面向城市地质信息平台的3维技术研究

Study of 3D Techniques for Urban Geological Information Platform

利用现代信息技术构建一个集城市地表、地上、地下多维、动态空间信息于一体的大型综合性空间信息平台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, 3维地质建模及其前后处理问题是平台建设面临的主要技术瓶颈。本文简述了城市地质信息平台的建设目标与功能特征,探讨了平台建设中的3维技术瓶颈,如3维空间数据模型、3维地质建模和3维地质数据的可视化表达与分析, 同时介绍了作者在相关领域的研究进展与最新成果,指出了下一步需要重点研究和解决的技术难题。

To solve a series of geological problems that cities bring during the urbanization process in China, it is necessary to construct the Urban Geological Information Platform based on the modern information technology. The platform combines the multi-dimensional and dynamic spatial information of urban space into an integrated spatial information system. 3D geology modeling and its pre or post processing is the most difficult problems faced to the construction of the platform. The paper introduces the purpose, functions and services that the platform should provide, and discusses some basic problems met in the carrying out of the platform, such as 3D spatial data model, 3D geology modeling and visualization of urban geological data. The paper also introduces the recent development attained by authors. At last, the paper briefly reviews some key techniques that expected to be studied in the near future.