Using Motion Sensor for Landslide Monitoring A Community Scale Landslide Monitoring Project

Owing to plate collision effect, there is about 70% area of Taiwan covered with mountain. Thus landslide hazard is an important issue because typhoon and earthquake attacks Taiwan every year. Development of slope land in recent years is rapid thus slope land community is more common than before. Landslide hazard in community scale is challenge task since more and more people live in this slope land area. A community with dip slope was selected in this project to perform landslide displacement monitoring. Numerical analysis for sensor alignment location was executed to help decision. Two triaxial acceleration sensors were mounted to the ground surface to calculate tilt of ground surface. Thus the displacement can be derived base on slip surface assumption. Small displacement was found during a typhoon event in July, 2013.