JP2652458B2 - Waterside structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a waterside structure, and more particularly to a waterside structure provided at the shoreline of a sea, a river, a lake, or a marsh, or underwater. The present invention relates to those having a function of purifying polluted water as well as a hydrophilic function.

[Conventional technology]

For example, seawalls, rivers, lakes and other shorelines are provided with seawalls, breakwaters, and the like. These revetments or breakwaters are provided mainly for disaster prevention.

By the way, recently, the use of marine recreation, marine sports, and the like have been increasing, and the number of users on the waterside is rapidly increasing.
For this reason, conventionally, various waterfront structures that were all over the disaster prevention,
For example, as the revetment or breakwater described above, those having a hydrophilic function have been constructed.

That is, slope revetment, stair revetment, artificial sandy beach, etc., which have not only a conventional disaster prevention function but also a hydrophilic function adapted to marine recreation, marine sports and the like.

[Problems to be Solved by the Invention] According to the above-described conventional configuration, there are the following problems.

For example, water pollution is advancing in the waterside near the city, and therefore, it is necessary for the structures constructed on the waterside to have a purification function for purifying such contaminated water. Become.

However, the conventional waterside structure has only a disaster prevention function and a hydrophilic function as described above.

Artificial sandy beaches are the ones that have strong purification functions. However, it is difficult to construct such artificial sandy beaches, new landfills are required in the suburbs of the city, it is not suitable for small-scale reclamation, and it is difficult to maintain and manage after construction. There was a problem that there was a problem of flying sand, and I was never satisfied.

The present invention has been made based on such a point, and an object thereof is to solve such a problem and to provide a sufficient purification function as well as a disaster prevention function and a hydrophilic function even in a suburb of a city. An object of the present invention is to provide a waterside structure that can be exhibited.

[Means for solving the problem]

In order to achieve the above object, the waterside structure according to the present invention includes a waterway installed on the waterside and introducing a wave rushing from the waterside to the landside, and is formed in a stepwise shape with a downward slope from the landside to the waterside. The main body of the structure, a storage channel provided at the land side end of the main body of the structure for storing water introduced through the water channel, and water entering the storage channel, And a filter member provided on each floor of the structure main body and filtering water returning to the waterside by natural flow.

(Operation)

The waterside structure according to the present invention is installed on a waterside such as a sea, a river, or a lake.

First, the water of the sea, rivers, lakes and marshes rushes.
The rushed water is introduced from the water side to the land side through the water channel of the structure body.

The introduced water enters the storage channel, from which it is introduced into the structure body via the introduction channel.

The water introduced into the structure body passes through the filtering members installed on each floor of the structure body and returns to the waterside by natural flow.

At this time, the structure main body exhibits a predetermined purification function as well as the original disaster prevention function and hydrophilic function.

That is, in the structure body, when flowing down from any floor to the floor below it, it flows down so that it falls by a head,
At that time, the surrounding air is entrained, so that the aeration effect is performed.

In addition, a predetermined filtering action is performed when passing through the filtering member of each floor. A desired purification function is exerted by these aeration and filtration functions.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS.

In this embodiment, the present invention is applied to a waterside of a coast. First, as shown in FIG. 1, there is a structure body 1 made of concrete. The structure main body 1 includes a plurality of (four in this embodiment) structural elements 3.
The plurality of structural elements 3 are arranged at predetermined intervals.

As shown in FIGS. 2 to 4, these structural elements 3 have a downward slope from the land side B toward the sea side A and are formed in a step-like manner.

A fan-shaped opening 9 is formed between the structural elements 3 and substantially in half on the sea side A. The waves rushing from the sea side A rush along this fan-shaped opening 9 and the pressure is increased by gradually narrowing the flow path.

On the right side of each fan-shaped opening 9 in the drawing, a pumping channel having a fixed width.
A reservoir channel 13 is formed at the right end of each pumping channel 11 in the drawing. The waves pushed from the fan-shaped opening 9 further travel through the pumping channel 11 and enter the storage channel 13.

On the other hand, the structure element 3 has the following configuration. First, as shown in FIG. 4, a side wall 15 is provided upright at the uppermost position and at the boundary with the storage water channel 13.
A drain hole 17 is formed in the side wall 15. Therefore,
The seawater that has entered the storage water channel 13 penetrates into the structural element 3 through the drain hole 17.

