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近年来,提及暴雨造成的城市内涝,许多人都认为大量积水无法排出的罪魁祸首是市政雨水管网,但真的是这样吗?周老师给出了不同的答案。1何为内涝?城市内涝是指由于强降水或连续性降水超过城市排水能力致使城市内产生积水灾害的现象。造成内涝的客观原因是降雨强度大,范围集中。降雨特别急的地方可能形成积水,降雨强度比较大、时间比较长也有可能形成积水。2内涝原因
In recent years, referring to the urban waterlogging caused by torrential rain, many people think that a large amount of stagnant water can not be discharged is caused by the municipal stormwater pipe network. But is that really true? Teacher Zhou gave a different answer. What is internal waterlogging? Urban waterlogging refers to the phenomenon of waterlogged disasters in the city caused by heavy rain or continuous rainfall over urban drainage capacity. The objective cause of waterlogging is the large rainfall intensity and the concentration range. Where there is a special rainfall, water accumulation may be formed, rainfall intensity may be relatively large, and water retention may occur after a long period of time. 2 causes of waterlogging