Analysis of Coupling Dynamic Response Mechanism for Roadbed and Abutment under Strong Earthquake
The transition section of roadbed-abutment often performs weakly for the entire line. The crack and staggered platform used to emerge under a strong earthquake. A three-dimensional coupling dynamic model is established by using a well-verified software named FLAC3D, assuming the soil as non-linear. The dynamic response laws and causative mechanism are analyzed by varying the soil property. The significantly permanent deformations of roadbed-abutment are produced after a earthquake. The movement of abutment is characterized by the sliding and rotation outwards. The property of soil has a great influence on the dynamic response of roadbed-abutment, the failure of which attributes to the soil liquefaction and sliding of bank slope. Meanwhile, a fact is proved that the Fly-clay material can reduce the permanent deformation and PGA amplification coefficient effectively.
Strong earthquake Dynamic response Failure causes Soil liquefaction
Qian Su Biao Zhong
School of Civil Engineering, Southwest Jiaotong University, Chengdu, China, 610031
国际会议
The First Anniversary of Wenchuan Earthquake(纪念汶川地震一周年国际学术会议)
成都
英文
705-709
2009-05-10（万方平台首次上网日期，不代表论文的发表时间）