Loading...
Projects / Programmes source: ARIS

Studying landslide movements from source areas to zone of deposition using a deterministic approach.

Research activity

Code Science Field Subfield
1.06.05  Natural sciences and mathematics  Geology  Geophysics 

Code Science Field
P510  Natural sciences and mathematics  Physical geography, geomorphology, pedology, cartography, climatology 

Code Science Field
1.05  Natural Sciences  Earth and related Environmental sciences 
Keywords
landslides, debris flow, landslide source area, zone of deposition, modelling, hazard assessment, deterministic approach
Evaluation (rules)
source: COBISS
Researchers (22)
no. Code Name and surname Research area Role Period No. of publicationsNo. of publications
1.  29607  PhD Jure Atanackov  Geology  Researcher  2017 - 2020  249 
2.  16309  PhD Miloš Bavec  Geology  Researcher  2017 - 2020  433 
3.  35409  PhD Nejc Bezak  Hydrology  Researcher  2017 - 2020  343 
4.  17253  Zmago Bole    Technical associate  2017 - 2020  207 
5.  19124  PhD Bogomir Celarc  Geology  Researcher  2017 - 2020  325 
6.  37367  Staška Čertalič    Technical associate  2017 - 2020  44 
7.  17244  Marko Hoetzl    Technical associate  2018 - 2020 
8.  32050  PhD Petra Jamšek Rupnik  Geology  Researcher  2017 - 2020  208 
9.  19280  PhD Mitja Janža  Geology  Researcher  2017 - 2020  445 
10.  28456  PhD Mateja Jemec Auflič  Geology  Head  2017 - 2020  270 
11.  28457  PhD Jernej Jež  Geology  Researcher  2017 - 2020  394 
12.  18166  PhD Marko Komac  Geology  Researcher  2017 - 2020  521 
13.  50321  Katja Koren  Geology  Technical associate  2019  270 
14.  30040  PhD Matej Maček  Civil engineering  Researcher  2017 - 2020  437 
15.  17245  Tomislav Matoz    Technical associate  2017 
16.  08245  PhD Matjaž Mikoš  Hydrology  Researcher  2017 - 2020  1,562 
17.  35426  PhD Tina Peternel  Geology  Researcher  2017 - 2020  164 
18.  15392  PhD Dušan Petrovič  Geodesy  Researcher  2017 - 2020  597 
19.  15688  PhD Tomaž Podobnikar  Geodesy  Researcher  2017 - 2019  614 
20.  32689  PhD Jošt Sodnik  Hydrology  Researcher  2017 - 2020  129 
21.  53903  PhD Ela Šegina  Geology  Researcher  2020  90 
22.  37004  Dejan Šram  Geology  Researcher  2017 - 2020  178 
Organisations (2)
no. Code Research organisation City Registration number No. of publicationsNo. of publications
1.  0215  Geological Survey of Slovenia  Ljubljana  5051410000  11,195 
2.  0792  University of Ljubljana, Faculty of Civil and Geodetic Engineering  Ljubljana  1626981  25,898 
Abstract
The proposed research project is aimed at studying landslide movements from their source areas to the zone of deposition using a deterministic approach. Shallow landslides, soil slips and low speed movements may cause failure of structures but are not usually dangerous for humans. While a high-speed, long-runout and wide-spreading landslides may cause a greater disaster since they occur more suddenly, without showing any prior signs of cracks. Therefore only a small possibility exists for a timely evacuation. Thus the significance of landslide dynamics from their origin to the deposition areas is becoming crucial to reduce human loss from landslides and assess landslide hazard. This research project is focused on landslides investigations and conditions required for mobilization into debris flow. The landslide and debris flow origin (source areas) was determined by previous studies using spatio-temporal factors while rainfall, velocity, volume of deposit, sliding/flow path, and deposition area are more difficult to predict and manage and were not yet considered in studying the dynamics of the landslide. Therefore, in order to determine movement and hazard assessment regarding potential mobilization of the landslide mass into a rapid debris flow, the following key parameters will be studied: geological structure, slope inclination (relief), geomechanical characteristics of the soil, catchment area of surface water and groundwater, and rainfall threshold above which landslide failure is initiated. These parameters will be analyzed and modelled in two selected pilot areas: at the Stože landslide where a catastrophic event occurred in year 2000 and at the Potoška planina landslide where a catastrophic event could happen in the future due to unfavorable conditions and where historic and geologic evidences show that such events have happened in the past .   