Numerical Simulation For Multi-pivots Row Piles Based On ANSYS

Support problems in deep excavations in the designing of multi-pivots piles are studied and applied on the basis of board and pile theory, and don't consider the process of excavation. Supports seem there in the beginning, what means that we don't consider the change of sustain react and structure deformation. There are several measures on the calculating of multi-pivots piles, most of which have defects in certain degree and have differences with real construction. The article mainly on the basis of row piles theory, apply finite element analysis software ANSYS to select proper simulation element, simulate structure of multi-pivots row piles, consider the change of sustain react and structure deformation during the excavation. The author make some simplification during the process of simulating excavation, according to the course of "deform before support" during the excavation, consider unload effect and interaction of support structure and soil, establish parameter model, adjust sustain condition and load dynamically, respectively calculate internal force and displacement after every excavation, get cloud pictures of internal force and displacement of calculation results, and arrange and synthetic analysis calculation results. The article resort to FEA ANSYS to simulate row piles, its calculation is practicable and directly, and we can provide accordance for designing and constructing in the projects and offer platform and analysis tool for designing and study.