IOT Monitoring of Debris Flow for Rigid Barrier

There are many slopes in Hong Kong with loose fill and alluvium on the top. Under heavy rain, failure of slope and debris flow is commonly found. There are various processes and features associated with debris flow for which the engineers need to consider in the design. In the previous study by the authors, laboratory and field tests with different materials and sizes are used, and distinct element (DEM) analyses have been carried out for modelling the flow and segregation process. Following the previous laboratory and field tests, the debris flow process and the impact on a rigid barrier are monitored by the use of IOT technique in the current study. Several IOT sensors are installed as the pilot test which appear to be the pioneer work. The various design and installation details of an IOT monitoring system for a rigid debris flow barrier in Hong Kong is described in this paper.