New approach for seismic design of 3D complex slopes reinforced with piles

LI Jian-fei

doi:10.16285/j.rsm.2020.1252

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New approach for seismic design of 3D complex slopes reinforced with piles

更新时间：2026-06-25

- New approach for seismic design of 3D complex slopes reinforced with piles
- Vol. 43, Issue S1, Pages: 275-285(2022)
- 作者机构：
  
  中国铁路上海局集团有限公司上海工务段,上海,200071
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2020.1252
  CLC： TU473.1
- Online First：14 July 2022，
  
  Published：2022
- 稿件说明：
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LI Jian-fei. New approach for seismic design of 3D complex slopes reinforced with piles[J]. 2022, 43(S1): 275-285.
DOI：

LI Jian-fei. New approach for seismic design of 3D complex slopes reinforced with piles[J]. 2022, 43(S1): 275-285. DOI： 10.16285/j.rsm.2020.1252.

摘要

提出一种抗滑桩加固三维复杂边坡抗震设计的新方法——拟动力方法。采用“牛角型”破坏机构，并基于极限运动学原理分析了抗滑桩加固三维复杂边坡在地震动态荷载下的稳定性。与传统的拟静力方法相比，提出的拟动力方法更接近实际且更加经济。经参数分析求得了各影响因素对边坡安全系数Fs的影响规律，并得出以下结论：相较于简单的单台阶边坡，带平台边坡更趋于稳定；在三维复杂边坡的抗震设计时，抗滑桩能有效提升边坡的稳定性能。根据工程实际提出相应的工程建议。

Abstract

In this work

the pseudo-dynamic method is introduced to evaluate the seismic stability of multi-level slopes reinforced with piles. Based on the kinematic limit analysis and the strength improvement technique

a horn failure mechanism is adopted to calculate the safety factors of the 3D complex slope reinforced by a row of piles. Comparisons between the solutions of pseudo-static method and the presented results show that the proposed technique is effective. Through parametric analysis

the influence law of each factor on the safety factor Fs is explored

and it is shown that multi-level slopes are safer than single-level slopes. In addition

in the seismic design of 3D complex slopes

piles can effectively improve the stability of slopes. Finally

the suggestions are provided for the seismic design of 3D complex slopes reinforced with piles.

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Discussion about objectivity of ground response analysis in seismic design

Study on pier-pile group-soil interaction based on stochastic seismic response

Related Author

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FANG Kai

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HUANG Rui

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Related Institution

College of Resources and Environmental Engineering, Shandong University of Science and Technology

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MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering, Zhejiang University

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College of Earth Sciences and Engineering, Hohai University

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