Shi Kebao, Lu Kunlin, Chen Yiming, et al.2020.Numerical study of 3D passive earth pressure during wall rotation around the top mode[J].Journal of Engineering Geology, 28(3):459-470.doi: 10.13544/j.cnki.jeg.2017-515.
    Citation: Shi Kebao, Lu Kunlin, Chen Yiming, et al.2020.Numerical study of 3D passive earth pressure during wall rotation around the top mode[J].Journal of Engineering Geology, 28(3):459-470.doi: 10.13544/j.cnki.jeg.2017-515.

    NUMERICAL STUDY OF 3D PASSIVE EARTH PRESSURE DURING WALL ROTATION AROUND THE TOP MODE

    • The existing study of 3D passive earth pressure on the rigid retaining walls is mainly based on translation mode(T mode) of the retaining wall,while the study of 3D passive earth pressure during retaining wall rotation around the top mode(RT mode) still remains insufficient. Therefore,this paper systematically studies 3D passive earth pressures and the properties of 3D spatial slip surface in RT mode with numerical method. For the non-cohesive soil,the width and depth ratios of retaining wall,the values of soil internal friction angle and the soil-to-wall interface friction ratios have effects on the 3D passive earth pressure coefficients and the slip surface of soil behind retaining walls. Meanwhile there is a quantitative comparison between RT mode and T mode. The results show that: both values of soil internal friction angle and soil-to-wall interface friction ratios have significant influence on the 3D passive earth pressure coefficients and the spatial slip surface behind retaining wall in RT mode,and there is a connection between them. The 3D passive earth pressure coefficients and the spatial slip surface have significant difference between T mode and RT mode. The 3D passive earth pressure coefficients and the spatial slip surface in RT mode are smaller than those in T mode. The results can provide a reference for further study of 3D passive earth pressure and related engineering design in RT mode.
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