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重庆交通大学学报（自然科学版）

重庆交通大学学报（自然科学版） ›› 2010, Vol. 29 ›› Issue (4): 576-581.

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汶川地震路基挡墙震害特征分析

邱燕玲1, 姚令侃1,2 秦伟1   

  1. 1.西南交通大学土木工程学院, 四川 成都 610031; 2.道路与铁道工程抗震技术研究所抗震工程技术四川省重点实验室, 四川 成都 610031
  • 收稿日期:2010-04-13 修回日期:2010-04-25 出版日期:2010-08-15 发布日期:2015-01-22
  • 作者简介:邱燕玲(1986—),女,四川内江人,硕士研究生,主要从事道路与铁道工程防灾减灾的研究工作。E-mail:aggieqiuyanling@126.com。
  • 基金资助:
    铁道部科技研究开发计划项目(2008G010－A ) ; 国家重点基础研究发展计划项目(973计划2008CB425802)

Characteristic Analysis of the Damaged Retaining Wall in Wenchuan Earthquake

QIU Yan-ling1, YAO Ling-kan1,2, QIN Wei1   

  1. 1.School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, Sichuan, China; 2.Road and Railway Engineering Research Institute, Sichuan Key Laboratory of Seismic Engineering and Technology,Chengdu 610031, Sichuan, China
  • Received:2010-04-13 Revised:2010-04-25 Online:2010-08-15 Published:2015-01-22

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摘要： 对汶川地震近场区213线马鞍石隧道至映秀30多km路段近20km路基挡墙震害进行了调查,获得结论:在 ??度地震烈度区,毁坏的挡墙只有零星分布,在度区也是局部现象;地震烈度、挡墙材料是对震害具控制性的因 素;挡墙高度、线路走向也对震害有影响;岩基挡墙主要以倾斜变形为主,土基挡墙兼有滑移和倾斜两种变形模式; 路堑墙竖向最大变形点平均位于墙高的50%左右。基于以上震害分析,结合数值模拟方法,提出了路基挡墙抗震 设计的注意事项。

关键词: 路基工程, 挡土墙, 抗震设计, 震害模式

Abstract: Almost 20-km retaining wall along G213 Highway (Maanshi tunnel to Yingxiu section, more than 30km ) was investigated. The results were as follows: debris of the retaining wall were scattered in the region with seismic intensity of 9 degree and partial destruction could be seen at 10 degree; seismic intensity and material of walls were fundam ental factors for seismic damage, height of walls and routed irection also exerted in fluence on seismic damage; retaining walls on rock were mainly inclined while retaining walls on soil had both inclining and sliding deformation; the average vertical maximum deformation part was as high as about 50% of retaining wall. Based on the analysis above and numerical simulation approach, some counterm easures in retaining wall seismic design were proposed.

Key words: subgrade engineering, retaining wall, seismic design, seismic failure type

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