KR20150139001A - Structure for preventing sedimentation of soil by increasing scouring effect - Google Patents

Abstract

The present invention relates to a structure for preventing the sedimentation of soil by increasing a scouring effect, capable of minimizing or preventing the sedimentation of soil on a continental slope of a river by changing the flow direction of river water using a structure. The structure for preventing the sedimentation of soil by increasing the scouring effect includes a body installed in the rear side of an area where soil is deposited, including an inclined unit recessed inward from the outer side as water becomes deeper on the front surface facing the area where soil is deposited, and including a flow guide unit recessed inward from the inclined unit to allow river water to flow downward along the inclined unit and guiding the flow direction of the river water. The present invention is characterized by a fact that the body distributes soil deposited on the front side of the body by changing the flow direction of river water around the body by the inclined unit and the flow guide unit to make the river water flow toward the area where soil is deposited.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a structure for enhancing scouring effect for preventing deposition of soil,

The present invention relates to a structure for increasing scouring effect for preventing the accumulation of gravels, and more particularly, to a gravel-scaled structure capable of minimizing or preventing the accumulation of gravel- And a scaling-effect-enhancing structure for preventing sedimentation.

Generally, the spur dyke (groin), which is installed in the river, adjusts the flow of water to maintain the width and depth of the channel and to induce sedimentation to protect the bank and the river bed. To correct and fix the channel, .

Such handmade acts as a roughness to the water flow to reduce the flow rate, thereby reducing the similar transferring ability and also controlling the flow direction and flow path of the water flow. The effect of handmade is as follows. First, by setting handmade, the flow rate is decreased and the similar transfer ability is decreased. As a result, the flow is kept away from the levee and the sedimentation of the levee is prevented to prevent the levee from scouring. Second, change the flow path so that the water flows according to the planned linear shape, and maintain the flow path so that the width of the flow is constant, thereby fixing the flow path and fixing the flow path. Third, water level is raised by installing handmade water at a point where it is necessary to secure sufficient water depth to convert or take in a part of the flow rate for the purpose of water use. Fourth, the flow of the main stream is disturbed by the influx of the tributaries, and the river acts as a bank to induce the flow when the tributary flow is not smooth. Fifth, the general conditions of the reservoir are improved to ensure the water depth required for ship transportation. Sixth, there are wells and puddles around the handmade to provide a habitat for aquatic organisms and preserve the ecosystem. Finally, handmade can be installed to create hydrophilic rivers. However, it is desirable to make handmade perform landscape improvement and other purpose functions at the same time, rather than merely improving the landscape.

In addition to these functions, another function may be required depending on the specificity of the place where the handmade is installed.

For example, in the case of a free-flowing stream, the flow velocity of the sewage on the inner side differs from the flow velocity of the sewage on the outer side, so the inner side of the stream is deposited and the outer side of the stream is eroded, The river changes into the direct river stream, and the development of the river and the river are developed.

Here, if a free-flowing stream changes into a DC stream, the possibility of flood damage in the surrounding area increases.

Accordingly, when a handmade is installed in a free-flowing stream, the handmade is required to have a new function to slow down or prevent the rate at which a free-flowing stream changes into a DC stream.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to solve the problems of the prior art as described above, and it is an object of the present invention to provide a method for reducing the amount of sediment deposited on a sediment slope side, And to provide a scouring-enhancing handmade composition for preventing scouring.

The above object is achieved according to the present invention by providing an inclined portion which is provided in a rear portion of a region where sedimentation of a gravel-like material occurs, and has an inclined portion which is recessed from the outer surface to the inside as the water depth becomes deeper And a body that is recessed inwardly from the inclined portion so that sewage descends along the inclined portion to form a flow guide portion for guiding the flow direction of the sewage, and the body is supported by the inclined portion and the flow guide portion, By the squeeze effect increasing type structure for preventing the accumulation of the gravel which disperses the gravel deposited in front of the body by changing the flow direction of the wastewater so that the sewage approaching to the side of the gravel- .

Here, it is preferable that the body has an inverted trapezoidal cross section.

In addition, the body may be formed with a penetrating portion that penetrates the front and rear surfaces of the body so that the sewage in front of the body and the sewage in the rear of the body communicate with each other.

In addition, the upper part of the body is preferably formed in a vegetation area.

Preferably, the flow guide portion is formed in a spiral shape to generate a vortex in front of the inclined portion.

The plurality of flow guide portions may be spaced apart from each other along the longitudinal direction of the body.

In addition, it is preferable that the body is installed on at least one side of a sediment slope or a load diagram of a free-flowing stream.