On the left side of the side wall 15 in the figure, a horizontal rectifying section 19 is provided, and after seawater is rectified by the rectifying section 19, the intake port is
Go down to the next stage via 21.

A filtering member 23 is provided in a horizontal portion of the next stage.
Accordingly, the seawater passes through the filtering member 23 from the right side to the left side in the figure, and is filtered at that time.

As the filtering member 23, for example, gravels are used.

The filtered seawater falls through the intake 21 to the next stage. Hereinafter, a filter member 23 is disposed at each stage, and the seawater is filtered and washed, and returns to the sea side A.

The structure main body 1 has a predetermined hydrophilic function such as not only having the original disaster prevention function but also allowing a human to move to the sea side A via the structure main body 1. I have.

 The operation will be described based on the above configuration.

First, a wave rushes from the sea side A. The rushed wave travels toward the land side B via the fan-shaped opening 9, and at that time, the pressure is increased by narrowing the flow path.

Seawater enters the pumping channel 11 from the fan-shaped opening 9 and enters the storage channel 13 from there. The seawater that has entered the storage channel 13 returns to the sea side A by natural flow via each structural element 3.

That is, the water enters the flow straightening portion 19 through the drain hole 17 of the side wall 15 and flows therethrough to be straightened.

The rectified seawater falls through the intake 21 to the next stage. At that time, since the surrounding air is involved, an aeration action is performed, and this aeration action greatly contributes to purification of seawater.

The seawater that has fallen to the next stage enters the filtering member 23 and passes through it. At that time, impurities and the like contained therein are removed by filtration. This filtering action also greatly contributes to the purification of seawater. At that time, a biofilm is formed on the filter member 23,
Thereby, the filtering function is improved.

Thereafter, the water drops successively to the next stage, and repeats the aeration effect thereby, the passage of the filtering member 23 in the stage, and the filtering effect thereby, and returns to the sea side A.

 The following effects are obtained according to the present embodiment.

First, it is possible to provide a waterside structure having not only a normal disaster prevention function and a hydrophilic function but also a purification function. At that time, the problems of conventional artificial beaches were solved: difficulty of land preparation, securing of new landfill near the city, enlargement of land development scale, difficulty of maintenance after land development, and flying sand can do.

In particular, the purifying function is effective because it is performed by the aeration effect by dropping seawater using the head and the filtering effect by using the filtering member 23. In addition, the function of the filtration action is enhanced by the formation of a biofilm.

In addition, since no driving means is required, there is an advantage that the maintenance cost is low.

Further, the structure body 1 can function as a fish reef. At this time, since the dissolved oxygen concentration in the seawater is high due to the aeration effect, it functions as a good fish reef.

Note that the present invention is not limited to the one embodiment.

For example, the invention can be applied not only to the sea but also to rivers and lakes. In addition, even in the case of the sea, it can be constructed in front of an existing upright seawall. In such a case, a terrace-like structure is constructed under the sea and installed on the terrace.

〔The invention's effect〕

As described in detail above, according to the waterside structure of the present invention, a structure having not only a disaster prevention function and a hydrophilic function but also a sufficient purification function can be obtained.

Further, even in the vicinity of a city, various problems can be solved and applied.

[Brief description of the drawings]

1 to 4 show an embodiment of the present invention. FIG. 1 is a top view of a waterside structure, FIG. 2 is a sectional view taken along the line II-II of FIG. 1, and FIG. FIG. 4 is a sectional view taken along the line III-III in FIG.
It is sectional drawing which expands and shows the IV section in a figure. 1 Structure body, 9 Fan-shaped opening (part of water channel) 11 Pumping channel (part of water channel), 13 Storage channel 17 Drainage hole (introduction channel), 23 Filter member

Claims (1)

(57) [Claims] 1. A structure body having a water channel installed on a waterside for introducing a wave rushing from the waterside to the land side, and having a step-like shape having a downward slope from the land side to the waterside side, and the above-mentioned structure. A storage channel provided at an end of the land body on the land side for storing water introduced through the water channel, an introduction channel for introducing water entering the storage channel to the structure main body side, and the structure described above. A waterside structure, comprising: a filter member provided on each floor of the object body for filtering water returning to the waterside by natural flow.