Risk Analysis of Dam Failure, Floods and Growing Water Crisis in Kerala

2018 ◽  
Author(s):  
Dr Binny Mathew
Author(s):  
Keith W. Hipel ◽  
Nick Z. Zhao ◽  
D. Marc Kilgour

2021 ◽  
Vol 900 (1) ◽  
pp. 012002
Author(s):  
M Axman ◽  
Š Kročová

Abstract The safety of dams in crisis situations can be divided into several areas that can affect their functions. The aim of this work is to focus on water crisis situations on the technical infrastructure during emergencies, of which there were many in the world. The protective function of dams can be based on a thorough analysis and their measures. In the article there was risk analysis performed on a dam of choice. The ALARP analysis was used to determine risks that have to be addressed and taken precautions against. According to F-N diagram it was determined that ALARP region is located at frequencies of 0,000 1 (1-in-10 000 years) and number of people at risk at 1 – 1 000. Next there was a benefit-cost analysis performed of mitigation project, that concluded beneficial value of the dam and the costs of the mitigation project and the BCA ratio came out > 1, thus the mitigation project was recommended. In conclusion there was recommended to use both methods in comparative manner.


2011 ◽  
Vol 383-390 ◽  
pp. 2151-2155
Author(s):  
Xiao Ling Wang ◽  
Zheng Yin Zhou ◽  
Rui Rui Sun ◽  
Sha Sha Zhou

Consequences of dam-break are affected by many factors, which are of a certain degree of ambiguity. Influencing factors of dam-break consequences are summarized in this paper. At first, weights of influencing factors are determined by means of Analytic Hierarchy Process (AHP), thereafter, the fuzzy hierarchy synthesis evaluation model for dam failure is developed. Finally, Qing Linjing reservoir located in Shenzhen of China is taken as a case. The fuzzy comprehensive evaluation for the risk analysis of dam-break and the risk grades of dam-break consequences are obtained. The results indicate that it is reasonable and valuable to evaluate the risk of dam-break by using fuzzy comprehensive evaluation.


2014 ◽  
Vol 14 (2) ◽  
pp. 379-400 ◽  
Author(s):  
J. T. Castillo-Rodríguez ◽  
I. Escuder-Bueno ◽  
L. Altarejos-García ◽  
A. Serrano-Lombillo

Abstract. This article presents a methodology for estimating flood risk in urban areas integrating pluvial flooding, river flooding and failure of both small and large dams. The first part includes a review of basic concepts on flood risk analysis, evaluation and management. Flood risk analyses may be developed at local, regional and national level, however a general methodology to perform a quantitative flood risk analysis including different flood hazards is still required. The second part describes the proposed methodology, which presents an integrated approach – combining pluvial, river flooding and flooding from dam failure, as applied to a case study: an urban area located downstream of a dam under construction. The methodology enhances the approach developed within the SUFRI project ("Sustainable Strategies of Urban Flood Risk Management to cope with the residual risk", 2009–2011). This article also shows how outcomes from flood risk analysis provide better and more complete information to inform authorities, local entities and the stakeholders involved in decision-making with regard to flood risk management.


2012 ◽  
Vol 594-597 ◽  
pp. 1957-1960
Author(s):  
Rui Rui Sun ◽  
Xiao Ling Wang ◽  
Xue Fei Ao ◽  
Wei Ping Guo

Dam safety based on risk analysis methodologies demands risk quantification of the earth-rock dam project, and estimation on the failure probability of earth-rock dams is a major concern in the dam safety management. Due to numerous uncertainties, structures of the reservoir are involved leading to risks that may finally cause dam failure. The risk identification was firstly investigated according to the actual project. Subsequently, method of expertise was presented to estimate odds of the presence of each link in dam failure modes quantitatively. The reservoir composed of several dams in South China was taken as a case. The failure probabilities of each dam were obtained and results showed that risk of No.5 dam was relatively higher in all the dams. The research is of great significance to the dam safety management.


2013 ◽  
Vol 1 (4) ◽  
pp. 3305-3371
Author(s):  
J. T. Castillo-Rodríguez ◽  
I. Escuder-Bueno ◽  
L. Altarejos-García ◽  
A. Serrano-Lombillo

Abstract. This article presents a methodology for estimating flood risk in urban areas integrating pluvial flooding, river flooding and failure of both small and large dams. The first part includes a review of basic concepts and existing methods on flood risk analysis, evaluation and management. Traditionally, flood risk analyses have focused on specific site studies and qualitative or semi-quantitative approaches. However, in this context, a general methodology to perform a quantitative flood risk analysis including different flood hazards was still required. The second part describes the proposed methodology, which presents an integrated approach – combining pluvial, river flooding and dam failure, as applied to a case study: a urban area located downstream a dam under construction. Such methodology represents an upgrade of the methodological piece developed within the SUFRI project. This article shows how outcomes from flood risk analysis provide better and more complete information to inform authorities, local entities and the stakeholders involved on decision-making with regard to flood risk management.


2010 ◽  
Vol 58 (S 01) ◽  
Author(s):  
J Schönebeck ◽  
B Reiter ◽  
O Haye ◽  
D Böhm ◽  
M Ismail ◽  
...  

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