Development of low-cost instrumentation for landslide early detection model

Abstract

This research is intended to make early detection system. A landslide-prone land contour model has been constructed and equipped with an instrumentation system for early monitoring and mitigation which includes: rainfall monitoring, soil movement, moisture and slope monitoring. The model of landslide developed is a model of landslide triggered by rainfall that moves soil mass, so accurate rainfall measurement is necessary. A portable tipping bucket rain gauge system has been manufactured, tested and compared to BMKG tipping bucket rain gauge for two months with excellent results. Unpredictable ground movements will accurately affect the sensor measurement results. The test results show the response of the ground movement sensor is very important to issue the condition. There are 3 conditions when the system shows the cues, namely: ALERT (movement> 2cm); DANGER (movement> 4cm) with alarm buzzer alarm indicator; IMMEDIATELY EVACUATION that is when the land has hit a hedge fence accompanied by alarm sirens sound indicator.