2020年后,长江口深水航道疏浚土的合理有效处置将成为深水航道运营维护面临的一大难题.为解决疏浚土的合理处置和有效利用,通过对长江口海洋倾倒区规划和滩涂资源开发利用规划分析,提出了几个比较可行的疏浚土处置方案,并分析各处置方案的实施条件、处置安排以及所采用的施工工艺,然后对各处置方案进行综合比较,得出2020年后长江口深水航道疏浚土处置仍应当结合横沙圈围造陆的结论,为航道维护疏浚土的有效利用提出了经济合理的技术方案.%After 2020,how to dispose the dredged material in the Yangtze estuary deepwater navigation channel reasonably and effectively will become a major problem which must be faced in waterway maintenance.In order to solve the problem reasonably and effectively,according to analyse the development and utilization planning of ocean dumping area and tidal flat,we put forward several plans and expound their implemented conditions,disposed plans and construction technologies,then compared the plans comprehensively,and got the conclusion that the dredged material still should be disposed to Hengsha after 2020,which can provide the economical and reasonable technical scheme for the effective utilization of dredged material.
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