KR101088157B1 - separation-type culvert - Google Patents

Abstract

The present invention relates to a quadrilateral separation type culvert consisting of separated and assembled quadrilateral forms, forming a sheath tube that penetrates into the inner center, and forms a first upper / lower coupling jaw on one side and a side on the other side. A first upper / lower unit forming a fixing unit and upper and lower closed fusion bars; A second tube disposed between the first upper and lower units to form a sheath tube penetrating toward the inner center, and a second upper and lower engaging jaw corresponding to the first upper and lower engaging jaws on both sides; Upper and lower units; An epoxy concrete formed on the first and second upper and lower coupling jaws formed in the first and second upper and lower units; An upper / lower plate formed of a PC steel wire coupled to the sheath pipe formed on the first and second upper / lower units, the both sides of which are coupled to the side fixing unit of the first upper / lower unit by a post-tension method; The side plate formed in the upper and lower side closed stiffening reinforcing bars formed in the upper and lower closed fusion reinforcing bars formed on the first upper and lower units of the upper and lower plates; The freight cost can be reduced, and the air is shortened when each component is manufactured in the factory, and the strength of the self-weight and external force is increased by the PC steel wires of the upper and lower plates. In addition, it is easy to reduce costs and secure space, and the combination of the upper and lower plates and the side plates is solid, thereby providing a highly stable quadrilateral type culvert.

Culvert, separation, sheath tube

Description

Quadrilateral culverts {separation-type culvert}

The present invention relates to a quadrilateral separation type culvert that can be installed by separating the four sides, and more particularly, the four sides can be separated to reduce the freight cost required for transportation and transportation, and the air is shortened because each component is manufactured in the factory. Of course, the PC steel wires of the upper and lower plates increase the strength by self-weight and external force, so it is not necessary to form a column when installing the underground roadway, so it is easy to reduce costs and secure space, and also with upper / lower plates and side plates. It relates to a stable quadrilateral culvert with high bonding strength.

In general, culverts are frequently used for passageways and underground roadways.

Such culverts are generally formed by arranging the U-shaped culverts in the lateral direction and then combining the units, or separating the culverts up and down, and then assembling them in the field.

When the culvert is formed as a K letter, the freight cost is increased because it can only be carried by using a large truck in transportation, and the culvert form of the upper and lower parts is also the same as described above. There was a problem of poor construction due to poor construction.

In addition, it was difficult to apply in a space for securing lanes such as underground roadways, and even if applied, there was a problem in that a lot of construction costs and spaces had to be secured due to the formation of columns in the middle.

The quadrilateral separation culvert of the present invention for solving the above problems forms a sheath tube that penetrates into the inner center, and forms a first upper / lower coupling jaw including a fixing bar on one side and a side portion on the other side. A first upper / lower unit forming a fixing unit and upper and lower closed fusion bars; A second upper / lower unit disposed between the first upper / lower units to form a sheath tube penetrating toward the inner center, and both sides of the first upper / lower engaging jaw and a fixing bar corresponding to the fixing bar; A second upper / lower unit forming a lower coupling jaw; An epoxy concrete formed on the first and second upper and lower coupling jaws formed in the first and second upper and lower units; An upper / lower plate formed of a PC steel wire coupled to the sheath pipe formed on the first and second upper / lower units, the both sides of which are joined to the side fixing unit of the first upper / lower unit by a post-tension method; A side plate formed of an epoxy concrete formed on one side of the side closed stiffening reinforcing bar and forming a side closed stiffening reinforcing bar that is coupled to the upper and lower closed stiffening reinforcing bars formed on the first upper and lower units of the upper and lower plates; Longitudinal reinforcing bars formed between the upper and lower closed fusion anchoring bars formed on the first upper and lower units of the upper and lower plates and the side closed stiffening bars of the side plates, and the upper and lower closed fusion anchoring bars and the side closed stiffening bars and longitudinal directions. It is characterized by consisting of a binding line connecting the reinforcing bars.

