KR20190034001A - Drain pipe assembled sand pit for preventing back flow sand, and method for constructing the same - Google Patents

Abstract

The present invention relates to a sand pit-integrated drainpipe for preventing the backflow of sand and a construction method for the same. The purpose of the present invention is to maintain the inside of a drainpipe clean and prevent a drainpipe from being damaged due to freezing in the winter season. Moreover, the purpose of the present invention is to effectively block sand to prevent the sand from penetrating a drainage system. According to the present invention, the sand pit-integrated drainpipe for preventing the backflow of sand includes: a drainpipe main body (1) connected to a catch basin embedded in a slab of a bridge and inducing drainage of water on a road by being connected to a drain; and a sand pit (20) inserted into the drainpipe main body to be withdrawn and collecting foreign substances including sand flowing into the drainpipe main body. The drainpipe main body includes a water collection unit (11), a main drain unit (12), a sand pit accommodating unit (14), and a sand blocking unit.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a sand trap,

More particularly, the present invention relates to a sand drainage drainage pipe, more particularly to a sand drainage drainage pipe which is capable of quickly treating a nonpoint source (road surface water, etc.) flowing through a catchment on a road surface of a bridge, cleaning and maintaining the inside of the drainage pipe, To prevent the pipe from being broken and to effectively prevent the sand from penetrating into the drainage system, and to a construction method of the same.

Generally, bridges are bridge bridges, steel bridges installed in the longitudinal direction of bridges at the bottom of the bridge, steel bridges, shoe bridges connecting bridges, bridges, And a top plate.

The slab of the bridge is equipped with a drainage facility for discharging the stormwater, which is a non-point pollution source including rainwater, road surface cleaning water and various pollutants generated from the road surface, to the lower part of the bridge.

The drainage facility includes a plurality of collection ports for collecting road surface water from the road surface of the bridge slab, a drain pipe connected to the collection port, sand contained in the drainage pipe (meaning sand and foreign matter) And a drain pipe connected to the drain pipes and collecting and draining the road surface water drained through the drain pipe.

Conventionally, a drain pipe is formed in a cross shape, and an upper collecting part is connected to the collecting part, and a pocket part protruding to a bottom part accommodates the sandbag, and drain parts on both right and left sides are connected to the drain pipe.

Since the conventional drainage pipe constructed as described above is a structure in which the sandbag is housed to filter the sand and then pure water is guided and drained, and the pocket portion in which the sandbag is housed is connected to the drain portion on both sides (or one side in the viewpoint portion) There is a problem that water flowing into the pockets of the water flowing into the pockets causes the water to accumulate in the pockets where the sandbars are received and the water is rotten, resulting in a bad odor. To solve these problems, frequent cleaning work is required.

In addition, there is a problem that the water in the pocket portion is frozen in the winter season and the drain pipe is inflated and broken, and the sand bar is fixed to the inside of the drain pipe by freezing and can not be drawn out to the outside, .

In order to solve the above-mentioned problem, the patent document (Patent No. 10-1535668) is patented by the present applicant, and is connected to a catching hole embedded in a slab of a bridge and connected to a drain pipe to induce drainage of road surface water A drain pipe body; A drain pipe body inserted into the drain pipe body so as to be drawn out to the outside and collecting foreign matter including sand introduced into the drain pipe body, A main drain part connected to the drain pipe, and a sand receiving part integrally formed between the collecting part and the main drain part and accommodating the sand receiving part, wherein the main drain part has one side connected to the sand receiving part And the drain pipe is connected to the bottom of the sand receiving compartment and is connected to the drain pipe at a position higher than the upper inlet of the sandbag, So that the number of roads passing through the catching port is rapidly guided to the drain pipe through the main drain portion. Since water does not accumulate in the sandbars and sandbars, it minimizes the occurrence of bad odors caused by water corruption, and induces water to be infiltrated into the sandbag compartments to induce drainage of all the water flowing into the drainpipes. In addition, there is no freezing of water in winter due to the lack of water, thus preventing breakage (including cracking) of the drainage pipe due to freezing of water and fixing of the sand bar due to water freezing. There is a disadvantage in that the sand flows back to the main drain when the sand is overflowed from the sand receiving compartment to the main drain when the sand is dropped from the catch to the catch, There is a disadvantage in that a great effect is not obtained in preventing backflow of the exhaust gas.