The main objective of this project is development of an interdisciplinary methodological approach  for risk assessment of landslides and mass flows, which will include landslide origin (source areas) modelling, assessment of deposition volume, determination of rheological characteristics of the material, and modeling of the runout distance and the zone of deposition. The existing landslide susceptibility map will be upgraded for the wider catchment of Potoška planina and Stože landslides in a detailed scale which will be directly applicable in spatial planning, planning of prevention measures, and mitigation measures. Developed hydrogeological models for both study cases will enable spatially distributed and transient modelling of processes of the hydrological cycle. At the same time integration into slope stability model will significantly improve the accuracy of landslide prediction models. The results of modeling the rheological characteristics of the sampled soils will enable the prediction of the landslide source area, its spreading and possible mobilization into debris flow and 3D visualisation of potential landslide areas at different scales. These objectives will be achieved through extensive fieldwork in order to capture the data needed to improve the reliability of the modeling results. Therefore, the project results will also be applicable in similar settings outside Slovenia (especially in Alpine environment). The project will enable the development of engineering and natural sciences which deal with the environmental issues; in particular, it will contribute to the development of the profession that is engaged with reducing the risk from natural disasters.
Significance for science
The issues being discussed here and the pilot cases (the Stože and Potoška planina landslides) will be carefully approached with an interdisciplinary method, combining engineering geology, geomorphology, geomechanics, and hydro engineering. As a result, the gained knowledge for determining, analysing, and modelling landslides will also enrich the field not only in Slovenia, but also worldwide. Previous landslide investigations have only researched critical geotechnical parameters that led to landslide activation; mobilization to debris flow/mud flow was predicted on the basis of known landslide volume and geographic characteristics of the terrain in the flow direction. Studying landslide movements from their source areas to their zones of deposition will allow for predicting both the landslide source area, spreading, as well as mobilization to debris flow. Therefore, the project results will be applicable in similar situations in other countries (e.g. the Alpine countries). The project will enable the development of engineering and natural sciences dealing with environmental issues; in particular, it will contribute to the development of the profession concerned with natural disaster risk mitigation.   Research into landslides combines integrated, interdisciplinary, natural science, technical, and other content. Undesirable effects in the environment caused by landslides and mass flows are defined using knowledge of natural sciences and solved with technical measures that form the basis for dealing with economic and legal issues and assessment of social consequences. Hence, the integration of different disciplines has a prospect for effective solving of problems related to landsliding. At the crossroads between various scientific fields we could expect the evolution of new scientific knowledge, trends, and technical solutions.
Significance for the country
The landslide and mass flow risk assessment methodology is not yet determined in Slovenia, despite the requirement laid down in the Slovenian Waters Act (ZV1, Official Gazette of RS, No. 67/2002). The results concerning the volume and deposition modelling presented in the form of thematic maps will provide an effective tool for the work of Civil Protection when dealing with landslides, improving the existing or creating a new Early Warning System (EWS) and creating risk assessments of unpredicted natural disasters. They could also be used in spatial planning and proper placement of infrastructures in relation to potential risks due to landslides and debris flows. The project results, based on the study of two pilot areas, will be transferable to other areas in Slovenia and the wider Alpine region. In Slovenia, many other major landslides occur under regional geological and hydrogeological conditions that are similar to those in the case of Potoška planina and Stože landslides. Some of them have the potential to develop into devastating debris flows, causing major property damage, or even loss of life. This way the results of the proposed project will propose landslide scenarios and enable mitigation and prevention of landslide damage. Moreover, this project's results will have important implications both for national institutions and agencies concerned with the environment, as well as for private companies associated with the design and implementation of natural disaster protection measures.
Most important scientific results Interim report, final report
Most important socioeconomically and culturally relevant results Interim report, final report
Views history
Favourite