Study on the strategy of improving urban resilience from the perspective of sponge city construction

Urban resilience refers to the ability of a city to cope with disasters and recover its basic functions rapidly. Urban transportation, urban infrastructure, urban public policy-making and other aspects can improve the resilience of the city. At present, the urban water environment in China is still deteriorating, and the rainstorm and waterlogging disasters are still frequent. Therefore, the author chooses the sponge city construction to study the strategies to improve the urban resilience. The author chooses two aspects of urban storm and waterlogging disaster control and surface runoff, which are closely related to the improvement of urban resilience, as the main research objects, selects specific evaluation indexes and proposes calculation functions, and adopts multiple research methods such as typical case study, spatial model simulation quantitative analysis, statistical analysis and empirical research, through arc GIS analysis, PCSWMM modeling and grasshopper data-based research By means of design and horizontal comparative study of three practical cases, this paper makes a qualitative and quantitative study on the strategy of sponge city construction performance to improve the city's resilience, and the quantitative research is mainly used. There are two main achievements in this study: a set of quantitative research methods to improve the resilience of sponge city construction is preliminarily explored through the application of the evaluation model; some strategies to improve the resilience of sponge city construction are proposed.