KR101261122B1 - A rainwater treatment and storage structure under pavement - Google Patents

Abstract

The present invention is disposed between the pavement layer of asphalt or concrete and the ground roadbed to support the load of the pavement, and to store the rainwater flowing from the pavement rain pavement rainwater purification storage facility using a modular structure In more detail, in the rainwater purification storage facility installed in the lower part of the pavement path, disposed between the pavement layer and the ground roadbed to support the load generated in the pavement layer, to store the rainwater flowing from the pavement layer It relates to a rainwater purification storage facility under the pavement using a modular structure to include a flow path and a plurality of rainwater storage modules formed with a first inflow space and a second inflow space communicating with the flow path.

Description

A RAINWATER TREATMENT AND STORAGE STRUCTURE UNDER PAVEMENT}

The present invention is disposed between the pavement layer of asphalt or concrete and the ground roadbed to support the load of the pavement, and to store the rainwater flowing from the pavement rain pavement rainwater purification storage facility using a modular structure It is about.

In general, current sidewalks and roads are paved with water impermeability due to urbanization, and their area is getting wider. This impervious pavement prevents rainwater from penetrating into the soil, causing desertification of the soil and depleting groundwater, causing distortion of the natural water circulation system, increasing rainfall runoff and peak flow, and increasing the discharge of various nonpoint pollutants. It causes various problems such as urban flooding, destruction of water ecosystems and water pollution.

As an example of the prior art for solving the problems caused by the impermeable packaging, a "walk block provided with a porous filter" of Republic of Korea Patent No. 10-0951712 has been presented.

Looking at the prior art, the same shape as the filter hole using one or more charcoal, activated carbon, ganban stone powder, ceramic powder in the sidewalk block formed with a filter hole penetrating from the upper surface to the lower surface in order to impart breathability, permeability and purification ability The present invention relates to a sidewalk block provided with a porous filter extruded / molded to be provided.

However, the prior art focuses only on the breathability, permeability, and purification ability of rainwater using a sidewalk block, which is one of the components of the pavement layer, and the effect on rainwater storage and recycling is low.

On the other hand, as another conventional technology has been presented a "conservative block packaging system" of the Republic of Korea Patent Publication No. 10-2010-0058860, which has a storage panel at the bottom of the block without a separate source to store the rain water filtered through the filter layer in the rain In addition, the water supply to the upper block relates to a conservative block packaging system that induces evaporation by directly supplying the upper block through the capillary shape of the sand layer without using a water supply member.

The prior art is provided on the base layer, and consists of a water storage panel including a plurality of water storage portions, a filter layer provided between the water storage portions and on the water storage panel, and a block provided on the filter layers. The water storage panel is formed of an impact resistant hard resin material having a height of 4 to 10 cm, and each water storage portion is a line type having a rectangular cross section, and has a water hole at the bottom thereof, and the water hole prevents the penetration of sand. It is covered with a material that can selectively permeate water.

However, the above-mentioned conventional water storage panel using the impact resistant hard resin material does not have a large storage space of a single scale in order to stably support the lower load, and requires a large amount of water storage in a small space. In terms of rainwater utilization other than the purpose there is an inefficient problem.

Accordingly, the present invention has been made to solve the above problems, by installing a stiffness rainwater storage structure between the pavement layer and the roadbed to ensure the structural stability of the sidewalk and to secure a large amount of rainwater through a wide storage space. The purpose of the present invention is to provide a rainwater purification storage facility at the bottom of a pavement using a modular structure capable of removing and utilizing non-point pollutants in rainwater by providing an adsorption and filtering device on the structure.

In addition, instead of forming the base of the road by using the crushed stone used in the existing road paving construction, a modular structure that can reduce the period and construction cost of the road paving construction by applying a modular structure having stability and support as a base layer. Another purpose is to provide a bottom rainwater purification storage facility with used pavement.

As a means for solving the above problems, the rainwater purification storage facility under the pavement using the modular structure of the present invention is a rainwater storage structure installed in the pavement, which is disposed between the pavement layer and the ground roadbed and is generated in the pavement layer. And a plurality of rainwater storage modules formed with a flow path and a first inflow space and a second inflow space communicating with the flow path to store rainwater flowing from the paving layer.

The present invention comprises a first geotextile is configured on the rainwater storage module upper surface serves to remove pollutants of rainwater; And a second geosynthetic fiber configured to be disposed on a lower surface of the rainwater storage module to perform a role of distributing load generated by the rainwater storage module.

The present invention is characterized in that it further comprises adsorption and filtration means for removing the non-point contaminants from the rainwater is installed in the rainwater storage module.

