Author(s)

Erle Qin ¹

Affiliation(s)

¹ Hebei Water Resources Planning, Design and Research Institute Co., Ltd., Shijiazhuang, Hebei, China

Corresponding Author

Erle Qin

ABSTRACT

The stability of the water bank slope and the reservoir bank slope along the mountain river is affected by the change of water level. In addition, the inclination angle of the overburden layer and the bedrock surface is also one of the important factors affecting the stability of the bank slope. In order to evaluate the stability of the water bank slope and the reservoir bank slope under the condition of the change of water level and the dip angle of the sliding surface, this paper selects a simple model: the limit equilibrium method is used to calculate the stability coefficient of the given water level and the dip angle of the sliding surface. The results show that the change of the dip angle of the sliding surface is positively correlated with the change of the amplitude of the stability coefficient. The larger the dip angle, the easier it is for the slope to change from a stable state to an unstable state during the change of the reservoir water level, and the slope stability is more sensitive to the change of the water level. The influence of reservoir water level on the stability coefficient is related to the inclination angle of the sliding surface. Although the inclination angle is large and small, it can cause a sharp change in the stability coefficient, but it is not the most unstable state. The slower or steeper the inclination angle of the sliding surface, although it can sensitively affect the slope stability, it is still in a stable state. The most unstable state is within a certain inclination angle of the sliding surface.

KEYWORDS

Landslide near water, water level change, inclination angle of base slip surface, limit equilibrium method

CITE THIS PAPER

Erle Qin, Study on the Response of Slope Stability to Its Influencing Factors Based on a Simple Model. Journal of Civil Engineering and Urban Planning (2023) Vol. 5: 63-69. DOI: http://dx.doi.org/10.23977/jceup.2023.050209.

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