Abstract
With the development of economy society, urbanization process are accelerated, the tension of the urban land using leads that the cities develop to the low-lying parts, and even occupy river, landfill ditch pond, it makes perched water space of the city narrow, rainfall runoff coefficient increasing, the confluence time speeding up, it increases urban flood risk. Urbanization has changed the urban hydrologic cycle characteristics, so as to make the urban rain flood characteristics changing, it easily causes short duration rainstorm seeper-waterlogging, so as to directly influence the urban residents’ lives and causes great economic losses, even casualties. City is the political, economic and cultural center, once suffered from floods, it will cause great political influence and economic losses, so, it’s necessary to analysis urban storm flood reason and put forward the corresponding countermeasures. This paper mainly discusses the urban waterlogging reason and influence on storm runoff, and discusses the countermeasures.
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