Patent No. 10-1535668

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a water- The present invention aims at providing a sand backflow prevention sand drainage pipe and a construction method for preventing sand backing and preventing clogging of sand back to the drainage system.

The present invention relates to a sand drainage integrated drain pipe of the present invention, comprising: a drain pipe main body connected to a drain pipe embedded in a slab of a bridge and connected to a drain pipe to guide drainage of road surface water; A drain pipe body inserted into the drain pipe body so as to be drawn out to the outside and collecting foreign matter including sand introduced into the drain pipe body, A main drain part connected to the drain pipe, a sand receiving part integrally formed between the collecting part and the main drain part, the sand receiving part being housed in the overflow hole between the collecting part and the main drain part, Wherein the main drain part is connected to the collecting part at a position higher than the upper inlet of the sand receiving part accommodated in the sand receiving part, Is connected to the bottom portion of the sand receiving compartment and the other side is connected to the drain pipe, And the blocking portion is one of an upper sand blocking portion formed in the overflow hole between the collecting portion and the main drain portion to block the sand, a combination type of the lower sand blocking portion and the upper and lower sand blocking portions, and a meshed sand blocking portion .

The present invention includes a bottom drain portion for guiding water inside the sandbag housing portion to the main drain portion, the drain portion, and one or more of the outside.

According to the sand backflow prevention type sand drainage pipe and the construction method of the present invention, the drain pipe is provided independently of the drain pipe on the upstream side, and the number of roads passing through the catching port is quickly guided to the drain pipe through the main drain, Since water does not accumulate in the sandbars and sandbars, it minimizes the odor caused by water corruption, and induces water to be infiltrated into the sandbag compartment, thereby maximizing the odor reduction effect by inducing drainage In addition, there is no freezing of water in winter due to the lack of water, thus preventing breakage (cracking) of the drain pipe due to freezing of water and preventing adhesion of the sand bar due to water freezing. And the structural characteristics of the sand blocking portion The structure that prevents the reverse flow of sand from the bottom of the overflow hole, the hinge structure, and the net structure), the sand flows back and forth both when the sand falls and when it bounces. Thereby effectively preventing the clogging of the drainage system (drain pipe and the like) due to backflow of the sand.

In addition, since the sand bar is connected to the grating of the catcher to separate the grating, and then the connecting wire is wound up, the sand bar can be taken out to the ground of the bridge slab.

1 is a cross-sectional view showing an upper sand blocking portion according to Embodiment 1 applied to a sand backing integrated drain pipe according to the present invention.
2 is an exploded perspective view showing a manufacturing process of the upper side sand blocking portion according to the first embodiment;
3 is a view showing a modification of the upper side sand blocking portion according to the first embodiment;
FIG. 4 is a sectional view showing a sand blocking unit according to a second embodiment of the present invention, which is applied to a sand trap-integrated drainage pipe according to the present invention. FIG.
FIG. 5 is an exploded perspective view showing a manufacturing process of a lower side sand blocking part according to a second embodiment applied to the sand backing integrated drain pipe according to the present invention. FIG.
FIG. 6 is a cross-sectional view showing a top and bottom side sand blocking unit according to a third embodiment applied to the sand trap-integrated drain pipe according to the present invention. FIG.
FIG. 7 is a cross-sectional view showing a hinge-type sand blocking member according to a fourth embodiment applied to a sand trap-integrated drain pipe according to the present invention. FIG.
FIG. 8 is an exploded perspective view of the sand backing integrated drain pipe according to the present invention. FIG.
FIG. 9 is a perspective view showing an example in which a sidewall pipe is applied to the sand backing integrated drain pipe according to the present invention. FIG.
10 and 11 are a perspective view and a cross-sectional view, respectively, of a bottom side drain portion applied to the sand back drainage pipe according to the present invention.
FIG. 12 is a view showing a catching port applied to a sand trap integrated drainage pipe according to the present invention. FIG.

In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions of the present invention, and these may be changed according to the intention of the user, the operator, or the like. Therefore, the definition should be based on the contents throughout this specification.

