현장 굴착 실험을 통한 사면붕괴 거동 연구
A Study on behavior of Slope Failure Using Field Excavation Experiment
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초록
Recently, the occurrence of landslides has been increasing over the years due to the extreme weather event. Developments of landslides monitoring technology that reduce damage caused by landslide are urgently needed. Therefore, in this study, a strain ratio sensor was developed to predict the ground behavior during the slope failure, and the change in surface ground displacement was observed as slope failed on the field model experiment. As a result, in the slope failure, the ground displacement process increases the risk of collapse as the inverse displacement approaches zero. It is closely related to the prediction of precursor. In all cases, increase in displacement and reverse speed of inverse displacement with time was observed during the slope failure, and it is very important event for monitoring collapse phenomenon of risky slopes. In the future, it can be used as disaster prevention technology to contribute in reduction of landslide damage and activation of measurement industry.
Abstract
Recently, the occurrence of landslides has been increasing over the years due to the extreme weather event. Developments of landslides monitoring technology that reduce damage caused by landslide are urgently needed. Therefore, in this study, a strain ratio sensor was developed to predict the ground behavior during the slope failure, and the change in surface ground displacement was observed as slope failed on the field model experiment. As a result, in the slope failure, the ground displacement process increases the risk of collapse as the inverse displacement approaches zero. It is closely related to the prediction of precursor. In all cases, increase in displacement and reverse speed of inverse displacement with time was observed during the slope failure, and it is very important event for monitoring collapse phenomenon of risky slopes. In the future, it can be used as disaster prevention technology to contribute in reduction of landslide damage and activation of measurement industry.
참고문헌 (7)
- Development of slope failure forecasting and warning system, "Kim, Y. S.", Research Institute, ~ (2015)
- A Study on integrated management for hazards of landslide, "Korea Forest Service", ~ (2013)
- Development of an integrated early detection system of landslides based on a real-time monitoring, "Korea Institute of Geoscience and Mineral Resources", Research Institute, ~ (2014)
- Technology Development of Landslide Rapid Detection based on a Real-time Monitoring, "Korea Institute of Geoscience and Mineral Resources", Research Institute, ~ (2015)
- 송영화, "실시간 산사태 모니터링 및 탐지기술에 대한 비즈니스 생태계 기반 기술사업화 전략 연구", 지질공학, 26(2), pp.223~233 (2016), 대한지질공학회
- Tamate, S., "A Large Scale Model Test on Detection of Potential Risk of Slope Failure by Monitoring of Shear Strain in Shallow Section", Journal of Japan Society of Civil Engineers, 69(3), pp.326~336 (2013)
- Voight, B., "A method for prediction of volcanic eruption", Nature, 332(6160), pp.125~130 (1988)