Abolmasov, Biljana

Bogdanović, S.

Marjanović, M.

Pejić, Marko

Samardžić-Petrović, Mileva

English

 GraFar - Repository of the Faculty of Civil Engineering

Symposium programme
Book of Abstracts 
rd
3  Regional Symposium on Landslides
in the Adriatic-Balkan Region, Ljubljana
2017
11 - 13 October 2017
Ljubljana, Slovenia
rd
3  Regional Symposium on Landslides
in the Adriatic-Balkan Region, Ljubljana
2017
Symposium sponzors
Acknowledgments
The Organizing committee is deeply appreciative of the sponsorships generously provided by the following 
companies:
Regional Symposiums on Landslides in the Adriatic-Balkan Region are important meetings of 
engineers, professionals and researchers in the region. The aim of reducing the risk of landslides 
is extremely important, and remains a both a decisive directive and challenge in the future. The 
3rd ReSyLAB will take place this time in Ljubljana, the capital of Slovenia. 
You will be visiting a Central European country where landslides threaten more than one-third of 
the Slovenian territory, which means some 20 percent of the population is vulnerable. Following 
the  ISDR-ICL Sendai Partnerships 2015–2025 for the Global Promotion of Understanding and 
Reducing Landslide Disaster Risk and the 2017 Ljubljana Declaration on Landslide Risk Reduc-
tion, the symposium will explore possible ways of enhancing cooperation between the landslide 
science community and the diverse range of stakeholders both in the Adriatic-Balkan Region and 
around the world. 
Over the next few days we hope you will enjoy the numerous opportunities for social and profes-
sional interaction with new experts and familiar colleagues and friends. Please take this sympo-
sium as an opportunity to visit the photo exhibition of selected images from the WLF4 Landslide 
Photo Contest and take advantage of our technical program. We will be hosting and presenting 
four invited lecturers over the course of the symposium. The symposium will be attended by 
over 60 geoprofessionals, including more than 20 students who are pursuing undergraduate 
studies in geology and civil engineering. The symposium organisers received 42 abstracts, out 
of which 38 papers have been accepted for oral presentation. Each paper includes one or more 
aspects of mapping, investigating, monitoring, analysing or mitigating landslides, as well as case 
studies on innovative analysis, mitigation techniques and solutions. The symposium will con-
clude with two interesting field study tours: “Landslides in the Vipava valley” and the “Potoška 
planina landslide”.
Our wish is that this 3rd ReSyLAB meets and exceeds the high expectations of all participants 
in the larger effort to achieve two primary objectives: first, it should contribute to improving 
research and putting knowledge and experience into practice; and secondly, it should serve to 
enrich a general understanding of this country, together with its rich historical and cultural back-
ground, for all those who are coming to Slovenia for the first time.
Our sincere gratitude goes to all of the sponsors who made the organization of this symposium 
possible. We appreciate all of the help we have received from members of the International Sci-
entific Committee, the Local Organizing Committee, and all of those individuals that expressed 
their support throughout the organization process.
We wish you a most fruitful and enjoyable 3rd ReSyLAB.
Mateja Jemec Auflič
Timotej Verbovšek
Matjaž Mikoš
Chairs of the Organizing Committee
 3rd Regional Symposium on Landslides in the Adriatic-Balkan Region, 
Ljubljana, Slovenia
Dear participants of the 3rd ReSyLAB 2017,
Contents
Organizing Committee
General information
Symposium programme
Programme schedule of oral sessions
Abstracts
Keynote lectures
1-Mapping and Spatial Analyses
2-Hazard Zoning and Risk
3-Monitoring Techniques and Warning Systems
4-Landslide Mechanics and Simulation Models
5-General Case Studies
6-Remedial Measures and Effects
7-Social, Political and Economic Impact
Field study tour, 1. Landslides in Vipava valley
Field study tour, 2. Potoška planina landslide
Notes
6
8
10
12
