| With the rapid development of China’s economy,it continues to accelerate the process of urbanization, cities have begun construction of the underground railroad,and the resulting problem is that the excavation in complex surroundings deep foundation.The paper analyzed the construction process of monitoring data, the calculated results were compared with the monitoring results can be seen from the comparison of results obtained with the variation of the results of the monitoring results are basically the same, basic pit deformation the same study stability FLAC3 D sunken tunnel excavation is reasonable.Thesis pit, pit soil around the foundation and surrounding buildings were analyzed as a whole. This using FLAC3 D dimensional finite element model, pit, soil around the pit and the foundation and surrounding buildings were analyzed as a whole. Through on-site monitoring data, analysis of stress during construction excavation pit deformation bored piles and buildings surrounding soil deformation changes, summarized the typical geological conditions, excavation construction of surface deformation, affect excavation deformation and deformation of surrounding buildings, and the buildings were monitored settlement deformation analysis. |
