KR101349523B1 - Wetland having preventing accumulation function and method for constructing the same - Google Patents

Abstract

The present invention relates to a waterway type wetland having a function for preventing the deposition of sediment and a construction method thereof. The waterway type wetland having a function for preventing the deposition of sediment comprises: a river region; a wetland region arranged at the side of the river region and having a bottom side which is extended from the riverbed of the river region and becomes higher; and a deposition preventing structure installed in the river region, reducing the cross section of a flow path from the river region to the wetland region in order to increase the flowing speed of water flowing in the river region, and having through-holes which connect the river region and the wetland region to each other, wherein the wetland region comprises: a first region adjacent to the river region; and a second region adjacent to the first region and having a bottom side above the bottom side of the first region. The deposition preventing structure is placed within the river region while being placed in parallel with the flowing direction of the flowing water, and has an upper side having transferring grooves for transferring floating sand in the wetland region to the river region. Therefore, the waterway type wetland having a function for preventing the deposition of sediment and the construction method thereof are able to prevent a river from being formed into land through sediment exclusion and construct the wetland with various ecosystems.

Description

Waterway-type wetlands with quasi-sedimentation prevention and construction methods {WETLAND HAVING PREVENTING ACCUMULATION FUNCTION AND METHOD FOR CONSTRUCTING THE SAME}

The present invention relates to a channel-type wetland having a similar sedimentation prevention function and a method for constructing the same, and more particularly, to a waterway-type wetland having a sedimentation-preventing function capable of constructing a wetland while preventing subsurface sedimentation. It is about how to build.

In the process of artificial change of stream shape and sulfur due to the natural change of stream shape that is repeated erosion and sedimentation or the construction of hand structure and the increase or decrease of water resource usage, the similar transport pattern at certain points on the river can be changed suddenly. Is accelerated while the sedimentation power is reduced, resulting in terrestrial sedimentation, where the sedimentary sedimentation is increasingly active, causing the region to lose its function as a river.

The territorialization of rivers due to sedimentary sedimentation not only causes severe deterioration of the river's water permeability, but also destroys the habitats of various aquatic or riparian plants, and is also critical for the conservation of river ecological environment and utilization of waterfront space in terms of creation of hydrophilic environment. It can cause problems.

However, current studies on river ecological restoration in Korea are promoting the sedimentation of rivers and do not recognize the problem itself.

In order to suppress such territorialization, artificial equipment may be considered to be introduced, but such artificial equipment may not only incur additional costs such as power supply but also cause secondary environmental pollution resulting from fuel use in the process. There is a problem that can be.

In order to prevent the above territorialization phenomenon, a sedimentary bone is formed in the coriander site to prevent sedimentary territorialization (Korea Patent No. 10-1039619), or a sedimentary structure is formed to prevent sedimentary sedimentation (Korea Patent No. 10-1005639), a patent for a technology (Korea Patent No. 10-0985172) to prevent land area by forming a prevention hole to induce local scour has been applied.

However, as in the first method, in the case of forming a water bone on the existing river coriander site, there is a problem that it is not easy to secure the flow rate in the reservoir for the river.

In addition, as in the second method, in the case of the technique of preventing deposition using the riverbed structure, when the width of the river becomes wider, there is a problem that the facility cost increases and deposition may occur in the downstream downstream.

Lastly, as in the third method, the sedimentation prevention technique through local scour can effectively prevent the sedimentation of sediment in the installation area, but there is a problem that installation costs are high and management is not easy when the depth is deepened. .

Accordingly, an object of the present invention is to solve such a conventional problem, and has a similar sedimentation prevention function that can block the land islands phenomena through similar exclusion in advance, and can build a wetland in which a variety of habitat ecosystem environment is created To provide a channel-type wetland and its construction method.

