Study on Deformation Characteristics of Bridge Pile Foundation in Soft Soil Area under Large Pile Load
In this paper,the time-history characteristics of internal stress and strain of pile foundation under large area loading are studied.The results show that the simulated cap displacement reaches 31.6 mm in the stable phase of the lateral displacement response curve,which is 6.9%higher than the measured value,but the simulated results are consistent with the measured curve.The closer the pile load is,the greater the deformation of pile foundation and the smaller the force of pile foundation.For all pile surface positions,the pile displacement increases with time,and the 224 d pile displacement increases by 66.7%compared with the 3 d pile displacement.With the increase of buried depth,the bending moment of the pile body in the near distance shows a trend of first reverse decrease,then positive increase,then lower and then increase,while the bending moment of the pile body in the far distance shows a trend of first positive decrease,then reverse increase,and then lower.
Bridge engineeringLarge area stowagePile foundationDeformation characteristic
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