KR20160098991A - Side gutter for mountain ridge - Google Patents

Abstract

The present invention relates to a mountain ridge side gutter with a mesh-type opening. The mountain ridge side gutter with a mesh-type opening comprises: a frame having a mesh-type opening firmed on a body buried in a slope of a mountain ridge in a direction of flow of underground percolating water so that the underground percolating water flowing from an upper portion of the ridge is easily introduced into the mountain ridge side gutter and drained; and a rubble part and a filter unit formed from the outer side of the frame in order. Therefore, the mountain ridge side gutter with a mesh-type opening can prevent erosion by quickly introducing the underground percolating water into a body, and preventing accidents of damage to the mountain ridge side gutter and collapsing of ground in which the mountain ridge side gutter is buried.

Description

{SIDE GUTTER FOR MOUNTAIN RIDGE}

[0001] The present invention relates to a ridge-side opening formed with a mesh-like opening, and more particularly, to a ridge-side opening provided with a mesh-like opening, in which the ground penetration water flowing down from the top of the ridge smoothly flows into the ridge- And a filter portion and a crushed stone portion are sequentially formed on the outer side of the frame to allow groundwater to flow into the interior of the body rapidly to minimize groundwater flowing into the slope surface, The present invention relates to a ridge-like cross-section having a mesh-like opening capable of preventing the occurrence of scour phenomenon due to water on the surface thereof and preventing the slope failure due to the elution of water from the ridge, the breakage of the ridge- will be.

Generally, the ridge side is constructed on the ridge side of the slope with the upward terrain slope and on the slope side such as the slope, so as to prevent the slope of the slope on the slope that can be caused to flow down on the slope side and the collapse of the slope (slope) It is a repair facility built on the slope.

As shown in Fig. 1, the ridge-side accessory 10 to be installed on the incision or slope surface is constructed such that a drainage passage having an open top shape such as a "V" or "U" shape is buried in the slope surface, (Surface water), thereby preventing the slope of the slope from collapsing.

However, in the above-described conventional ridges 10, the surface water flowing down from the upper part of the ridge to the ridge side is permeated into a loose soil layer on the rear side of the ridge, the ground penetration water is blocked by the concrete wall part of the ridge side, There is a problem that the slope surface collapses.

That is, when rainfall occurs, most of the rainfall permeates into the upper ground, and only the surface water flowing along the surface flows down along the surface of the ridge in a short time, and is drained safely through the ridge 10, Loose soil layer is formed and the concrete wall wall is formed and it is difficult to drain smoothly.

Thus, the groundwater infiltrating into the ground of the ridge meets the back surface of the ridge 110 while flowing along the slope. The groundwater penetrates into the lower ground of the ridge 10, So that the scraping phenomenon of forming a gap between the crest 10 and the ground is caused.

Even if the flow rate is low, the ground penetration water causing the scouring phenomenon stays in the lower ground of the ridge 10 for a long period of time and weakens the ground. When such action is continued, the bearing capacity of the ridge 10 is weakened, There is a possibility that the sidewall 10 may be broken, and the breakage of the ridge side wall leads to a collapse of a landslide or a slope surface.

Therefore, as a prior art for solving the problem, there is "a slush surface for preventing shrinkage and an anti-shrinkage system using the same and a construction method thereof" in Korean Patent Registration No. 10-1239369. In the prior art, a wing portion protruding in a horizontal direction and a vertical direction is provided at a lower edge portion of the U-shaped upstream side of a drain port so that water impregnated inside the cut-out portion is blocked by the horizontal wing portion, The underground penetration water flowing downward is clogged in the vertical wing portion.

According to the prior art, there is a structure in which a perforated pipe is disposed in the horizontal wing portion or a water layer is filled with rubble and the underground penetrating water flowing down to the back of the ridge side is guided to the side of the ridge.

However, according to the above-described prior art, since the horizontal wing portion and the vertical wing portion are formed on the rear surface of the mountain rim, the volume of the ridge side portion is increased. This increase in the volume of the ridge side tends to increase the consumption of the raw material for manufacturing the ridge side tile, which raises the manufacturing cost and takes a considerable time to manufacture the ridge side tread.

In addition, since the prior art R / D sidewall needs to be enlarged to further increase the size of the tappet for embedding the ridge side as the volume increases, there is a problem that the construction of the ridge side is difficult and the construction period is increased.

