中文摘要：

结合城市地下管网数据的现状，建立地下管网数据的时空数据结构；针对较少数据量的竣工测量数据和较大数据量的普查数据分别采用了基于要素和基于范围的更新方法，同时建立起数据的历史回溯机制，实现任意时间点数据的查询展示。实实在在解决了地下管网数据的现势性以及历史数据维护问题。

英文摘要：

Considering the developing situation, this paper constructs the spatial-temporal data structure of urban underground pipeline data. Object-based updating method is purposed for the relatively small data of completion measurement.Scope-based updating method is for the mass data of surveying census data. This paper also develops historical retrospect mechanism to present data of any time point. Therefore, it provides a solution for the data currency maintenance and historical data management of underground pipeline data.