Finite Element Analysis Of A Foundation With Pile-anchor Structure In Shenzhen

The type of deep foundation and their corresponding algorithms are described;several soil construction models and finite element analysis software are introduced.The displacements of36#pile and173#pile in a certain foundation pit inShenzhen are simulated representatively with the finite element analysis softwareABAQUS and the results correspond each other basically with monitoring data. thepiles are analyzed with optimum approach. the main research contents and results areas follows:The monitoring and simulated data adopted from foundation pit design arecorresponded each other basically and the simulated ones are prone to be lower incase of the following hypotheses: mechanics property changes with foundation pitdeformation, disturbing from construction and under-ground water level which causesimulated data lower.Influences on supporting piles from various parameters are simulated. Influenceson horizontal displacement of supporting piles from lowering horizontal displacementoptimum plans are put forward(piles diameter:1200mm; anchoring cable angles:23°; prestressed force:60%locking values; thickness of stirring piles:4m).Simulation results compared with monitoring data of piles36#show thatABAQUS simulated results can better reflect the soil stress status and piles horizontaldisplacement; increasing anchor cable prestressed values can lower the horizontaldisplacements of supporting piles.