Numerical Simulation Study On Pile Anchorage System In Deep Foundation Pit About A Project In Handan

In the first part of this paper, the current calculation theory in common use of deep foundation pit engineering are introduced,finite element method has become a practical and effective means in analyzing Geotechnical Engineering problems. The basic function and virtue, the interior module's characteristic and the gigantic material database and element database of FLAC are introduced in the paper. In this paper, I regard the engineering as a plane strain problem; study the internal force and distortion law of supporting structure. Create different models to analyze the deformation of supporting structure by changing the length of pile.The main research contains: The choice of soil body model, in this article the soil body uses the Mohr-Coulomb model, pile and anchor unit will be used; Setting up initial geo-stress field, Exerts the Load stress to the soil body, this action and the soil body initial stress just right balance, causes the soil body the initial displacement is zero; Simulation of excavate foundation pit, use the order null to make the Simulation of soil excavation; establish the soil excavation stress field and displacement field of each step; Mechanical analysis of the pile and anchor, and change the parameters to make A reasonable simulation results, and verify the reasonableness of finite element simulation.