TAN Huiming1, 2, JIAO Zhibin3, MEI Taotao1, 2

1. Key Laboratory of Coastal Disaster and Defence of Ministry of Education, Hohai University, Nanjing 210098, Chian
2. College of Harbour Coastal and Offshore Engineering, Hohai University, Nanjing 210098, China
3. State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing Hydraulic Research Institute, Ninjing 210029, China

Abstract: The dynamic responses of sheet pile wharf with separated relieving platform under horizontal earthquake wave loads have been analyzed by finite element method(FEM). Firstly, the construction process of wharf has been simulated, compared to the results of testing in situ and FEM computation, the FEM model and results have been verified, and furthermore the seismic simulation has been made. The calculating results show that: the front wall-tie rod-anchor wall system and front pile-back pile-platform system can both work integrally, and the separated relieving platform system can also carry the loads under the different seismic loads. The direction of bending moment of back pile has been changed with the different earthquake waves, but those of front pile, front wall and anchor wall were not varied basically. With the increase of earthquake wave peak ground acceleration(PGA), the internal forces of wharf structures (front wall, front pile, back pile, anchor pile and tie rod) have been increased in different gradient. The increment of the max bending moment of front wall is the largest, the increments of the max bending moment of front pile and back pile are the smallest, and the increments of the max bending moment of anchor wall and the max tension force of tie rod are in the middle, which also shows the separated relieving effect of platform under seismic loads.

Key words: sheet pile wharf; dynamic response; earthquake wave; structure internal force

Published in: Journal of China Institute of Water Resources and Hydropower Research Vol. 13 No.2, April, 2015