NH6
Landslide Instrumentation and Monitoring

Main Organiser
Alessandro Pasuto
CNR-IRPI and GRJL Geo-Risk Joint Lab, Italy Japan Joint Lab on Hydrogeological Risk
a.pasuto@irpi.cnr.it

Co-Organiser(s)
Haruo Nishimoto
PWRI-Public Work Research Institute and GRJL Geo-Risk Joint Lab, Italy Japan Joint Lab on Hydrogeological Risk)
nisimoto@pwri.go.jp

Brief Description
Slope movement shows great variety not only because of the different types but also from a kinematic and geometric point of view. Each landslide is characterised by its own evolutive story, so that the monitoring method to clarify the landslide condition should be done by fully considering the types of instruments to be installed, the number and location of measurement points, the frequency of sampling etc. Standardisation of the methods and tools of monitoring and the choice of sensors to be used is therefore a difficult task to be achieved.
In order to obtain reliable results, the monitoring system should not only be the result of the sum of various technologies but also be based on a preliminary analysis of the phenomena, and also be derived from adequate reflections on the data. Similarly, a set of sensors placed haphazardly inside and around a landslide body will produce a series of measurements which are not easy to interpret and compare with the other kind of dataset. Therefore it is important to plan a monitoring system correctly, in order to get sufficient and, in particular, reliable data when the alarm for the population, the risk definition, slope modelling and stabilisation can be predicted. Moreover in recent years innovative techniques, such as SAR interferometry, optical fibers, TDR, laser etc. began to be applied in landslide monitoring and warning system. The equipment allowed us to monitor in real time the displacements over wide areas with a detailed spatially extensive informations. The aim of this session is to compare and discuss different experiences in this topic, with special reference to these innovative techniques, in order to achieve a framework as complete as possible of the tools and methods for landslide monitoring even with civil defence purposes.