1, the sand backflow prevention sand drainage pipe 100 according to the present invention is connected to the drainage port 1 on the road surface side and to the drainage pipe 2 of the drainage system, And a sand bar 20 which is accommodated in the drain pipe main body 10 so as to be drawn out to the outside so as to sand the sand that is collected in the drain pipe main body 10 and is connected to a water collecting part 11 of the drain pipe main body 10, And sand does not flow back to the main drain part 12 connected to the collecting part 11.

The sand blocking portion is formed on the upper portion of the overflow hole 13 (the hole through which the water collecting portion 11 and the main flow portion 12 are connected) to prevent the sand falling from the catching port 1 from flowing backward, The sand portion 20 is formed at the lower portion of the overflow hole and is sandwiched between the sand and the sand receiving portion 20, A combination of the upper sand blocking portion 30 and the lower sand blocking portion 40 (Example 3), the hinged sand blocking portion 50, and the mesh sand blocking portion Do.

≪ Example 1 >

1, the upper side sand blocking portion 30 according to the present embodiment is formed in a curved shape and is disposed on the upper side of the overflow hole 13, and sand falling along the catch portion 11 is sandwiched between the overflow holes 13 To prevent backflow of the sand, and includes a curved guiding portion 31. The curved guiding portion 31 has a curved guiding portion 31, Providing a space at the bottom of the upper side sand blocking portion 30 is for the purpose of quick drain of excellent.

The upper side sand blocking portion 30 is capable of various examples in which the sand falling from the catch portion 11 to the sand receiver 20 is prevented from flowing back to the overflow hole 13, An overflow hole 13 is formed in the collecting part 11 and the open end of the main drain part 12 is fixed to the collecting part 11 by welding or the like so that the collecting part 11, The diameter of the inlet side end of the main drain part 12 is made larger than the diameter of the overflow hole 13 so that the upper side sand blocking part 30 is connected to the main drain part 12, And the curved guiding portion 31 is formed by pushing a part or the whole of the upper side sand blocking portion 30 to the inside of the catching portion 11. [ At this time, both sides of the upper sand blocking portion 30, or both the right and left sides, and between the left and right sand blocking portions 30 are cut so that the curved guide portion 31 can be pushed.

The upper side sand blocking portion 30 may be formed entirely of the curved guiding portion 31 or may be composed of a straight portion and a curved guiding portion 31 together.

Since the upper side sand blocking portion 30 of this type uses a structure of the water collecting portion 11, it is unnecessary to fix it separately, and there is an effect of preventing the water from leaking from the fixing portion.

That is, the upper sand blocking portion 30 is formed separately from the water collecting portion 11 and is fixed (welded, pebbled, etc.) to the water collecting portion 11 or the main drain portion 12.

The curved guiding portion 31 guides the sand falling by using its own curvature to the opposite side of the overflow hole 13. The curved guiding portion 31 guides the sand to the side of the overflow hole 13 without bending the upper sand blocking portion 30, It is also possible to attach a separate guide strip 32, as shown in Fig.

That is, the upper sand blocking portion 30 is formed as a straight line in the vertical direction as a whole, and an induction band 32 is attached to a surface facing the water collecting portion 11 to sandwich the upper sand blocking portion 30 with a collecting portion 11), thereby guiding the sand to the opposite side of the overflow hole (13).

The guide strip 32 can have various shapes such as a semicircular shape, a triangular shape, a circular shape, etc., for guiding sand to the opposite side of the overflow hole 13.

According to the present embodiment, the road surface and sand of the bridge road surface are introduced into the collecting part 11 of the drain pipe 100 of the present invention through the catching port 1 and fall toward the sand trap 20, When the sand falls into the main drain portion 12 through the overflow hole 13 without being accommodated in the sandbag 20, the sand is guided to the curved guiding portion 31 (32) and is collected in the sand bar (20).

≪ Example 2 >

4, the lower sand block 40 according to the present embodiment is sandwiched between the overflow hole 13 and the overflow hole 13, 13 to prevent the sand from overflowing. In order to cut off the sand, the main drain part 12 is formed in such a manner that the bottom part of the overflow hole 13 is preferably sloped, 12 as a shape of a wall inclined upwardly, and the free end thereof is spaced apart from the inner surface of the main drain portion 12 to form a space for the overflow of the storm.

