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Proceedings Paper

The study in deformation and destruction mechanism of Qianjiangping landslide in Three Gorges Reservoir area
Author(s): Rihong Yang; Zhihua Wang; Jinzhong Yang; Zuguo Wang
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Paper Abstract

The advanced digital image processing technique was used in the high resolution remote sensing images processing, aero photos before landslide happened and the Quick Bird image after landslide were processed. The technique of digital landslide, 3D visualization and man-machine interactive interpretation were used to analyze the geomorphologic features of remote sensing images. From the characteristic of the deposit, it is deduced that the paleo-landslide was a deep and consequent rock landslide with large-scale deposit, the entire deposit of "7.13" landslide is similar to the paleo-landslide, and the displaced volume is 15×106m3. Based on the geology theory, this paper synthetically compared the effect of landslide between the rainfall and the water level rising. It is concluded that the main inducing factors is the first stage storage of the Three Gorges and the continuous rainfall is triggering factor. Synthetically analyzing the process of slide and the characteristic of deposit, it is deduced that the middle and front part of Qianjiangping landslide is push-type sliding while the back part is drag sliding, the pattern of deformation and destruction is front verge leading sliding-drag.

Paper Details

Date Published: 24 November 2008
PDF: 7 pages
Proc. SPIE 7123, Remote Sensing of the Environment: 16th National Symposium on Remote Sensing of China, 712315 (24 November 2008); doi: 10.1117/12.816203
Show Author Affiliations
Rihong Yang, China Aero Geophysical Survey and Remote Sensing Ctr. for Land and Resources (China)
Zhihua Wang, China Aero Geophysical Survey and Remote Sensing Ctr. for Land and Resources (China)
Jinzhong Yang, China Aero Geophysical Survey and Remote Sensing Ctr. for Land and Resources (China)
Zuguo Wang, China Water Resources Beifang Investigation Design and Research Co., Ltd. (China)


Published in SPIE Proceedings Vol. 7123:
Remote Sensing of the Environment: 16th National Symposium on Remote Sensing of China
Qingxi Tong, Editor(s)

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