A preventive works against landslides is focused on a counterweight fill works that weighs down landslide ends to ensure long-term stability of a slope. A drainage well works is implemented as a groundwater removal works in order to restrain the rise of a groundwater level. In addition, the slope in landslide soil mass disrupted is shaped while a head main scarp is improved by cutting.
On the other hand, monitoring cameras are installed at the occurrence of a landslide to watch landslides on a continuous and real time basis, while an automatic monitoring system is established that can identify landslide variations on a ground surface and a slipping surface.
House completely destroyed and extrusion phenomenon of ground surface
Status of landslide ends
Collapsed as cracked on the surface of a paddy field
Subsidence zone observed at the head