西南大型水库库岸滑坡灾害三维地理信息系统研究

Research of 3DGIS for Reservoir Landslides in Southwest China

水库滑坡灾害三维地理信息系统(3DGIS)的建设已成为水库地质灾害防治的重要需求。以西南大型水库库岸滑坡灾害为对象,在设计系统总体框架基础上,通过对滑坡灾害相关数据分析,提出以GIS空间数据库为核心、结合关系型数据库和多媒体文档库的滑坡数据集成管理和建设方案;同时详细论述了基于Skyline的滑坡灾害3DGIS系统的技术架构,以及包括库区三维场景浏览及漫游、滑坡查询及空间定位、滑坡基础信息浏览、数据动态更新管理维护等在内的主要功能。总体来看,西南大型水库库岸滑坡3DGIS系统既搭建起了有效集成管理库区滑坡灾害相关信息的数据平台和框架,也实现了以数据管理及展示功能为主的三维空间信息系统,具有很强的实用参考价值。

Building three-dimensional geographic information system( 3DGIS) for landslides has become essential for geological disaster prevention and mitigation during the construction and operation of large reservoirs. With landslides in several large reservoirs in Southwest China as research object and on the basis of 3DGIS system framework design,we present the data integration and management plan for reservoir landslides which is centered on GIS spatial database and consisted of relational database & multimedia-document base. Furthermore,we elaborate on the technical framework of 3DGIS which is based on Skyline,and describe the main functions including 3D scene browsing of reservoir region,landslides query and spatial location,browsing of landslide information,dynamic data update and management. Overall,a complete and effective data integration management platform with a fully functional three-dimension space information system is built in the 3DGIS for reservoir landslides in Southwest China. It is of practical significance for the informational management of reservoir landslides.