Effect of Particle Size Distribution on Creep Characteristics of Calcareous Sand under Confined Conditions

Xu Shi; Yan Gao; Tiangen Shi

doi:10.2991/978-94-6463-429-7_3

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Effect of Particle Size Distribution on Creep Characteristics of Calcareous Sand under Confined Conditions

Authors

Xu Shi¹, Yan Gao¹^{, 2}^{, *}, Tiangen Shi¹

¹School of Earth Sciences and Engineering, Sun Yat-Sen University, Zhuhai, Guangdong, China

²Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, Guangdong, China

^*Corresponding author. Email: gaoyan25@mail.sysu.edu.cn

Corresponding Author

Yan Gao

Available Online 7 June 2024.

DOI: 10.2991/978-94-6463-429-7_3 How to use a DOI?
Keywords: calcareous sand; particle breakage; creep; particle size distribution; coefficient of uniformity
Abstract: The creep characteristics of calcareous sand under different stress levels and gradations were examined in the study through a series of one-dimensional creep tests using a self-designed acrylic model box. The results demonstrate that, under confined conditions with the same particle gradation, the creep strain and creep rate of calcareous sand increase with the increase of creep stress. Under the same creep stress, the overall creep rate exhibits a nonlinear attenuation over time. Additionally, as the coefficient of uniformity C u of calcareous sand increases, the content of fine particles increases which can fill in the spaces between the larger particle skeletons, resulting in an increase in interparticle locking and a decrease in particle breakage, hence, the creep deformation is inhibited. That is, the creep rate and creep strain of calcareous sand decrease with an increase in C u . Optimizing the particle gradation can effectively reduce creep in calcareous sand.
Copyright: © 2024 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 7th International Conference on Structural Engineering and Industrial Architecture (ICSEIA 2024)
Series: Atlantis Highlights in Engineering
Publication Date: 7 June 2024
ISBN: 978-94-6463-429-7
ISSN: 2589-4943
DOI: 10.2991/978-94-6463-429-7_3 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  - Xu Shi
AU  - Yan Gao
AU  - Tiangen Shi
PY  - 2024
DA  - 2024/06/07
TI  - Effect of Particle Size Distribution on Creep Characteristics of Calcareous Sand under Confined Conditions
BT  - Proceedings of the 2024 7th International Conference on Structural Engineering and Industrial Architecture (ICSEIA 2024)
PB  - Atlantis Press
SP  - 13
EP  - 22
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-429-7_3
DO  - 10.2991/978-94-6463-429-7_3
ID  - Shi2024
ER  -

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