14
14
21
25
27
36
42
49
50
58
60
62
6Snježana Mihalić Arbanas
Faculty of Mining, Geology and Petroleum 
Engineering, University of Zagreb, Croatia
Coordinator of ICL ABN Network
Željko Arbanas
Faculty of Civil Engineering, University of Rijeka 
Croatia
Co-Coordinator of ICL ABN Network
Biljana Abolmasov
Faculty of Mining and Geology, University of Belgrade, 
Serbia
Co-Coordinator of ICL ABN Network
Kiril Anguelov
University of Mining and Geology “St. Ivan Rilski” 
Sophia, Bulgaria
Miloš Bavec
Geological Survey of Slovenia, Slovenia
Gordana Hadzi Niković
Faculty of Mining and Geology, University of 
Belgrade, Serbia
Adnan Ibrahimović
The Faculty of Mining, Geology and Civil Engineering, 
University of Tuzla, Bosnia and Herzegovina
Vedran Jagodnik 
Faculty of Civil Engineering, University of Rijeka, 
Croatia
Mateja Jemec Auflič
Geological Survey of Slovenia, Slovenia
Jernej Jež
Geological Survey of Slovenia, Slovenia
Milorad Jovanovski
Faculty of Civil Engineering, Ss. Cyril and Methodius 
University Skopje, Republic of Macedonia
Organizing Committee
Organizers
ICL Adriatic-Balkan Network 
Geological Survey of Slovenia
University of Ljubljana, Faculty of Civil and Geodetic Engineering
University of Ljubljana, Faculty of Natural Sciences and Engineering
Under Honorary Patronage of
Ministry of Education, Science and Sport, Slovenia
Chairpersons
Mateja Jemec Auflič
Matjaž Mikoš
Timotej Verbovšek
International Scientific Committee
7Pavle Kalinić
City of Zagreb, OEM - City Office of Emergency 
Management, Croatia
Marko Komac
Faculty of Civil and Geodetic Engineering, University 
of Ljubljana, Slovenia
Martin Krkač
Faculty of Mining, Geology and Petroleum Engineering, 
University of Zagreb, Croatia
Hasan Kulici
Albanian Geological Survey, Albania
Janko Logar
Faculty of Civil and Geodetic Engineering, University 
of Ljubljana, Slovenia
Matej Maček
Faculty of Civil and Geodetic Engineering, University 
of Ljubljana, Slovenia
Kenan Mandžić
The Faculty of Mining, Geology and Civil Engineering, 
University of Tuzla, Bosnia and Herzegovina
Miloš Marjanović
Faculty of Mining and Geology, University of Belgrade, 
Serbia
Matjaž Mikoš
Faculty of Civil and Geodetic Engineering, University 
of Ljubljana, Slovenia
Miralem Mulać
City Office of Emergency Management, Bosnia and 
Herzegovina
Igor Peševski
Faculty of Civil Engineering, Ss. Cyril and Methodius 
University Skopje, Republic of Macedonia
Tina Peternel
Geological Survey of Slovenia, Slovenia
Ana Petkovšek
Faculty of Civil and Geodetic Engineering, University 
of Ljubljana, Slovenia
Tomislav Popit
Faculty of Natural Sciences and Engineering, University 
of Ljubljana, Slovenia
Boštjan Pulko
Faculty of Civil and Geodetic Engineering, University 
of Ljubljana Slovenia
Zoran Radić
Faculty of Civil Engineering, University of Belgrade, 
Serbia
Mileva Samardžić-Petrović
Faculty of Mining and Geology, University of Belgrade, 
Serbia
Kyoji Sassa
Executive Director, International Consortium on 
Landslides, Japan
Martina Vivoda Prodan
Faculty of Civil Engineering, University of Rijeka, 
Croatia
Timotej Verbovšek
Faculty of Natural Sciences and Engineering, University 
of Ljubljana Slovenia
Marjana Zajc
Geological Survey of Slovenia, Slovenia
Sabid Zekan
The Faculty of Mining, Geology and Civil Engineering, 
University of Tuzla, Bosnia and Herzegovina
Miloš Bavec
Geological Survey of Slovenia, Slovenia
Matjaž Mikoš
Faculty of Civil and Geodetic Engineering, University 
of Ljubljana, Slovenia
Mateja Jemec Auflič
Geological Survey of Slovenia, Slovenia
Jernej Jež 
Geological Survey of Slovenia, Slovenia
Tina Peternel
Geological Survey of Slovenia, Slovenia
Timotej Verbovšek
Faculty of Natural Sciences and Engineering, University 
of Ljubljana, Slovenia
Tomislav Popit
Faculty of Natural Sciences and Engineering, University 
of Ljubljana, Slovenia
Local Organizing committee
8Official language
The official language of the 3rd Regional symposium on Landslides in the Adriatic-Balkan Region is English.
Photo exhibition
Please take this symposium as an opportunity to visit the photo exhibition of the selected photos from the 
