The Pile Anchor Supporting Structure Of Foundation Pit Stability Analysis

In recent years, the rapid development of geotechnical engineering, foundation engineering is one of the most important in the study support system, many scholars have done a lot of interesting research. Head of research paper is based on field measurements of dynamic real-time professional report data, analysis of data and affect the stability of the characteristics and use MIDAS/GTS finite element software to establish a Mohr-coulomb constitutive model simulations under various actual construction stability of soil conditions and in accordance with the actual project to stake anchor bracing and soil nailing comparison with simulated conditions, concluded, provide help for future design and construction.In order to clarify the pit pile-anchor supporting conditions, deformation characteristics pit and pit outside the building, paper-site construction program and the measured data of the design and analysis, the law has been building settlement curve diagram, top of the pile horizontal displacement curve diagram law, the law of the pile vertical displacement curve diagram, and do the analysis, in order to further numerical simulations provide comparative basis.Finite element simulation software simulation support excavation of soil stability, and pile-anchor and soil nailing two sets of simulations were compared. When provided only soldier pile retaining retaining soil stability have been greatly improved; prestressed anchor when implanted layered support, and support before support has been greatly improved after the displacement, anchor segment effective with the soil to form an adhesive effect, seize control of soil depth of soil, demonstrating the prestressed anchor the horizontal displacement of the soil has good control supporting effect. In as close to the actual construction, analyzed the cause simulation of excavation slope instability, obtained by simulating the safety factor Fs>>1.0, fully proved excavation safety of the design, and then Under this proposed safety factor design optimization recommendations. Designers come to the necessity of supporting the choice of anchor pile in contrast to pile anchor with soil nails, find the lack of soil nails. If the simple application of a single row of piles, then, there are still uncertainties in the analysis.