Study on Shear Behavior Characteristics of Completely Weathered Granite Soil Based on Ring Shear Tests

Lisha Hei; Yu  Huang; Yinke  Li; Jialing  Zou; Chenrui  Feng; Taili  Zhang

doi:10.64862/

Study on Shear Behavior Characteristics of Completely Weathered Granite Soil Based on Ring Shear Tests

Authors

Lisha Hei Tongji University, Shanghai, China Author https://orcid.org/0000-0002-7879-8337
Yu Huang Tongji University, Shanghai, China Author
Yinke Li Tongji University, Shanghai, China Author
Jialing Zou Tongji University, Shanghai, China Author
Chenrui Feng Tongji University, Shanghai, China Author
Taili Zhang Nanjing Center, China Geological Survey, Nanjing, China Author

DOI:

https://doi.org/10.64862/

Keywords:

Completely weathered granite, Shear behavior, Ring shear test

Abstract

This study investigates the shear behavior of completely weathered granite soil using a series of ring shear tests. The effects of normal stress, shear rate, and degree of saturation on the mechanical response were analyzed. The results indicate that the shear strength of the soil shows strain-softening behavior, with peak strength higher than residual strength. As saturation increases, both peak and residual shear strengths first rise and then decrease. Moreover, the residual friction coefficient decreases with increasing shear rate, exhibiting a negative rate effect. These findings contribute to a better understanding of the shear mechanism of completely weathered granite and provide theoretical support for the prediction and prevention of rainfall-induced landslides

Author Biography

Lisha Hei, Tongji University, Shanghai, China

I am a Phd student from the College of Civil Engineering at Tongji University.

References

Bai, H. L., Feng, W. K., Li, S. Q., Ye, L. Z., Wu, Z. T., Hu, R., Dai, H. C., Hu, Y. P., Yi, X. Y., and Deng, P. C. (2022). Flow-slide characteristics and failure mechanism of shallow landslides in granite residual soil under heavy rainfall. Journal of Mountain Science, 19 (6), 1541–1557. https://doi.org/10.1007/s11629-022-7315-8

Hu, B., Hu, Q., Liu, Y., and Tao, G. (2024). Research on the improvement of granite residual soil caused by fly ash and its slope stability under rainfall conditions. Applied Sciences, 14 (9), 3734. https://doi.org/10.3390/app14093734

Lu, Y., Shi, Y., Chen, B., Feng, Z., and Hu, J. (2024). Structural damage characteristics and mechanism of granite residual soil. Applied Rheology, 34 (1), 20240011. https://doi.org/10.1515/arh-2024-0011

Wang, T., Yin, K., Li, Y., Guo, Z., and Wang, W. (2022). Interpretation of the reactivation of slow-moving landslides based on ring shear tests and monitoring. Natural Hazards, 114 (3), 2991–3013. https://doi.org/10.1007/s11069-022-05502-9

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Published

2025-11-27

Data Availability Statement

The authors did not make the research data publicly available.

Issue

Vol. 2 No. Sp Issue (2025): Extended Abstract Volume of the ARC-15 of IAEG, Asian Journal of Engineering Geology

Section

ARC15 Extended Abstract

License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

Study on Shear Behavior Characteristics of Completely Weathered Granite Soil Based on Ring Shear Tests. (2025). Asian Journal of Engineering Geology, 2(Sp Issue), 409-410. https://doi.org/10.64862/