Effect of Freeze-thaw on the Shear Strength of Soil-rock Mixtures

DOI

10.2991/978-94-6463-726-7_48How to use a DOI?

Keywords

freeze-thaw cycle; soil-rock mixture; strength deterioration; evolution of pore structures

Abstract

In order to study the mechanism of shear strength deterioration of soil-rock mixtures under frost-thaw action, the frost-thaw soil-rock mixtures were studied by nuclear magnetic resonance (NMR) and triaxial shear tests. The results show that the shear strength deterioration of soil-rock mixtures with varying moisture rates is different under frost-thaw action, and the higher the moisture content, the more serious the deterioration of shear strength. The porosity increases first and decreases and increases, and the pore structure first developed from micropores and mesopores to macropores, and then macropores collapsed to evolve into micropores. The evolution of the structure of pores in soil-rock mixtures can better respond to the changes in shear strength and can better reveal the deterioration mechanism of shear strength.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Shenqi Yang
AU  - Wen Sun
PY  - 2025
DA  - 2025/06/13
TI  - Effect of Freeze-thaw on the Shear Strength of Soil-rock Mixtures
BT  - Proceedings of the 2024 6th International Conference on Hydraulic, Civil and Construction Engineering (HCCE 2024)
PB  - Atlantis Press
SP  - 496
EP  - 502
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-726-7_48
DO  - 10.2991/978-94-6463-726-7_48
ID  - Yang2025
ER  -