According to the present invention, there is provided a scouring effect increase type structure for preventing accumulation of gravels, which can secure the stability of the embankment and minimize the sedimentation of sediments in the stream, thereby reducing the change of the passage area.

In addition, it is possible to minimize the occurrence of sedimentation by improving the flow at a sediment slope side where the flow velocity is slow and stagnant, for example, the sedimentation is actively generated in the stream section.

In addition, it is possible to reduce the problem that the load is developed or water pollution by the sedimentation layer occurs.

FIG. 1 is a perspective view schematically showing a scouring effect increasing type structure for preventing deposition of gravel-like material according to an embodiment of the present invention,
FIG. 2 is a side cross-sectional view schematically showing a scouring effect increasing type structure for preventing deposition of gravel-like material according to FIG. 1,
FIG. 3 is a front view schematically showing a scouring effect increasing type structure for preventing deposition of gravels according to FIG. 1,
FIG. 4 is a perspective view schematically showing a region where the soil is deposited before installing the scouring effect increasing type structure for preventing deposition of the earths according to FIG. 1,
FIG. 5 is a perspective view schematically showing a structure in which a scouring effect increasing type structure for preventing deposition of gravels according to FIG. 1 is installed in a region where the gravel-
FIG. 6 is a perspective view schematically showing a state in which the sediments are scattered and flattened by the scouring effect increasing type structure for preventing sedimentation of the soil as shown in FIG. 1,
FIG. 7 is a view schematically showing a front and rear views of a scouring effect increasing type structure for preventing deposition of gravel according to FIG. 1, which is installed on one side of a region where a load is formed,
FIG. 8 is a view schematically showing a structure in which a scouring effect increasing type structure for preventing deposition of gravels according to FIG. 1 is installed on a sediment slope of a free grain stream.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, with reference to the accompanying drawings, a detailed description will be given of a scouring effect increasing type structure 100 for preventing the accumulation of gravels according to an embodiment of the present invention.

FIG. 1 is a perspective view schematically showing a scouring effect increasing type structure for preventing the accumulation of gravel-like material according to an embodiment of the present invention, FIG. 2 is a schematic view showing a scouring- And FIG. 3 is a front view schematically showing a structure for increasing the scouring effect for preventing deposition of the gravel according to FIG. 1. As shown in FIG.

1 to 3, a scouring effect enhancing structure 100 for preventing the accumulation of gravels according to an embodiment of the present invention is constructed such that the direction of flow of sewage is changed so that the wastewater is directed to a region where the gravel- And includes a body 110, an inclined portion 120, and a flow guide portion 130, which can minimize or prevent the accumulation of the fluid.

The body 110 serves as a main frame of the structure 100 according to an exemplary embodiment of the present invention, and functions as a general structure.

That is, it protects the banks and performs the function of the structure that calibrates the flow path.

Here, the body 110 is mostly disposed inside the water surface, and may be formed of a concrete structure or the like because it must support the pressure applied by the water flow. In addition, it may be manufactured by a concrete precast method if necessary.

2, the inclined portion 120 is formed on the front surface of the body 110, more precisely on the surface facing the front of the region where the gravel-like material is deposited, and is inclined inward as the water depth becomes deeper, And is inclined with respect to the vertical direction.

Accordingly, the flowing water approaching the body 110 side is changed in flow direction so as to flow along the inclined portion 120. If the inclined portion 120 is not formed on the body 110, the flow of water may collide with the body 110 and the direction of flow may not be changed. Alternatively, There will be no power left.

That is, the inclined portion 120 induces the flow direction of the water flow like the boomerang, but has little influence on the force due to the flow.

Here, the degree of inclination of the inclined portion 120 may be selected in consideration of the distance between the body 110 and the region where the gravel-like material is deposited, the flow velocity of the water flow, and the like.

According to one embodiment of the present invention, the body 110 is provided so that its cross section has an inverted trapezoidal shape. In other words, the body 110 is provided in such a shape that the inclined portion 120 is formed on the front side and the rear side of the body 110.

The inclined portion 120 may be formed on at least one of both surfaces of the body 110, and more preferably, the surface facing the region where the soil is deposited It may be preferable that the inclined portion 120 is formed on the front side with respect to the front side.

3, the flow guide portion 130 is recessed inwardly from the inclined portion 120 to guide the flow direction of the sewage so that the sewage flows along the inclined portion 120.

That is, the flow direction of the water flow can be switched according to the user's request through the flow guide unit 130.

According to an embodiment of the present invention, the plurality of spiral-shaped flow guide parts 130 are spaced apart from each other along the longitudinal direction of the body 110, so that water flows along the oblique direction of the body 110, To be directed away from the body 110 in the direction approaching the body 110, more precisely toward the area where the gravel is deposited.

