Soft Soil Deep Foundation Pile Anchor Bracing Design And Numerical Simulation Analysis

After the21century, with the rapid development of China’s economy, China’surbanization process is also accelerating, high-rise buildings are emerging, undergroundshopping malls, underground parking and underground municipal facilities are growing,deep excavation also more and more. Most of these projects are located in denselypopulated urban areas，geological conditions and the surrounding environment are morecomplicated, and the scale of the excavation is gradually increasing, which rationalityand safety of excavation support design have higher requirements.In this paper, rural housing project in Wenzhou deep excavation project as anexample. In-depth study of the characteristics and scope of excavation common form ofthe supporting structure, combined with the specific circumstances of the project, thisdesign select the method of anchored piles in.Meanwhile, after analyzing the advantagesand disadvantages of common support design rationale, select the equivalent beammethod supporting structure design. Then the elastic foundation beam method tooptimize the results will be optimized to support the structural design.After completionof excavation support design stability checking, to prove that the method is feasiblesupport. Finally Introduced FLAC3D finite difference software principles andcharacteristics, then the software used for excavation support numerical simulationanalysis process to get changes in stress and displacement of soil.Through the numericalsimulation results were analyzed during excavation can be drawn from the weak linksand make a reasonable proposal for excavation program to optimize.