ABSTRACT
Owing to underground coal mining, the deformation of mountain slope led to excessive displacement of main structures of Hancheng Power Plant that once endangered the plant to be on the verge of shutdown and to a level that emergency evacuation plan had been worked out. This chapter analyzes the mechanism of the landslide in Hancheng City, introduces treatment measures and evaluates the treatment result based on the monitoring data. The experts defined the displacement of the slope as landslide, and since then the slope was called ‘‘Hancheng landslide’’. NWH drew a conclusion through geological investigation and preliminary mechanism analysis that Hancheng landslide is a creep-slide deformable body with multiple slide surfaces. Ground surface displacement in the zone is the result of accumulation of multi-layer slide which is much greater than that of vacant area in front of the mountain and plant area.