5, the lower side sand blocking portion 40 is formed by, for example, a method of pressing the inlet side end portion of the main drain portion 12 toward the main drain portion 12 in a manner integrated with the main drain portion 12 . At this time, the upper and lower sand cut-off portions 40 are cut so that they can be bent.

The lower sand blocking portion 40 may be formed on the water collecting portion 11 in a reverse manner.

The lower sand blocking portion 40 may be manufactured as a single piece and then fixed to the collecting portion 11 or the main drain portion 12 by welding or the like.

In the figure, a space exists between the free end of the lower sand cut-off portion 40 and the inner surface of the main drain portion 12 in order to allow the drain to be quickly drained.

In addition, the lower side sand blocking portion 40 is not limited to a plate material, and may be of a net shape having fine holes through which water can pass while sand can not pass through.

According to the present embodiment, the sand that has passed through the catching port 1 and falls into the sand bar 20 at the lower part collides with the lower sand blocking part 40 and then is repelled toward the opposite side of the overflow hole 13, The sand bouncing in the sand bar 20 is guided into the sand bar 20 by the inclination of the lower sand bar barrier 40 without exceeding the lower side sand barrier part 40.

≪ Example 3 >

As shown in FIG. 6, the sand blocking portion according to the present embodiment is an upper-lower-side combined type in which the upper-side sand blocking portion 30 and the lower-side sand blocking portion 40 are applied together.

The upper side sand blocking portion 30 and the lower side sand blocking portion 40 have been described in detail in Embodiments 1 and 2 described above. In Embodiment 1, the upper side sand blocking portion 30 has an excellent drain In the second embodiment, a space is provided on the lower sand cut-off portion 40, so that there is a possibility that the sand flows back through the space. The present embodiment has an advantage of solving such a disadvantage.

<Example 4>

7 shows the hinged sand blocking portion 50. The hinged sand blocking portion 50 connects the upper end of the upper sand blocking portion 30 to the hinge portion 11 or the main drain portion 12 by a hinge Hinge) 51 as shown in Fig.

Since the upper side sand blocking portion 30 of the first embodiment protrudes inward of the catch portion 11, it may cause interference when the sand catch 20 is taken out or stored on the road surface, The blocking portion 50 is adjusted in angle through the hinge 51 and the curved guiding portion 52 (or guiding band) is normally disposed in the catching portion 11 by its own weight to block the back flow of the sand, And does not interfere with the reception and withdrawal of the sand bar 20 as shown by the imaginary lines in the drawing.

Although the hinge-type sand cut-off portion 50 is shown only on the upper side of the overflow hole 13 in FIG. 7, it is also possible to configure the lower sand cut-off portion of the second embodiment as a hinged sand cut- It is preferable that an elastic member is applied together to maintain the hinged sand blocking portion at a predetermined angle.

&Lt; Example 5 >

The sand cut-off portion according to the present embodiment is a mesh-type mesh having a small number of fine holes to block the back flow of the sand without interfering with the overflow of the storm, and is installed in the overflow hole 13.

Hereinafter, a drain pipe to which the sand blocking portion according to the present invention is applied will be described in detail.

As shown in FIGS. 1 and 8, the sand backflow prevention sand drainage pipe 100 is connected to a catch 1 buried in a slab of a bridge and connected to a drain pipe 2, A drain pipe main body 10 for introducing the water; And a sand bar 20 which is housed in the drain pipe main body 10 and collects foreign matter (hereinafter referred to as "sand") including sand contained in the road surface water.

The drain pipe main body 10 is made of SUS or the like and has a hollow inside as a whole and is open toward the top and is connected to the catch 1 in fluid communication so as to be in fluid communication with the water outlet pipe body 10, A sand receiving compartment 14 in which a bottom is closed and a sand trap 20 is accommodated therein and one side of the sand trap 14 is connected to the sand catch compartment 14 in fluid communication And the other end is composed of a main drain part 12 connected to the drain pipe 2.

