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Discussion on Spatial Prediction of Perilous Rock in the Three Gorges Reservoir Area of Yangtze River, China

详细信息

责任者：Yang Zongji (Key Laboratory of Mountain Hazards and Surface Process ; Institute of Mountain Hazards and Environment ; Chinese Academy of Sciences and Ministry of Water Conservancy ; Chengdu 610041 ; China) ; Qiao Jianping
刊名：Geological Bulletin of China
出版年：2009
卷期：28(8)
关键词：危岩体 ; unstable rock ; 长江三峡 ; Yangtze River Valley
页码：p.1098-1102
图表：1 illus., 2 tables, 10 refs.
分类号：1800
issnNo：ISSN1671-2552
isbnNo：CN11-4648/P

摘要

This paper has set up a quantitative index system based on information entropy method, subjective weight of all indices are combined with data from 37 perilous rocks in Wanzhou County, Three Gorges, and a qualitative perilous rock hazard degree assessment model was established. Then this model was used in evaluating the hazard degree of the perilous rocks in Wanzhou County, danger degree result of them are obtained, and verified through field investigation, it’s indicated that accuracy reaches 86.5%. Consequently this model can be implemented as a new method for risk evaluation or spatial prediction of perilous rocks, and thus provide a basis for early warning.

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