Soil Permeability Tank Testing on Landslide Early Warning System

Landslides cause harm both to society and the environment. Landslides usually occur during the rainy season with high rainfall and damaged soil structure. An Early Warning System (EWS) has been adopted to mitigate landslides. However, few monitoring systems include complete sensor integration related to the causes of landslides and an independent supply of information. Therefore, the development involves complete information on all these characteristics is important. To learn about landslides, it is always suggested to prepare a landslide model in the laboratory before executing it in a real environment. This study aims to to obtain a correlation of all the sensors for parameters induced landslide i.e. groundwater level, soil moisture, pore water pressure, rainfall, and ground movement with a permeability tank experiment. The sensors were set and placed in the permeability tank with a debit of 21.27 m3/liter water. The silica sand was used and poured into a permeability tank with a set of slope models. The warning alarm was set to 20 mm for the ground movement sensor. The groundwater flow was also observed from the tank pipes. The results show that all sensors work well and correlate with each other to read the value. However, the ground movement detects no movement because the value of the sensor shows 0 mm until the end of the experiment. The silica sand has a narrow grain, causing water to flow fast. Even so, the sensors work well and can be deployed for landslide prevention.