Integration of LIDAR data and geological maps for landslide hazard assessment in the Three Gorges Reservoir area, China

The water storage and millions of immigrants work have a great impact on engineering geological condition which may cause slope instability in the Three Gorges Reservoir area, China. This paper presents regional assessment of landslide hazard from Zigui to Badong based on Light Detection and Ranging (LIDAR) data in combination with geological maps and landslides information of this area. Four essential parameters, including engineering rocks, slope, slope structure and water impact, are extracted from this data. The informative model is employed to create landslide hazard map. The result shows that informative model successfully identified the stable regions as well as instable reservoir banks. Reservoir water and engineering rocks are principle control on slope stability in this area. We also divided the study area into fourteen sections according to the landslide hazard map.

[1]  Jianguo Liu,et al.  Landslide hazard assessment in the Three Gorges area, China, using ASTER imagery: Wushan–Badong , 2007 .

[2]  H. Lan,et al.  Landslide hazard spatial analysis and prediction using GIS in the Xiaojiang watershed, Yunnan, China , 2004 .

[3]  L. Tham,et al.  Landslide susceptibility mapping based on Support Vector Machine: A case study on natural slopes of Hong Kong, China , 2008 .

[4]  Yin Yueping.  ENGINEERING GEOLOGICAL CHARACTERISTICS OF PURPLISH-RED MUDSTONE OF MIDDLE TERTIARY FORMATION AT THE THREE GORGES RESERVOIR , 2004 .

[5]  Huang Xue-bin.  MODEL TEST STUDY ON LANDSLIDE UNDER RAINFALL AND RESERVOIR WATER FLUCTUATION , 2005 .

[6]  Ling Shi,et al.  Zonation of the landslide hazards in the forereservoir region of the Three Gorges Project on the Yangtze River , 2001 .

[7]  Manoj K. Arora,et al.  A comparative study of conventional, ANN black box, fuzzy and combined neural and fuzzy weighting procedures for landslide susceptibility zonation in Darjeeling Himalayas , 2006 .

[8]  Jordi Corominas,et al.  A review of assessing landslide frequency for hazard zoning purposes , 2008 .

[9]  E. Yesilnacar,et al.  Landslide susceptibility mapping : A comparison of logistic regression and neural networks methods in a medium scale study, Hendek Region (Turkey) , 2005 .

[10]  Li Guangrun.  DISCUSSION ON CLASSIFICATION OF LANDSLIDES , 2002 .

[11]  Philippa J. Mason,et al.  Landslide hazard assessment in the Three Gorges area of the Yangtze river using ASTER imagery: Zigui–Badong , 2004 .

[12]  Paul M. Mather,et al.  Computer Processing of Remotely-Sensed Images: An Introduction , 1988 .