The water collecting part 11 is connected to the pipe so as not to cause leakage of the road surface water flowing through the catching part 1. [

The sand receiving compartment 14 is preferably an integral type having the same diameter as that of the collecting part 11 such that the sand catch 20 is taken out to the road surface of the slab through the inside of the catching hole 1 of the catching and collecting hole 1 .

The main drain part 12 is connected to the collecting part 11 at a position higher than the upper inlet of the sand receiver 20 so that the road surface flowed through the collecting part 11 is naturally guided to the drain pipe 2, And is connected to the drain pipe 2 from below the sand receiving compartment 14 while being inclined downward toward the drain pipe 2.

The main drain part 12 is divided into a collecting part connecting part connected to the collecting part 11 and a drain pipe connecting part connected to the drain pipe 2.

It is preferable that the collecting portion connecting portion is formed of a sloped portion capable of both a fixed type of welding, a pipe fitting, and the like to the collecting portion 11.

The drain pipe connection part may be connected to the drain pipe 2 in a vertically connected manner or may be bent in an elbow shape and horizontally connected to the drain pipe 2 by extending downward in parallel with the water collecting part 11 at the connection part.

In the drain pipe main body 10 having such a configuration, only the main drain part 12 is connected to the periphery of the collecting part 11 and the drain pipe 2 is connected to the lower side of the main drain part 12 Therefore, the object of the present invention can be achieved by subjecting only the water flowing from the catching port (1) directly above without being affected by the water flowing from the upstream to the downstream along the drain pipe (2).

The sand bar 20 includes a sand bar body 21 formed of an elastic material and opened to the upper side, a bar bar 22 formed at the upper opening of the sand bar body 21, And the other end is constituted by a connecting wire 23 which is connected to a grating 3 detachably mounted on the catching port 1 and is lifted in the sand receiving compartment 13 when the grating 3 is separated.

The sand receiving body 21 is formed to have an outer diameter smaller than the inner diameter of the sand receiving storage part 14 so as to be openable toward the upper part and to be easily accommodated and drawn out. This gradually increasing enlarged lip 24 is formed integrally.

The roughened lip 24 is closely attached to the inner circumferential surface of the sand receiving compartment 14 by an elastic force to guide the road surface water and the sand into the sand receiving body 21.

The stiff lip 24 is formed to have an outer diameter larger than the inner diameter of the water collecting part 11 and is accommodated while being elastically deformed in the water collecting part 11 to prevent the sand from falling into the water collecting part 11. [

On the inner circumferential surface of the sandbag main body 21 or the magnified-gripper 24, a hook bar engaging groove for attaching the hook bar 22 is formed.

The hook bar 22 is integrally formed in a cross shape preferably inside a rim inserted into the hook bar engaging groove of the sand bar 20.

The lower end of the connecting wire 23 is fixed to the hooking bar 22 by a knot or the like and the upper part of the connecting wire 23 is connected to the grating 3 by a knot or the like so that when the grating 3 is lifted from the catching port 1, All materials and structures are possible which allow it to be separated from the drain pipe 10.

The sand bar 20 can be taken out and stored by using a separate tool without forming the connecting wire 23. For example, when a worker puts a tool such as a long rod on the road surface of a bridge to the sand bar 20 The sand bar 20 is hooked on the hook bar 22 of the sand barrel accommodating portion 14 or the sand bar 20 accommodated in the sand bar receiving portion 14 is taken out onto the road surface.

The drain pipe of the present invention can be applied to the drain pipe 15 as shown in Fig.

One end of the drain pipe 15 is connected to the main drain part 12, preferably a lower part of the inclined part which is a collecting part connecting part, i.e., a vertical part of the drain pipe connecting part, in fluid communication with the other side, The road surface water exceeding the capacity of the drainage system in the road surface passing through the pipe 12 is discharged to the river or the like.

The action of the sand backflow prevention type sand drainage pipe according to the present invention is as follows.

The initial clearance and the road surface water such as sand passing through the grating 3 of the catching device 1 are drained through the drainage pipe 11 and then drained through the drainage pipe 2. In this process, And the water flows into the main drain part 12 and then flows into the drain pipe 2 to be drained.

