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作者:

Xu, Xi (Xu, Xi.) | Huang, Yu (Huang, Yu.) | Yashima, Atsushi (Yashima, Atsushi.) | Du, Xiuli (Du, Xiuli.)

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EI Scopus SCIE

摘要:

The frequency of earthquake-triggered landslides has increased in recent years, thus urgently necessitating the development of prevention and control strategies to mitigate such geological disasters. Pile-anchor structures can overcome the problems of the excessive pile body bending moment and limited slope reinforcement range when the slope is separately reinforced by a single pile and anchor. In this paper, a refined dynamic centrifuge shaking table test was performed on a rock slope reinforced by a pile-anchor structure based on the non-linear charac-teristics of the rock-soil structure and the mechanical parameters. The elevation amplification effect of the peak ground acceleration is analyzed from the perspective of the time history and frequency spectrum, which fully reveal the synergistic mechanism of the pile-anchor reinforcement system. The failure evolution process of an-chor tensile failure and trailing edge cracking occur alongside overall sliding is revealed by assessing the seismic response of the acceleration, displacement, anchor tension, pile bending moment and soil pressure under multi-level seismic loading conditions. The results prove that pile-anchor structures significantly reduce permanent displacement and enhance the stability of slope, and further provide data and theoretical support for slope seismic design using pile-anchor reinforcement, which can effectively protect human safety and property in earthquake-prone areas.

关键词:

Rock slope Centrifuge shaking table test Seismic design Failure evolution process Pile-anchor structure

作者机构:

  • [ 1 ] [Xu, Xi]Tongji Univ, Coll Civil Engn, Dept Geotech Engn, Shanghai 200092, Peoples R China
  • [ 2 ] [Huang, Yu]Tongji Univ, Coll Civil Engn, Dept Geotech Engn, Shanghai 200092, Peoples R China
  • [ 3 ] [Xu, Xi]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 4 ] [Du, Xiuli]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 5 ] [Huang, Yu]Tongji Univ, Key Lab Geotech & Underground Engn, Minist Educ, Shanghai 200092, Peoples R China
  • [ 6 ] [Yashima, Atsushi]Gifu Univ, Dept Civil Engn, Yanagido 1-1, Gifu 5011193, Japan

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来源 :

ENGINEERING GEOLOGY

ISSN: 0013-7952

年份: 2022

卷: 311

7 . 4

JCR@2022

7 . 4 0 0

JCR@2022

ESI学科: GEOSCIENCES;

ESI高被引阀值:38

JCR分区:1

中科院分区:1

被引次数:

WoS核心集被引频次: 17

SCOPUS被引频次: 19

ESI高被引论文在榜: 0 展开所有

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