The Research On The Influence Of Foundation Pit Excavation On The Surrounding Environment

With the development of the city,more and more urban buildings are beginning to develop underground.The application of foundation pit engineering is becoming more and more extensive.The influence of foundation pit excavation on the surrounding environment is receiving more and more attention.How to effectively control the deformation of the foundation pit and the surrounding buildings The influence of the material makes the foundation pit project safe and economical,which is a subject that people have been exploring.Based on the foundation pit engineering of Xinhua County building materials market,this paper uses on-site monitoring and MIDAS/GTS,MIDAS/Gen software numerical simulation analysis to study the foundation pit excavation support structure and surrounding proximity.The law of influence of buildings.The following main results have been achieved through research:(1)On-site real-time monitoring of the whole process of foundation pit excavation,through the analysis and processing of monitoring data,using the chart method to obtain the horizontal displacement of the pile top,the surrounding surface settlement and the deformation law of adjacent buildings.(2)Using MIDAS/GTS finite element software to establish a three-dimensional numerical model of the foundation pit and surrounding buildings,study the horizontal displacement of the supporting structure,the settlement of the surrounding surface and the deformation law of the building,and real-time monitoring data and numerical calculation on site.The results were compared and analyzed,and the influence law of foundation pit excavation on the surrounding environment was obtained,and the safety of the surrounding environment was evaluated.(3)Based on the influence of differential settlement on the adjacent buildings in the foundation pit,the influence of foundation pit excavation on the additional internal forces of adjacent buildings was theoretically analyzed,and the internal force changes of the buildings under different flexure intervals were further studied using MIDAS/Gen software.Regularity,the study of buildings with different relative positions of foundation pits is affected by excavation of foundation pits,the law of internal force variation of building structures,and the ability of buildings of different basic forms to resist foundation deformation.