That is, the road surface where the sand is removed is guided to the drain pipe 2 through the main drain 12, so that only a small amount of water remains in the sand bar 20, so that no icing occurs in the drainage system. Minimizes odor.

When the sand collected in the sand bar 20 is collected, the grating 3 must be opened. When the grating 3 is separated from the catch 1, Is separated from the drainage pipe (100) and the catching part (1) of the present invention and drawn out to the ground. After the sand collected in the inside of the sand bar 20 is removed from the ground of the slab, the sand bar 20 is put into the inside of the catching hole 1 so that the sand bar 20 is seated in the inside of the sand bar receiving part 14, (3) to the catching hole (1).

In the case where the overflow pipe (15) is applied, when water having a capacity exceeding the capacity of the road surface passing through the main drain portion (12) flows into the drain pipe main body (10) (14).

In the meantime, the present invention can be configured as follows so that water is not accumulated on the bottom of the sand receiving compartment 13.

As shown in Figs. 9 and 10, the bottom-side drain portion 16 for draining the water also contained in the sand receiving compartment 14 is included.

One side of the bottom side drain portion 16 is connected to the bottom side of the sand receiving compartment 14 and the other side is connected to the main drain portion 12.

One side of the bottom side drain portion 16 is connected to a hole penetrating the bottom surface of the sand receipt receiving portion 14 in the vertical direction in the vertical direction and the other side of the bottom side drain portion 16 is connected to a peripheral surface close to the bottom of the sand receiving portion 14 And the other side thereof is connected to the main drain portion 12.

The bottom side drain portion 16 passes between the periphery of the sand bar 20 and the inner wall of the sand barrel accommodating portion 14 so that the water held in the sand bar receiving portion 14 flows into the main drain portion 12 Water is prevented from accumulating anywhere in the inside of the drain pipe main body 10, thereby effectively preventing freezing of winter water and minimizing the generation of odor.

The bottom side drain portion 16 is not limited to this but the other side may be opened like a drain pipe 15 so that water is drained in the atmosphere or connected to the drain pipe 15 to be led to the drain pipe 15, To directly lead to the drain pipe 2.

The bottom side drain portion 16 is not limited to the connection relationship shown in the figure but is formed in one piece in the sand receiving portion 14.

The bottom-side drain portion 16 is not limited to the sand cut-off portion shown in the drawing, but is applied together with all the sand cut-off portions described above.

Here, the sandbars 20 include one or more drain holes 25 so that the water introduced therein is drained without draining, thereby maximizing the utility and efficiency of the bottom-side drain portion 15.

The drain hole 25 is preferably of a size that does not discharge the sand and is applicable to the bottom or periphery of the sand bar 20.

The drainage hole 25 is formed in the drainage hole 26 so as to drain the water without discharging the sand through the drainage hole 25 and the drainage hole 26 is formed in the bottom or the bottom of the sandwich 20 or the drainage hole 25, .

According to this configuration, the road surface water flowing through the catching port 1 falls down toward the lower portion, the sand containing the road surface water is collected in the sand trap 20, and the water is discharged through the main drain port 12, (2).

On the other hand, the water introduced into the sand receiving compartment 14 through the periphery of the sand bar 20 and the water drained into the sand bar compartment 14 through the drain hole 25 of the sand bar 20, (Not shown).

Accordingly, water is not accumulated in the sand receiving compartment 14, and as a result, the drain pipe 100 is prevented from being broken due to freezing of water in the winter season, and the sand pipe 20 is taken out to the outside from the drain pipe 100 It is possible to treat the sand easily in the winter season and as a result, the occurrence of odor is minimized.

11, the catch 1 includes a catch main body 1a buried in the slab of the bridge and indirectly connected to the catch portion 11 directly or through the connection pipe 4, a peripheral portion of the catch main body 1a An indexing and inducing drainage plate 1b for guiding the road surface water penetrating along to the catching main body 1a and preventing the road surface water from penetrating downwardly of the slab, and a grating 3 mounted on the upper opening of the catching main body 1a do.

The connecting pipe 4 may have an enlarged portion that gradually increases in diameter toward the upper end portion. The above-mentioned bulging portion is a constitution for coupling with the catching main body 1a, of course, and is not necessarily constituted, and is selectively applicable as necessary.