PC steel wire formed by the pretension method is further formed on both inner side surfaces of the first and second upper and lower units of the upper and lower plates formed in the quadrilateral separation culvert according to the present invention.

The cross-sectional shape of the first and second upper / lower units of the upper / lower plate formed in the quadrilateral separation culvert of the present invention is characterized in that it is configured as an industrial shape.

The first locking jaw is further formed on one side of the first upper / lower unit of the upper / lower plate formed in the quadrilateral separation type culvert of the present invention, and the first locking jaw corresponds to both sides of the side closed fixing bars of the side plate. It characterized in that to further form a second locking step.

Upper / lower fixing holes connected to the upper / lower insertion holes and the upper / lower insertion holes on the surface of the upper / lower closed fusion reinforcing bars formed on the first upper / lower units of the upper / lower plate formed on the quadrilateral separation type culvert according to the present invention. Further formed, and the side insertion hole is further formed on the side of the side closed fusion reinforcing bar formed on the side plate, the upper and lower insertion holes and the tension member is coupled to the upper and lower unit of the upper and lower units The upper / lower plate and the side plate are fixed by pulling the tension member by using the upper / lower fixing unit formed in the lower insertion hole.

The quadrilateral separation culvert of the present invention can be transported in a state in which the upper and lower plates and side plates are separated, thereby reducing the convenience of transportation and the freight cost, and installing them on the site after transporting each component in the factory. Shortened air can reduce installation costs.

In addition, since the strength of the stress caused by the self-weight and external force of the upper and lower plates is increased by forming the PC steel wires coupled to the upper and lower plates in a tensioned state, it is easy to secure space by reducing the space in which the pillars are installed. In particular, there is no need to form a column when installed in the underground roadway can reduce the construction cost.

In addition, by forming the cross-sectional shape of the upper and lower plates in the shape of the engineer, it is possible to reduce the material cost, the freight cost by light weight, and the stress due to its own weight.

In addition, the combination of the upper / lower plate and the side plate is a useful invention that can secure the safety even after installation.

Hereinafter, the configuration of the present invention with reference to the accompanying drawings in more detail.

Example 1

First, as shown in FIGS. 1 to 3, the present invention includes an upper / lower plate 30 and a side plate 40.

The upper / lower plate 30 is composed of a first upper / lower unit 10 disposed on both sides and a second upper / lower unit 20 formed between the first upper / lower unit 10.

The first upper / lower unit 10 forms a sheath tube P formed through the inner center and a first upper / lower coupling jaw 11 including the fixing reinforcing bars 11-1 on one side thereof. The other side on which the first upper and lower coupling jaws 11 are formed is formed with side fixing holes 12 and upper and lower closed fixing bars 13.

In addition, the second upper / lower unit 20 may include a first upper / lower engaging jaw 11 and a fixing bar 11-1 of the first upper / lower unit 10 of the first upper / lower unit 10. And a second upper and lower coupling jaw 21 including a fixing bar 21-1 corresponding to the upper and lower fixing jaws 21-1.

That is, in the first embodiment of the present invention, the upper and lower plates 30 are configured to form a prestress by a post tensioning method.

In addition, PC steel wires (PCS) may be further formed on both inner side surfaces of the first and second upper and lower units 10 and 20 formed on the upper and lower plates 30 so as to form prestresses by the prism ten method. have.

In addition, the first and second upper and lower units 10 and 20 constituting the upper and lower plates 30 may be formed in a cross-sectional shape.

On the other hand, the side plate 40 is the upper and lower side fusion anchoring reinforcing bar (43) coupled to the upper and lower closed fusion reinforcing bars 13 formed on the first upper and lower units 10 of the upper and lower plates 30 up and down To form.

Here, when the side plate 40 is coupled to the first upper / lower unit 10 to the first upper / lower units 10 and 20 of the upper / lower plate 30, the side plate 40 is disposed at a constant position. The first locking jaw 14 is formed on one side of the first upper / lower unit 10, and the side plate 40 is formed so as to correspond to the first locking jaw 14 of the first upper / lower unit 10. ) May further form a second locking step 44.

