Research On The Characteristics Of Pile Foundation With The Role Of Pile-soil Interaction

With the rapidly development of the high buildings, processing ofurbanization and the shortage of land resources. The pile foundation whichhas high bearing capacity, settlement of small and uniform, good stability, iswidely used in hing-rise building and other area of civil engineering. Thereare many problems should be solved due to the complex system of thepile-soil interaction. Generally, the research for pile foundation based on alarge number of field trials, and get in line with the actual law which hasbeen repeatedly verified in engineering. In this paper, take full advantage ofthe numerical simulation to analyze the effects of settlement, pile bearingcapacity and so on.It is necessary to analyze the issues with nonlinear finite theory due tothe complex system of the poil-soil interaction. The paper use ANSYSsoftware to build the single pile and four-pile foundation, based on theresults of previous researches. The main research contents and conclusionsin this paper are listed as follow:（1）With the development of the load increasing, the soil reactionforce is scattered uneven and to be showed in the middle of small,distributed on both sides of the big saddle, which is based on the results ofvertical loads.（2）Pile spacing is the most important content of the pile-soil loadsharing ratio, with the development of the load increasing, it is taking fulladvantage for the bearing capacity of the soil when taking the pile spacingvalue of3d-4d(d is the diameter of pile).（3）Axial force of the pile along the length showed a decreasingtrend, the inclination of the axial force reflect the size of pile side frictionresistance. An appropriate increasing the area of the cap can ultimate thebearing capacity of the pile.Finally, In order to test and verify the feasibility of the numericalsimulation, compared with the numerical results and measured data.