Korean Patent Registration No. 10-1239369 (Feb.

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made to solve the above problems, and it is an object of the present invention to provide a method and apparatus for efficiently discharging submerged infiltration water flowing downward from an upper part of a ridge to prevent scouring caused by submerged infiltration water, Shaped opening capable of preventing breakage of the slope and collapse of the slope.

It is also an object of the present invention to provide a ridge-like cross-section having a mesh-like opening for allowing quick and easy installation of a ridge-side cross-section.

According to an aspect of the present invention, there is provided a roof structure including a body including a bottom portion embedded in a slope of a ridge and a sidewall extending from a side of the bottom of the bottom portion toward a bottom of the ridge, And a filter portion provided on an outer surface of the frame and forming a gap smaller than the mesh of the opening portion, the filter portion being provided on the outer side of the frame, And a crushing portion provided on the outer surface of the filter portion and filled with rubble.

Here, the bottom portion and the side wall portion are preferably integrally formed by concrete curing.

In addition, the frame, the filter unit, and the crushing unit are preferably positioned on the upper surface of the other side of the bottom.

It is preferable that a recessed groove is formed on the upper surface of the other side of the bottom portion, and a lower end of the frame is inserted into the recessed groove.

The opening is preferably extended along the longitudinal direction of the frame.

In addition, it is preferable that a plurality of openings formed in the frame are formed at regular intervals.

Further, it is preferable that the openings are arranged in a plurality of rows along the longitudinal direction of the frame.

Preferably, the openings are arranged in a zigzag shape along the longitudinal direction of the frame.

In addition, the body and the frame are preferably formed of unit blocks.

At this time, it is preferable that slots are formed at both sides of the body made of the unit block and protrusions connected to the slots are assembled to both sides of the frame.

In addition, it is preferable that no opening is formed in any one of the frames assembled with the unit block.

The cover may further include a cover provided on an upper portion of the body to connect the side wall portion and the upper portion of the frame, wherein the cover is formed with a mesh-shaped opening.

It is preferable that the size of the mesh formed in the opening of the frame is larger than the gap of the filter portion and smaller than the gap of the crushing portion.

Further, it is preferable that a horizontal beam connecting the inner upper portion of the frame and the inner upper portion of the side wall portion horizontally is provided.

According to another aspect of the present invention, there is provided a method of manufacturing a treadmill, comprising: a tearing step of tearing a pit so that a body is embedded in a slope of a ridge; and a step of moving the sidewall of the body A frame installing step of installing a frame on the other side of a bottom portion opposed to the sidewall portion after the body placing step, and placing a filter portion on the outer surface of the frame after the frame installing step, A crushing portion filling the crushed stone portion between the outer surface of the filter portion and the crushing portion opposed to the frame after the installation of the filter portion; And a back fill step of filling and filling the periphery with the filler. It is achieved by the construction method of the gutter tile.

According to the present invention, since the underground infiltration water flowing down from the upper part of the ridge has a structure that flows directly into the inside of the body through the crushing part, the filter part and the opening of the frame, The water can be drained quickly and smoothly.

Therefore, if the submerged water is quickly drained, the submerged water will not remain in the lower part of the ridge so that the submergence phenomenon can be prevented, and the ground on which the ridge is installed is stabilized, preventing the breakage of the ridge and the collapse of the ground can do.

In addition, since the body and the frame for forming the ridge line are formed as unit blocks, it is easy to carry the body and the frame to the ridgeline, and the body and the frame made of the unit block are assembled by the fitting method, It is possible to shorten the time period for constructing the ridge.

1 is a cross-sectional view showing a general ridgeline side view.
FIG. 2 is a perspective view showing a ridge-side view formed with the mesh-type opening according to the present invention.
Fig. 3 is an exploded perspective view showing a ridge-side view of the mesh-like opening of the present invention.
FIG. 4 is a cross-sectional view showing a ridge-side view formed with a mesh-like opening according to the present invention.
5 is a perspective view showing another embodiment of a ridge-side view formed with a mesh-like opening according to the present invention.
6 is a perspective view showing another embodiment of a ridge-side view having a mesh-like opening formed therein according to the present invention.
FIG. 7 is a flowchart illustrating a method of constructing a ridge-side view having a mesh-like opening according to the present invention.

