CIVIL DEFENCE OF ABRUZZO- ITALY
Monitoring and early warning system for the landslide in Castelnuovo di Campli (Teramo)
Summary Loca on: Castelnuovo di Campli (Teramo), Italy Conclusion: 2017 Focus: Geological and hydrogeological risk Challenges: Ÿ Landslides occurred in the area Ÿ Establishing the monitoring In February 2017, a landslide occurred in the Municipality of and early warning system for the landslide Castelnuovo di Campli, in the province of Teramo, with caused the collapse along the stream Siccagno, with a front of CAE solu ons: approximately 80 meters. That was a sudden sinking resul ng Ÿ full-scale and modern from the rainfall episodes occurred a er the mel ng of the "turnkey" monitoring and early warning system heavy snowfalls. As a result of this landslide movement, a Ÿ self-configuring wireless stretch of fence of a commercial area collapsed, as well as a networks thanks to the WSN medium-voltage cabinet of the na onal electric service (Enel) technology (Wireless Sensor that was approximately 6 meters high, two garages and a Network) stretch of municipal street of approximately 25 meters. This Ÿ mul point extensometers, drama c situa on occurred just a few meters from some clinometers, a thermo- houses. pluviometric Mhaster sta on Ÿ duplex communica on system (GPRS/UMTS and UHF band radio) FEATURES COMPOSITION
A er performing a feasibility study, CAE While monitoring soil movements, provided the Region of Abruzzo with a the system is also equipped with a full-scale and modern "turnkey" thermo-pluviometric Mhaster sta on monitoring and early warning system that allows us to associate the that uses self-configuring wireless evolu on of the instability to the networks thanks to the WSN rainfalls on site; at this purpose, we technology (Wireless Sensor Network). can dis nguish among 3 phases: The collapse of Enel cabinet caused a Ÿ Normality: no intense rainfalls or blackout that le all the area's buildings landslide movements have been without electricity; in order to face any detected; other similar situa on and avoid any Ÿ possible malfunc on, every element in Pre-alarm: rainfalls exceed a the supplied system is self-func oning determined threshold of intensity, from an energe c point of view: the use therefore the number safety of solar panels and buffer ba eries measures are increased and the allows the system to self-func on up to headquarters can send a warning 30 days and more. no fica on; Ÿ This system guarantee the maximum Alarm: the movement of the level of reliability in terms of: geological sensors (significant inclina ons) involve the necessity Ÿ Availability of data: this will allow the to send alert no fica ons via vocal operators to intervene in an synthesis message, SMS and FAX. extremely short me, in case of anomalies; All this is possible thanks to automa c diagnos c func onali es Ÿ Real- me warning: when the of the system, as well as to its duplex condi ons of the system change and communica on system the pluviometric and geotechnical (GPRS/UMTS modem and UHF band alert thresholds are exceeded, the radio device connected to remote system communicate via vocal measuring radio network of regional messages, SMS or e-mails, with the monitoring service); this system competent Authority. sends collected data both to the More in detail, in order to monitor the Municipal Opera ve Centre and the micro-movements occurring deeply in Func onal Centre of the Civil the soil, we used mul point Protec on System. In such situa ons, extensometers located in inclined holes the availability of the collected data is along the ridge of the southern essen al; which is why in addi on to mountainside, specifically at 12 and 25 tradi onal hardware and so ware meters in depth. As far as the surface devices, CAE provides the competent movements, we used clinometers that Authori es with a valid decision measure the inclina on varia ons of the support, thanks to a data structures to which they are fixed; in visualisa on service that uses a WEB detail, they allow us to monitor the pla orm which is 24h mobile- inclina on varia ons both on a single accessible from an internet browser. axis and on two planes perpendicular to the surface where they are fixed.