WLF4 Landslide Photo Contest on the ground floor at the Faculty of Civil and Geodetic Engineering.
Coffee break and lunch
During session breaks, refreshments will be served free of charge to participants wearing symposium identifi-
cation badges. Lunches are included in the registration fee and will be served during lunch time.
Information for Speakers
Oral Presentations
All accepted abstracts and full papers will be presented orally. Authors should bring their presentations (in 
PowerPoint or PDF format) on a USB stick or CD/DVD-ROM, and must upload them to the computer in the 
section room 30 minutes before the actual time of the session. Symposium staff will assist authors with the 
loading of the presentation and will transfer the presentation files to the computers in the presentation rooms.
Each presentation should be 12 minutes speech followed by 3 minutes of discussion. 
Field study tour
Requirements for participants: there will be approximately two hours of walking at the both field study tours. 
Weather-appropriate clothing and sturdy footwear is required. Travel cost and a lunch box are covered by the 
organizers and symposium sponsors. 
Registration FEE
Symposium fee for all participants is 120 EUR, except for students for whom it is 60 EUR. The registration fee 
includes: symposium material, admission to all scientific sessions, book of abstracts, Proceedings of the 3rd Re-
SyLAB, refreshments during coffee breaks and lunches, social event and a field study tours (optional).
Due to delays the Proceedings of the 3rd ReSyLAB will be published soon after the symposium. 
General information
Symposium venue, 11 October 2017
University of Ljubljana
Kongresni trg 12
SI-1000 Ljubljana
Slovenia 
Symposium venue, 12 October 2017
University of Ljubljana
Faculty of Civil and Geodetic Engineering
Jamova cesta 2
SI-1000 Ljubljana
Slovenia
Registration Desk
The Registration Desk of the first day of the 3rd 
ReSyLAB will be located in the Hall of Zbornič-
na dvorana in the first floor of University of 
Ljubljana (entrance from Vegova street). 
The Registration Desk of the second day of the 
3rd ReSyLAB will be located in the 2nd floor of 
Faculty of Civil and Geodetic Engineering. 
Registration Desk
9Side Event
Round Table Discussion
Title: Enhancing cooperation between the landslide science community and end users
Date: Wednesday, 11 October 2017, 13:30–15:00 
Venue:  Zbornična dvorana, University of Ljubljana, Kongresni trg 12, 1000 Ljubljana
Organizers
Adriatic-Balkan Network of the International Consortium on Landslides (ICL ABN) 
Introductory lecture
International and regional cooperation on reducing landslide risk in Italy
Veronica Tofani, Department of Earth Sciences, University of Firenze, Italy
Moderator
Matjaž Mikoš, Chair of the UNESCO Chair on Water-related Disaster Risk Reduction, Faculty of Civil and Geo-
detic Engineering, University of Ljubljana, Slovenia
Invited panelists include landslide scientists from academic and research institutions and civil protection ad-
ministration authorities from Bosnia in Hercegovina, Croatia, Serbia and Slovenia. Following the ISDR-ICL Sen-
dai Partnerships 2015-2025 for Global Promotion of Understanding and Reducing Landslide Disaster Risk and 
the 2017 Ljubljana Declaration on Landslide Risk Reduction the Round Table Discussion will explore possible 
ways of enhancing cooperation between the landslide science community and end users from administrative 
bodies in BIH, Croatia, Serbia and Slovenia. 
The round table discussion will cover the following topics: 
(1)     Disaster risk factors and scenarios, including emerging disaster risks, in the medium and long term;
(2)     Enhance research for local, regional, national applications;
(3)     Support actions by local communities and authorities; and
(4)     Support decision-making with interaction between policy makers and the scientific community.
The aim of the Round Table Discussion is to debate, with a wider audience, the priorities for future practical 
applications derived from the scientific results gained in the framework of landslide research in those mem-
