灌河潮流界位置确定与港口防淤探讨

盐城市位于江苏省中部,地处黄海之滨,承接里下河腹部区的排水,区内入海河流众多,在这些入海河流上大多建有挡潮闸坝。但由于盐城市近海为淤积型海岸,闸坝的建设改变了河口的自然状态,造成港口下游淤积严重,排水不畅。灌河作为江苏省沿海唯一下游没有建挡潮闸的重要入海河流,仍为自然状态,下游港口未淤积。本文通过对灌河水体涨、落潮中氯离子含量的监测,找出海水上溯的最大距离,确定其影响范围,为其它入海流河流的防淤提供借鉴。

Discussion on the confirming tide boundary and the silt sediment prevention in the port of Guan River

Yancheng City is located on the middle of Jiangsu Province,and nears the shore of Yellow Sea,carries on the drainage from the Lixia river,has many streams and rivers joining into the sea,which have dams established in them.Because the part of the city near the sea and the shore is belong to filling up,the sluices and dams are set up which have changed the natural state of the bayou,and make the sediment downstream port badly and drainage blocked.Guan River is the unique the main river possessing the tide sluice and joining to the sea in the province,now it is natural state,no sediment downstream.This paper through the supervision measuring the chlorine ion contained in the spring tide and ebb tide to find the most intervals the sea water tracing to,and ensures the incidence,provides the reference for the other rivers against the sediment joining to the sea.