Research on waterlogging resilience measurement method and planning application in historic and cultural districts:Taking the Liaowuping District,Ruijin City as an example
Under the comprehensive influence of climate,the current urban waterlogging problem is becoming serious.The pipe network system is difficult to cope with the drainage pressure independently due to aging and laying difficulties.The frequent waterlogging problem has put the protection of historic and cultural districts to a major test,and it is urgent to comprehensively improve the waterlogging resilience of historic and cultural districts.The article takes the Ruijin Liaowuping historic and cultural district as an example,analyzes the interaction between the characteristics of historic and cultural districts(traditional water management system and tourism activities)and the waterlogging disasters.On the basis,the article analyzes the mechanism of waterlogging risk in the historic and cultural district with the conceptual model of urban resilience,and builds an index system for evaluating the waterlogging resilience of the historic and cultural district.The system is based on three aspects:external disturbance,ontological fragility and adaptive resilience.The study shows that the low-resilience area in the district is in the densely populated area of historic buildings inside the historic and cultural district,which is difficult to penetrate.This area is a major resilience weak point due to the prominent phenomenon of private construction and the lack of disaster response capacity while the vulnerability of the built environment is outstanding.Based on the measurement results,the targeted spatial optimization strategies and planning adjustment suggestions are proposed.
historic and cultural districtwaterlogging disasterresilient cityrobustness model
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