From the Area to the Point-Study on the Key Technology of 3D Geological Hazard Modeling in Three Gorges Reservoir Area

Junqi Liu; Xuebin Huang; Chonglong Wu; Wenming Cheng; Wei Xiang; He Xia

doi:10.1007/s12583-012-0246-5

Volume 23 Issue 2

Apr 2012

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Journal of Earth Science > 2012 > 23(2): 199-206.

Junqi Liu, Xuebin Huang, Chonglong Wu, Wenming Cheng, Wei Xiang, He Xia. From the Area to the Point-Study on the Key Technology of 3D Geological Hazard Modeling in Three Gorges Reservoir Area. Journal of Earth Science, 2012, 23(2): 199-206. doi: 10.1007/s12583-012-0246-5

Citation:

Junqi Liu, Xuebin Huang, Chonglong Wu, Wenming Cheng, Wei Xiang, He Xia. From the Area to the Point-Study on the Key Technology of 3D Geological Hazard Modeling in Three Gorges Reservoir Area. Journal of Earth Science, 2012, 23(2): 199-206. doi: 10.1007/s12583-012-0246-5

Citation:

Junqi Liu, Xuebin Huang, Chonglong Wu, Wenming Cheng, Wei Xiang, He Xia. From the Area to the Point-Study on the Key Technology of 3D Geological Hazard Modeling in Three Gorges Reservoir Area. Journal of Earth Science, 2012, 23(2): 199-206. doi: 10.1007/s12583-012-0246-5

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From the Area to the Point-Study on the Key Technology of 3D Geological Hazard Modeling in Three Gorges Reservoir Area

doi: 10.1007/s12583-012-0246-5

Junqi Liu^{1
,
,},
Xuebin Huang²,
Chonglong Wu^{1, 3},
Wenming Cheng²,
Wei Xiang^{1, 4},
He Xia³

1.
Three Gorges Research Center for Geo-hazard, Ministry of Education, China University of Geosciences, Wuhan, 430074, China
2.
The Headquarters of Prevention and Control for Geo-hazard in the Three Gorges Reservoir Area, Yichang, 443000, China
3.
Faculty of Computer, China University of Geosciences, Wuhan, 430074, China
4.
Faculty of Engineering, China University of Geosciences, Wuhan, 430074, China

More Information

Corresponding author: Junqi Liu, liujqg@126.com
Received Date: 09 Oct 2011
Accepted Date: 21 Dec 2011
Publish Date: 01 Apr 2012

Abstract

Abstract

Taking hundreds of pieces of hazardous geological maps (1: 10 000) of Three Gorges reservoir area (3GR) as background, we establish regional three-dimensional (3D) geo-hazard model using DEM (digital elevation model) superposed surface images and geo-hazards elements. Based on landslides and other geo-hazard survey data, using improved B-REP (boundary representation) entity data structure (two-body 3D data structure), we set up 3D solid models for each hazardous bodies in each hazardous geological maps. Then we integrate the two types of 3D models with different scales from area to point, which are the regional geo-hazard 3D model and the solid models of each disaster body, in order to provide a visual processing and analysis platform for danger partition, stability evaluation, disaster prevention and control, early warning and command.

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References(23)

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From the Area to the Point-Study on the Key Technology of 3D Geological Hazard Modeling in Three Gorges Reservoir Area

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