Geomechanics Study on the Influence of Water Level Variation on Landslide Safety in Three Gorges Reservoir Region

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Abstract:

Up concave and linear slices are two basic geometric shapes of the landslides. In this paper, the unsaturated seepage fields of landslides are described by Richards’s equation and the safety of landslides are calculated by the Morgenstern-Prince method. The Influences of water level variation on landslide safety in Three Gorges reservoir region are discussed through two landslides. It indicates that,the impact of buoyancy is significant and related closely to water level change, and the most dangerous condition is stable high water level. To the slide which slice is line, the impact of permeation is significant and related closely to water change too, and the most dangerous condition is at the beginning of reaching the low water level.

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181-184

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April 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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