Author(s)

Huiguang Jia ¹, Zuochen Lv ², Boyang Lv ², Dongyang Zhang ³, Qingyou Wang ⁴

Affiliation(s)

¹ China Energy Shuohuang Railway Development Co., Ltd., Cangzhou, Hebei, 062350, China
² School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang, Hebei, 050043, China
³ Petrol Engineering Technology, Hebei Petroleum University of Technology, Chengde, Hebei, 067055, China
⁴ China Association of Construction Enterprise Management, Beijing, 102413, China

Corresponding Author

Zuochen Lv

ABSTRACT

Due to its own structural characteristics, such as multi porosity, low density and water sensitivity, loess disasters occur continuously, and rainfall is the main factor causing the loess slope damage. Loess slope failures induced by rainfall infiltration occur frequently, due to its special characteristics such as multi porosity, low density and water sensitivity. Taking a secondary railway slope in Xinzhou City as a reference, a model is built to carry out the rainfall test of loess slope. The influence of rainfall intensity, slope angle and slope height on slope stability is studied in detail. The results of numerical simulation and field experiments show that when the rainfall lasts for 300 minutes, the soil pressure at the toe of the first grade slope changes suddenly, the horizontal stress is the largest, and the slope is damaged. Under the condition of constant rainfall intensity, with the increase of slope angle and height, slope landslides are more likely to occur.

KEYWORDS

Loess landslide, unsaturated seepage, matrix suction, numerical simulation

CITE THIS PAPER

Huiguang Jia, Zuochen Lv, Boyang Lv, Dongyang Zhang, Qingyou Wang, Numerical study on loess slope failure induced by rainfall infiltration based on the finite difference method. Environment, Resource and Ecology Journal (2023) Vol. 7: 55-62. DOI: http://dx.doi.org/10.23977/erej.2023.070210.

REFERENCES

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