Study on Dilatancy of Coarse-Grained Soft Rock by Large-scale Triaxial Test

Hanwen Liang; Xianlin Liu; Yu Shao; Sheng Zeng; Xilin Lü

doi:10.2991/978-94-6463-658-1_83

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Study on Dilatancy of Coarse-Grained Soft Rock by Large-scale Triaxial Test

Authors

Hanwen Liang¹, Xianlin Liu¹^{, 2}, Yu Shao², Sheng Zeng³, Xilin Lü¹^{, 3}^{, *}

¹Department of Geotechnical Engineering, Tongji University, Shanghai, 200092, China

²Guangxi Transportation Design Group Co., Ltd, Nanning, 530029, China

³Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai, 200092, China

^*Corresponding author. Email: xilinlu@tongji.edu.cn

Corresponding Author

Xilin Lü

Available Online 3 March 2025.

DOI: 10.2991/978-94-6463-658-1_83 How to use a DOI?
Keywords: Soft Rock; dilatancy; large scale triaxial
Abstract: Coarse-grained soft rock fill materials can deteriorate due to water-rock interactions, potentially compromising the performance of the embankment subgrade. The dilatancy of this soft rock, as an important proxy to evaluate shearing response, was investigated in this paper. A series of large-scale triaxial drained tests were conducted on the medium-dense to dense soft rock fills. Test results showed that medium-dense soft rock samples owned continuous contraction, while dense samples exhibited only very slight dilation. Compared with other dense coarse-grained materials and sandy soils, where the gradation of the soft rock fell among them, the soft rock exhibited the least dilatancy and significant particle breakage during shearing.
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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Volume Title: Proceedings of the 2024 10th International Conference on Architectural, Civil and Hydraulic Engineering (ICACHE 2024)
Series: Advances in Engineering Research
Publication Date: 3 March 2025
ISBN: 978-94-6463-658-1
ISSN: 2352-5401
DOI: 10.2991/978-94-6463-658-1_83 How to use a DOI?
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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ris enw bib

TY  - CONF
AU  - Hanwen Liang
AU  - Xianlin Liu
AU  - Yu Shao
AU  - Sheng Zeng
AU  - Xilin Lü
PY  - 2025
DA  - 2025/03/03
TI  - Study on Dilatancy of Coarse-Grained Soft Rock by Large-scale Triaxial Test
BT  - Proceedings of the 2024 10th International Conference on Architectural, Civil and Hydraulic Engineering (ICACHE 2024)
PB  - Atlantis Press
SP  - 796
EP  - 802
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-658-1_83
DO  - 10.2991/978-94-6463-658-1_83
ID  - Liang2025
ER  -

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