Abstract:Starting from the actual demand for geological work in Ji'nan Rail Transit Construction, by using GIS as the development platform, based on the 2000 National Geodetic Coordinate System, by using database, GIS, 3D geological modeling and visualization, numerical simulation, mathematical model analysis and evaluation comprehensively, a fourdimensional visual information system based on spatial database has been established. It can realize the standardized processing and unified management of multisource, and provide geological scientific basis for heterogeneous and massive geographic geological data, for rail transit construction and spring water protection, government decisionmaking, urban construction layout and functional zoning, disaster prevention, and rational development and utilization of urban land and underground space. The specification and unification of data content is the key to ensure the normal operation of the platform function. Combining with the database construction and practices of fourdimensional environment visualization platform, the analysis and processing of data sources has been studied. The establishment of the platform database has realized the unified storage and management of spatial data and attribute data, and provide a powerful guarantee for scientific application of the fourdimensional environment visualization platform of Ji'nan spring areas.
