An Optical Fiber Early Warning System for Monitoring Mass Movements and for Assessing the Effect of the Triggering Factors

2019-10-03
Arslan Kelam, Arzu
Koçkar, Mustafa Kerem
Akgün, Haluk
The purpose of this research is to generate an early warning system for large mass movements that utilize optical fibers. Optical fibers are preferred due to their suitability in field conditions as well as their continuous and fast data transfer characteristics. The optical fiber system is composed of optical fiber cables and a device called BOTDA. This system measures mass movement in terms of relative strain that changes due to the relocation of the cable. In addition, the system can monitor the effects of the triggering factors that cause mass movements (i.e., hydrological, hydrogeological, seismic effects). The system was deployed in a landslide-prone region in Kocaeli, Turkey and measured the change in strain. This study revealed that the optical fiber system is reliable and well-suited for monitoring of deformation related engineering applications such as mass movements. The system can also adapt successfully to be used as an early warning system with the definition of site-specific threshold strain values and gives an alarm.
Citation Formats
A. Arslan Kelam, M. K. Koçkar, and H. Akgün, “An Optical Fiber Early Warning System for Monitoring Mass Movements and for Assessing the Effect of the Triggering Factors,” Pamukkale Üniversitesi (PAÜ), Denizli, Türkiye, 2019, p. 501, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/74624.