When the upper and lower plates 30 and the side plates 40 are coupled, the upper and lower closed fixing bars 13 and the side plates 40 formed in the first upper and lower units 10 of the upper and lower plates 30 are combined. Side closed anchoring reinforcement 43 formed in the can be connected using the binding line (L), in particular, the side plate 40 at the time when the coupling of the upper and lower plates 30 and the side plate 40 is completed as described above Epoxy concrete (EC) in the outward direction of the beautiful appearance as well as can be configured to further increase the coupling force of the upper and lower plates 30 and the side plate 40.

In addition, the upper and lower insertion holes 13-1 and the upper and lower insertion holes are formed on a surface on which the upper and lower closed fixing bars 13 formed on the first upper and lower units 10 of the upper and lower plates 30 are formed. The upper and lower fixing holes 15 are further formed to be connected to the holes 13-1, and the upper and lower insertion holes 13-1 are formed on the surface formed in the side closed fixing bars 43 of the side plates 40. The side insertion hole 43-1 is further formed at a position corresponding to the above, and the tension member IB is coupled to the upper / lower insertion hole 13-1 and the side insertion hole 43-1. By using the upper and lower fixing units 15 formed in the first upper and lower units 10, the tension member IB may be pulled to further increase the coupling force between the upper and lower plates 30 and the side plates 40. .

Here, the tension member (IB) is preferably formed of a strand or a steel bar.

Looking at the effects of the configuration of the first embodiment as described above are as follows.

The quadrilateral separation culvert 50 of the present invention uses the first and second upper and lower units 10 and 20 and the side plate 40 of the upper and lower plates 30 in a factory, and then is assembled and used in the field.

First, the first and second upper and lower units 10 and 20 and the side plate 40 of the upper and lower plates 30 are manufactured in a factory.

After that, the first and second upper and lower units 10 and 20 constituting the upper and lower plates 30 are combined at the site.

Looking at the coupling method of the upper / lower plate 30, the first upper / lower unit 10 is disposed on both sides, and the second upper / lower unit 20 inside the first upper / lower unit 10. ), But the first and second upper and lower coupling jaws 11 and 21 formed in the first and second upper and lower units 10 and 20 may be disposed to be in contact with each other.

In this case, the second upper / lower unit 20 may be selected and used by the user according to the number of lanes of the underground road or the width to pass, and the first and second upper / lower units 10 and 20 may be used. The conventional binding line L of each of the fixing bars 11-1 and 21-1 formed is joined.

When the arrangement is completed as described above, the PC steel wire (PCS) is inserted into the sheath pipe (P) formed in the inner center of the first, second upper and lower units (10, 20), the first upper and lower units (10) After the post-tensioning method of forming a prestress for fixing the PC steel wire (PCS) in a tensioned state by using the side fixing unit 12 formed on the side of the first, second, upper and lower units (10, 20) Epoxy concrete (EC) is poured into the first and second upper and lower coupling jaws 11 and 21 formed in the upper and lower plates 30 to complete the manufacture of the upper and lower plates 30.

Here, in the present invention, the PC steel wire (PCS) to the inner both sides of the first, second upper and lower units (10, 20) in the manufacturing process of the upper / lower plate 30 to form a prestress through the pretension method Can be further improved.

Then, the upper and lower closed fusion reinforcing bars 13 formed on the first upper and lower units 10 of the upper and lower plates 30 and the side closed fixing bars 43 formed on the side plates 40 are tied to the binding line ( L) is combined and epoxy concrete (EC) is formed on the site to complete the construction of the present invention.

