基于GIS的城市地面沉降信息管理与预测系统研究

Study of urban land subsidence information management and prediction system based on GIS

在分析3D GIS(地理处理系统)技术研究状况的基础上,详细讨论了基于GIS的城市地面沉降信息管理与预测系统的设计思路和功能、体系结构。提出了基于地下水抽汲的地面沉降计算模型的选择原则、基于混合数据模型的地面沉降信息三维建模、数据可视化流程及系统Web发布功能的3层体系结构等解决系统建设中难题的方案。

Based on reviewing three-dimensional geographic information system（3D GIS） technology,an information management and prediction system for urban land subsidence is designed on the basis of GIS technology.The detail of design thought,function and structure of the system is introduced.The authors proposed a series of blue print for key problems when constructing the system,such as the principle for choosing land subsidence modeling based on porous water migration,the process of 3D land subsidence modeling and its volume visualization supported by the mixed data model and three layers structure for the information broadcast function of the system through Web,etc.