ber-countries that belong to the ICL Adriatic-Balkan Network: Albania, Bosnia and Herzegovina, Croatia, Slo-
venia and Serbia. The discussion among governmental representatives and scientists will be conducted with a 
view to finding answers to questions related to current and applicable use of geoenvironmental data and infor-
mation in systems dealing with land-use planning, civil and environmental protection, and to the development 
of related necessary legislative documentation (e.g., guidelines, laws).
Social event
Date: Wednesday, 11 October 2017, 18:00
Welcome reception in the Ljubljana City Hall (Mestna hiša).
Participants will also have the opportunity to attend a short guided tour in Ljubljana city centre focusing on 
natural stone in cultural buildings and monuments.
36
4-Landslide Mechanics and Simulation Models
Rockfall monitoring and simulation on a rock 
slope near Ljig in Serbia 
This paper addresses a rock slope on the M-22 road, which is one of the corridors with the highest 
frequency and heaviest traffic load among all of 1-b category roads in Serbia. Therefore, stability 
along its slopes is vital. One of its critical points is a medium-sized rock slope located near the town 
of Ljig. This rock slope is composed of a flysch complex, dominated by brittle and compact sandstone 
banks (2-3 m thick), interlayered by less-competent, ductile series of marly-shales (several cm thick). 
Rockfalls on this slope mainly consume larger sandstone blocks severed by three main sets of dis-
continuity plains, as well as weathered, crumbly crust atop the uppermost sandstone layers. These 
source areas were precisely identified through 4-year long slope monitoring, based on Terrestrial 
Laser Scanning technique. However, the runouts and accumulation zone was never precisely deter-
mined, because the Public Enterprise Roads of Serbia, which maintains the road infrastructure, reacts 
quickly after the fall takes place and swipes off all the shatter, so the runout evidence was never 
recorded in those 4-years.
The research concept included typical back-analysis. Firstly, the source areas were analyzed by com-
paring point clouds of the first and the latest TLS scanning epoch. Four main source areas were identi-
fied and adopted for the model. Secondly, potential rockfall block size and shape were adopted based 
on the measurements over the first epoch point cloud. Subsequently, some mechanical and physical 
properties of the rock were determined. These three steps included known and documented facts of 
the present rock slope. The last step was to simulate the most likely trajectories to obtain runout dis-
tances and possible threats to the road asset, based on known source areas and material properties.
The results show that the source area No. 4 is potentially the most critical, because its trajectories’ 
runouts can reach the road infrastructure. This was somewhat expected, given that this source area is 
positioned on the upper part of the slope, with small horizontal distance to the road. Simultaneously, 
kinetic energy, componential velocities and forces were also calculated. These showed that rockfalls 
could be easily controlled as none of the trajectories resulted in energies or forces that would be 
overwhelming for some standard structural remediation measures (mash, barriers, embankments, 
etc.). Rock bouncing and fragmentation effects did not show significant influence, because of the 
relatively short slope, moderate steepness angles of the rock face, and soft weathered material accu-
mulated along the slope’s foot that absorbs the impact energy.
Miloš Marjanović(1), Biljana Abolmasov(1), Marko Pejić(2), Snežana Bogdanović(1), 
Mileva Samardžić-Petrović(1)
(1) Faculty of Mining and Geology, University of Belgrade, Serbia (biljana.abolmasov@rgf.bg.ac.rs)
(2) Faculty of Civil Engineering, University of Belgrade, Serbia


Rockfall monitoring and simulation on a rock slope near Ljig in Serbia

http://grafar.grf.bg.ac.rs//bitstream/id/3563/1540.pdf

Rockfall monitoring and simulation on a rock slope near Ljig in Serbia

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