Peer-reviewed articles 17,970 +


Title: ROCK FALL STUDY IN DIFFERENT AREAS OF SOUTHWEST ANGOLA
ROCK FALL STUDY IN DIFFERENT AREAS OF SOUTHWEST ANGOLA

PlumX Article Metrics by Elsevier
Pedro Santarem Andrade; Elsa Kaula
10.5593/sgem2024/1.1/s02.26
10.5593/sgem2024/1.1
1314-2704
978-619-7603-67-5
English
24
1.1
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
2.Hydrogeology, Engineering Geology and Geotechnics
In this work, a rock fall assessment was carried out in two distinct areas in southwest Angola. One is located next to Chapel of Nossa Senhora do Monte in the urban area of Lubango. The other area is located on the road between the city of Lubango and the tourist area of Tundavala. The rock mass of the first area belongs to the Tundavala Formation of the Chela Group and consists of quartzitic-sandstone with a sub-horizontal bedding attitude. The rock mass in the second area is composed of quartzitic-sandstone and red siliceous volcaniclastic rocks belonging to the Chela Group. Precipitation and anthropogenic action were defined as important causes for the occurrence of rock falls. Several slope sections were used to run rock fall analysis. The slope profiles and the origin, dimension and paths of the falling rocks were defined and studied using the Rocfall software of Rocscience packages. For each slope section different simulations were performed, assuming two different mass values for each seeder positions. It was observed that the characteristics associated with the coefficients of restitution and the friction angle of the materials that make up the slopes correspond to determining factors for the trajectory, speed, and bounces of the falling rock blocks. The existing rock fall can cause vehicular damage and cause human injury. Slope stabilization procedures are proposed based on the results of the rock fall assessment.
[1] Henriques, M. H., Tavares, A. O., Bala, A. L. M., The geological heritage of Tundavala (Angola): An integrated approach to its characterisation. J. African Earth Sci., vol. 88, pp 62 –71, 2013. DOI: https://doi.org/10.1016/j.jafrearsci.2013.09.003
[2] Rocscience, Rocfall, Statistical analysis of rockfalls. Rocscience LTD. Toronto, Ontario, Canada, 2020.
[3] McCourt, S., Armstrong, R.A., Jelsma, H., Mapeo, R.B.M., New U-Pb SHRIMP ages from the Lubango region, SW Angola: insights into the Palaeoproterozoic evolution of the Angolan Shield, southern Congo Craton, Africa. J. Geol. Soc., vol. 170, pp 353–363, 2013. DOI: https://doi.org/10.1144/jgs2012-059
[4] Pereira, E.; Tassinari, C. C. G., Rodrigues, J. F., Van-Dunem, M. V., New data on the deposition age of the volcano-sedimentary Chela Group and its Eburnean basement implications to post-Eburnean crustal evolution of the SW of Angola. Comunicacoes Geologicas, 98, pp 29-40, 2011. http://hdl.handle.net/10400.9/2217
[5] Alberto, J.P., Avaliacao dos Processos de lnstabilidade do Talude da Nossa Senhora do Monte, Lubango, Angola. Master's Thesis in Geoscience. University of Coimbra, 66p, 2010, 66 p. (in portuguese)
[6] Dorren, L.K.A., Seijmonsbergen, A.C., Comparison of three GIS-based models for predicting rockfall runout zones at a regional scale. Geomorphology, vol. 56 / issues 1-2, pp 49-64, 2003. DOI: https://doi.org/10.1016/S0169-555X(03)00045-X
[7] Massey, C.I., Hodgson, I., Petley, D.N., A rockfall simulation study for housing development in Gibraltar. Proceedings of the 10th IAEG International Congress, Nottingham, United Kingdom. The Geological Society of London, paper 337, pp 1-10, 2006.
[8] Andrade, P.S., Goncalves, G., Quinta-Ferreira, M., Rock fall analysis on the city of Lubango, SW Angola. Eds. Lollino, G., et al. Engineering Geology for Society and Territory - Volume 2: Landslide Processes, Springer, pp 2027-2030, 2015. DOI: https://doi.org/10.1007/978-3-319-09057-3_360
[9] Mineo, S., Pappalardo G., Mangiameli M., Cappollo, S., Mussumeci, M., Rockfall analysis for preliminary hazard assessment of the cliff of Taormina Saracen Castle (Sicily). Sustain., vol. 10 / issue 2, 417, 2018. DOI: https://doi.org/10.3390/su10020417
[10] Sazid, M., Analysis of rockfall hazards along NH-15: a case study of Al-Hada road. International Journal of Geo-Engineering., vol. 10, 1, pp 1-13, 2019. DOI: https://doi.org/10.1186/s40703-019-0097-3
192
The financial support of FCT-MEC through national funds and, when applicable, co-financed by the ERDF within the PT2020 partnership, through the research projects UID/Multi/00073/2020 of the Geosciences Centre and UID/Multi/00308/2020 is acknowledged.
conference
https://doi.org/10.5593/sgem2024/1.1/s02.26
Download PDF
Proceedings of 24th International Multidisciplinary Scientific GeoConference SGEM 2024
24th International Multidisciplinary Scientific GeoConference SGEM 2024, 1 - 7 July, 2024
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Russian Acad Arts; Turkish Acad Sci.
185-192
1 - 7 July, 2024
website
9854
Rock Fall, Slopes, Angola, Road

25th SGEM International Conference on Earth & Planetary Sciences


International GeoConference SGEM2025
27 June - 6 July, 2025 / Albena, Bulgaria

Read More		   

SGEM Vienna GREEN "Green Science for Green Life"


Extended Scientific Sessions SGEM Vienna GREEN
3 -6 December, 2025 / Vienna, Austria

Read More
   

A scientific platform for Art-Inspired Scientists!


The Magical World Where Science meets Art
Vienna, Austria

Read More