Affiliation:
1. China University of Geosciences Wuhan
2. East China University of Technology
3. Nanchang Institute of Science and Technology
Abstract
Abstract
This paper describes the Baibao landslide that occurred in October 2017 within a Jurassic formation in Guojiaba town, Zigui County, Yichang city, China. The factors leading to this landslide include complex geological conditions, slide-prone strata, and fluctuating water level of the Three Gorges Reservoir. Borehole and field investigations indicate that the landslide can be divided into two parts: a medium to deep rock landslide and a partial soil sliding landslide. A comprehensive analysis of the monitoring data, including GPS, precipitation, inclinometer, and water reservoir level measurements, indicates that the Baibao landslide was caused mostly by buoyancy, as well as seepage. Rising reservoir water levels and concentrated pore water pressure at the leading edge of the slope softened the sliding mass. The reduced anti-sliding force allowed the landslide to occur and ultimately drag the rear slope. This study illustrates the landslide deformation mechanism and provides a useful reference for engineering projects in similar regions.
Publisher
Research Square Platform LLC
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