期刊
ENGINEERING GEOLOGY
卷 283, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.enggeo.2021.106023
关键词
Coastal cliffs; Stability analysis; 2D-3D simulation; Friendly management; Basque Coast Geopark
资金
- UPV/EHU Research Group (Government of the Basque Country) [IT-1029/16, PES-18/97]
- Basque Coast Geopark (Geoparkea)
This paper introduces an approach to analyze and manage instabilities in coastal cliff environments, focusing on ensuring visitor safety and environmental preservation. The results enable the design of precise actions based on the characteristics of the detached blocks, leading to a more detailed and environmentally friendly management of these environments.
Coastal cliffs provide a high landscape value to many natural sites around the world. This means that an ever-increasing number of people are attracted to them. At this point, there is a growing need to manage these spaces from the safety of visitors, but with a view to preserving the environment. With this aim, this paper presents an approach to analyze and manage instabilities in these environments, particularly those subjected to significant anthropic activity, which has been implemented in the cliffs of the Basque Coast Geopark. The starting point is a detailed topographic information, obtained from UAV flights, and the identification on site of unstable elements, including their typology, active source areas, dynamics and reach. From this information, the simulation of rockfall processes, which basically correspond to toppling and infinite slope instabilities favored by differential erosion along the coastline, is approached in two and three dimensions. Results allow the design of precise actions by sectors, according to the energy, height and reach of the detached blocks, including barriers, middle slope actions, ditches and information strategies, depending on the different uses of the sectors. Therefore, this approach leads to a more detailed and environmentally friendly management of these environments.
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