Here, in the present invention, the upper and lower insertion holes 13-1 and the upper and lower insertion holes 13-1 on the surface of the upper and lower closed fixing bars 13 formed on the first upper and lower units 10 of the upper and lower plates 30 are formed. The upper and lower fixing holes 15 connected to the lower / lower insertion holes 13-1 are further formed, and the upper and lower insertion holes are formed on the side of the side plate 40 of the side closed fixing anchoring bar 43. The side insertion hole 43-1 is further formed at a position corresponding to 13-1), and the tension member IB is coupled to the upper / lower insertion hole 13-1 and the side insertion hole 43-1. Thereafter, the upper and lower plates 30 and side plates 40 are further increased by pulling the tension member IB by using the upper and lower fixing units 15 formed in the first upper and lower units 10. In particular, when the upper and lower plates 30 are combined with the side plate 40 by using the lower plate, the upper and lower fixing holes 15 of the upper and lower plates 30 are firmly formed because the coupling is made by their own weight. To this You don't have to use it.

As described above, the present invention is manufactured in a factory in a state where each component is separated, so that it is easy to transport to the site and at the same time, the construction is completed and the air is shortened, in particular, of the upper / lower plate 30. The combination of the side closed anchoring bars 43 formed on the upper and lower closed anchorage bars 13 and the side plates 40 is more robust than the conventional ones, so that stability can be maintained, and the first and second plates of the upper and lower plates 30 can be maintained. By forming PC steel wires (PCS) on the upper and lower units (10, 20), the strength corresponding to self-weight and external force is increased, so that the construction can be performed without erecting columns in the middle when applied to underground roadways, thereby reducing construction and air. It will be possible.

[Example 2]

In the second embodiment, since the items mentioned in the first embodiment are repeated, only different parts from those in the first embodiment will be described.

First, the difference from the first embodiment is that the PC steel wire (PCS) is formed by pretensioning on both inner side surfaces of the first and second upper and lower units 10a and 20a of the upper and lower plates 30a. Prestress is formed in the lower plate 30a.

In addition, a sheath tube P is further formed at the inner center of the first and second upper and lower units 10a and 20a of the upper and lower plates 30a, and the side fixing unit is formed on the first upper and lower units 10a. Inserting the PC steel wire (PCS) in the sheath pipe (P) in the state of forming a further (12a) to give an additional prestress through the post-tension method is configured to further improve the strength of the upper / lower plate (30a). .

That is, the difference between the first and second methods of pre-tension method and post-tension method, the difference between the first embodiment will occur, and since the effects of the following configuration and configuration is the same, detailed descriptions will be omitted.

[Example 3]

First, as shown in FIGS. 4 to 6, the second embodiment of the present invention is composed of an upper / lower plate 130 and a side plate 140 similarly to the first embodiment, and the upper / lower plate 130 is made of It consists of 1 and 2 upper and lower units 110 and 120.

First, the first upper / lower unit 110 of the upper / lower plate 130 forms a sheath tube P formed through the inner center, and the first upper / lower unit including the fixing reinforcement 111-1 on one side thereof. A lower coupling jaw 111 is formed, and the other side is formed of an upper / lower coupling surface 112 and an upper / lower fixing unit 113 including upper and lower insertion holes 112-1.

In addition, the second upper / lower unit 120 of the upper / lower plate 130 forms a sheath tube P formed by penetrating inward, and the first upper / lower unit 110 of the first upper / lower unit 110 on both sides thereof. A second upper / lower coupling jaw 121 including the upper / lower coupling jaw 111 and the fixing bar 121-1 that can be coupled to the fixing reinforcement 111-1 is formed.

When the first and second upper / lower units 110 and 120 are coupled to each other, epoxy concrete EC is provided in the same manner as in the first embodiment.

On the other hand, the side plate 140 and the upper / lower coupling surface 112 including the upper / lower insertion holes 112-1 formed in the first upper / lower unit 110 of the upper / lower plate 130 A side engaging surface 142 including a corresponding side insertion hole 142-1 is formed, and the first and second upper and lower units 110 and 120 of the upper and lower plates 30 are formed on the side surfaces thereof. Side fixing unit 143 is formed to fix the PC steel wire (PCS) inserted into the sheath pipe (P) through the post-tension method.