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings and the inventor may properly define the concept of the term to describe its invention in the best possible way And should be construed in accordance with the principles and meanings and concepts consistent with the technical idea of the present invention.

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

FIG. 2 is a perspective view showing a ridge-shaped side opening formed with a mesh-like opening according to the present invention, FIG. 3 is an exploded perspective view showing a ridge side view of the present invention, and FIG. 4 is a sectional view showing a ridge side view according to the present invention .

The side wall 120 formed with the bottom portion 110 and the side wall portion 120 includes a body 100 disposed such that the side wall portion 120 is directed downwardly of the ridgeline, A frame 200 formed on the bottom portion 110 facing the side wall portion 120 and having a mesh-like opening 210 formed therein; a frame 200 provided on the outside of the frame 200, And a crushing part 400 provided on the outside of the filter part 300 to fill the rubble and form an air gap. The crushed part 400, which is impregnated into the ground of the ridge, The ground penetrating water flowing down toward the body 100 is quickly guided to the interior of the body 100 to smooth the drainage, thereby preventing the scour phenomenon occurring in the lower portion of the body 100, And the collapse of the ground.

The body 100 embedded in the slope of the ridge is composed of a bottom portion 110 and a side wall portion 120. The bottom portion 110 is embedded in a slope of a ridge, And extends from one side of the side surface of the bottom portion 110 toward the bottom of the ridge.

The body 100 has a substantially "cross-sectional" shape as shown in the figure. The side wall part 120 extending from one side of the bottom part 110 to the ground surface may be vertically formed at one side of the bottom part 110 but may be inclined toward the outside of the bottom part 110 .

When the side wall part 120 is formed so as to be inclined outward from one side of the bottom part 110, the flow amount of the body 100 can be increased per unit area, and the flow rate of the surface water and the submerged infiltration water It is possible to prevent the surface water or the submerged inflow water flowing over the sidewall portion 120 from flowing to the bottom of the ridgeline.

The bottom part 110 and the side wall part 120 may be integrally formed with the body part 100 as shown in the drawing. When the bottom part 110 and the side wall part 120 are integrally formed, It is preferable that the side wall part 110 and the side wall part 120 are integrally formed by concrete curing.

That is, when the bottom portion 110 and the side wall portion 120 are integrally formed by the concrete curing, no gap is generated between the bottom portion 110 and the side wall portion 120, It is possible to prevent the infiltration of underground water from flowing out to the outside from the body 100 and to prevent the pressure applied to the body 100 by a considerable self weight of the body 100 made of concrete Or the force that the soil that is washed down with the water pushes on the body).

On the other hand, a frame 200 is formed on the bottom portion 110 facing the side wall portion 120. The frame 200 is provided at a position facing the upper portion of the ridge of the bottom portion 110 of the body 100 and the height of the side wall portion is set so that the height of the top surface of the frame 200 and the ground surface of the ridge- So that the surface water flowing down along the ground surface of the mountain slope slope can flow smoothly into the inside of the body 100.

The frame 200 may be formed to be symmetrical with the side wall 120 formed on one side of the bottom 110 and may be vertically formed on the other side of the bottom 110, As shown in Fig. The frame 200 provided on the other side of the bottom part 110 may be made of a material which is cured by a single body or has the same physical properties as concrete.

In addition, a mesh-shaped opening 210 is formed in the frame 200, and the groundwater inflow flowing from the upper part of the ridge through the opening 210 flows into the body 100. The openings 210 formed in the frame 200 may be formed over the entire surface of the frame 200 as shown in the figure or may be formed at regular intervals along the length of the frame 200.

That is, when the opening 210 is formed in the frame 200 with a space therebetween, the space between the opening 210 and the opening 210 is blocked by the frame 200, 200) back surface can be firmly supported.

The openings 210 formed in the frame 200 may be formed in a row along the longitudinal direction of the frame 200. However, the openings 210 may be formed in a plurality of rows, It may be formed in the frame 200 so as to be arranged in a zigzag form. Preferably, such an arrangement of openings 210 is formed to match the portion where the underground penetrant water is sprayed.

On the inside of the opening 210, a wire mesh 212 repeatedly crossing to the left and right like a mesh network is provided to form a mesh, and the underground penetration water flows into the gap of the wire mesh 212.