As an example, the adsorption and filtering means may include a grid-shaped grid and a screen frame configured to enclose an edge of the grid so as to fix the grid, and to be inserted into the first inflow space. It is characteristic.

As one example, the adsorption and filtration means is composed of a filter medium and a filter net surrounding the filter medium with particles smaller than the filter medium to prevent loss of the filter medium, and passing through any one surface of the rainwater storage module. It is characterized by including a filter column installed to be located in.

As one example, the adsorption and filtration means is composed of a lattice grid, a screen frame surrounding the grid so as to fix the grid, and at least one buoyancy body mounted below the screen frame, It characterized in that it comprises a second screen flowing in the upward or downward direction in accordance with the action of the buoyancy body on the second inlet space.

On the other hand, the present invention further comprises a support plate configured to have a predetermined height in the first inlet space of the rainwater storage module, it is characterized in that it is possible to adjust so that the rate of outflow of a large amount of rainwater flowing into the rainwater storage module is reduced have.

The rainwater purification storage facility under the pavement using the modular structure of the present invention as described above to ensure the structural stability of the pavement to form a large storage space at the bottom of the pavement to store a large amount of rainwater flowing into In addition, the rainwater storage module is provided with adsorption and filtration means, through which the effect of removing non-point pollutants that may occur from rainwater occurs.

In addition, instead of the method of forming the base of the road by using the crushed stone used in the existing road paving construction, by applying a modular structure with stability and support as a base, the effect of reducing the road paving period and construction cost is generated. do.

1 is a perspective view showing a rainwater purification storage facility under the pavement using a modular structure according to the present invention.
Figure 2 is a perspective view showing a rainwater storage module of one configuration of the present invention.
3A is a perspective view of a screen according to a first embodiment of the present invention.
Figure 3b is a perspective view showing a filter pillar according to a second embodiment of the present invention.
3C is a bottom perspective view illustrating a second screen according to a third embodiment of the present invention.
4A is a cross-sectional view of a pavement bottom rainwater purification storage facility using the modularized structure to which the screen of FIG. 3A is applied.
FIG. 4A is a cross-sectional view of a pavement bottom rainwater purification storage facility using the modular structure to which the filter pillar of FIG. 3B is applied. FIG.
5 is a perspective view showing a supporting plate of one configuration of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

1 is a perspective view showing a rainwater purification storage facility under the pavement using the modular structure according to the present invention, Figure 2 is a perspective view showing a rainwater storage module which is one configuration of the present invention. 3A is a perspective view showing a screen according to a first embodiment of the present invention, FIG. 3B is a perspective view showing a filter pillar according to a second embodiment of the present invention, and FIG. 3C is a third embodiment of the present invention. Bottom perspective view showing a second screen according to the present invention.

In addition, Figure 4a is a cross-sectional view showing a rainwater purification storage facility under the pavement using the modular structure with the screen of Figure 3a, Figure 4a is a cross-sectional view showing a rainwater purification storage facility under the pavement using the modular structure with the filter column of Figure 3b. 5 is a perspective view showing a supporting plate which is one configuration of the present invention.

The present invention is disposed between the pavement layer 10, such as asphalt or concrete and the base plate 20 roadbed to support the load of the pavement, and to store the rainwater flowing from the pavement rainwater below the pavement It relates to a purification storage facility.

The rainwater purification storage facility includes a plurality of rainwater storage modules 30 arranged side by side between the paving layer 10 and the base 20 roadbed to correspond to the construction range of the paving layer 10 as shown in FIG. 1. And first and second geosynthetic fibers 40 and 50 attached to upper and lower surfaces of the rainwater storage module 30 and sand layers 60 formed on upper surfaces of the first and second geosynthetic fibers 40, respectively. .

The rainwater storage module 30 has a general rectangular parallelepiped shape and is composed of a plurality of unit modules. The rainwater storage module 30 is not shown in the drawing as a configuration that is assembled side by side so as to correspond to the construction range of the packaging layer 10 during the construction of the packaging layer 10, other coupling water is provided adjacent to the other rainwater Mutual coupling with storage module 30 may be achieved.

As illustrated in FIG. 2, the rainwater storage module 30 has a flow path 300 formed therein so that rainwater may flow into and move to a bottom portion thereof. The flow path 300 of the rainwater storage module 30 is in communication with the other side of the rainwater storage module 30 to the side opening (1) which is installed on the outside of the pavement, as shown in Figure 6, for each rainwater The storage module 30 has first inlet spaces 310 formed on one side and the other side thereof, and second inlet spaces 320 formed on the left and right sides thereof, respectively.

