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基于GIS的滑坡空间特征分析 被引量:5

Analysis on Spatial Characteristics of Landslide Based on GIS
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摘要 基于G IS技术对滑坡及其渗水盲洞疏干土体的空间特征进行了分析。首先讨论了基于三棱柱模型的滑坡体体积计算,然后提出确定渗水盲洞疏干土体边界与地面交线的方法,以此确定疏干土体的空间形态和体积计算方法,并以西昌-攀枝花高速公路沿线米易滑坡为例,对该滑坡的体积特征和渗水盲洞疏干土体的空间形态进行了分析和计算。 The spatial characteristics of landslide and dewatered body of drainage tunnel are analyzed GIS. Firstly, calculation of landslide volume is discussed by use of the triangular prism model. And then a method for determining the intersecting curve between the rough topographic and dewatered boundary of drainage tunnel is proposed. Using such method, the spatial features and volume of dewatered body can be estimated accurately. Taking the Miyi landslide along Xichang-Panzhihua freeway as an example, both the spatial features and volume of the landslide and dewatered boundary of drainage tunnel are analyzed.
出处 《灾害学》 CSCD 2006年第3期22-26,共5页 Journal of Catastrophology
基金 国家自然科学基金西部重大研究计划项目(90202007) "西攀高速公路地质灾害研究与对策"西攀高速公路指挥部配合工程建设科研项目
关键词 滑坡体 体积 渗水盲洞 疏干漏斗 地理信息系统 landslide body volume drainage tunnel dewatering funnel GIS
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