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一、爱德河坝爱德河是联邦德国石勒苏益格—荷尔斯泰因州最大的一条河流,集水区2000 km~2。修堤、支流筑坝、北海至波罗的海运河的开掘以及1936年诺德菲尔德坝的修筑,对爱德河感潮区产生了不利影响。已观测到的水文和地形的变化是:水位升高,淤积量增大。除了北槽改向,最近一次改善措施是1972年在洪德克尼尔—沃勒维克一线筑坝,它要满足三个主要要求:(1)持久防护爱德河区风暴潮。(2)为爱德河流域创造最佳排水条件。(3)维护航运事业。吸取诺德菲尔德坝的教训,在这里建造的5孔挡潮闸,每孔净宽达40m,使潮汐几乎可以无阻挡地进出,以便尽量维持自然潮汐的状态及其与地形的相互作用。
First, the Ed river dam River is the Federal Republic of Germany Schleswig-Holstein’s largest river, catchment 2000 km ~ 2. Trimming dykes, tributaries dredging, excavations of the North Sea to the Baltic Sea canal and the construction of the Norborn dam in 1936 adversely affected the Edmund tide zone. The observed changes in hydrology and topography are: rising water levels and increasing siltation. In addition to the redirection of the North Trough, the most recent improvement was the damming of the flood line in Hunde-Nebulequewk in 1972, which fulfilled three major requirements: (1) long-lasting protection against storm surges in the river Ed. (2) to create the best drainage conditions for the Ed. (3) Maintenance of shipping business. Draw lessons from the Noordfeld dam and a 5-hole tidal trap built here with a net width of 40m per hole allows almost unlimited access to the tides in order to maintain the natural tidal state and its interaction with the terrain as much as possible.