Assessment of the Applicability of a Net-Type Check Dam Equipped with an Early Warning Sensor System

초록

This study was conducted to evaluate the practical applicability of an early warning sensor system for net-type check dams. A strain gauge was installed on the wire ropes of the net structure at the Umyeonsan check dam site, enabling real-time measurement of micro-displacements caused by debris-flow impacts. A monitoring system was established to transmit the measured data to a management server through an IoT-based communication network. Tensile tests were performed to verify the accuracy and reliability of the sensor, and field application results showed that even minor impacts were clearly detected, demonstrating the feasibility of real-time impact load monitoring. Based on the measured displacement and load data, the applicability of a multi-level warning system was examined, indicating that the proposed approach can enhance integrated response capabilities compared to conventional systems where protective structures and warning functions operate separately. This study provides fundamental data for introducing an early warning function to net-type check dams and is expected to contribute to improving initial response to debris-flow events.

키워드