上海市一江一河堤防薄弱岸段安全评价体系分析研究

Analysis and Study on Safety Evaluation System of Weak Embankments of Two Rivers in Shanghai

摘要:

上海属于典型的平原感潮河网地区，受特定的地理环境和气候条件影响，一江一河（黄浦江、苏州河）沿岸堤防设施安全运行直接影响城市的防汛安全。2021年“烟花”台风引发黄浦江超高水位对江浙沪周边流域区域水情工情产生重要影响，而关于堤防薄弱岸段安全评价标准并未进行系统分析及梳理。现重点梳理上海市一江一河堤防薄弱岸段安全评价体系的研究背景、研究初探及应用成果，分析各种方法在不同考量角度下的得与失，总结适用性较强的薄弱岸段判定标准，便于运行管理单位制定安全度汛预案，加强薄弱岸段风险管控。

Abstract:

Shanghai belongs to a typical plain tidal river network area, and is affected by specific geographical environment and climatic conditions. The safe operation of embankment facilities along two rivers （Huangpu River, Suzhou River) directly affects the flood control safety of the city. The super high water level of the Huangpu River triggered by the "fireworks" typhoon in 2021 had an important impact on the regional water conditions in the surrounding river basins of Jiangsu， Zhejiang and Shanghai. However, the safety evaluation standard of the weak embankment section has not been systematically analyzed and sorted out. The research background, preliminary study and application results of the safety evaluation system of the weak embankment section of the two rivers in Shanghai are specially sorted out. The gains and losses of various methods under different consideration angles are analyzed, and the applicable criteria for determining the weak embankment section are summarized to facilitate the operation management units for formulating the safety flood plan， which strengthens the risk management in weak embankment sections.