Design And Numerical Simulation Analysis Of Deep Foundation Pit Supporting Structure In Guangzhou A Building

This paper, taking a deep foundation pit engineering of guangzhou as the background, using deep foundation pit software 7.0 on the deep foundation pit supporting structure design,And simulation are carried out by using the finite element analysis software Midas GTS, Verified the rationality of supporting schemes,Based on the supporting structure deformation behavior and the study of foundation pit anchor cable recycling schemes, solved the question of a foundation pit project of anchor cable recycling schemes, the specific content is as follows:1.Expounded the types of retaining structure of foundation pit engineering and optimization method, and according to the engineering geology and the surrounding environment to the foundation pit engineering, determines the appropriate supporting form of foundation pit engineering is a pile anchor bracing.2.Using the method of principle is the design of deep foundation pit software7.0,researched this foundation pit project of supporting structure design calculation?the overall stability checking and resistive overturning stability checking, by contrast with the specification,we can verify the feasibility of supporting schemes,And by supporting pile diameter, horizontal spacing, built-in depth and The vertical distance between anchor, concrete strength grade in a reasonable range of research, the displacement of supporting pile under the geological conditions of the biggest changes in the trend, and thus verify the safety and economy of supporting structure design.3. Arranged the project of the foundation pit monitoring results,typical profile has carried on the finite element simulation research, obtained under the geologicalconditions of step-by-step excavation supporting structure deformation law of the situation, the change of the anchor cable axial force, further verify the rationality of the design of foundation pit supporting through the contrast with and monitoring results.4.Enumerated several kind of anchor cable recycling program, By using the method of finite element simulation of anchor cable recycling schemes for the study of finite element simulation, Got the influence on the deformation of foundation pit supporting structure by each recycling way,And using the results of the finite element simulation, compare several recycling schemes, the anchor cable recycling schemes for the foundation pit engineering, solve the problem of the foundation pit of recycling, has practical significance.