The main body 1a of the water collecting body includes a box-shaped water collecting box opened to the upper side, for example, a rectangular shape when viewed in a plane, a tapered portion formed at a bottom portion of the water collecting box so as to have a gradually reduced sectional area, And a drain pipe connection part formed at the bottom of the taper part and connected to the connection pipe 4. [

The inlet hole 1c is for guiding the road surface water penetrating through the peripheral portion of the water collecting box (the gap between the water collecting box and the packing layer) into the water catching main body 1a, And the number is one or more, and it is formed in various shapes such as a circular shape.

The inlet hole 1c is also applicable to the collecting box and is formed at a lower position than the upper end of the index and induction drain plate 1b. If the inlet hole 1c is formed higher than the upper end of the index and induction drain plate 1b, This is because the road surface infiltrates into the slab through the inflow hole 1c.

The drain pipe connection part is formed in a tubular shape at the bottom of the tapered part and is connected to the connection pipe 4 so that the road surface water passing through the water collection box and the taper part is guided and drained to the connection pipe 4.

The inner circumferential surface of the drain pipe connecting portion is formed with an inner circumferential surface of the drain pipe connecting portion so as to be watertightly and firmly joined to the connecting portion of the drain pipe connecting portion and the connecting pipe 4 and the outer circumferential face of the connecting pipe 4 is pressed The pressing piece 1d can be formed.

For example, a plurality of pressing pieces 1d may be formed along the circumferential direction, and an inclined supporting step may be formed at an upper portion of the pressing piece 1d to support the extending portion of the connecting pipe 4 at the bottom thereof , And it is also possible to be configured to be capable of elastic behavior.

The main body 1a of the catching hole is formed by roughing the outer surface in contact with the slab, coating a resin layer, coating a rough surface of the resin layer with a resin layer (unsaturated polyester resin or the like) Sand is sandwiched to strengthen the coupling force between the main body 1a of the catching device and the slab.

The main body 1a of the catcher is preferably made of glass fiber reinforced plastics (GFRP), but other materials are also possible.

The index and induction drainage plate 1b is formed in a plate shape which is connected to the periphery of the catching main body 1a at a certain distance from the catching main body 1a at a predetermined distance so that the road surface water infiltrating the inside of the package layer and the slabs can not flow to the bottom, And an induction part for guiding the road surface water to the inflow hole 1c. The inflow hole 1c is formed with a through hole for inserting the catching main body 1a at the center thereof, And is coupled to the lower side.

And the index and induction drain plate 1b are integrally formed with the catching main body 1a.

The index and induction drain plate (1d) can be made of various materials such as GFRP, steel, aluminum, synthetic resin, and rubber.

The index and induction drain plate 1d are buried in the slab with a larger area than the catch main body 1a together with the induction drainage, thereby preventing the catch main body 1a from being released to the road surface.

In addition, one or more height adjustment sockets may be applied to detachably couple the grating 3 to the collection box of the collection body 1a.

The method of sand drainage pipe construction according to the present invention is divided into a new construction and a repair work.

First, a new construction method is to construct a sand trap integrated drainage pipe 100 together with a catchment 1 and a drainage pipe 2 at the time of construction of a bridge, and to install a formwork- install ?? The sand backflow prevention type sand drainage pipe 100 is connected to the catching port 1 and the drain pipe 2 is connected to the sand backflow prevention sand drainage pipe 100 in the sand backflow preventive slab placement- . In this case, the slab installation and paving processes are not limited to the construction in the above-mentioned order.

The method for repairing the sand drainage integrated drainage pipe according to the present invention is characterized in that the existing drainage pipe is demolished - the sand backflow prevention sand drainage pipe 100 of the present invention is connected to the drainage hole 1 buried in the slab And a connection process to the drain pipe 2.

