Rainfall Induced Landslide Triggering Threshold Level Assessment by Laboratory Scale Down Model using Sensor Nodes

Electronics and Communication Engineering

Rainfall triggered landslide disaster frequently happens in the slopes during substantial precipitation. Water infiltration arises in the slopes due to rainfall, which changes the moisture content of the soil slope gradient and decreases its stability and landslide occurs. Landslide causes damages in the environments, prediction and forecasting is essential to reduce the property losses and to avoid loss in human lives. This paper proposes the laboratory experimental method for measurement of change in moisture content to identify the triggering condition of slope failure using different types of sensors. The experiment is used to determine the instigation process of rainfall triggered landslide. The study showed that, the slope failures were triggered by gradual increase of the soil moisture content. This analysis would support to develop Wireless Sensor Network (WSN) for continuous monitoring of slope to predict rainfall induced landslide before it occurs.

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