CURRENT STATUS AND NEW PROGRESS ON SLOPE DEFORMATION MONITORING TECHNOLOGIES

Landslide is a critical geological disaster that has drawn general concern of the society. Earthquakes, rainfalls, reservoir operations and construction activities frequently induce large movements of high slopes and even trigger landslides or debris flows, which poses a significant threat to human lives and properties. In recent years, the monitoring technologies of slope deformation have been rapidly developed and played an increasingly important role in ensuring slope stability, verifying the effect of reinforcing measures, enhancing early warning of landslides, et al. This paper briefly introduces the conventional slope deformation monitoring technologies and their shortcomings. The latest development and applications of slope deformation monitoring technologies at home and abroad in the past few decades are presented in detail, followed by a comparison of the features of these technologies, especially the distributed fiber optic sensing technology. Finally, some research suggestions are proposed for future development of slope deformation monitoring technologies.