Application And Numerical Simulation Analysis Of The Disturbed Soil Wall For Stress Release

Based upon the advantages of noiselessness、 cleaness、 high efficiency etc, the jacked pile has developed rapidly since it was invented,what’s more,it shows great potential to domain the market, following the development of the construction of our country and civic demand gradually-increased of healthy environment.But there is a problem that jacked pile will bring up of squeezing effect of soil around the piles.For the past many years,many scientists have studied the subject though Cavily Expansion Method、strain Path Method、Finite Element Method and so on.They also bring up some solution.The article summed up the previous study about the squeezing effect and give a detailed introduction to all the solution. It also introduces the mechanism of penetration of pile to solve the problem purposefully.The article presents a new method of solve the problem of squeezing effect—the Disturbed Soil Wall for Stress Release.It was used in a project in hangzhou city.The article introduced how to make the Disturbed Soil Wall for Stress Release using the tri-axised machine for stirring.We installed the monitor aroud the Disturbed Soil Wall to keep a record of the horizontal displacement of the disturbed soil.then we analyzed the statistics.As the development of the finite element software,more and more scholars anlyze the problem by finite element model.Abaqus is a great finite element software,for it could solve complicated problems and nonlinear problems, it is the best software applied in penetration of the jacked pile.Abaqus handeled with the large strain, nonlinearity and the selection of constitutive models well. It simulated the penetration of a single jaked pile in homogeneous soil with a disturbed wall,it anlyzed the changes of the horizontal displacement、horizontal stress and vertical displacement across the disturbed soil when the disturbed soil has different depth. width, distance from the pile.Then Superimpose the effective of several single piles to simulate the effective of pile group.