中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2011, Vol. 30 ›› Issue (S1): 523-525.DOI: 10.3969/j.issn.1674-0696.2011.supp1.002

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强震区桥台岸坡震动滑移破坏机理研究

刘荣灿1,2,唐红梅1,蒋金池2,刘军2   

  1. 重庆交通大学岩土工程研究所,重庆400074;2.重庆地质矿产研究院,重庆40004
  • 收稿日期:2011-05-23 修回日期:2011-06-23 出版日期:2011-07-15 发布日期:2015-03-12
  • 作者简介:刘荣灿(1984—),男,湖北武汉人,工程师,主要从事岩土工程与地质灾害研究。E-mail:liurongcan163@163.Com

Failure MechanisMof Abutment Slope Sliding in Meizoseismal Area

LIU Rong-can 1,2,TANG Hong-mei1 ,JIANG Jin-chi 2,LIU Jun2   

  1. 1.Institute of Geotechnical Engineering,Chongqing Jiaotong University,Chongqing 400074,China; 2.Institute of Geology&Mineral Resources of Chongqing,Chongqing 400042,China
  • Received:2011-05-23 Revised:2011-06-23 Online:2011-07-15 Published:2015-03-12

摘要: 针对汶川地震中大量桥梁岸坡出现滑移破坏现象,对地震作用下桥台岸坡滑移进行了理论研究。根据米塞斯 流动法则,得到地震作用下桥台岸坡滑动面应变速度以及与滑动线夹角,据此得出作用于岸坡各外力做功和塑性流 动消耗的能量,依据外力所做功与内部消耗能量相等的原则,最终推导出岸坡最大地震主动土压力及所对应滑动面 倾角,将能量耗散理论与岸坡滑移动力响应相结合,对地震下岸坡滑移现象进行安全评定

关键词: 强震区, 桥台, 岸坡, 滑移, 破坏机理

Abstract: :Aiming at the phenomenon a large number of abutment slopes have sliding failure in Wenchuan Earthquake,a theoretic study of abutment slope sliding under seismic effect is carried out. According to Mises floWrule,the abutment slope sliding velocity as well as its angle between sliding lines under ea~hquake are obtained.In that case,the energy con- sumption of the work force acting on the slope and the plastic floWis obtained.And then,on the basis of principle that the work done by external forces is equivalent to internal energy consumption,the maximuMslope seismic active earth pressure and the corresponding angle of sliding surface are finally got.Integrating the energy dissipation theory and the dynamic response to slope slide,the safety assessment of slope sliding under seismic effect is carried out

Key words: words:meizoseismal area, abutment, slope, slide, failure mechanism

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