On the other hand, a filter unit 300 is provided on the outer surface of the frame 200 to form a gap smaller than the mesh of the opening 210. When the groundwater infiltration water flows into the body 100 through the opening, the soil particles included in the groundwater infiltration water are filtered by the filter unit 300 to be absorbed into the body 100 100 to prevent them from entering.

For example, the filter unit 300 may be formed of a nonwoven fabric having fine voids formed thereon. The filter unit 300 may be made of any other material as long as it can pass only the underwater penetration water while shielding the soil particles from the nonwoven fabric.

When the filter unit 300 is provided on the outer surface of the frame 200, a penetration projection (not shown) penetrating the filter unit 300 is formed on the outer surface of the frame 200 to prevent the filter unit 300 from moving. A coupling hole (not shown) is formed on the outer surface of the frame 200 so as to have the same axis as that of the through hole, So that the fastening member such as a bolt is fastened to the fastening hole of the frame and the through hole of the filter unit 300 so that the filter unit 300 is not moved.

The crushing part 400 filled with rubble is provided on the outer surface of the filter part 300. The crushed stone part 400 is composed of crushed stones having various shapes and particle sizes to form a gap between the stone and the stone. Therefore, the ground penetrating water flowing down from the upper surface of the ridge to the body 100 passes through the crushing part 400, and foreign matter larger than the gap formed between the stone and the stone is filtered by the crushing part 400.

Although the crushed stone 400 may be formed by filling crushed stones on the buried surface facing the filter 300 and the filter 300 as shown in FIG. 4, in some cases, A plurality of crushing parts 400 contained in the storage unit may be filled in the buried surface facing the filter unit 300 and the filter unit 300 .

When the crushed stones are contained in the storage means to form the crushed stone portion 400, the crushed stone portion is easily transported and the crushed stone portion 400 contained in the storage means is installed on the outer surface of the filter portion 300 It is possible to prevent the stone crushing unit 400 from being washed out by collecting the crushed stone in the surface water or the submerged water falling down from the upper part of the ridge to the meteorological change such as heavy rainfall.

When the frame 200, the filter unit 300, and the crushing unit 400 are positioned on the other side of the bottom part 110 of the body 100 as described above, the other side of the bottom part 110 is located outside the ridge And the frame 200, the filter unit 300, and the crushing unit 400 are placed on the upper surface of the other side of the extended bottom 110.

When the frame 200, the filter unit 300, and the crushing unit 400 are placed on the other upper surface of the floor 110, the frame 200, the filter unit 300, and the crushing unit 400 are watertight, So that it is guided to the other side of the extended bottom portion 110 and smoothly flows into the inside of the body 100 to thereby prevent the body 100 from being damaged. It is possible to prevent the occurrence of the scour phenomenon in the lower part of the casing.

In particular, the upper surface of the extended portion 110 is provided with a recessed groove 112 on the upper surface of the other side of the bottom portion 110 to stably support the frame 200 when the frame 200 is laid on the upper surface, The lower end of the frame 200 is inserted and fixed to the recessed groove 112.

When the lower end of the frame 200 is inserted into the recessed groove 112 formed on the upper surface of the other side of the bottom part 110 as described above, pressure is applied to the inside of the body 100 from the outer side of the frame 200 The frame 200 is not pushed into the body 100.

On the other hand, the body 100 and the frame 200 embedded in the slope of the ridgeline may be formed to have a continuous length, but in some cases, they may be manufactured as a unit block and assembled. This will be described with reference to FIG.

5 is a perspective view showing another embodiment of a ridge-side view formed with a mesh-like opening according to the present invention. Referring to the drawings, the body 100 and the frame 200 according to another embodiment are formed of a plurality of unit blocks having a predetermined length. When the body 100 and the frame 200 are formed as a plurality of unit blocks, not only the body 100 and the frame 200 are easily transported, but also the length of the ridge can be easily adjusted according to the terrain to which the ridge- .

Particularly, the body 100 formed of unit blocks and the projections 104 and 204 connected to the slots 102 and 202 are formed at both side ends of the frame 200, respectively, The slots 102 and 202 and the protrusions 104 and 204 are assembled in a fitting manner.

5, slots 202 are formed on both sides of one frame 200 formed as a unit block, and another frame (slot) 202 facing the side of the frame 200 on which the slot 202 is formed The length of the body 100 and the length of the frame 200 can be adjusted in accordance with the interval in which the ridges are to be installed by assembling the slots 202 and the protrusions 204 by fitting the protrusions 204. [ .

