JPH0584768B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a hydrophilic seawall for forming an artificial beach having an artificial sandy beach in an area where water depth rapidly increases from the land.

[Conventional technology]

Conventionally, artificial beaches have been built using relatively shallow topography, but it was unthinkable to build an artificial beach in an area where the water suddenly becomes deeper from the land.

However, in recent years there has been an increase in requests to create artificial beaches in areas that were previously unthinkable, and especially in Japan, which is surrounded by the sea, such requests are likely to increase in the future.

[Purpose of the invention]

The present invention was made in response to the above-mentioned demands, and is an artificial artificial body suitable for water play that is less affected by waves and has good circulation of seawater from the open sea in areas where the water rapidly becomes deeper from the land. The purpose is to provide a hydrophilic seawall that can form a beach.

[Summary of the invention]

To achieve the above object, the hydrophilic seawall of the present invention has a slit in the upper part that penetrates both the open sea side and the land side at a position lower than the sea level, in the sea at a predetermined distance from the land. By building a seawall consisting of caissons that are higher than the surface of the seawall and injecting sand into the land side of the seawall so that it is located lower than the slits at the edge of the caissons, the sand is used to form an artificial beach. The characteristics of this beach are that waves from the open sea flow in through the slits in the caisson and their force is attenuated, and the seawater on the artificial beach is constantly circulated with the outside, and sand also flows out through the seawall. do not have.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side sectional view of the vicinity of a hydrophilic seawall in an embodiment of the present invention, FIG. 2 is a plan view of FIG. 1, and FIG. is a front view of the caisson of FIG. 1;

First, this hydrophilic seawall is installed in an area where the water depth rapidly increases from the land 1, and the caisson 2 is installed in the sea W at a predetermined distance from the land 1.
A seawall is constructed by installing slits in succession, and the upper part of caisson 2 has slits 3 whose lower ends are at least lower than sea level WL.
A large number of them are installed, penetrating both the open sea side and the land side.

In this embodiment, a plurality of slits 3 are communicated with each other inside the caisson 2, and the arrow A in FIGS. It is.

In addition, a covering stone 4 is laid on the front of the bottom of the installed caisson 2 to prevent scouring, but a rubble mound 5 is provided on the bottom of the caisson 2, and a backing is provided on the land 1 side of the caisson 2. Paving stone 6 has been laid.

Next, inside the land 1 side of the caisson 2 installed as described above, a slit 3 is inserted at the edge of the caisson 2.
An appropriate amount of sand S is put in so that it is located lower, thereby forming an artificial beach having an artificial sand beach.

As described above, in the present invention, the slit 3 provided in the upper part of the caisson 2 reduces the energy of waves invading from the open sea, so the area of the artificial beach becomes calm, and the seawater in the artificial beach is Fresh food from the open sea is always circulated through the slit 3 located below sea level.

Also, if necessary, the top of caisson 2 can be used as a promenade or fishing spot, but both ends of caisson 2 are not shown in the diagram, but each can be connected to land 1 as appropriate. shall be taken as a thing.

Furthermore, in the present invention, the caissons 2 are installed in succession, and the sand S is placed at a position lower than the slit 3 at the edge of the caisson 2 to form an artificial beach, so that the sand S is not washed away to the outside of the artificial beach. It is possible to prevent this and preserve the artificial beach.

〔Effect of the invention〕

As explained above, according to the present invention, it is possible to form an artificial beach in an area where the water depth rapidly increases from the land, and waves from the open sea lose their energy by passing through the slits. The artificial beach has the effect of being constantly penetrated by gentle waves and having an artificial beach with artificial sand suitable for safe and comfortable water play. Since seawater can freely flow in and out through the slits located below sea level, fresh seawater is constantly circulating at the artificial beach, allowing a good natural environment to be maintained.

In addition, at the edge of the caisson, sand is placed on the land side of the seawall so that it is located lower than the slits at the top of the caisson to form an artificial beach, which prevents sand from being washed away to the outside and preserves the artificial beach. .

Furthermore, the top of the caisson, which is higher than sea level, can be effectively used as a fishing spot, walking path, and other leisure facilities.

In addition, in the present invention, since a caisson is used as a seawall, there is also the advantage that it can be applied to coasts with large waves.

[Brief explanation of drawings]

FIG. 1 is a side sectional view of the vicinity of a hydrophilic seawall in one embodiment of the present invention, FIG. 2 is a plan view of FIG. 1, and FIG.
The figure is a front view of the caisson of FIG. 1. 1...land, 2...caisson, 3...slit, S...
Sand, W...underwater, WL...sea level.

Claims (1)

[Claims] 1. Construct a seawall consisting of a caisson that is higher than sea level and has a slit at the top that penetrates both the open sea side and the land side at a position below sea level, in the sea at a specified distance from land, and A hydrophilic seawall that creates an artificial sandy beach by inserting sand into the land side of the seawall so that it is located lower.