Application Of VR-GIS Technology In Geotechnical Engineering

Virtual Reality Geographic Information System (VR-GIS) is the new development of the combination of Geographic Information System (GIS) technology and Virtual Reality (VR) technology. It is the key technology of the application of digital earth. The study of the application of multiple technologies of many subjects dominates in the paper. VR-GIS technology and its application in the geotechnical engineering are explored. The main content is as following:1. From the point of view of system and the technology, this paper researches on several hotspot matters in the implementation of VR-GIS. It includes the core technology like the composition of VR-GIS, the technology system, landscape technology, cooperative working mechanism, Gigabytes processing, etc., and the development, the application foreground in the implement of VR-GIS of Geotechnical Engineering.2. This paper puts forward and studies the visual simulation technology based on geology terrain of VR-GIS technology; studies and realizes the visual simulation of the static state and dynamic state of geology disaster based on the VR-GIS, develops the visual technology in the geotechnical engineering as well.3. The technology of VR-GIS geology landscape is studied, including the initialization and vision technology of the data based on the cooperative and integrative mechanism of VR-GIS. The cruising mechanism of geology landscape in the VR-GIS based on the graphics interaction technology is studied, including the cruising technology of different data structure.4. For the first time, aiming at the Gigabytes processing of VR-GIS, this paper probes into the large scope 3D reconstruction of the geology landscape with the microcomputer. Aiming at different data source, the 3D reconstruction of geology terrain landscape is studied in this paper.5. Wavelet transform is applied to compress and decompose and buildup geology image without losing the information, etc. in the VR-GIS geology landscape reconstruction in this paper.6. Visualization of arch dam and bridge engineering with VR-GIS technology are explored in this paper.