Pile Anchor Design And FLAC3D Simulation

Foundation pit engineering is not only an important component of geotechnical engineering, an important technical link and ensure the safety of foundation pit and stability or the overall.Due to the uniqueness of pile- anchor supporting and mechanical properties,not only in the foundation pit supporting process to ensure the safety and stability of foundation pit supporting structure itself, and in its stable under the premise but also ensure the surrounding buildings, underground pipelines, the environment are not affected.Therefore, study on the improvement and development of pile anchor retaining structure stress and deformation has important significance.In this paper, an engineering case as research object to carry out the following work:(1)Extensive collection of previous order data, papers, theoretical data, example test and 3D numerical simulation technology, simulation technology and other scientific methods and combined with the engineering test data, to study the research status of pile anchor support in foundation pit design, so as to understand the research frontier of pile- anchor supporting mechanism.(2)Study the present situation, the earth pressure calculation principle and understanding on this subject to master pile anchor support technology in the domestic and foreign research present situation and the latest scientific design methods, the related calculation principle of earth pressure by learning and pile anchor support overall stability, such as resistance to overturning stability checking the pile anchor supporting research carried out for the next step.(3)Use reason is two-dimensional plane and checking calculation of deep foundation pit design software 6.5 to ensure the overall stability of the foundation pit,resistive overturning stability, resistance to overturn stability, etc.Using FLAC3 D three-dimensional numerical simulation method of the slip plane of the foundation pit distribution and its influence factors, the soil around the uplift subsidence, horizontal displacement and settlement of pile bending moment is analyzed.With the final 3d model of the data were compared with the actual monitoring data, the conclusion is that the two data trend is roughly the same.