The object is, according to the present invention, a river area; A wetland region provided on a side surface of the river region, the bottom surface of which gradually increases from a bottom of the river region; Deposition is provided in the river area to reduce the flow cross-sectional area from the river area to the wetland area to increase the flow rate of the flowing water flowing into the river area, and to form a through hole so that the river area and the wetland area communicate with each other A prevention structure; wherein the wetland region comprises: a first region adjacent to the river region; And a second region adjacent to the first region and having a bottom surface higher than the first region, wherein the deposition preventing structure is disposed in parallel with a flow direction of the flowing water in the river region, and the wetland at an upper portion thereof. It is achieved by a waterway-type wetland having a sedimentation prevention function, characterized in that the conveying groove for the floating sand of the area is transferred to the river area side.

In addition, the transfer groove, the first groove; And a second groove from the end of the wetland region side toward the end of the river region side, the second groove having a greater distance from the first groove.

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In addition, a pipe may be installed in the through hole so that the deposition preventing structure may be prevented from being damaged from water pressure.

In addition, a plurality of through holes may be formed for each height.

In addition, the above object, according to the present invention, the wetland area construction step of expanding the river area in the width direction to build a wetland area; A structure preparation step of preparing a deposition preventing structure having a through hole; Achievement by a waterway-type wetland building method having a sedimentation prevention function comprising a; step of installing a structure to prevent the sedimentation in the river area to accelerate the flow of water flowing from the river area to the wetland area side; do.

According to the present invention, by accelerating the flow of water through the installation of the structure, there is provided a waterway-type wetland and its construction method having a similar sedimentation prevention function that can prevent the sediment to be deposited in advance to prevent the sedimentation land.

In addition, by forming various passages in the deposition prevention structure according to the water depth, by simultaneously removing the floating matter and sediment, it is possible to prevent the wetland region from being contaminated.

In addition, by forming a variety of passages in the structure to prevent sedimentation depending on the depth of the water, and to become a moving passage of the aquatic organisms between the river area and the wetland area, it is possible to create an environment in which the ecological environment of various species can inhabit.

In addition, the wetland region adjacent to the deposition prevention structure may perform a filtering function, so that various aquatic environments may be created in the wetland region away from the deposition prevention structure.

1 and 2 is a schematic view of a waterway-type wetland with a similar deposition prevention function according to an embodiment of the present invention,
3 is a perspective view of the sedimentation prevention structure of the waterway-type wetland with a similar sedimentation prevention function of FIG.
4 and 5 is a schematic diagram of a waterway-type wetland construction method having a similar deposition prevention function according to an embodiment of the present invention,
6 is for explaining the function of the wetland area after the structure installation step of the waterway-type wetland construction method having a similar deposition prevention function of FIGS.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the waterway-type wetland having a similar deposition prevention function according to an embodiment of the present invention.

1 and 2 is a schematic view of a waterway-type wetland with a similar deposition prevention function according to an embodiment of the present invention.

1 and 2, the waterway-type wetland 100 having a similar sedimentation prevention function according to an embodiment of the present invention prevents terrestrial phenomena due to sedimentary sedimentation, and has a variety of vegetation ecosystems. As related, it includes a river area 110, the wetland area 120 and the deposition prevention structure (130).

The river area 110 forms a flow path for flowing water from the upstream to the downstream side. The river area 110 in the present embodiment is the same shape as the general river, detailed description thereof will be omitted.

The wetland region 120 extends in the width direction from the side of the river region 110 and is a region in which various vegetation ecosystems inhabit. The bottom surface has a structure that gradually increases from the river region toward the outside. And a second region 122.

The first area 121 is an area adjacent to the river area 110, and the bottom surface is connected to the river bed of the river area 110, and the height increases toward the second area 120, which will be described later. Have

Meanwhile, in the first region 121 having a relatively low bottom surface and being affected by deep water and accelerated running water, the earth and sand through the transfer grooves 131 and the through holes 134 formed in the deposition preventing structure 130 to be described later. And filtration function of the form of discharging sediment and the like to the river area mainly occurs.

