Study On The Effect Of Reinforced Concrete Horizontal Support Axial Force And Deformation For The Deep Foundation Pit Of Row Pile + Waterqroof Curtain

With the development of high-rise and high-rise buildings,the development of urban basement commercial space and the construction of subway facilities,the deep foundation pit and its supporting works are becoming more and more frequent,and the factors that affect the safety of deep foundation pit support are numerous Some factors or time-related variables,which makes the deep foundation pit support project has become one of the hot and difficult problems in the engineering sector.In this paper,a three-dimensional numerical model for the support of the cast-in-place concrete pavement and the waterproof curtain is established on the basis of validating the numerical analysis.This paper studies the horizontal deformation caused by the row of rowing piles,the settlement of the surrounding soils of the supporting works,the variation rule of the internal support axial force of the concrete in the excavation stage of the foundation pit and its influence on the whole supporting effect.The ultimate bearing capacity of concrete within the concrete and the influence of the initial deformation on the internal force of the concrete under the action of the self-weight.At the same time,0.5,0.6,0.7 and 0.8 times of the different supporting members And the influence of the pre-pressure on the support effect of the concrete in the concrete before the excavation is obtained.This paper also discussed the steel column displacement and the stiffness of the column size effect on deformation of components of axial force,the concrete support,so as to analyze the deformation of axial force,each component in supporting changes on the bracing effect,and draw some conclusions.