Yui Landslide Control Project

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Monitoring of Landslides

In Yui area, various devices have been installed to monitor the occurrence of landslides. There are two types in monitoring devices, one is devices to monitor ground surface movements (indicated in red arrows) and another is devices to monitor underground movements (indicated in blue arrows). In addition, precipitation, and underground water levels (indicated in black arrows) are also monitored, because natural conditions greatly affect the occurrence of landslides.

Some of the devices are used as an online remote monitoring system around the clock, and an inserted type borehole tiltmeter is used to periodically monitor the occurrence of landslides in the field.

Layout of online observation instruments