The second region 122 is a region adjacent to the first region 121 described above. The bottom surface of the second region 122 extends from the first region 121 and, as with the first region 121, increases in height toward the outside. Take form.

On the other hand, the habitat area of the ecological plant is formed in the second region 122, which is relatively high in the bottom surface and is not affected by the depth of the deep water flow.

Therefore, the bottom surface of the wetland region 120 including the first region 121 and the second region 122 is formed to extend from the bottom of the river region 110 to form a slope. Therefore, according to the above-described structure, the bottom surface of the first region 121 is positioned relatively lower than the bottom surface of the second region 122.

FIG. 3 is a perspective view of a sediment prevention structure of a waterway type wetland with the sedimentation prevention function of FIG. 1.

Referring to FIG. 3, the deposition preventing structure 130 accelerates the flow rate of the flowing water flowing into the wetland region 120 to exclude the sedimentation of the soil in the wetland region 120 and to advance the land area phenomenon. As a structure for blocking, it is installed on a position facing the wetland region 120 of the river area 120.

The deposition preventing structure 130 is installed in parallel with the flow direction of the flowing water in the river area 110, and the flow path cross-sectional area of the flowing water flowing into the wetland area 120 from the river area 110 due to the deposition preventing structure 130. Is reduced, and the flow rate flowing into the wetland region 120 is accelerated.

In addition, a transfer groove 131 is formed at the upper end of the deposition preventing structure 130 so that the earth and sand floating in the wetland region 120 can be transferred to the river region 110. On the other hand, the transfer groove 131 is formed in the shape of a semi-circular cross-section, is formed from the wetland region 120 side to the river region 110 side.

The transfer groove 131 formed at the top of the deposition preventing structure 130 is classified into a first groove 132 and a second groove 133, each of the first groove 132 and the second groove 133 The stream region side ends are formed to face different directions.

That is, the end portion of the side of the river region 110 of the first groove 132 has a slope that is slightly deflected upstream, while the end portion of the side of the river region 110 of the second groove 133 has a slope that is slightly deflected to the downstream side. .

A portion of the deposition preventing structure 130 immersed in the river area 110 is formed with a plurality of through-holes 134 for mutual communication between the river area 110 and the wetland area 120, the movement path of both vegetation ecology Function and serves as a transport path for excluding the sediment in the wetland region 120 to the river region (110).

The through holes 134 are formed in plural according to the depth, and the through holes 134 are prevented from being damaged by water pressure and the overall durability of the deposition preventing structure 130 is improved. The pipe 135 is installed to support the through hole.

Meanwhile, the deposition preventing structure 134 is preferably manufactured by processing a natural material such as stone, but is not limited thereto, and may be made of another artificial material to enhance durability.

Hereinafter, an embodiment of a waterway-type wetland construction method having the above-described sedimentation prevention function will be described.

4 and 5 is a schematic diagram of a waterway-type wetland construction method having a similar deposition prevention function according to an embodiment of the present invention.

4 and 5, the completed wetland construction method (S100) having a similar sedimentation prevention function according to an embodiment of the present invention, a method for constructing a wetland in a general river, wetland area construction step (S110) ) And the structure preparation step (not shown) and the structure installation step (S120).

The wetland area construction step (S110) is a step of building a wetland area 120 on the side of the river area (110).

That is, the wetland region 120 is formed by extending the side surface of the river region 110 in the width direction, and the wetland region 120 is formed in such a manner that the bottom surface thereof becomes higher toward the outside from the river region.

In this case, the wetland region 120 adjacent to the river region 110 is called the first region 121, and the wetland region extending from the first region 121 is called the second region 122.

The structure preparation step is to prepare a deposition prevention structure 130 to be installed in the river area (120). Since the deposition preventing structure 130 in the present embodiment has been described above, a redundant description thereof will be omitted.

In the structure installation step (S120) is a step of installing the prepared deposition prevention structure 130 in the river area (110).

