Lateral loaded pile is a type of retaining structure widely used for stabilizing slope. Although various static design methods for lateral loaded pile are recommended in design codes, few seismic design methods for the pile were developed in the past. In this paper, the deformation and load acted on the lateral loaded piles with 3 degrees of tilt, caused by the ground shaking from the 2008 Wenchuan earthquake, are analysed by using software ABAQUS. To truly obtain the deformation and load of the pile, back-analysis and trial and error approaches are taken and measured pile displacements are used as control criteria. By using the back-analysis, we get the bending moment and shear force of the piles and earth pressure distribution on the piles. When compared with the values recommended from Chinese code, our results show that a seismic coefficient of 0.4 can work very well for evaluating seismic response of the piles subjected to the 2008 Wenchuan earthquake. On this basis, we re-analyze the seismic response of the lateral loaded piles when subjected to PGA=0.1g (7 degrees), 0.3g (8 degrees) and 0.4g (9 degrees). Results show that a seismic coefficient of 0.3 is suitable for 7 degree, 0.35 for 8 degree, 0.4 for equal to and greater than 9 degree areas. In the paper, some impacted factors for lateral loaded pile design are also studed. Finally, a seismic design method for lateral loaded pile subjected to strong shaking is proposed.
Seismic Analysis of Lateral Loaded Pile under Strong Shaking: A Case Study from the 2008 Wenchuan Earthquake
Ninth Asia Pacific Transportation Development Conference ; 2012 ; Chongqing, China
Sustainable Transportation Systems ; 652-661
2012-06-28
Conference paper
Electronic Resource
English
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