Abstract
AbstractThe design of remediation works for the mitigation and prevention of the associated risk is needed where these geological hazards affect anthropized areas. Remedial measures for landslides commonly include slope reshaping, plumbing, drainage, retaining structures and internal slope reinforcement, while debris flow control works consist in open or closed control structures. The effectiveness of the remedial works implemented must be assessed by evaluating the reduction of the risk over time. The choice of the most appropriate and cost-effective intervention must consider the type of hazard and environmental issues, and selects, wherever possible, naturalistic engineering operations that are consequently implemented according to the environmental regulations or the design and specification standards imposed by the competent public administrations. The mitigation procedures consist of five basic steps: (a) acquisition of the knowledge of the hazard process; (b) risk assessment with identification of possible disaster scenarios; (c) planning and designing of specific remedial measures to reduce and/or eliminate the potential risk; (d) slope monitoring after application of remedial measures, (e) transfer of knowledge to the stakeholders. This paper presents two case studies describing the practice for the design of the mitigation measures adopted for debris flow and active landslide sites in North-Eastern Italy. The first case study is a debris flow site, for which, based on observation of past events and numerical simulations using the software FLOW-2D, the most suitable mitigation measures were found to be the construction of a debris basin, barriers and breakers. The second case study deals with an active landslide threatening a village. Based on the landslide kinematics and the results of numerical simulations performed with the code FLAC, hard engineering remedial works were planned to reduce the driving forces with benching and by increasing the available resisting forces using jet grout piles and deep drainage.
Publisher
Springer Science and Business Media LLC
Subject
Nature and Landscape Conservation,Earth-Surface Processes,Geology,Geography, Planning and Development,Global and Planetary Change
Reference73 articles.
1. Abramson LW (2002) Slope Stabilization Methods. In: Abramson LW et al. (eds.), Slope stability and stabilization methods (2nd Edition). John Wiley and Sons, New York, USA, pp 462–603.
2. ADREM, NSEM, BNU, Lab of ESPER (2021) 2020 Global Natural Disaster Assessment Report. Saini Y (ed), China, pp 1–82. https://www.preventionweb.net/publication/2020-global-natural-disaster-assessment-report (Accessed on 21 January 2022).
3. Al-abboodi I, Sabbagh TT, Al-salih O (2020) Response of passively loaded pile groups — an experimental study. Geomech Eng 20(4): 333–343. https://doi.org/10.12989/gae.2020.204.333
4. Alberto W, Giardino M, Martinotti G, Tiranti D (2008) Geomorphological hazards related to deep dissolution phenomena in the Western Italian Alps: Distribution, assessment and interaction with human activities. Eng Geol 99: 147–159. https://doi.org/10.1016/j.enggeo.2007.11.016
5. Antronico L, De Pascale F, Coscarelli R, Gullà G (2020) Landslide risk perception, social vulnerability and community resilience: The case study of Maierato (Calabria, southern Italy). Int J Disaster Risk Reduct 46(2): 101529. https://doi.org/10.1016/j.ijdrr.2020.101529
Cited by
7 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献