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Evaluation Of Safety Risk Of Dam Under Terrorism

Posted on:2013-12-27Degree:MasterType:Thesis
Country:ChinaCandidate:Y WangFull Text:PDF
GTID:2246330371982624Subject:Geological Engineering
Abstract/Summary:PDF Full Text Request
Reservoir dam as part of the national infrastructure, for its target clear, protection difficulty big, destroy serious, it is easy to become the target of terrorists or Outlaws. Therefore, carrying out the research of security risk evaluation method of anti dam terrorism, analysising the existed security risk factors and puting forward the method of safety evaluation of dam can Protect the dam.Hierarchical analysis is the method of combinate the quantitative and qualitative, and make people’s subjective judgement by the mathematical form and handle it, the key is to make the people’s subjective feeling quantity by a certain scale. The key of hierarchy analysis is to establish structure model. The structure model is the logical relationships between each concept that is being generalized.Target layer for dam safety risk grade, as the total target of system to evaluate, is the main problems.The middle layer is sub criteria layer, including the profile of dam, related factors of terrorist attacks and consequence of dam failure, they are as the important factors of grade of dam safety risk.The third layer is the specific layer, is In detail the he profile of dam, related factors of terrorist attacks and consequence of dam failure.According to the structure model and method of safety risk evaluation, establishing structure matrix, and drawing weight like that, loss of life> defense capability> impacts of the social and environmental> The necessity of attack> Economic loss> structure> failure mode> position>function.Evaluating risk assessment of dam’s safety of anti terrorism can invite some experts. The task group provide full, detailed information, and make the report of dam profile, related factors of terrorist attacks and dam failure. The expert Scoring according by the uniform table, multiplied the score and weight value, and then multiplied a number of expansion, getting the overall evaluation scores of dam.For example, Shibianyu dam of Xi’an in Shanxi area belongs to the middle level based on the AHP. Results accord with the practical, confirmed that method of risk evaluation of anti-terrorism of dam security is feasible.Compared with the traditional assessment methods, analysis hierarchy method is more suitable for the system evaluation of non-characteristics of the structure and the system evaluation of multi objective, multiple criteria, multiple times. The method are better integrated the expert knowledge into the process of decision-making, which is more practical and more flexibility.
Keywords/Search Tags:Analytic hierarchy process, evaluation of safety risk, dam, Terrorist attack
PDF Full Text Request
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