Estimation of Landslide Velocity and Surge in a Reservoir Area
After long-term natural forces,most slopes gradually tend to stabilize.But when the hydrogeological environment changes,stable slopes may also become unstable.Taking a reservoir as an example,after normal water storage and operation,the saturated rock and soil on the reservoir bank slope soften;When the water level of the reservoir drops suddenly,some pore water in the rock and soil inside the slope cannot be discharged in time,resulting in infiltration.Both situations increase the possibility of instability and damage to the reservoir bank.If the landslide formed after instability and damage rushes into the reservoir area,it will have a serious impact on the safety of the reservoir dam.Calculate the sliding speed and surge height caused by the landslide body rushing into the reservoir area,and evaluate its impact on the dam.
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