Research on influence of core filling on vertical bearing performance of pipe piles
Through model test and numerical simulation,the vertical bearing characteristics of core filled pipe piles under dynamic and static loads are studied.Firstly,the half pile model test device is designed independently,and the load test of the core filled pipe pile is carried out by the multifunctional vibration hybrid test system.The ulti-mate bearing capacity of the core filled pipe pile under different core filling positions and core filling rates is ob-tained by the static load test.The finite element software ANSYS Workbench is used to model and analyze the model test.When the calculation results are basically consistent with the model test,the bearing law of the core filled pipe pile under static load is studied,and the bearing law of core filled pipe pile under cyclic load is explored.Through the analysis of test and simulation data,the influence of core filling rate,core filling position and length di-ameter ratio on the bearing capacity of core filled pipe pile under static load are obtained.Through the numerical simulation of different core filling rate and core filling position under cyclic load,the bearing characteristics of core filled pipe pile are obtained,which provides support for the engineering application of core filled pipe pile.
core filled pipe pilesmodel testingnumerical simulationvertical loadsettlement law
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