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土工结构的传统设计方法是以采用水平地震作用系数的拟静力稳定分析为基础的。本论文研究了斜坡在水平和竖向加速度的综合作用下的稳定性和永久位移。采用的是对数螺旋线的破坏机理。试验结果表明，地震作用对斜坡的稳定性和永久位移有显著影响。对参数的研究表明如果相应的水平加速度较大，则竖向加速度对稳定性和永久位移有重要影响。
The traditional design method for geotechnical structures is based on quasi-static stability analysis using horizontal seismic coefficients. This thesis studies the stability and permanent displacement of slopes under the combined effect of horizontal and vertical accelerations. Using a logarithmic helix destruction mechanism. The experimental results show that the seismic effect has a significant influence on the stability and permanent displacement of the slope. Research on the parameters shows that vertical acceleration has a significant influence on stability and permanent displacement if the corresponding horizontal acceleration is large.