城市三维地质信息系统的目标、功能与架构

利用现代信息技术构建一个集城市地表、地上、地下多雏、动态空间信息于一体的大型综合性三维地质信息系统是解决当前我国城市发展所面临的一系列地质问题的关键，该系统集信息输入、数据库管理和三维地质数据可视化分析功能于一体，并在此基础上实现城市地质环境常规分析评价、动态监测功能以及城市地质信息的Web发布和增值信息服务．在具体实现时，采用多层体系结构建立系统的总体架构，充分利用C／S、B／S结构各自的特点和优势，实现对海量空问地质信息的高效处理。

Purpose,function and architecture of urban 3D Geological Information System

To solve a series of geological problems caused in the urbanization process in China, it is necessary to construct the Urban 3D Geological Information System based on the ultramodern information technology. The system, which combines the multi-dimensional and dynamic spatial information of urban space into an integrated spatial information system, realize such functions as data acquisition, database management, 3D geology modeling and visualization of geological data, general evaluation and dynamic monitor of urban geological environment, broadcasting of urban geological information through World Wild Web. To obtain high efficiency capacity of very large-scale database, the system adopts a multi-tier construction utilizing the characteristics and advantages of C/S and B/S structure.