洞坪水库大沟湾滑坡体变形机制

项伟; 江洎洧; 唐辉明; 崔德山; 黄玲

Volume 34 Issue 5

Sep. 2009

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Article Navigation > Earth Science > 2009 > 34(5): 855-860

XIANG Wei, JIANG Ji-wei, TANG Hui-ming, CUI De-shan, HUANG Ling, 2009. Deformation Mechanism of Dagouwan Landslide in Dongping Reservoir. Earth Science, 34(5): 855-860.

Citation:

XIANG Wei, JIANG Ji-wei, TANG Hui-ming, CUI De-shan, HUANG Ling, 2009. Deformation Mechanism of Dagouwan Landslide in Dongping Reservoir. Earth Science, 34(5): 855-860.

XIANG Wei, JIANG Ji-wei, TANG Hui-ming, CUI De-shan, HUANG Ling, 2009. Deformation Mechanism of Dagouwan Landslide in Dongping Reservoir. Earth Science, 34(5): 855-860.

Citation:

XIANG Wei, JIANG Ji-wei, TANG Hui-ming, CUI De-shan, HUANG Ling, 2009. Deformation Mechanism of Dagouwan Landslide in Dongping Reservoir. Earth Science, 34(5): 855-860.

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Deformation Mechanism of Dagouwan Landslide in Dongping Reservoir

Faculty of Engineering, China University of Geosciences, Wuhan 430074, China

Received Date: 2008-12-25
Publish Date: 2009-09-25

Abstract

Abstract

Based on engineering survey and experiments, slide mass structure and the mechanical parameters of Dagouwan landslide were obtained.FLAC3D was employed to analyze the stability and the deformation mechanism of Dagouwan landslide at different working conditions and water levels.The results of analysis show that: when the water level rose to 452 m, there showed a continuous crack at the back of the landslide from one side of gully to another, and the shear outlet of the landslide was located in the thick deposits of the slope at 580 m, but the whole slope still showed stability; when the water level rose to 488 m, another independent landslide formed from the toe of the landslide to 570 m.Interactions between two landslides caused the failure of the whole slope.The phenomenon had been confirmed during the two field explorations.The failure reasons of the landslide can be concluded as the loose structure of the landslide, high frequency of showers and the fluctuation of the water level in the reservoir, which finally led to the form of this complex retrogressive-progressive landslide.
- Dongping reservoir,
- Dagouwan landslide,
- FDM method,
- deformation mechanism,
- complex landslide

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References(14)

References

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