Articles | Volume 13, issue 5
https://doi.org/10.5194/esurf-13-861-2025
https://doi.org/10.5194/esurf-13-861-2025
Research article
 | 
12 Sep 2025
Research article |  | 12 Sep 2025

Experimental study on granite-weathered crust landslides with different residual layer thicknesses under heavy rainfall

Jingye Chen, Qinghua Gong, Jun Wang, and Shaoxiong Yuan

Cited articles

Bian, S. Q., Chen, G., Meng, X. M., Yang, Y. P., Wu, J., Huang, F. C., Wu, B., Jin, J. C., Qiao, F. Y., Chong, Y., and Cheng, D. L.: Physical model experiment of rainfall-induced instability of a two-layer slope: implications for early warning, Landslides, 21, 3149–3167, https://doi.org/10.1007/s10346-024-02339-0, 2024. 
Branco, L. P., Gomes, T. A.,. Cardoso, A. S., and Pereira, C. S.: Natural variability of shear strength in a granite residual soil from porto, Geotech. Geol. Eng., 32, 911–922, https://doi.org/10.1007/s10706-014-9768-1, 2014. 
Chen, J. Y., Gong, Q. H., Wang, J., and Yuan, S. X.: Damage cause and mechanism of well-vegetated soil slopes under extreme rainfall: a case study, Front. Earth Sci., 12, 1402798, https://doi.org/10.3389/feart.2024.1402798, 2024. 
Chen, Y. B., Gao, Y. F., and Ng, C. W. W.: A new capillary barrier system for retaining wall backfilled with fine-grained soil, Comput. Geotechs., 118, 103324, https://doi.org/10.1016/j.compgeo.2019.103324, 2022. 
Cui, P., Guo, C. X., Zhou, J. W., Hao, M. H., and Xu, F. G.: The mechanisms behind shallow failures in slopes comprised of landslide deposits, Eng. Geol., 180, 34–44, https://doi.org/10.1016/j.enggeo.2014.04.009, 2014. 
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Short summary
Rainfall caused clustered landslides in a granite area. Different types of landslides occurred in similar geologic settings, which triggered us to make the assumption that the material variability and the residual layer thickness affect the damage pattern. We designed three slope models with different residual layer thicknesses for tests. The landslide damage patterns were summarized. The E1 slope is overall flow-slip damage, the E2 slope is a traction-type slide, and the E3 slope is a thrust-type slide.
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