Monterisi  
Open Access
|Jul 2022

Abstract

The present paper focuses on the shear strength exhibited by rocks and soils when sliding along dry and wet surfaces, with this mechanism of failure being strongly related to the water lubrication phenomenon. It is well known that the frictional behaviour of geomaterials requires multiscale investigation. Under this perspective, experimental evidence of both friction at the grain scale (i.e. interparticle friction) and friction along sliding surfaces of rock and granular soil samples (i.e. surface friction) are analysed by using data from the literature. The review is addressed at linking different scales, stating the differences between rocks and soils in terms of frictional response to sliding and trying to point out still open problems for the research.

DOI: https://doi.org/10.2478/sgem-2022-0014 | Journal eISSN: 2083-831X | Journal ISSN: 0137-6365
Language: English
Page range: 211 - 223
Submitted on: Sep 4, 2021
Accepted on: May 24, 2022
Published on: Jul 27, 2022
Published by: Wroclaw University of Science and Technology
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2022 F. Cafaro, A. Hamad, L. Monterisi, published by Wroclaw University of Science and Technology
This work is licensed under the Creative Commons Attribution 4.0 License.