|其他题名||Analysis and modeling of slope stability in the Three-Gorges Dam reservoir (China) — The case of Huangtupo landslide|
The water level in the Three Gorges Dam reservoir is expected to change between the elevations of 145 m and 175 m;as a function of the flood control implementation and the intensity of the annual flood. As a matter of fact;the hydraulical and mechanical loadings;related to the water level modifications;will result in alterations in the slope stability conditions. The town of Badong (Hubei);of 20 000 inhabitants;is one of the towns which was submerged by the impoundment of the reservoir. As a consequence;the new town of Badong was constructed on a nearby site which appeared to be partly an unstable site. A part of this site corresponds to an old landslide;the Huangtupo landslide;the base of which had to be submerged by the water of the reservoir. The analysis of the Huangtupo landslide;taking into account various events scenarios;drainage and reinforcement measures and monitoring devices;allows to illustrate the general process implemented all along the reservoir in order to mitigate the landslide hazard.
|关键词||Three Gorges Dam Landslide Modelling|