| 汶川地震路基挡墙震害特征分析 |
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| 引用本文： | 邱燕玲,姚令侃,秦伟.汶川地震路基挡墙震害特征分析[J].重庆交通大学学报(自然科学版),2010,29(4):576-581. |
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| 作者姓名： | 邱燕玲 姚令侃 秦伟 |
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| 作者单位： | 西南交通大学,土木工程学院,四川,成都,610031;西南交通大学,土木工程学院,四川,成都,610031;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 |
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| 基金项目： | 铁道部科技研究开发计划项目，国家重点基础研究发展计划项目 |
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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20 km路基挡墙震害进行了调查,获得结论:在Ⅸ度地震烈度区,毁坏的挡墙只有零星分布,在Ⅹ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。
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| 关 键 词： | 路基工程 挡土墙 抗震设计 震害模式 |
Characteristic Analysis of the Damaged Retaining Wall in Wenchuan Earthquake |
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| QIU Yan-ling,YAO Ling-kan,QIN Wei.Characteristic Analysis of the Damaged Retaining Wall in Wenchuan Earthquake[J].Journal of Chongqing Jiaotong University,2010,29(4):576-581. |
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| Authors: | QIU Yan-ling YAO Ling-kan QIN Wei |
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| Institution: | QIU Yan-ling1,YAO Ling-kan1,2,QIN Wei1 (1.School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,Sichuan,China,2.Road , Railway Engineering Research Institute,Sichuan Key Laboratory of Seismic Engineering , Technology,China) |
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| 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 fundamental factors for seismic damage,height of walls and route direction also exerted influence on seismic damage;retaining walls on rock were mainly inclined while retaining wal... |
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| Keywords: | subgrade engineering retaining wall seismic design seismic failure type |
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