Foundation Framework for City Underground Spatial Data

The foundation framework for underground spatial data aims to establish the platform for the underground spatial data sharing and integrating. The reasons lie in that: a) the long-term development of city construction has accumulated abundant underground spatial data and information; b) the development and utilization of city underground space demands for clear, detailed and visualized comprehensive city underground information. Based on the analysis of the characteristics, the foundation framework for city underground spatial data can be established by taking the regional geology data as its background, bedrock borehole as its skeleton, Quaternary borehole as its brace, engineering borehole as its contents and other data captured as its complementarities. Some key issues, such as multi-scale, multi-semantic, data dynamic updating must be solved. The foundation framework for urban underground spatial data offers not only uniform spatial coordinate and semantic system, but also the platform for comprehensive displaying and analysing the spatial data to support the mineral resources exploitation, geological disaster precaution and the urban underground space exploitation, plan, development and utilization.