Study on Seepage Characteristics of Soil-rock Mixture Considering the Influence of Gap Grading Conditions
- DOI
- 10.2991/978-94-6463-650-5_32How to use a DOI?
- Keywords
- Soil-rock Mixture; Gap interval; Gap-graded; Seepage characteristics; Permeability coefficient
- Abstract
The seepage action leads to a significant loss of fine particles in soil-rock mixtures, which is the primary reason for the seepage failure of hydraulic structures. Existing research mainly focuses on the comprehensive effects of varying fine particle content and confining pressure on the seepage characteristics of soil-rock mixtures, with little attention given to the evolutionary characteristics of seepage under different gap intervals and particle size continuity conditions. Based on this, this paper conducts indoor GDS triaxial permeability tests and coupled numerical simulations to study the effects of gap intervals and particle size continuity on the seepage characteristics of soil-rock mixtures. The results indicate that when the gap interval remains the same, an increase in particle size continuity inhibits the development of internal pores within the soil-rock mixture, leading to a decreasing trend in the permeability coefficient of the samples. Meanwhile, expanding the gap interval reduces the occurrence of local blockage and particle accumulation within the skeletal pores, resulting in an increase in the permeability coefficient of the samples.
- 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.
Cite this article
TY - CONF AU - Qiong Wu AU - Mengkai Lin AU - Wen Sun AU - Jing Wu AU - Shenqi Yang AU - Jiangjiang Zhang PY - 2025 DA - 2025/01/31 TI - Study on Seepage Characteristics of Soil-rock Mixture Considering the Influence of Gap Grading Conditions BT - Proceedings of the 2024 7th International Conference on Civil Architecture, Hydropower and Engineering Management (CAHEM 2024) PB - Atlantis Press SP - 306 EP - 311 SN - 2352-5401 UR - https://doi.org/10.2991/978-94-6463-650-5_32 DO - 10.2991/978-94-6463-650-5_32 ID - Wu2025 ER -