１　引言　　潮白河是历史上害大于利的河道，曾发生过多次灾害，给人民生命财产带来巨大的损失　。解放后，在中央及市政府领导下，多次对潮白河进行规划治理，修建了密云、怀柔等大中　型水库；九王庄、祖沟等橡胶坝及向阳闸、吴村闸平板闸门，有效地控制了洪水灾害，取得　 1 Introduction Chaobai River is historically superior to the benefits of the river, there have been many disasters, the people’s lives and property brought huge losses. After the liberation, under the leadership of the Central Government and the municipal government, the Chaobai River was planned and controlled many times, and large and medium-sized reservoirs such as Miyun and Huairou were constructed; rubber dams such as Jiwangzhuang and Zuogou, and the flat gates of Xiangyang and Wucunzha are effective Control of the flood disaster, made