Shaking table test and numerical analysis on reinforced slope at Dali West Railway Station

被引：4

作者：

Lai J. ^{[1
]}

Liu Y. ^{[1
,2
]}

Xin J.-P. ^{[3
]}

Wang W. ^{[1
]}

Gao C.-Q. ^{[1
]}

Zhu H.-B. ^{[1
]}

机构：

[1] College of Combat Support, Rocket Force University of Engineering, Xi'an

[2] Faculty of Architectural and Enviromental Engineering, Chongqing Industry Polytechnic College, Chongqing

[3] 95356 Troops, Hengyang

来源：

Liu, Yun (2360605055@qq.com) | 2020年 / Zhejiang University卷 / 54期

关键词：

Anchor; Anti-slide pile; Bending moment; Failure surface; Shaking table test;

D O I：

10.3785/j.issn.1008-973X.2020.05.004

中图分类号：

学科分类号：

摘要：

Shaking table test and numerical analysis were carried out on the reinforced slope at Dali West Railway Station in YunNan province, China, for obtaining the bending moment of double-row anti-slide piles, the axial force of anchors, the acceleration response and the ultimate failure of the reinforced slope. Results show that the acceleration response of the slope is related to the different relative elevations of measuring points, which could be represented as the higher the relative elevation of measuring points, the more obvious the acceleration response. The dynamic characteristics and the law of acceleration response of rocks and soils within the slope will be changed when cracks appear in the slope. The bending moment distribution of anti-slide piles triggered by earthquake is close to the parabola shape, the maximum value of which would appear near the boundary between rock and soil. The bending moment of the anti-slide piles increases nonlinearly with the increment of the peak ground acceleration (PGA) of input seismic waves. The dynamic axial force of the bolt at the peak time in the earthquake (4 m/s2) is three times more than the one in the static condition, and the seismic action is the decisive factor for the axial force of the bolt. Based on the action of the bolt, the ultimate failure surface of the slope is located in the deep part of the slope 2#, and the location of the failure surface is composed of the sliding failure in the upper-middle body and the top-over failure within the lower body of the slope 2#. © 2020, Zhejiang University Press. All right reserved.

引用

页码：870 / 878

页数：8

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