Deformation behavior and dynamic stress response of high railway embankment under cyclic load

被引:0
|
作者
Du, Yongli [1 ]
Lin, Yuliang [1 ]
Yang, Guolin [1 ]
机构
[1] Cent S Univ, Sch Civil Engn, Changsha, Hunan, Peoples R China
关键词
deformation; dynamic stress; railway embankment; cyclic load; FLAC3D;
D O I
10.4028/www.scientific.net/AMM.345.306
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The deformation of railway embankment is strictly controlled to ensure the safety of train running. In order to study the engineering behavior of railway embankment, simulation analysis on railway embankment with height of 8 m was carried out. Dynamic loads with amplitudes of 0 similar to 50 kPa and 0 similar to 100 kPa were imposed. The deformation behavior and dynamic stress response of embankment were studied. The results show that the embankment presents attenuation effect on dynamic stress. The static earth pressure near the top of embankment is enhanced, and the static earth pressure at the bottom of embankment is released. The increase of train load will change the failure mode of embankment. The deformation mode of embankment is in subsidence mode when the amplitude of dynamic load is 0 similar to 50 kPa, and deformation mode turns sliding mode when amplitude is 0 similar to 100 kPa.
引用
收藏
页码:306 / 311
页数:6
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