Influence of seismic excitation direction on horizontal acceleration response characteristics of multi-tiered reinforced slopes

MENG Yu-han; ZHENG Xiu-kun; WANG Hui; XU Peng; LI Ting; YANG Guang-qing; ZHANG Jun; LIU Lin-gui

doi:10.16285/j.rsm.2025.0878

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Influence of seismic excitation direction on horizontal acceleration response characteristics of multi-tiered reinforced slopes

更新时间：2026-08-04

- Influence of seismic excitation direction on horizontal acceleration response characteristics of multi-tiered reinforced slopes
- Vol. 47, Issue 7, (2026)
- 作者机构：
  
  1. ．石家庄铁道大学土木工程学院,河北,石家庄,050043
  2. ．石家庄铁道大学省部共建交通工程结构力学行为与系统安全国家重点实验室,河北,石家庄,050043
  3. ．北京城建设计发展集团股份有限公司,山东,济南,250014
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2025.0878
  CLC：
- Online First：09 July 2026，
  
  Published：2026
- 稿件说明：
移动端阅览
MENG Yu-han, ZHENG Xiu-kun, WANG Hui, et al. Influence of seismic excitation direction on horizontal acceleration response characteristics of multi-tiered reinforced slopes[J]. 2026, 47(7).
DOI：

MENG Yu-han, ZHENG Xiu-kun, WANG Hui, et al. Influence of seismic excitation direction on horizontal acceleration response characteristics of multi-tiered reinforced slopes[J]. 2026, 47(7). DOI： 10.16285/j.rsm.2025.0878.

摘要

地震作用下加筋边坡内的响应加速度直接影响结构抗震特性，同时其也是抗震设计中的关键参数。目前针对加筋边坡水平响应加速度的研究多集中于单向地震作用，而对双向地震影响的关注相对不足，特别是多级加筋边坡，开展了两组不同地震作用方向时多级加筋边坡振动台模型试验。研究结果表明：双向地震作用下水平与竖向加速度放大特性存在差异，水平加速度的放大效应较竖向更显著，且两个方向的响应加速度同步性随加载幅值增大而减弱；加筋边坡水平响应加速度与加载加速度间的相位差呈自坡面向坡内、自坡顶向坡底减小的趋势，并且双向地震作用时的最大相位差约为单向时的2倍；双向地震作用下水平加速度放大系数较单向时更大，特别是当加载加速度超过0.4后的第3级边坡内部；拟静力设计法可较好预测不同地震作用方向时的水平响应加速度设计值，但其低估了水平响应加速度作用点的位置高度。

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