Application And Research Of Pile-anchor Supporting Structure In Engineering

With the development of urban modernization in China,it is necessary to make full use of urban space and Form a pattern of the integration of the ground and underground space.In the underground space development process,always facing the problem of deep foundation pit engineering support.the degree of deformation will directly affect the quality of deep foundation pit engineering When the supporting structure is used in deep foundation pit engineering.Therefore,it is very necessary to design a safe,reliable and economical supporting structure.The pile-anchor supporting structure has the advantages of strong adaptability,effectively restraining the sliding failure of the soil,reducing the displacement of the passive soil in the deep foundation pit and reasonable engineering cost.It is a kind of important and commonly used supporting structure in deep foundation pit engineering.There are many factors that affect the deformation of the pile-anchor supporting structure,but there are still some gaps in the study of the factors affecting the deformation of the pile-anchor supporting structure.In this paper,a deep foundation pit in Beijing in the local area of the pile supporting structure for the research background,the main research content includes the following aspects:(1)Summarize the research status of pile-anchor supporting structure at home and abroad,summarize the types and characteristics of supporting structure of deep foundation pit engineering,and compare it with that of pile-anchor supporting structure.(2)Based on the theory of pile-anchor supporting structure,the deformation characteristics and working principle of pile-anchor supporting structure are expounded.(3)Based on the application of pile-anchor supporting structure in practical engineering,this paper studies the factors affecting the deformation of pile-anchor supporting structure,and uses the ANSYS software to analyze and analyze,and optimize the deformation design parameters according to the results.(4)Combined with the actual engineering safety monitoring data by using Li zheng software,checking,analysis of pile anchor retaining structure in retaining pile deformation,comparison and simulation and finite element software data,provide data support for the optimized design calculation.(5)Combined with the deformation of pile and anchor structure during construction excavation,some control measures to reduce the displacement of support structure are summarized,which have certain engineering significance for deep foundation pit support.