EVALUATION OF GEOHAZARD SUSCEPTIBILITY BASED ON INFORMATION METHOD: A Case Study of Wushan County in Chongqing Municipality

WEN Jin-mei; YANG Long; GOU Jing; LI De-long; WU Tao

doi:10.13686/j.cnki.dzyzy.2021.02.011

2021 Vol. 30, No. 2

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Article navigation > Geology and Resources > 2021 > 30(2): 193-198, 192

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WEN Jin-mei, YANG Long, GOU Jing, LI De-long, WU Tao. EVALUATION OF GEOHAZARD SUSCEPTIBILITY BASED ON INFORMATION METHOD: A Case Study of Wushan County in Chongqing Municipality[J]. Geology and Resources, 2021, 30(2): 193-198, 192. doi: 10.13686/j.cnki.dzyzy.2021.02.011

Citation:

WEN Jin-mei, YANG Long, GOU Jing, LI De-long, WU Tao. EVALUATION OF GEOHAZARD SUSCEPTIBILITY BASED ON INFORMATION METHOD: A Case Study of Wushan County in Chongqing Municipality[J]. Geology and Resources, 2021, 30(2): 193-198, 192. doi: 10.13686/j.cnki.dzyzy.2021.02.011

EVALUATION OF GEOHAZARD SUSCEPTIBILITY BASED ON INFORMATION METHOD: A Case Study of Wushan County in Chongqing Municipality

1.
No. 208 Hydrogeology and Engineering Geology Team of Chongqing Bureau of Geology and Minerals Exploration/Chongqing Institute of Geological Hazard Prevention Engineering Exploration and Design, Chongqing 400700, China
2.
Nanjiang Hydrogeology and Engineering Geology Team, Chongqing Bureau of Geology and Minerals Exploration, Chongqing 401120, China

Received Date: 08 April 2020

Revised Date: 13 December 2020

Publish Date: 28 April 2021

Abstract

Abstract

Taking the Wushan County in Chongqing Municipality as object, the paper analyzes the characteristics of geohazards and influencing factors which include the topographic conditions, engineering geological rock formation, geological structure, slope structure, water level of the Three Gorges Dam and other human engineering activities. Based on information method, the ArcGIS software is used to extract and calculate the spatial information of each factor to get their contribution values to geohazards, and divide the susceptibility into ultra-high-risk, high-risk, middle-risk and low-risk areas. The occurrences of geohazards in different areas are counted respectively. It is found that the higher the susceptibility is, the more the geological disaster points there are, which is basically consistent with the actual situation, with good fitting degree. The result can be used to evaluate the susceptibility of geohazards in the same type of areas.
- geohazard /
- geological environment /
- susceptibility /
- information method /
- Chongqing Municipality

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References

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