Water gate structure used in reclamation of land from sea and dam construction and exchanging method of water body in reclaimed area of dam

Abstract

The invention discloses a water gate structure used in reclamation of land from sea and dam construction, which at least comprises a first water gate used for intake of water and a second water gate used for drainage of water, wherein the first water gate is arranged on a position of the dam, corresponding to a low-sand-content water layer, and the second water gate is arranged on a position of the dam, corresponding to a high-sand-content water layer. The invention also discloses an exchanging method of water body in the reclaimed area of the dam; when the surface of water outside the dam ishigher than the surface of water inside the dam, the first water gate is opened, the second water gate is closed, and the reclaimed area is in a water intake state; and when the surface of water outside the dam is lower than the surface of water inside the dam, the first water gate is closed, the second water gate is opened, and the reclaimed area is in a water draining state. The structure and the method disclosed by the invention not only can play a role of maintaining the seawater in the reclaimed area to be clear and the water quality to be better, but also can achieve the effects of reducing the siltation degree in the reclaimed area and the maintenance cost of dredging in the future.

Description

technical field [0001] The invention relates to the technical field of sea reclamation dams, in particular to a dike sluice applied to reclamation of seas to make seawater clear, and also relates to a method for exchanging water bodies in enclosed areas. Background technique [0002] The sea water quality in many coastal waters of our country is turbid and the water body landscape is poor, which is not conducive to the development of some high-end coastal tourism projects. In order to solve the problem of clear water, the existing technology generally adopts the method of enclosing the sea to make the water clear, that is, firstly, a relatively closed water area is built around the sea, so that the sediment in the sea water in the relatively closed water area is deposited, and then cleared after a certain period of time. Silt, thus forming a relatively clear enclosed water area. [0003] Early sea reclamation projects generally adopted submerged dam reclamation technology. ...

AI Technical Summary

Problems solved by technology

However, if the submerged dam reclamation method is used, there will be more sediment in the turbid water body entering the enclosure through the crest of the dam at high tide, and these sediments cannot be carried out by the ebb tide after settlement, which will cause serious and long-term sedimentation in the enclosure. It is bound to greatly increase the cost of dredging

Images