Content

Increasing air temperatures and intense precipitation affect slope stability not only in high mountain regions, but also in lower-lying areas without permafrost. In permafrost regions, the occurrence of rockfall and rockslides as a result of climate change has been well studied theoretically and experimentally. In contrast, the effects of climate change on the occurrence of rockfalls in non-permafrost areas are very poorly understood. In addition, many rock walls are highly susceptible to collapse and rockfall due to freezing and thawing activity, threatening settlements and infrastructures. In this project, we focus on the effects of climate change on freeze-thaw cycles as long-term factors influencing the occurrence of rockfall and rockslides in regions without permafrost. We will apply a multi-method approach including experimental field measurements as well as observation and monitoring of rock conditions. These data will form the basis for numerical modelling and numerical simulations using the finite element method to determine the temperature changes during the freeze-thaw cycles. The project results will form the basis for the development of a methodology to manage the risk of rockfall and to identify mitigation and early warning measures against rockfall. 

Work packages:

• WP1: Geological, geomorphological and geotechnical investigations of pilot areas
• WP2: Effects of climate change
• WP3: Thermo-mechanical numerical simulations
• WP4: Analyses of the occurrence of rockfall and freeze-thaw cycles
• WP5: Dissemination of project results
• WP6: Project management and reporting

Project partners:

• Geological Survey of Slovenia (lead partner)
•  University of Ljubljana, Faculty of Civil and Geodetic Engineering
•  University of Ljubljana, Biotechnical Faculty