The control sluices in the Huitong Canal were aimed at controllingwater volume and keeping an appropriate water depth fornavigation.Because they were directly related to navigation,the sluiceshad a rigorous system for their opening and closing as well asm...[繼續(xù)閱讀]

    North Canal was improved from Chaobai River (below Tongzhou wascalled Luhe River).It had high gradient and variation of discharge inhigh and low water volume.At its downstream,three rivers jointtogether and became the main stream of Haihe River.Northeast ...[繼續(xù)閱讀]

    South Canal enables all branch streams of southern system of HaiheRiver to be communicated as the trunk stream of southern system ofHaihe River and still plays a role in preventing flood,draining floodedfields and the like even today.In Yuan,Ming and Qing...[繼續(xù)閱讀]

    After collapse of the Qin-Han unified empires and 400 years ofseparatist wars during the Wei and Jin Dynasties,China once again wasrestored to a unified empire in the Sui,Tang,and Song Dynasties.Awaterway linking the political center with the economic cen...[繼續(xù)閱讀]

    In literature,sluices on the Huitong Canal can be classified,according to their functions,as water storage sluices,water intakesluices,sluices in barrages,overflow sluices,etc.The sluices in barragesare regarded as control sluices of modern hydraulic stru...[繼續(xù)閱讀]

    The Jiangnan Canal is 340 km long,connecting the Yangtze River,theTaihu Lake and the Qiantang River.During the Spring and AutumnPeriod,natural river systems were connected locally.In the QinDynasty,a continuous channel was formed,connecting the YangtzeRiv...[繼續(xù)閱讀]

    The Huaiyang Canal was called "Lake Channel" historically,whichfully illustrates the water system features of the canal.The Huaiyangregion is characterized by a low-lying terrain with many naturallakes.The Huaiyang Canal made full use of natural waters an...[繼續(xù)閱讀]

    Jiedi water reducing gate located in Jiedi Town 7.5 km away from thesouth of Cangzhou City was excavated in the Hongzhi 3rd year ofMing Dynasty (AD 1490).In this year,Jiedi water reducing river was excavated and alsocalled South Water Reducing River or Br...[繼續(xù)閱讀]

    The Huaiyang Canal was a continuous waterway formed throughexcavating some channels that connected lakes between the HuaiheRiver and the Yangtze River.It was called "Lake Channel" due tonumerous lakes along it.In the Song Dynasty,in order to solve theprob...[繼續(xù)閱讀]

    Generally,the Huaiyang Canal has a relatively gentle riverbed gradient.The reach between Gaoyou and the Yangtze River has a slightly steepriverbed gradient.After the Yellow River claimed the Huaihe River,the elevation difference of the land surface around...[繼續(xù)閱讀]