关键词: 弃渣场, 边坡监测, 柔性测斜仪, OTDR

Abstract: OTDR technology and GBMS flexible inclinometer are used to construct an automatic monitoring system for the dumping site slope. The system consists of three subsystems: (1) OTDR surface deformation alarm subsystem, covers most areas of the dumping site slope with cobweb optical fiber layout scheme, achieving the effect of overall monitoring and alarm for surface deformation of slope; (2) deep displacement monitoring subsystem, captures the deformation signs of the deep slope body in time through a GBMS flexible inclinometer, to obtain the change amount of deep displacement; (3) underground water level and rainfall monitoring subsystem, uses the piezometers and rain gauge to measure the change trend of the underground water level of the slope body and rainfall, and monitor the triggering factor of slope instability. The three subsystems cooperate with each other and finally work together to form a set of economic and scientific slope monitoring system for dumping site slope.

Key words: dumping site, slope monitoring, flexible inclinometer, OTDR