Marko Pejić

The Analysis of Landslide Dynamics Based on Automated GNSS Monitoring—A Case Study

In the past decade, there has been a gradual introduction of systematic monitoring on the largest landslides in Serbia by establishing a network of monitoring facilities. Umka landslide is complex active landslide whose activity intensifies in the periods of saturation by precipitation as well as sudden changes in the water levels of the Sava river. Course, direction and speed of displacement have been analysed based on automated GNSS monitoring results completed in the more than three years. Based on the results, Umka landslide is classified as complex, active, slow to very slow moving landslide.

Study of Slow Moving Landslide Umka Near Belgrade, Serbia (IPL-181)Open image in new window

The IPL project No 181 titled “Study of slow moving landslide Umka near Belgrade” started in November 2012. The study area is located on the right bank of Sava River, 25 km south west of Belgrade, Serbia. The basic objective of the Project was to enable the analysis, correlation and synthesis of data obtained from various phases of investigation of Umka landslide after 35 years of research. Apart from this, the analysis of data from monitoring conducted during certain phases of research was compared with data from automated GNSS monitoring over the last six years, although during numerous investigations various research methods were used for research and monitoring. The project was focused on: analysis of previous detail site investigations and field instrumentation from 1990–2005, analysis of aerial photos and orthophoto images from 1957 to 2010, analysis of automated GNSS monitoring results from 2010 to end of the Project and analysis of precipitation and levels of the Sava River. Project beneficiaries are local community and local and regional authorities. In this paper we will present results of the proposed project targets performed by Project participants.