Google Earth在线性工程地质灾害调查中的应用

Application of Google Earth in geological disaster survey of linear project

线性工程穿越的地貌单元众多,地质条件复杂,包含的信息不仅数量庞大而且类型多样,为了全面反映沿线地质信息。结合GIS、GPS、三维遥感技术,以Google Earth为平台实现了多源信息融合和可视化,以及全面、立体、多角度的地质信息管理,提高了复杂线性工程地质灾害调查的效率和质量。以某线性工程地质灾害调查为例,说明其在预调查中重点圈定、线路规划、实时修正调查路线等方面的优越性。

A linear project usually goes through numbers of geomorphic units and is characterized by complex geological conditions that contain large quantity and diverse information.In order to fully reflect the geological information along the route,aided by GIS,GPS and 3D remote sensing technologies,the Google Earth forms a platform that realizes the fusion and visualization of multi-source information,and provides a comprehensive and multi-perspectives of management of geological information,which improves the efficiency and quality of geological disaster survey of complex linear project.The method show its superiority in the aspects of key point determination during pre-survey,route planning,and real-time correction for route survey by an example of geological disaster survey of a linear project.