1: Collector, 2: Drain tube
3: Grating,
10: drain pipe body, 11:
12: main drain portion, 13: overflow hole
14: sand receiving compartment, 15:
16: bottom side drain portion,
20: sand bar, 30: upper side sand blocking portion
31: Curved guiding portion, 32: Guiding strip
40: lower side sand blocking portion, 50: hinged sand blocking portion

Claims (11)

A drain pipe main body connected to the drain pipe embedded in the slab of the bridge and connected to the drain pipe to guide drainage of road surface water;
And a sandbag inserted into the drain pipe body so as to be drawn out to the outside and collecting foreign matter including sand introduced into the drain pipe body,
The drain pipe main body includes a collecting part connected to the collecting port, a main drain part connected to the drain pipe, a sand receiving compartment integrally formed between the collecting part and the main drain part, And a sand blocking portion formed in the overflow hole between the collecting portion and the main drain portion and blocking the reverse flow of the sand to the main drain portion, wherein the main drain portion is formed in the sand receiving portion And a drain pipe connected to the bottom of the sand receiving compartment and connected to the drain pipe at a position higher than the upper inlet,
The sand cut-off portion is formed in an overflow hole between the collecting portion and the main drain portion and is formed of a combination of an upper side sand blocking portion for blocking sand, a lower side sand blocking portion and upper and lower sand blocking portions, Wherein the sandbag is a sand drainage pipe.

[2] The apparatus according to claim 1, further comprising a bottom side drain portion for guiding water in the sandbag housing portion to one or more of the main drain portion, the drain portion, . The upper sand blocking portion may include a curved guiding portion or an induction band that is vertically arranged in an overflow hole between the collecting portion and the main drain portion and guiding the sand to the opposite direction It is characterized by sand backflow prevention type sand drainage pipe. [Claim 4] The sand backflow prevention integrated drain pipe according to claim 3, wherein the upper side sand blocking part is hinged to the collecting part or the main drain part. The sand backflow prevention type as set forth in claim 1 or 2, wherein the lower side sand blocking portion is formed to be inclined upward toward the main drain portion at the bottom of the overflow hole between the collecting portion and the main drain portion, Sand drainage pipe.

The sand retention type sand bar according to claim 1 or 2, wherein the mesh sand blocking portion is a mesh structure installed in an overflow hole between the collecting portion and the main drain portion, All drainage pipes. [4] The sand bar according to claim 1 or 2, wherein the sand bar includes a sand bar body formed of an elastic material and opening toward the upper part, and a hook bar formed at an upper opening of the sand bar body Drainage pipe to receive. [7] The sand retention type sandbag according to claim 7, wherein the one side of the hook bar is connected to the grating mounted on the catcher, and the other side of the hook is connected to the sand receiving compartment when the grating is separated. All drainage pipes. The drainage system according to any one of claims 1 to 3, further comprising a drain pipe connected to the main drain part in fluid communication with the main drain part and discharging the road surface water exceeding the capacity of the drainage drainage system passing through the main drain part to the river Sand backflow prevention type sand drainage pipe. The sand trap integrated drainage pipe according to claim 1 or 2, wherein the catching hole is embedded in the slab while being connected to the upper part of the drain pipe main body of the integrated sand pipe drainage pipe and collecting the road surface water from the road surface, An indexing and guiding drain plate formed at the periphery of the catching body and guiding the road surface water penetrating between the catching body and the slab into the catching body, Wherein the catching main body includes a box-shaped catchment box opened toward the upper portion, a tapered portion formed at a bottom portion of the catchment box such that the cross-sectional area thereof gradually decreases, and at least one of the tapered portion and the catching portion, And the outside of the water collecting box and the tapered portion A tapered portion or a water collecting box, and at least one inflow hole formed in a bottom portion of the tapered portion and indirectly connected to the drain pipe main body of the integrated sand pipe drainage pipe, Wherein the index and guiding drainage plate is coupled to the lower portion of the inlet hole of the catching main body so that the peripheral portion is spaced apart from the catching portion and the tapered portion to guide the road surface water to the inlet hole. Drain pipe with a single sand trap. The collecting part of the drain pipe main body of the sand backflow prevention type sand drainage pipe according to claim 1 is installed in a slab of a bridge and is connected to a bottom part of a catching part to which grating is installed so as to collect the road surface water flowing into the catching part A first step;
And a second step of joining the main drain part of the drain pipe main body of the sand backflow prevention type sand trap integrated drain pipe to the drain pipe installed along the slab of the bridge and draining the road surface water. A method of constructing a drainage pipe with a backflow prevention sand trap.

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