Identification of the affected areas by mass movement through a physically based model of landslide hazard combined with a two-dimensional flood routing model for simulating debris flow
Identification of the affected areas by mass movement through a physically based model of landslide hazard combined with a two-dimensional flood routing model for simulating debris flow
复制标题
通过基于物理的滑坡灾害模型与模拟泥石流的二维洪水路径模型相结合，识别受大规模移动影响的区域
DOI：
10.1109/igarss.2007.4423484
复制
发表时间：
2007
期刊：
影响因子：
--
通讯作者：
É. Martins
中科院分区：
文献类型：
--
作者：
R. Guimarães;R. Gomes;O. A. Carvalho;Eurípedes A. Vargas Júnior;N. Fernandes;É. Martins
自然灾害是世界上最严重的社会经济问题之一，其中最值得注意的问题之一是群众运动，这是一种自然现象，改变了救济状况，给人类造成巨大损害。质量运动可按以下分类：所涉及的材料类型、运动速度和机制、变形类型、位移质量的几何形状和含水量。其中，浅层滑坡尤为突出。这些运动是在夏季频繁的强降雨期间触发的。浅层滑坡转化为泥石流的主要原因是水的入渗。它们到达的距离长，速度快，运输能力强，包括大圆石。不仅要预测浅层平移滑坡，而且要预测泥石流的发生和作为次级效应的径流。本研究的目的是开发一种方法，它结合了一个模型来预测滑坡与另一个确定泥石流路径和沉积。研究区域位于巴西里约热内卢Jacarepagua社区的Macico da Tijuca西坡，涉及Quitite和Papagaio河流域。
Natural disasters are one of the world's greatest socioeconomic problems and one of the most notable of which is that of mass movements, which are natural phenomena that change the relief and cause great damage to mankind. Mass movements can be classified by: type of material involved, velocity and mechanism of movement, type of deformation, geometry of the displaced mass and water content. Among them, the shallow landslides stand out. These movements are triggered during intense rainfall, frequently in the summer. Shallow landslides transform into debris flow mainly due to water infiltration. They reach long distances, velocity and high transport capacity, including large boulders. It is essential not only to predict shallow translational landslides but also to predict debris flow occurrence and runout as a secondary effect. The aim of this study is to develop a methodology which combines a model to predict landslides with another one that determines debris flows pathways and depositions. The study area is located in the west slope of Macico da Tijuca, involving the Quitite and Papagaio river basins, in the Jacarepagua neighbourhood of Rio de Janeiro, Brazil.