单体库岸滑坡及其次生涌浪灾害风险分析

王芳; 殷坤龙; 桂蕾; 陈丽霞

doi:10.3799/dqkx.2018.910

Volume 43 Issue 3

Mar. 2018

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Wang Fang, Yin Kunlong, Gui Lei, Chen Lixia, 2018. Risk Analysis on Individual Reservoir Bank Landslide and Its Generated Wave. Earth Science, 43(3): 899-909. doi: 10.3799/dqkx.2018.910

Citation:

Wang Fang, Yin Kunlong, Gui Lei, Chen Lixia, 2018. Risk Analysis on Individual Reservoir Bank Landslide and Its Generated Wave. Earth Science, 43(3): 899-909. doi: 10.3799/dqkx.2018.910

Wang Fang, Yin Kunlong, Gui Lei, Chen Lixia, 2018. Risk Analysis on Individual Reservoir Bank Landslide and Its Generated Wave. Earth Science, 43(3): 899-909. doi: 10.3799/dqkx.2018.910

Citation:

Wang Fang, Yin Kunlong, Gui Lei, Chen Lixia, 2018. Risk Analysis on Individual Reservoir Bank Landslide and Its Generated Wave. Earth Science, 43(3): 899-909. doi: 10.3799/dqkx.2018.910

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Risk Analysis on Individual Reservoir Bank Landslide and Its Generated Wave

doi: 10.3799/dqkx.2018.910

Wang Fang^1
,,
Yin Kunlong^{1
,
,},
Gui Lei¹,
Chen Lixia²

1.
Faculty of Engineering, China University of Geosciences, Wuhan 430074, China
2.
Institute of Geophysics & Geomatics, China University of Geosciences, Wuhan 430074, China

Received Date: 2017-12-20
Publish Date: 2018-03-15

Abstract

Abstract

The reservoir landslide and its generated surge are major disasters in the operation of reservoir water and their influence degree on life and property can be reasonably determined and evaluated.by risk analysis, which shall provide theoretical basis and technical support for economical and effective emergency measures of disaster reduction. Tangjiao No.1 landslide, in Wanzhou District, Three Gorges Reservoir, was taken as an example in this study. Firstly, the method of hazard analysis on individual landslide by considering the spatial difference and different water levels and rainfall scenarios was discussed. Secondly, the impact range of landslide generated wave was determined. Thirdly, the methods of vulnerability analysis on the elements at risk in the impact range of landslide and its generated wave were studied. Finally, under the most dangerous scenario, economic risk map of Tangshan No. 1 landslide and its generated wave and population risk map of Tangshan No. 1 landslide were obtained. The results show that the most dangerous scenario for Tangshan No. 1 landslide was water level decreasing from 175 m to 145 m with a 3-day-rain of 100 mm daily rainfall. Under this scenario, the total economic risk of Tangshan No. 1 landslide and its generated wave was 22.39 million RMB; the total indoor population risk of the landslide was 0.55 person. The results of this study could be used in guiding reservoir bank landslide disaster prevention and mitigation.
- landslides,
- landslide generated wave,
- risk analysis,
- reservoir bank,
- Three Gorges Reservoir

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References(43)

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