Double-row Piles-anchor Cable Composite Supporting Structure In Soft Soil Foundation Application And Numerical Simulation Analysis

Double row piles-anchor cable composite supporting structure is a novel foundation pitsupport technology, which combines the technical advantages of the pile-anchor retainingstructure with double-row piles retaining structure, and structure designed as a whole. Highoverall stiffness, support good effect, effectively controlling deformation of foundation pit hasbeen successful, especially in soft soil areas of application instance. But on the study of thisstructure are not extensive, lack of field measurement data, its theoretical analysis lags far behindthe actual application, in the application of finite element analysis were powered by atwo-dimensional plane analysis, there are limitations to the understanding of the supportingstructure and the pit overall deformation characteristics.First introduces several classical soil pressure theory and theoretical stress analysis ofdouble row piles-anchor cable composite supporting structure, by using the finite elementdifference method FLAC^3Dnumerical simulation software, on the basis of Yingkou Hong YunSquare （Carrefour） pit supporting projects, create a three-dimensional numerical model,simulation calculation excavation process in the support nurse structure and pit of internal forcesand deformation and site measured data relative than, discuss analysis support structure in softsoil area deformation law, and at the same time apply the simulation software to a comparativeanalysis of many factors that affect the performance of the supporting structure,drawdouble-row piles-anchor cable composite supporting structure in soft soil foundation excavationeffect，and can be widely applied.