Data Analysis Of Hefei New Traffic Building Deep Foundation Ground Settlement Monitoring

In recent years, with the rapid development of our social economy, urban construction also reached a again a new peak.Follow the biggest change is constantly emerging,high-rise building as an important part of high-rise building of deep foundation pit have been more and more attention and recognition.Deep foundation pit project is very complicated in geotechnical engineering, deep excavation will inevitably cause all kinds of deformation, timely discover and control deformation is crucial for the project smoothly.As the key part of the informationization construction work, therefore, in the process of the construction of deep foundation pit engineering deformation monitoring and prediction,became one of important research problem of deep foundation pit engineering.Based on hefei new traffic building deep foundation pit engineering as the research object,carried out the ground surface subsidence rule of safety monitoring and the surrounding neighbors.Variation characteristics and monitoring method for the settlement in the summary and induction, on the basis of the main content of the research is:1.Summarizes the purpose and significance of deep foundation pit monitoring, and combined with actual situation analysis of the particularity of the project, has been clear about the appropriate monitoring plan and monitoring requirements, setting reasonable monitoring method is presented.At the same time, in order to ensure the reasonable monitoring work smoothly, according to the need to put forward the monitoring alarm and monitoring frequency, the security and control in order to grasp the project overall schedule provides a reliable basis.Summarizes the purpose and significance of deep foundation pit monitoring, and combined with actual situation analysis of the particularity of the project, has been clear about the appropriate monitoring plan and monitoring requirements, setting reasonable monitoring method is presented.At the same time, in order to ensure the reasonable monitoring work smoothly, according to the need to put forward the monitoring alarm and monitoring frequency, the security and control in order to grasp the project overall schedule provides a reliable basis.2.This paper expounds the process of deep foundation pit excavation on surrounding the earth’s surface, the influence of the deformation characteristics of deep foundation pit surrounding the earth’s surface are summarized, analyzed the factors, which affect the surrounding ground surface deformation and the deformation mechanism.Combined withengineering example, formulate the reasonable effective monitoring plan.In the introduction to the monitoring of deep foundation pit project implementation, on the basis of judging its deformation control quantity, and analyze the monitoring of the proceeds of the original data processing, it is concluded that the surface deformation laws of time and space.At the same time, this paper uses the finite element analysis software MIDAS/GTS simulated the process of deep foundation pit excavation, analysis of the deep foundation pit excavation process of surface subsidence, and the numerical simulation results compared with the actual monitoring data, using statistical analysis methods to analyze data, finally,how to control the surface subsidence in corresponding measures are put forward.3.According to the new traffic building subsidence monitoring data of deep foundation pit, using the grey model GM(1, 1) forecast foundation pit surrounding ground deformation, the analysis in the process of computing the scope of application of grey model and the different situation are analyzed and compared, achieved good prediction effect, and its optimization.Paper pasts the analysis of the deformation characteristics of deep foundation pit engineering around the surface and monitoring the status quo, combined with the new traffic building deep foundation pit monitoring data, using the grey model to predict the future development of the surface subsidence value, through the contrastive analysis of the different simulation results and measured data, discusses the error of the prediction results,the results in the process of foundation pit excavation and surrounding ground settlement of the building changes monitoring has a certain reference value.