Methodology for geohazard assessment for hydropower projects

Sigtryggsdóttir, Fjóla G.; Snæbjörnsson, Jónas Þór; Grande, L.; Sigbjörnsson, Ragnar

doi:10.1007/s11069-015-1906-4

Cited by 11 publications

(4 citation statements)

References 148 publications

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“…To assess and presents the hazard interactions, different tools are generally used [9]. Among them: the hazard matrix, fault trees [10]; multi-criteria analysis [11][12][13]; the negotiated choice; the implementation of a multi-scale GIS (Global Information System) and statistical modelling of vulnerability including temporal variability [14] are used to assess the multihazards. Additionally, the experts opinion and feedback are generally used to assess the interaction between hazards (Figure 1).…”

Section: Hazard Interaction Identification and Methodologymentioning

confidence: 99%

Post-Mining Risk Management and multi-hazard approaches, methodology and application

Al Heib,

Degas,

Lecomte

et al. 2024

MATEC Web Conf.

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After intensively exploiting the mineral resources of its subsoil for several centuries, French mining sites have gradually closed. The “post-mining” of a site mine is concerned by many hazards which can occur such as: ground movement phenomena (subsidence, collapses), rising gas, irreversible disruptions in underground water circulation induced by mining can potentially cause disturbances, both in terms of water circulation patterns (Flooding in low areas, disruption of waterway flows) and water quality (pollution). The multi-hazards assessment methodology consists of four steps: the identification and the assessment of the singles hazards, the identification of the potential hazard interactions, the identification of the level and the consequences of the interactions and the finally the adjustment and the mapping of the hazard interaction. The matrix tool and interaction organigrams are used to identify the potential interactions. The paper presents the methodology for the interaction between two main hazards: flooding and ground movement. The interaction methodology was applied on two case studies: shallow chalk mine and deep coal mine (France). The results demonstrate the importance of multi-hazard assessment. This analysis depends on the quality and the quantity of existing data for carrying out the multi-hazard assessment.

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Section: Hazard Interaction Identification and Methodologymentioning

confidence: 99%

Post-Mining Risk Management and multi-hazard approaches, methodology and application

Al Heib,

Degas,

Lecomte

et al. 2024

MATEC Web Conf.

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“…To assess and presents the hazard interactions, different tools are generally used. Among them: the hazard matrix, fault trees (Eshrati et al, 2015); multi-criteria analysis (Sigtryggsdottir et al, 2015, Merad et al, 2004Mladineo et al, 2014); the negotiated choice; the implementation of a multi-scale GIS (Global Information Geographic) and statistical modelling of vulnerability including temporal variability (Mancini et al, 2009;Sklodimou et al, 2019) are used to assess the multi-hazards. Additionally, the experts opinion and feedback are generally used to assess the interaction between hazards (Figure 1).…”

Section: Hazard Interaction Identification and Methodologymentioning

confidence: 99%

Post-mining risk management in France and multi-hazard approaches for coal mines

Al Heib,

Degas,

Franck

2023

Proceedings of the International Conference on Mine Closure

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After centuries of intensive exploitation of its mineral resources, French mining sites have gradually closed. However, after mine-closure and during the "post-mining" phase, numerous residual hazards can occursometimes as soon as mining works stop, or later, such as: ground movement phenomena (subsidence, collapses), rising gas, irreversible disruptions in underground water circulation induced by mining can potentially cause disturbances, both in terms of water circulation (flooding in low areas, disruption of waterway flows) and water quality (pollution).To manage hazards and risks associated with these undesirable events, the French State has several technical and regulatory tools at its disposal. These tools make it possible to compile the available knowledge on residual mining risks related to former mining sites for a given territory, to delimit the affected areas and to define the conditions of construction, occupation, and use of land as well as measures relating to the organization, use or exploitation of existing assets in a context of a sustainable land planning management. This paper presents the methodology to assess the post-mining hazards assessment. The paper also focuses on the development of new methodology for multi-hazards analysis regarding post-mining, natural and technologic hazards. The methodology analyses the hazards interactions and consequences on the environment. The multi-hazards assessment methodology consists of three steps: the identification of the singles hazards, the identification of the hazard interactions and finally the identification of the level and the consequences of the interactions. The matrix tool and interaction organigrams are used to identify the potential interactions. Three levels of interaction are considered: simple interaction, double interaction and dominos or cascading interactions. The natural and mining flooding hazard seems as the main hazard that can trigger several mining hazards: such as ground movement (subsidence, landslide, gas production, etc.).

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“…Mavrommatis et al [11] present a comprehensive framework for the multi-risk analysis of climate change, and provide operational recommendations for managing the interaction between the mining industry and natural hazards related to climate change. Sigtryggsdottir et al [12] used the interrelation matrix to identify interactions between geohazards that may affect hydropower projects and to optimize the monitoring system.…”

Section: State Of the Art Of Multi-risk Assessment 21 Definitionsmentioning

confidence: 99%

Post-Mining Multi-Hazard Assessment for Sustainable Development

Heib¹,

Franck

Djizanne

et al. 2023

Sustainability

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Today, most mines (coal, iron, and others) in Europe are already closed due to economic, environmental, and societal issues. Therefore, post-mining risk assessment and management remain crucial for mining authorities, policymakers, and planners. In the post-mining period, several hazards are likely to affect the surface areas in the closed mining sites. The impact of closed mines can lead to potentially damaging changes in surface and/or underground water flow, as well as the development of surface instabilities that can affect people or infrastructure, sometimes dangerously. The assessment of the different hazards must consider the interaction between the mining hazards and other risks (natural and technological). Thus, land use planning, particularly the rehabilitation of former mining sites, requires better tools to apprehend the multiplicity of hazards and their constraints. The paper presents a methodology considering the interactions between hazards around closed mines. After recalling the advantages of this multi-hazard analysis, the work consisted of, almost exhaustively, describing the three prominent families of hazards: mining, natural, and technological. Then, the possible interactions between hazards were described according to their nature (trigger or aggravating), their category (technical or regulatory), and their typology (dependent or independent). Finally, an attempt was proposed to evaluate the type and intensity of interactions between hazards. The multi-hazard assessment methodology was applied to a coal mine and showed the complexity and the utility of such a risk assessment analysis to improve risk management in closed mines.

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Methodology for geohazard assessment for hydropower projects

Cited by 11 publications

References 148 publications

Post-Mining Risk Management and multi-hazard approaches, methodology and application

Post-Mining Risk Management and multi-hazard approaches, methodology and application

Post-mining risk management in France and multi-hazard approaches for coal mines

Post-Mining Multi-Hazard Assessment for Sustainable Development

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