The deposition preventing structure 130 is installed in the river area 110 facing the wetland region 120, but is installed in parallel with the flow direction of the flowing water. At this time, due to the deposition preventing structure 130 installed in the river area 110, a space is formed between the deposition preventing structure 130 and the wetland area 120, such a space from the river area 110 to the wetland area Water flows into 120.

6 is for explaining the function of the wetland area after the structure installation step of the waterway-type wetland construction method having a similar deposition prevention function of FIGS.

Due to the installation of the deposition preventing structure 130, the first region 121 having a relatively deep depth and a high flow rate flows, and the second region 122 having a relatively shallow depth and a large flow rate of the flowing water are Another type of environment is created, which will be described with reference to FIG. 6.

That is, as the cross-sectional area of the flowing water flow path flowing into the first region 121 is reduced, the flow rate of the flowing water flowing into the first region 121 is accelerated. Due to the flowing water accelerated, the earth and sand of the first region 121 exits to the river region 110 through the through hole 134 and the second groove 133 formed at the rear end of the deposition preventing structure 130.

That is, the earth and sand floating on the water surface of the first region 121 is excluded through the second groove 133 formed at the upper rear end of the deposition preventing structure 130, and the soil or sediment in the water of the first region 121 is removed. Is excluded toward the river area 110 through the through hole 134 of the deposition preventing structure 130.

At the same time, various natural habitat ecological environments are created in the second region 122 where the flow velocity is not high and the flow of the flowing water is not large. That is, in the second region 122, the flow velocity is reduced compared to the first region 121, and the depth of the water is shallow, so that an environment suitable for vegetation development is created.

In particular, even within the second region 122, the flow velocity is slower as it moves away from the river region 110, so that an environment having various flow rate conditions may be created according to a location, and thus, various kinds of ecological environments may be inhabited. Conditions can be met.

Accordingly, in the wetland region 120, the second region 122 may function as a habitat of various kinds of aquatic organisms that may inhabit at various flow rate conditions, and the river region 110 and the second region 122 The first region 121 disposed between) performs a kind of filter function to prevent sediment and sediment as the river region 110 to prevent deposition in the wetland region.

The scope of the present invention is not limited to the above-described embodiments, but may be embodied in various forms of embodiments within the scope of the appended claims. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims.

110: river area 120: wetland area
121: first region 122: second region
130: preventive structure 131: transfer groove
134: through hole 135: piping

Claims (8)

River area;
A wetland region provided on a side surface of the river region, the bottom surface of which gradually increases from a bottom of the river region;
Deposition is provided in the river area to reduce the flow cross-sectional area from the river area to the wetland area to increase the flow rate of the flowing water flowing into the river area, and to form a through hole so that the river area and the wetland area communicate with each other Including a preventive structure;
The wetland region may include a first region adjacent to the river region; And a second region adjacent to the first region and having a bottom surface higher than the first region.
The sediment prevention structure is disposed parallel to the flow direction of the flow in the river area, the sedimentation prevention function is characterized in that the transfer groove for forming the floating sand of the wetland area is transferred to the river area side Waterway-type wetland. delete delete delete The method of claim 1,
The transfer groove,
A first groove; And a second groove in which a distance from the first groove increases from an end portion of the wetland region side to an end portion of the stream region side. The method of claim 1,
A waterway-type wetland having a similar deposition prevention function, characterized in that the pipe is installed in the through-hole so that the deposition prevention structure is prevented from being damaged from the water pressure. The method according to any one of claims 1 to 5 or 6,
The through-hole is a waterway-type wetland with a similar deposition prevention function, characterized in that formed in plurality by height. In the method of building a waterway-type wetland having a sedimentation prevention function of claim 1,
Wetland area construction step of building a wetland area by extending the river area in the width direction;
A structure preparation step of preparing a deposition preventing structure having a through hole;
And a structure installation step of installing a deposition prevention structure in the river area to accelerate the flow of water flowing from the river area to the wetland area side.

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