Proceedings of the Rocscience International Conference (RIC 2023)

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Using RocFall3 to Investigate the Rockfall Hazard Process on Highly Fractured Rocky Hills, Yaounde, Cameroon

Authors
Roger Bissaya1, *, Robert Eko Medjo1, 2, Richard Tanwi Ghogomu1, Bernard Njom1, Bernadin Bohi2
1Department of Earth Sciences, University of Yaounde 1, Yaounde, Cameroon
2Ecole Nationale Des Ponts Et Chaussées, Abidjan, Ivory Coast
*Corresponding author. Email: rogerbissaya@gmail.com
Corresponding Author
Roger Bissaya
Available Online 8 November 2023.
DOI
10.2991/978-94-6463-258-3_78How to use a DOI?
Keywords
joint; rock paths; rock slope; models; Cameroon
Abstract

Overs the last few years, several rocky hills have undergone voluminous mass movements in the Yaounde area. A first check analysis of rock and slope properties suggests that rockfalls or collapses are the most likely mode of failure in this area. This paper considers the feasibility of using RocFall3 program to help further clarify this hazard process through a case study. Therefore we set theoretical values for translational velocity (30–50 m/s) and rotational velocity (0 or 10°/s). We had as results, long and short almost rectilinear and curved/deviated paths illustrating the targets of the fallen blocks. The 30 m/s translational velocity matches with short length runout, whereas the 50 m/s translational velocity matches with long length runout. Since the slopes are difficult to achieve in the field, this simulation provided concrete overview of the phenomenon and some basic physical parameters to be retained. However, the work has been based solely on simplified/idealized models that may not be wholly representative of real field conditions.

Copyright
© 2023 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the Rocscience International Conference (RIC 2023)
Series
Atlantis Highlights in Engineering
Publication Date
8 November 2023
ISBN
10.2991/978-94-6463-258-3_78
ISSN
2589-4943
DOI
10.2991/978-94-6463-258-3_78How to use a DOI?
Copyright
© 2023 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Roger Bissaya
AU  - Robert Eko Medjo
AU  - Richard Tanwi Ghogomu
AU  - Bernard Njom
AU  - Bernadin Bohi
PY  - 2023
DA  - 2023/11/08
TI  - Using RocFall3 to Investigate the Rockfall Hazard Process on Highly Fractured Rocky Hills, Yaounde, Cameroon
BT  - Proceedings of the Rocscience International Conference  (RIC 2023)
PB  - Atlantis Press
SP  - 835
EP  - 846
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-258-3_78
DO  - 10.2991/978-94-6463-258-3_78
ID  - Bissaya2023
ER  -