Red sandstone slope stability under different rainfall intensities and reinforcement calculation

X. C. Chen; J. Zhang; Y. Guo; T. S. Yue; Z. B. Ke; K. Gao

doi:10.1117/12.2620219

29 November 2021 Red sandstone slope stability under different rainfall intensities and reinforcement calculation

X. C. Chen, J. Zhang, Y. Guo, T. S. Yue, Z. B. Ke, K. Gao

Proceedings Volume 12080, 4th International Symposium on Power Electronics and Control Engineering (ISPECE 2021); 120800F (2021) https://doi.org/10.1117/12.2620219
Event: 4th International Symposium on Power Electronics and Control Engineering (ISPECE 2021), 2021, Nanchang, China

Abstract

Red sandstone is an engineering rock mass with disaster-causing characteristics such as low strength, weak bonding and proneness to softening and disintegration in water, all of which will generate great impacts on the regional engineering construction. A wide range of red-bed cutting slopes are distributed along multiple expressways in southern Anhui. The instability of such slopes will lead to major economic and security loss. Since the rainy season in 2020, Anhui Province suffered wide-range heavy rainfall, where the rainfall reached over 300 mm in some areas of southern Anhui within 24 h, belonging to torrential rainstorm, after which, landslide disaster occurred with a lot of red-bed cutting slopes witnessed along G4012 Expressway in southern Anhui. In this study, a red-bed cutting slope in Jixi segment was taken as the study object, with the main lithology of Huizhou Formation ferrous siltstone. Three rainfall intensities were set by combining the regional rainfall characteristics, the slope stability under different rainfall intensities was calculated via Midas finite element software, and a slope support and reinforcement scheme was designed based on the characteristics of this slope.

Citation Download Citation

X. C. Chen, J. Zhang, Y. Guo, T. S. Yue, Z. B. Ke, and K. Gao "Red sandstone slope stability under different rainfall intensities and reinforcement calculation", Proc. SPIE 12080, 4th International Symposium on Power Electronics and Control Engineering (ISPECE 2021), 120800F (29 November 2021); https://doi.org/10.1117/12.2620219

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