Abstract：Change laws of the maximum dynamic pore water pressure with the largest deviatoric stress and the average effective stress based on the indoor dynamic triaxial test, and a simplified calculation methods of maximum dynamic pore water was put forward, and it is generated into the calculation formula of the permanent displacement, and the simple calculation method of the permanent displacement of slope considering the influence of dynamic pore water pressure was proposed. The accuracy of the simple calculation method of the permanent displacement was verified by shaking table test, and the influence law of underground water level on failure mode of sandy slope was further studied, and the evaluation method of the seismic stability safety of the slope based on performance was put forward, and a new idea of the evaluation of the seismic stability of the slope based on permanent displacement was formed. The results show that destruction of slope begins on the top and shows obvious lash effect without groundwater. Compared with the low water level, the destruction begins at the slope toe with high levels. Meanwhile, the position at the top of slope has obvious settlement phenomenon. The simplified relation of the dynamic pore water pressure and permanent displacement values were compared with indoor test values, which verified their accuracy. The evaluation system of the seismic stability of the slope based on permanent displacement and safety factor provides a reference for the slope stability.
基于永久位移的边坡地震稳定性安全评价方法研究[J]. 土木工程学报, 2016, 49(S2): 120-125.
Huang Shuai Lu Yuejun Peng Yanju. Study on safety evaluation method of seismic stability of slope based on permanent displacement. 土木工程学报, 2016, 49(S2): 120-125.