The body 100 and the frame 200 formed of such unit blocks may have various lengths, for example, 1 m, 1.5 m, and 2 m. In some cases, the body 100 and the frame 200 formed as a unit block may be bent in a plane or formed in an oblique shape so that a drainage pattern may be formed in accordance with the topography on which the ridge-side edge is to be constructed.

A frame 200 provided at the other side of the bottom portion 110 of the body 100 is divided into a frame 200 in which the opening 210 is formed and a frame 200 in which the opening 210 is not formed, (200) may be combined so as to be adapted to the characteristics of the terrain on which the ridge side girder is to be installed.

5, the frame 200 in which the opening 210 is formed and the frame 200 in which the opening 210 is not formed are alternately disposed on the other side of the bottom portion 110 of the body 100 Or may be provided on the other side of the bottom portion 110 of the body 100 so that the frame 200 in which the opening portions 210 are formed is continuously positioned.

Accordingly, in a region where the inflow water of the ground penetrating water is large, the frame 200 having the opening 210 formed therein is continuously positioned to smoothly drain the infiltration water, The frame 200 in which the opening 210 is not formed is positioned so as to prevent the surface water introduced into the body 100 from flowing out to the outside.

6, a cover 500 may be provided to cover the upper portion of the body 100 to prevent foreign matter from entering through the upper portion of the body 100. [ That is, the cover 500 is of a flat plate type having a width and a length connecting the side wall portion 120 of the body 100 and the upper portion of the frame 200. The cover 500 is formed with a mesh-shaped opening 510 through which the rainwater flows into the body 100 or the surface water flows into the body 100 .

On the other hand, a method of constructing a mountain-rim portion having the above-described structure will be described with reference to Fig. FIG. 7 is a flowchart illustrating a method of constructing a ridge-side view having a mesh-like opening according to the present invention.

In order to smoothly discharge surface water and underground water flowing down from a slope of a mountain ridge to prevent landslides and the like, a trench is firstly disposed at a proper position of the slope of the ridge so that the body 100 is buried. Step S100 is performed.

At this time, the pit is formed to have a depth such that the upper end of the side wall part 120 of the body 100 and the upper end of the frame 200 can be the same or similar height as the ground surface of the ridge slope, do. In some cases, the bottom of the pit in which the body 100 is placed is tightened, and the body 100 is placed in the bottom of the pit.

After the trenching step S100, a body setting step S200 is performed in which the body 100 is placed in the cavity so that the side wall 120 of the body 100 is directed downward of the ridgeline. After the body setting step S200, a frame mounting step S300 for mounting the frame 200 on the other side of the bottom part 110 facing the side wall part 120 is performed.

At this time, in the frame mounting step S300, the lower end of the frame 200 is fixed to the uneven groove 112 formed on the other side of the upper surface of the bottom portion 110 of the body 100 to support the frame 200 do.

After the frame 200 is installed facing the buried surface of the cavity, the filter unit 300 is installed on the outer surface of the frame 200. At this time, So that a gap is not generated between the filter unit 300 and the frame 200.

When the filter unit 300 is in close contact with the outer surface of the frame 200 as described above, the filter unit 300 is closely attached to the opening formed in the frame 200, The soil particles contained in the groundwater infiltration water flowing into the opening 210 from the filter unit 300 are filtered by the filter unit 300.

After the filter installation step S400 is performed, a crushing part filling step (step S500) of filling crushed stone or gravel with various shapes and particle sizes between the outer surface of the filter part 300 and the buried surface of the pit, .

The frame installation step S300 and the filter installation step S400 are performed so that the frame 200, the filter unit 300, and the crushing unit 400 are provided on the other side of the bottom part 110 of the body 100 housed in the pit. ) System and crushed stone filling step S500 is performed, a waterway for flowing infiltration water from the upper part of the ridge to the inside of the body 100 is formed.

At this time, the cavity of the crushing part 400 is formed smaller than the cavity of the filter part 300, and the size of the mesh formed in the opening part 210 of the frame 200 is formed larger than that of the filter part 300, Foreign matter larger than the gap of the crushing part 400 contained in the ground penetrating water flowing down from the upper part of the ridge toward the body 100 is filtered by the crushing part 400 and the soil particles carried together with the ground penetrating water So that only the infiltration of the ground penetrates into the inside of the body 100 after being filtered by the filter unit 300.