In addition, in the third embodiment of the present invention, both sides of the inner side of the first and second upper and lower units 110 and 120 of the upper and lower plates 130 are provided with PC steel wires (PCS) for reinforcement by the pretension method. ) Can be further formed.

Here, the upper / lower plate 130 and the side plate 140 is coupled to the upper / lower insertion hole of the upper / lower coupling surface 112 formed in the first upper / lower unit 110 of the upper / lower plate 130 The tension member IB is inserted into the side insertion hole 142-1 of the side engaging surface 142 formed on the side plate 140 and the side plate 140, and the upper / lower plate 130 is formed on the upper / lower plate 130. By using the lower fixing unit 113, the upper / lower plate 130 and the side plate 140 can be more firmly coupled to the coupling.

Looking at the effect of the quadrilateral separation culvert 150 according to the third embodiment of the present invention having the configuration as described above are as follows.

First, referring to the construction method, as in the first embodiment, the first and second upper / lower units 110 and 120 and the side plate 140 of the upper and lower plates 130 are manufactured and installed in the factory. After transportation, the first and second upper and lower units 110 and 120 are assembled in the field.

Here, a difference from the first embodiment is that the upper and lower coupling surfaces 112 including the upper and lower insertion holes 112-1 formed in the first upper and lower units 110 of the upper and lower plates 130. Coupled to the side engaging surface 142 including the side insertion hole 142-1 of the side plate 140, the tension member (upper / lower insertion hole 112-1 and the side insertion hole 142-1) Combine IB).

At this time, although not shown in the drawing, both sides of the tension member (IB) is in a threaded state is formed, the insertion hole (112-1) and formed in the first upper / lower unit 110 of the upper and lower plates 130 and The side insertion hole 142-1 of the side plate 140 forms a screw thread in the form of a nut so that the tension member IB can be coupled to each other so that the tension member IB is formed as described above. After being combined, the upper and lower plates 130 and the upper and lower plates 130 are pulled by using the upper and lower fixing units 113 formed on the first upper and lower units 110 of the upper and lower plates 130. To further increase the bonding force of the side plate 140.

At this time, in the present invention, when the upper and lower plates 130 are combined with the side plate 140 by using the lower plate, the upper and lower fixing units 113 of the upper and lower plate 130 are dared to be formed by their own weight. You do not need to use.

In addition, the PC steel wire (PCS) is inserted into the sheath pipe (P) formed in the inner center of the first and second upper and lower units (110, 120) of the upper and lower plates 130, the side plate 140 The installation is completed by using a post-tensioning method of fixing the PC steel wire (PCS) in a tensioned state by using the formed side fixing unit 143.

In addition, the PC steel wires (PCS) may be further formed on both inner side surfaces of the first and second upper and lower units 110 and 120 of the upper and lower plates 130 to improve the yield strength by the pretension method.

As described above, the quadrilateral separation culvert according to the third embodiment of the present invention, which is completed as described above, has low transport and freight rates of the respective components, and the coupling force between the upper / lower plate 130 and the side plate 140 is increased during the assembling process. There is an effect of excellent stability, in particular, the self-weight and external force of the upper and lower plates 130 by the PC steel wire (PCS) formed in the first, second upper and lower units (110, 120) of the upper and lower plates 130 As the resistance to the resistance is increased, it is not necessary to form a column in the middle of the underground roadway, thereby reducing construction costs, shortening the air, and achieving space.

Example 4

The fourth embodiment is similar to the above-described third embodiment, except that the difference between the third embodiment and the pre-tension method and the post-tension method may be different. Since the effects are the same, the details are omitted.

Although the above-described embodiments are described with respect to the most preferred embodiments of the present invention, it is noted that the present invention is not limited thereto and may be implemented in various forms without departing from the technical spirit of the present invention.

1 is a perspective view of a quadrilateral separation culvert according to a first embodiment of the present invention.

2 is a cross-sectional view from the front in accordance with a first embodiment of the present invention.

3 is an exploded perspective view of FIG. 1;

Figure 4 is a perspective view of a quadrilateral separation culvert according to a second embodiment of the present invention.

