| Bending toppling is a typical instability mode of anti-dip slope, and the failure mode is completely different from the common sliding mode. With the gradual deepening of the construction in the western high mountain area and the southern mountain area, more and more anti-dip slope stability problems have been revealed.In this paper, the deformation classification, stability analysis method, safety factor calculation formula and stability influencing factors of anti-dip layered rock slope are studied firstly. Based on the cantilever beam limit equilibrium model, the rock geometry and interlayer force are improved, and the stability analysis and safety factor calculation formula of anti-dip layered rock slope are derived.Secondly, according to the previous research on the anti-dip slope, it is considered that the tensile stress at the toc of the slope plays a vital role in the stability of the slope. The dimensionless analysis is carried out according to the tensile stress at the toe of the slope. The stability of the anti-dip layered rock slope is combined with the dimensionless analysis method, and the factors affecting the stability of the slope are analyzed, and the generalized function of the tensile stress at the toe of the slope is obtained. Then, this paper creates a stability analysis platform for anti-dip layered rock slopes, which can calculate the tensile stress at the toe of the slope model with different slope heights and rock dip angles and the safety factor of the slope model. Finally, through the introduction of two slope cases, the practical application of the dimensionless analysis method is introduced, and the UDEC numerical simulation and analytical calculation are carried out to verify the correctness of the stability analysis of the anti-dip layered rock slope proposed in this paper. The feasibility of the anti-dip layered rock slope stability analysis platform created in this paper in practical engincering applications. |
PDF Full Text Request