Feasibility Analysis Of Integration Of Underground And Subway Station

With the rapid development of urban traffic, convenient transportation and traffic capacity have become the main factors for measure the degree of urban development. in recent years, urban rail transit has become the highlight of urban construction. for such rapid development in the city of Hefei, the ground is not only urban road but highway overpasses, at present there were eight overpasses in Hefei and there were two loop lines have been constructed, but still could not maintain normal traffic in the rush hour. based on the situation the city of Hefei in 2013 began the construction of the subway line No.1 and it will be completed in 2016.At the same time, the construction of the Hefei subway line No. 1?2?3 have been formated multidimensional network engineering in Mingguang road station and a lot of integrated constructions appeared. first,the project on the basis of various documents, datas and simulation models of engineering, then analyse geological datas and drawings analysis, including the position of foundation pit, soil conditions,the width and depth of excavation, the groundwater level around the building,analysis of underground pipelines. the second is based on the integration of the underground and subway projects, taking into account the interaction between the subway tunnel and subway station in the upper and lower structure layer. from the shallower to the deeper analysis of possible great difficulty in deep foundation pit excavation construction, and then use the construction of the station Mingguang road numerical analysis of three-dimensional finite element model, the structure is consistent with the measured structure and deformation of soil, and meet the design requirements of the support force, wall bending moment value, then verify the design requirements of the support by force system. finally internal force value using MADIS GTS established finite element analysis model to solve the foundation problems. according to the field monitoring data and the design data analysis to compared to the comprehensive analysis.It is concluded that the interaction between the underground railway station and the subway station during the course of excavated construction.