GIS modeling with deep pit monitoring data and Corresponding Decision-making Support

In order to reflect the actual deformation degree and trend of building structure and foundation pit, it was necessary to carry out the deformation measurement of subway construction and information management of construction monitoring. At the present moment, GIS had been applied in many fields but rare in analysis of deformation monitoring data. In this paper, GIS, with powerful capabilities of data analysis and graphics editing, was applied to build model of deep pit monitoring data. Based on GIS modeling, monitoring data visualization and analysis were realized by such as curve drawing of deformation progress, contour lines drawing of deformation region, 3D analysis and deformation thematic maps drawing, etc. Then, the bases of the risk evaluation of subway construction could be provided intuitively and reliably.