Accordingly, the rainwater moving from the upper portion of the pavement layer 10 to the side opening 1 is a first inflow space of the rainwater storage module 30 disposed below the pavement layer 10 through the side opening 1. It is to be introduced into 310, the rainwater is introduced into the drainage pipe (2) is installed to communicate with and stored at the same time through the flow path 300.

As described above, the rainwater storage module 30 formed with the flow path 300 and the first and second inflow spaces 310 and 320 accommodates rainwater along the packaging layer 10 under the packaging layer 10. It will form a space that can be stored.

 In addition, the rainwater storage module 30 has a rigidity capable of supporting the load generated on the pavement layer 10 from the top of the base 20 roadbed to serve as a crushed stone base that has been used previously. Here, the rainwater storage module 30 is not limited to the material as long as it can secure sufficient rigidity with respect to the load generated from the paving layer 10, but may be preferably made of a concrete material.

Therefore, instead of the method of forming the base of the road by using the crushed stone used in the existing road paving construction, by applying a modular structure having a stable and supportive force as a base can be reduced the road paving construction period and construction costs.

In addition, the rainwater storage module 30 is provided with adsorption and filtration means to remove non-point pollutants that may occur from rainwater.

Specifically, the adsorption and filtration means is installed in the rainwater storage module 30, and absorbs and filters foreign matters contained in the rainwater. Such adsorption and filtration means can be carried out in various ways through known techniques to which physical or chemical treatment methods are applied, and the present invention provides three examples.

First, the adsorption and filtration means according to the first embodiment of the present invention includes a porous screen 70 for removing contaminants having a large particle size contained in rainwater as shown in FIGS. 3A and 4A. .

The screen 70 is composed of a grid-shaped grid net 700, and a screen frame 701 surrounding the border of the grid net 700 so as to fix the grid net 700, the first inflow It is inserted into the space 310.

In this case, the screen frame 301 is inserted into the first inlet space 310 of the rainwater storage module 30 so that the screen frame 701 may be inserted in a slide manner. As well as fixing the 701, the screen 70 is detached and attached from the screen groove 301, it is possible to replace the screen 70 later.

Due to the configuration of the screen 70, the rainwater storage module 30 according to an embodiment of the present invention to filter the contaminants of the rainwater introduced through the first inlet space 310 to discharge into the rain pipe (2) You can do it.

The adsorption and filtration means according to the second embodiment of the present invention may be configured to include a stick-shaped filter pillar (71).

As shown in FIGS. 3B and 4B, the filter pillar 71 according to the present embodiment is installed to penetrate one surface of the rainwater storage module 30 to be positioned in the flow path 300. Rainwater storage module 30 has at least one inlet 302 is formed on one surface, each of the inlet 302 is provided with the filter pillar 71 is inserted.

The filter column 71 is a filter medium 710 used by mixing at least one of sand, activated carbon, zeolite and synthetic resin, and the filter material (particles) relatively smaller than the filter medium 710 to prevent loss of the filter medium 710. 710 is composed of a porous filtering network 711 surrounding. As described above, the filter pillar 71 according to the present exemplary embodiment is installed to be positioned in the flow path 300 to filter foreign matters contained in rainwater flowing through the first and second inflow spaces 310 and 320. By adsorption, it becomes possible to discharge by filtration.

In addition, according to the present embodiment, as shown in FIG. 4B, the pavement layer 10 may be applicable to the case where the water permeable layer is formed. Is introduced into the inlet 302 of the pass through the filter column 71 can be adsorbed and filtered foreign matters contained in the rain water.

Finally, the adsorption and filtration means according to the third embodiment of the present invention may include a second screen 72 that flows in accordance with the amount of rainwater flowing into the rainwater storage module 30.

The second screen 72 is installed in the first inflow space 310 or the second inflow space 320 of the rainwater storage module 30, the same as the screen 70 according to the first embodiment described above In order to remove pollutants of large particle size contained in rainwater,

Specifically, as shown in FIG. 3C, the second screen 72 has a grid frame 720 that surrounds the grid network 720 and the frame of the grid network 720 to fix the grid network 720. It is composed of 721, the sliding flow on the first inlet space 310 or the second inlet space 320 in an upward direction to a downward direction. In addition, the second screen 72 further comprises at least one buoyancy body 722 at the bottom of the screen frame 721 to act in accordance with the amount of rainwater flowing into the flow path to flow upwards or downwards. It is.

Accordingly, when a large amount of rainwater is introduced at a time, the second screen 72 is moved upward in accordance with the action of the buoyancy body 722 to the first inlet space 310 or the second inlet space 320 By fully opening, it is possible to prevent the rainwater from being delayed. In general, when the amount of the rainwater is small, the rainwater is moved downward to remove contaminants contained in the rainwater.

