Tide stopper - Shiodome

Japanese: 潮止め - しおどめ

In sea reclamation, this refers to closing the opening between the embankment and the sea at the end of construction of a tide-retaining embankment to protect the reclaimed land from the sea, completely blocking seawater. When constructing a tide-retaining embankment, part of it is left unbuilt from the beginning, and instead, bed consolidation work that forms the base of the tide-retaining opening and protective work for the embankment on both sides are carried out, and when the embankment other than the tide-retaining opening is completed to 80% of the planned height, the tide-retaining opening is closed on a short-term basis. In rare cases, a drainage gate is built at the location of the tide-retaining opening from the beginning, and the gate is left open.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

海面干拓において，干拓地を海から守るためにつくられる潮受け堤防工事の終りに，堤防と海との開放口を締め切り，海水を完全に遮断することをいう。潮受け堤防を築造するとき，その一部は初めから築堤を行わずに，潮止め口の基礎となる床固め工とその両側の堤防の保護工を施しておき，堤防の潮止め口以外の築堤が計画高の8分どおりできたところで潮止め口を短期日に締め切る。まれに潮止め口の位置に初めから排水門をつくって，そのゲートを開いておくこともある。

出典　株式会社平凡社世界大百科事典第２版について　情報

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