In addition, at least two points in which the left and right direction are changed are present in the flow guide part 130, so that water flows out from the slope part 120 at this point, thereby generating horseshoe-shaped turbulence.

Furthermore, the number and spacing of the flow guiding portions 130 can be adjusted in order to vortex more effectively in consideration of the distance between the body 110 and the region where the gravel-like material is deposited and the flow velocity of the water flow.

Here, the inclined portion 120 and the flow guide portion 130 serve to promote a scorching phenomenon. Here, the phenomenon of scouring refers to the phenomenon of pie, where the rocks on the bottom or bottom, or the earths are washed away by water. However, as in the present invention, by maximizing the scouring phenomenon through the inclined portion 120 and the flow guide portion 130 in the area where the gravel-like material is deposited, the area where the gravel- A positive effect can be obtained.

In other words, a positive effect can be obtained in which the area where the soil is deposited is substantially flattened by the scour phenomenon.

In an embodiment of the present invention, the body 110 is divided into a first region, which is a front side of the body 110, and a second region, which is a rear side of the body 110, It can be disconnected.

For example, in the rainy season, on the average, the lower surface is located above the upper end of the body 110, and the first and second regions can communicate with each other through a region between the upper end of the body 110 and the lower surface.

However, in the case of a dryer, the upper end of the body 110 may be located above the sewage surface, and the first region and the second region may be partitioned into independent regions.

This can negatively affect the ecosystem by interrupting the ecosystem of the first region and the ecosystem of the second region.

In order to solve this problem, in an embodiment of the present invention, the penetration part 140 penetrating the front and rear surfaces of the body 110 may be formed so that the first area and the second area communicate with each other.

A plurality of the penetration portions 140 may be formed at arbitrary positions as needed, but they are preferably formed on the upper portion of the body 110 so as not to adversely affect flow direction change of the flowing water.

Here, the penetration portion 140 can be utilized not only as a passage through which water flows, but also as an organism for living in a river, such as a passage for fish and a fish habitat.

According to an embodiment of the present invention, a vegetation region 150 may be formed at an upper end of the body 110.

Here, the vegetation area 150 refers to a space where the vegetation 151 that can reproduce in the area grows.

That is, the vegetation area 150 may be formed at the upper end of the body 110 to obtain a visual effect that matches the natural ecological river.

Here, the upper end of the body 110 is preferably disposed below the lower surface. However, it should be determined to what extent the lower part of the water surface is to be placed considering the seasonal variation of the water surface height. Of course, the present invention is not limited thereto, and the top of the body 110 may be disposed above the water surface so that the vegetation area 150 is exposed to the outside of the water surface, if necessary.

Hereinafter, the installation method of the scouring effect increasing type structure for preventing the deposition of the above-mentioned gravels will be described.

First, a place where the scouring effect increasing type structure 100 for preventing the deposition of the gravel-like material can be installed will be described according to an embodiment of the present invention.

FIG. 4 is a perspective view schematically showing the area where the soil is deposited before the installation of the scouring effect increasing type structure for preventing the accumulation of the earths according to FIG. 1, FIG. 5 is a cross- FIG. 6 is a perspective view schematically showing a structure in which the soil-type structure is installed in a region where the soil is deposited, FIG. 6 is a plan view of the soil- As shown in Fig.

4 to 6, the scouring effect enhancement type structure 100 for preventing the deposition of the gravel-like material according to an embodiment of the present invention is constructed by dispersing the gravel- Since it is possible to minimize or prevent the deposition of the gravel, it is installed behind the area S where the deposition of the gravel occurs.

Here, FIG. 4 illustrates that the scouring effect increasing type structure 100 for preventing the deposition of the gravel-like material according to an embodiment of the present invention is installed behind the region S where the deposition is already formed, It is natural that it can be installed in the rear of the area.

For example, when applied to a free-flowing stream, it can be installed on one side of a sediment slope S2 of a stream, that is, on one side of an area S1 formed on an outer surface of a river or in which a load diagram can be formed as a center part of a river.

Such an installation example is shown in Figs. 7 and 8. Fig.

FIG. 7 is a schematic view showing a front-rear view of a structure in which a scouring effect-increasing type structure for preventing deposition of gravel-like material according to FIG. 1 is installed on one side of a region where a load is formed, FIG. 8 is a cross- FIG. 2 is a schematic view showing a structure in which a scouring-effect-enhancing structure for preventing sedimentation is installed on a sediment slope of a free-flowing stream.