The first inflow space 310 or the second inflow space 320 of the rainwater storage module 30 may also correspond to a screen groove corresponding to the screen frame 721 of the second screen 72 so that the slide can flow in a sliding manner. No wonder that (301-1) should be formed.

On the other hand, the rainwater storage module 30 according to the present invention is a support plate 80 having a predetermined height is formed in the first inlet space 310 described above, as shown in Figure 5, the support plate 80 By the configuration it can be adjusted so that the rate of outflow of a large amount of rainwater introduced into the rainwater storage module 30 is reduced. That is, when rainwater flows in at a height greater than or equal to the height at which the support plate 80 is formed, the rainwater passes through the flow path 300 and is configured to be stored. Accordingly, it is possible to ensure the amount of rainwater storage in the space in the rainwater storage module 30 even after the rainfall.

In addition, the support plate 80 performs the function of the strut in addition to the function of adjusting the flow rate of the rain water as described above. That is, the support plate 80 can stably support the load of the pavement layer 10 positioned at the top by minimizing stress concentration by forming a wide area of the base portion which is in contact with the ground as shown in FIG. 5. Will be.

Here, the screen 70, the second screen 72, the filter column 71 and the support plate 80 are described as one embodiment, respectively, but the rainwater storage module 30 according to the present invention is implemented as described above. Of course, it can be installed by applying a combination of examples.

As described above, the rainwater purification storage facility in the lower part of the pavement according to the present invention is rainwater introduced through the side opening (1) during the rainfall, and the filter column 71 and a plurality of filter columns installed on the rainwater storage module (30) upper surface Rainwater introduced through the gap between the rainwater storage module 30 is penetrated into the ground through the rainwater storage module 30 or flows out to the rain pipe 2 or the outside to be discharged or recycled.

In addition, while ensuring the structural stability of the pavement at the same time to form a large storage space in the lower portion of the pavement can store a large amount of incoming rainwater, the rainwater storage module 30 is provided with adsorption and filtration means Through this, it is possible to remove non-point pollutants that may occur from rainwater.

On the other hand, the rainwater purification storage facility at the bottom of the pavement according to the present invention, as shown in Figure 1 on the upper and lower surfaces of the rainwater storage module 30, respectively, the first civil fiber 40 and the second civil fiber ( 50) is attached.

First, the first geosynthetic fiber 40 attached to the upper surface of the rainwater storage module 30 is a kind of geotextiles used for filtration, to remove contaminants in the rainwater from the rainwater storage module 30. It is composed.

In addition, the second geosynthetic fiber 50 attached to the lower surface of the rainwater storage module 30 is a geosynthetic fiber for reinforcement or absorption function, and is stable to tensile strength generated by the rainwater storage module 30. At the same time to serve to distribute or reduce the load and strain transmitted to the base 20.

The first and second geosynthetic fibers 40 and 50 are a kind of general geosynthetics including various functions, and take a sheet form to form a plurality of rainwater storage modules 30 as a whole. It may be attached, or may be of a structure attached to each of the rainwater storage module 30 attached to the upper surface.

In addition, the sand layer 60 is formed on the first geosynthetic fiber 40, and serves as a buffer of the pavement layer 10 between the pavement layer 10 and the rainwater storage module 30. .

Although the preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of the invention.

1: side mouth 2: excellent pipe
10: packaging layer 20: base plate
30: rainwater storage module 40: the first geotextile
50: second civil fiber 60: sand layer
70: screen 71: filter pillar
72: second screen 80: support plate

Claims (7)

In rainwater purification storage facility installed in the lower part of the pavement,
A plurality of first inlet spaces and second inlet spaces disposed between the paving layer and the ground road to support loads generated from the paving layer, and storing the rainwater flowing from the paving layer; Includes a rainwater storage module,
Adsorbing and filtering means for removing the non-point pollutants from the rainwater is installed in the rainwater storage module further includes,
The adsorption and filtration means,
It comprises a filter medium, and a filter net surrounding the filter medium with particles smaller than the filter medium to prevent the loss of the filter medium, and comprises a filter column installed to be located in the flow path through any one surface of the rainwater storage module. A rainwater purification storage facility beneath a pavement using a modular structure.
delete delete delete delete The method of claim 1,
The adsorption and filtration means,
A grid-shaped grid, a screen frame surrounding the grid so as to fix the grid, and at least one buoyant body mounted on the bottom of the screen frame, the first inlet space or the second inlet space A rainwater purification storage facility under the pavement using a modular structure, characterized in that it comprises a second screen flowing upward or downward in accordance with the action of the buoyancy body. The method of claim 1,
The rainwater purification storage facility under the pavement using a modular structure further comprising a support plate configured to have a predetermined height in the first inflow space of the rainwater storage module.

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