Analysis And Research On Influence Factors Of Soil Correction Technique For Buildings

The deviation-rectifying technology of sloping soil is refer to dig different angled-holes the side of the building settlement smaller and distance the foundation a certain depth when the side of the base of building large settlement has taken reinforcement measures to guarantee it is no longer continue to settlement. Through the basal soil stress release and the plastic deformation of soil around the hole and volume reduction of the soil holes control the structure of the leaning back and eventually right the buildingThe sloping soil deviation-rectifying technology is an important branch of landing rectification method. At present, although there has been a lot of successful engineering examples, in the study of the theory of the soil correction technology,horizontal soil and vertical soil rectifying methods mostly adopted and seldom consider sloping soil correction method.In this paper, the soil of the tilt angle, aperture, hole depth and hole spacing on the building of rectifying effect has been analyzed according to a rectifying project in JiNan. The finite difference program software FLAC3D is used to simulated whole process of the deviation-rectifying of sloping soil on the whole building and compared with engineering measured data.It is concluded that the process of the deviation-rectifying of sloping soil can be simulated by the software of FLAC3D. Finally,this paper discusses the change rule of stress and kthe plastic zone and the settlement when the different angle deviation-rectifying technology of sloping soil is adopted. In this article the main contents are:(1) According to the situation of engineering examples, the finite difference program software of FLAC3D is used to established the three-dimensional calculation model of interaction of the upper structure load and soil, to simulated the deviation-rectifying of sloping soil water and summary the rule. In the calculation model,the elastic model is used in the upper structure, Moore-coulomb modes used in the basal soil and the large deformation materials is used in the soil around the hole.(2) Through the comparison of the simulation results and the actual correction values, It is concluded that use analysis software to make a numerical simulation of the slope soil deviation-rectifying feasible and we can also use this software to make a quantitative analysis about the influencing factors of building subsidence effect.(3) The origin of software is adopted to the data analysis of the measured data and numerical simulation data in engineering, and make a visual data graphics. We has made a sensitivity analysis of the different slope soil angle, the diameter of the hole size,the depth and spacing of the hole on the rectifying building, and discuss the three influence factors on the influence law of rectifying effect.