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首页> 外文会议>IEEE International Conference on Spatial Data Mining and Geographical Knowledge Services >Landslide hazard evaluation of Zigui based on GIS information model in three gorges reservoir
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Landslide hazard evaluation of Zigui based on GIS information model in three gorges reservoir

机译：基于GIS信息模型的三峡信息模型基于GIS信息模型的滑坡危害评价

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The landslide hazard was evaluated based on the Zigui section in three gorges reservoir in this paper. First of all, the geology, topography and other information were analyzed to establish the landslide geological hazard database of Zigui segment; then, the digital elevation model (DEM) of such this segment was built by inputting each data in the form of map layer into the GIS (geographical information system) and combing geography information system technology; some geography information was collected, such as elevation, slope direction, gradient as well as the distance to the river; then the geological information of the research area was collected according to the geological survey data, such as formation lithology, geological structure, and so on; at last, the six indexes presented above were considered as evaluation factors to establish a landslide geological hazard model. Each information value of each layer was calculated by the model to obtain the information map of a single factor; then they were accumulated to obtain the integrate information map of the whole research area, namely, the landslide hazard shot chart. The landslide geological hazard area was divided into four grades in accordance with different shots: stability area, low-dangerous area, middle-dangerous area and high-dangerous area. It is indicated by the evaluation result that information model, which can well service the research of landslide hazard, is an effective method to carry out regional geological hazard forecast. The evaluation result can provide references for reservoir engineering safety, environmental protection as well as natural disasters prevention and reduction to realize the informationization and scientificalization of landslide geological hazard prevention and reduction.
机译：本文基于三峡库区的Zigui部分评估了滑坡危害。首先，分析了地质，地形和其他信息，建立了Zigui段的滑坡地质危害数据库;然后，通过将地图层的形式输入到GIS（地理信息系统）并梳理地理信息系统技术来构建这种该段的数字高度模型（DEM）;收集一些地理信息，例如海拔，斜坡方向，渐变以及到河流的距离;然后根据地质调查数据收集研究区域的地质信息，如地质岩性，地质结构等;最后，上面提出的六个指数被视为建立滑坡地质灾害模型的评估因素。通过模型计算每层的每个信息值，以获得单个因素的信息图;然后，他们被累积以获得整个研究区域的整合信息图，即滑坡危险拍摄图表。 Landslide地质灾害区域按照不同的镜头分为四个等级：稳定区域，低危险区域，中危险区域和高危险区域。通过评价结果表明，信息模型可以妥善维修滑坡危害的研究，是开展区域地质灾害预测的有效方法。评估结果可以提供储层工程安全，环境保护以及防治预防和减少的参考，以实现滑坡地质灾害预防和减少的信息化和科学化。

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