Shaking table test study on basalt fiber reinforced 
plastics in high slope protection

LAI Tian-wen; LEI Hao; WU Zhi-xin; WU Hong-gang

doi:10.16285/j.rsm.2020.0851

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Shaking table test study on basalt fiber reinforced plastics in high slope protection

更新时间：2026-06-25

- Shaking table test study on basalt fiber reinforced plastics in high slope protection
- Vol. 42, Issue 2, Pages: 390-400(2021)
- 作者机构：
  
  1. 兰州交通大学土木工程学院,甘肃,兰州,730070
  2. 中铁西北科学研究院有限公司,甘肃,兰州,730030
  3. 甘肃省交通规划勘察设计院股份有限公司,甘肃,兰州,730070
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2020.0851
  CLC： TU476
- Online First：09 February 2021，
  
  Published：2021
- 稿件说明：
移动端阅览
LAI Tian-wen, LEI Hao, WU Zhi-xin, et al. Shaking table test study on basalt fiber reinforced plastics in high slope protection[J]. 2021, 42(2): 390-400.
DOI：

LAI Tian-wen, LEI Hao, WU Zhi-xin, et al. Shaking table test study on basalt fiber reinforced plastics in high slope protection[J]. 2021, 42(2): 390-400. DOI： 10.16285/j.rsm.2020.0851.

摘要

在地震烈度较低时，钢锚索可以很好地限制坡体变形，起到良好的边坡支护效果。但是在强震条件下，常规的锚索难以发挥其锚固作用，最终导致锚固失效破坏，常会引发边坡失稳破坏的现象，且在地下水等腐蚀性物质的作用下，常会造成钢锚索的锈蚀问题。鉴于此，通过大型振动台试验，对新型玄武岩纤维增强复合材料（basalt fiber reinforced plastics，简称BFRP）加固边坡及无支护边坡的动力响应进行了对比研究，旨在为高边坡加固中BFRP锚索的动力合理性设计提供科学依据。研究结果表明：相较于BFRP锚索支护边坡而言，无支护边坡在地震波加载过程中具有明显的变形阶段，主要可划分为弹性阶段、塑性阶段、塑性增强阶段以及破坏阶段，且当输入波峰值小于0.2g时，BFRP锚索支护边坡与无支护边坡均可处于弹性状态；BFRP锚索支护边坡的加速度峰值均要大于无支护边坡的加速度峰值，表明相较于无支护边坡而言，BFRP锚索可有效提高边坡的刚度；同一工况的地震波作用下，无支护边坡中各测点位移谱值均要大于BFRP锚索支护边坡对应测点的位移谱值，表明BFRP锚索用于边坡支护工程中时，可以很好地限制坡体变形，有利于提高坡体的抗震性能。

Abstract

In general

the steel anchor cable can effectively reduce the deformation of the slope body

and is useful for slope reinforcement when the seismic intensity is low. However

the anchored rock mass deforms excessively under strong earthquake conditions

and conventional prestressed anchor cable cannot sustain the large deformation

which leads to the catastrophic slope instability and failure. Additionally

the corrosion of steel anchor cable often occurs under the groundwater containing corrosive substances. In view of this

the dynamic response of the slope reinforced using the new basalt fiber reinforced plastics (BFRP) and the unsupported slope was compared through the large-scale shaking table tests

aiming to provide a scientific basis for the dynamic rational design of BFRP anchor cables for reinforcement of high slopes. The result shows that: compared with the slope supported by BFRP

the unsupported slope has obvious deformation stages during seismic loading

which can be divided into elastic stage

plastic stage

plastic reinforcement stage

and failure stage. When the peak value of input wave is less than 0.2g

both the slope supported by BFRP anchor cable and the unsupported slope are in elastic state. In addition

the peak acceleration value of the slope supported by BFRP anchor cable is greater than that of the unsupported slope

which indicates that the BFRP anchor cable can effectively improve the rigidity of the slope. Under the action of seismic wave in the same condition

the displacement spectrum value of each measured point in the unsupported slope is greater than that of the corresponding measured point in the slope supported by BFRP anchor cable

which indicates that the BFRP anchor cable can reduce the deformation and improve the seismic performance of the slope in the slope supporting engineering.

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Related Institution

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