| With densely populated problem increasingly sharp, deep foundation pit engineering application in the city is increasing.Because of the urban engineering complex hydrogeological conditions, surrounding buildings densely, deep foundation pit excavation depth, the single supporting structure has been difficult to meet the actual requirements.In order to solve this problem, a combination of a variety of supporting structure has been implemented in many deep foundation pit engineering.But, for a variety of stress and deformation of the supporting structure work together when the research is relatively lacking.Therefore, it is necessary to carry on the detailed study.In this paper, based on commercial finance projects in Beijing chaoyang district diffused, system research to connect wall in supporting anchor supporting system of stress and deformation, focus on monitoring to connect wall wall deformation and anchor axial force, and analyzes the relationship between the two.Using Midas/GTS finite element numerical simulation software for simulating actual engineering, and analysis the simulation results, and compared with the actual monitoring law research, a general conclusion.This article main research content is as follows:(1)According to the Beijing chaoyang district sunlight, 5, 6, commercial finance project, deep foundation pit monitoring data obtained in this project the wall horizontal displacement, wall deep horizontal displacement and axial force of bolt change curve.Analysis curve, respectively to get even the wall deformation and axial force of bolt, and both the analysis, it is concluded that the deformation and the internal relation between the axial force.(2)Use of Midas/GTS finite element numerical simulation software for simulating the actual project, and the simulation results compared with field monitoring data, certainly the deformation of the wall in supporting anchor supporting system, internal force and the relationship between the two, at the same time to determine the accuracy of the simulation model and parameter selection.(3)Technical parameter optimization analysis, the use of single variable test method, studied the even wall built in depth, and the earth even wall thickness, anchor length, anchor solid solid cross-sectional area, the influence of the incident Angle of anchor supporting structure deformation. |
PDF Full Text Request