After the crushing part filling step (S500) is performed, the backfilling step (S600) is performed to fill the vicinity of the body (100) placed in the pit with the landfill to complete the construction of the ridge side.

According to the present invention, since the ground penetrating water flowing down from the upper part of the ridge can be quickly and smoothly introduced into the inside of the body 100 and drained, it is possible to prevent scouring due to underground penetration water .

In this way, when the scour phenomenon is prevented, the ground surface of the ridge can stabilize the ground on which the construction is carried out, and thus, the ridge of the ridge can be broken or the ground on which the ridge side is constructed can be prevented from collapsing.

In addition, the body 100 and the frame 200, which form the ridge side view, are manufactured as a unit block and are easy to carry the body 100 and the frame 200 to the ridgeline, Since the frame 200 is assembled by the fitting method, it can be easily installed and thus the period of time for constructing the ridge side can be shortened.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. .

For example, in the above description, the frame 200, the filter unit 300, and the crushing unit 400 are constructed after the manufactured body 100 is placed in a pit. However, in some cases, It may be possible to form a pit through a trencher, form a form in the pit thus formed, and to make the body through concrete curing.

In some cases, a beam connecting horizontally the frame and the side wall part 120 is provided to reinforce the frame 200 so as to prevent the frame 200 from being pushed by the side wall part 120, .

For this, a horizontal beam connecting horizontally the frame 200 and the side wall part 120 is formed on the inner side of the frame 200 and the inner side of the side wall part 120. The horizontal bobbin may have a circular or polygonal cross section and flanges may be formed at both ends of the horizontal bobbin to be fixed to the inner side of the frame 200 and the side wall 120 by bolts.

In some cases, a support hole into which the end of the horizontal beam is inserted is formed in the inner side of the frame 200 and the inner side of the side wall part 120, and a horizontal beam is inserted into the support hole, 120).

When a horizontal beam connecting horizontally the frame 200 and the side wall 120 is formed as described above, when a pressure is applied from the outer side of the frame 200 toward the side wall 120, As shown in FIG.

100: Body 102: Slot of body
104: protrusion of the body 110:
112: recessed groove 120: side wall portion
200: frame 202: slot of frame
204: protrusion of the frame 210: opening
212: wire mesh 300: filter part
400: Crushing section 500: Cover

Claims (3)

And a sidewall portion extending from the one side of the side of the bottom portion toward the bottom of the ridge, the bottom portion and the sidewall portion being integrally formed by concrete curing, and the sidewall portion A body having a concavo-convex groove formed on the upper surface of the other side of the opposed bottom portion;
A frame having a lower end inserted into the recessed groove of the bottom portion and extending upward toward the ground surface and having a mesh-shaped opening formed through a wire mesh repeatedly crossing left and right in a mesh structure at a central portion;
A filter portion formed on an outer surface of the frame to form a gap smaller than the mesh of the opening portion;
A crushing portion provided on an outer surface of the filter portion facing the frame and formed in a shape of a ridge filled with rubble; And
And a cover provided at an upper portion of the body to connect the side wall portion and the upper portion of the frame and having a mesh-shaped opening formed at the center portion thereof,
Wherein the frame, the filter portion, and the crushing portion are placed on the upper surface of the other side of the bottom portion,
A through-hole protruding from the filter unit and coupled to the filter unit is formed on the outer surface of the frame so that the filter unit does not move,
And a horizontal hole for horizontally connecting an upper portion of the inner side of the frame and an upper portion of the inner side of the side wall portion is provided, and a support hole for inserting the end of the horizontal beam is formed in each of the inner side of the frame and the side wall portion,
The body and the frame are each formed as a unit block. The body and the frame each include a unit block, and a slot and a protrusion coupled to the slot are formed at both side ends of the body and the frame,
Wherein a plurality of frames each composed of a unit block are arranged in such a manner that a frame in which the openings are formed and a frame in which the openings are not formed are arranged in combination with each other and one of them is selectively arranged according to inflow amounts of ground penetration water and surface water. Ridges with openings.
The method according to claim 1,
Wherein a plurality of openings formed in the frame are formed at regular intervals.
The method according to claim 1,
Wherein the mesh formed in the opening of the frame is larger than the gap of the filter portion and smaller than the gap of the crushing portion.

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