That is, referring to FIG. 7 (a), when the scouring effect increase type structure for preventing the deposition of the gravel-like material is not installed according to the embodiment of the present invention, predetermined accumulation occurs at the center of the river, 7 (b), the scouring effect is increased by the scouring effect-enhancing structure for preventing the deposition of the gravels according to the embodiment of the present invention, and the accumulation of the gravels in the central region of the river .

Referring to FIG. 8, the flow direction of the sewage is changed by the scouring effect enhancement type structure 100 for preventing the deposition of the gravels according to an embodiment of the present invention, and the gravel- Flows to the downstream side of the river along the direction of the sewage flow.

Of course, the orientation of the body 110 should be kept constant even if it is installed in each case. That is, the inclined portion 120 should be disposed so as to face the flowing water.

More specifically, if it is installed on the sediment slope side of the river, the scouring effect increasing type structure 100 for preventing the accumulation of the gravel-like material is disposed such that the slope part 120 faces the inside of the river, , The scouring effect increasing type structure 100 for preventing the deposition of the gravel-like material is installed so that the inclined portion 120 faces the load diagram.

Meanwhile, in the process of installing the scouring effect increasing type structure 100 for preventing the accumulation of the gravel-like material, the lower end portion of the body 110 may be partially drawn into the sea floor. In an embodiment of the present invention, the scour effect-enhancing structure 100 for preventing the deposition of the gravel-like material performs the general function of the structure, but the scouring phenomenon must be increased by changing the flow direction of the flowing water, To be fixed.

For this purpose, a part of the body 110 may be drawn into the sea bed surface to improve the fixing force. Of course, the present invention is not limited thereto, and it is natural that a heavy load is connected to the lower end of the body 110 to support the load.

In addition, the scouring effect increasing type structure 100 for preventing deposition of a plurality of gravels can be installed in each area. Although the region S in which deposition occurs may be a narrow region, deposition may occur over a wide area. Accordingly, a plurality of scouring effect enhancing structures 100 for preventing the accumulation of gravels can be disposed so as to face the sediments, respectively.

In this case, it is preferable that the scouring effect increasing type structures 100 for preventing deposition of the respective gravels are disposed at a predetermined interval. This is for the first region and the second region to communicate with each other as described above.

As described above, the use of the scouring effect enhancement type structure 100 for preventing the deposition of the gravel-like material according to an embodiment of the present invention increases the scouring phenomenon and minimizes or prevents deposition of the gravel-like material.

That is, even if the flow velocity is slow and the area is stagnant, it is possible to forcibly flow water, that is, to improve the flow rate and flow rate, thereby minimizing or preventing the accumulation of the soil.

Here, the deposition of the gravel is prevented or minimized through the embodiment of the present invention, thereby minimizing the change of the passage area and minimizing the overflow of the river during the rainy season.

In addition, even if an artificial structure such as a scouring effect increasing type structure 100 for preventing the accumulation of gravel-like material is installed, the river area can be communicated without being partitioned, thereby preventing separation of ecosystems or water pollution.

In addition, it can be solved by forming a vegetation area that has a visually negative effect by installing an artificial structure or by disposing the upper end of the body 110 below the lower water surface.

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.

100: Scraping-enhanced structure for preventing sedimentation of soil
110: body 120:
130: flow guide part 140:
150: Vegetation area

Claims (7)

A slope portion is formed on the front surface facing the region where the deposition of the gravel-like material occurs, the inclined portion being recessed from the outer surface toward the inside as the water depth becomes deeper, and the drainage is lowered along the slope portion And a body which is recessed inwardly from the inclined portion to form a flow guide portion for guiding the flow direction of the sewage,
The body is configured to disperse the gravel accumulated in front of the body by changing the direction of flow of the sewage so that the sewage approaching to the body side by the inclined portion and the flow guide portion is directed toward the region where the gravel- Increased scour effect type structure to prevent sediment accumulation. The method according to claim 1,
Wherein the body is a structure with increased scouring effect for preventing the deposition of gravel having an inverted trapezoidal cross section. The method according to claim 1,
Wherein the body has a penetrating portion penetrating the front and rear surfaces of the body so that the sewage in front of the body and the sewage in the rear of the body communicate with each other. The method according to claim 1,
Wherein the upper part of the body is a scaling-effect-enhancing structure for preventing deposition of the gravel-like material having a vegetation area. The method according to claim 1,
Wherein the flow guide portion is formed in a spiral shape so as to generate a vortex in front of the inclined portion. 6. The method of claim 5,
Wherein the flow guide portion is disposed so that a plurality of the flow guide portions are spaced apart from each other along the longitudinal direction of the body. 7. The method according to any one of claims 1 to 6,
Wherein the body is installed on at least one side of a sedimentary slope or a load diagram of a free grain stream.

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