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首页> 外文期刊>Natural Hazards >Investigation into pluvial flooding hazards caused by heavy rain and protection measures in Shanghai, China
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Investigation into pluvial flooding hazards caused by heavy rain and protection measures in Shanghai, China

机译：上海暴雨引起的洪水泛滥危害调查及保护措施

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摘要

Flooding hazards caused by heavy rainfall in Shanghai have been reported extensively in the last 15 years. Geologically, Shanghai is sensitive to flooding hazards due to low-lying ground caused by land subsidence. Climatically, Shanghai is in the East Asia monsoon area and frequently experiences torrential rains. In this study, data from fifty-four pluvial flooding events between 2001 and 2015 were collected and analysed. The influence factors contributing to pluvial flooding are evaluated, and recommendations for protective measures are presented. The pluvial flooding prevention capacity in Shanghai is controlled by rain water storage and discharge capacity, which is associated with the sewer network, pumping stations and its sluice and pumping gates. Within the last three decades, the number of local torrential rainfall events and short-duration torrential rains has increased annually. However, the rain water storage capacity has decreased dramatically and the rain water discharge capacity has become limited during this period. In an extreme case, the discharge function of the sewer network was even temporarily lost because of flooding of the distributaries of the Huangpu River. Thus, in order to prevent flooding hazards caused by heavy rain, it is suggested that a large sluice and pumping station between the Huangpu River and the Yangtze River estuary is constructed in the near future, considering the continuous subsidence of the city and the ongoing rising sea levels.
机译：在过去的15年中，广泛报道了上海大雨造成的洪水灾害。从地质上看，上海对地面沉降造成的低洼地带造成的洪灾危险敏感。在气候上，上海位于东亚季风区，经常有暴雨。在这项研究中，收集并分析了2001年至2015年间54次洪灾事件的数据。评估了造成小洪泛滥的影响因素，并提出了保护措施的建议。上海的防洪能力是由雨水的储存和排放能力控制的，雨水的储存和排放能力与下水道网络，泵站及其水闸和抽水闸门有关。在过去的三十年中，当地的暴雨事件和短时暴雨的数量逐年增加。但是，在此期间，雨水的蓄水量急剧下降，雨水的排出量受到限制。在极端情况下，由于黄浦江支流的泛滥，下水道的排水功能甚至暂时丧失了。因此，为防止暴雨造成的洪水灾害，考虑到城市的持续沉降和持续的上升，建议在不久的将来在黄浦江和长江口之间建造一个大型水闸和泵站。海平面。

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