5 is a cross-sectional view from the front in accordance with a second embodiment of the present invention.

6 is an exploded perspective view of FIG. 4.

▣ Explanation of symbols for main parts of drawing

EC: epoxy concrete IB: tension member

L: Binding Line P: Sheath Tube

PCS: PC steel wire 10, 10a: First upper / lower unit

11, 11a: the first upper and lower coupling jaw 12, 12a: the side anchorage

13, 13a: upper and lower closed fixing bars 13-1, 13-1a: upper and lower insertion holes

14, 14a: first locking jaw 15, 15a: upper and lower anchorage

20, 20a: second upper and lower unit 21, 21a: second upper and lower coupling jaw

30, 30a: upper and lower plates 40, 40a: side plates

43, 43a: Side closed anchoring bar 43-1, 43-1a: Side insertion hole

44, 44a: second locking step 110, 110a: first upper / lower unit

111, 111a: first upper and lower engaging jaw 112, 112a: upper and lower engaging surfaces

112-1, 112-1a: upper and lower insertion holes 113, 113a: upper and lower fixing holes

121, 121a: second upper and lower coupling jaw 130, 130a: upper / lower plate

140, 140a: side plate 142, 142a: side engaging surface

142-1, 142-1a: side insertion hole 143, 143a: side fixing hole

50, 50a, 150, 150a: quadrilateral split culvert

Claims (12)

A sheath tube P penetrates into the inner center, and a first upper / lower coupling jaw 11 including a fixing reinforcing bar 11-1 is formed on one side, and a side fixing unit 12 is formed on the other side. A first upper / lower unit 10 having upper and lower closed fusion bars 13; The sheath pipe P is disposed between the first upper and lower units 10 and penetrates to the inner center, and the first upper and lower coupling jaws 11 and the fixing bars 11-2 are formed at both sides. A second upper / lower unit 20 in which a second upper / lower engaging jaw 21 including a fixing bar 21-1 corresponding to 1) is formed; Epoxy concrete (EC) placed on the first and second upper and lower coupling jaws (11, 21) formed in the first and second upper and lower units (10, 20); It is coupled to the sheath pipe (P) formed in the first, second upper and lower units (10, 20), both sides are post-tensioned to the side fixing opening 12 of the first upper / lower units (10, 20) PC steel wire (PCS) that is coupled; consisting of an upper / lower plate 30; The side closed stiffening reinforcing bars 43 are formed to be coupled to the upper and lower closed fusion fastening bars 13 formed on the first upper and lower units 10 of the upper and lower plates 30, and the side closed stiffening bars 43 are formed. Side plate 40 composed of epoxy concrete (EC) formed to one side of the; Longitudinal reinforcing bars formed between the upper and lower closed fusion reinforcing bar 13 formed in the first upper and lower unit 10 of the upper and lower plates 30 and the side closed stiffening rebar 43 of the side plate 40 ( I) and a quadrilateral separation culvert characterized by consisting of a tie (L) connecting the upper and lower fusion anchoring reinforcement with the side closed fusion reinforcement (43) and the longitudinal reinforcement (I). The PC steel wire (PCS) formed by the pretension method is further formed on both inner side surfaces of the first and second upper and lower units 10 and 20 of the upper and lower plates 30. Quadrilateral detachable culvert with teeth. The first upper / lower unit 10a having the first upper / lower coupling jaw 11a including the fixing reinforcing bars 11-1a formed on one side and the upper / lower closed fusion rebar 13a formed on the other side thereof. Wow; Is disposed between the first upper and lower units (10a), and includes a fixing bar 21-1a corresponding to the first upper and lower coupling jaw (11a) and the fixing reinforcing bars (11-1a) on both sides A second upper / lower unit 20a having a second upper / lower engaging jaw 21a; Epoxy concrete (EC) formed on the first and second upper / lower engaging jaws (11a, 21a) formed on the first and second upper / lower units (10a, 20a); An upper / lower plate (30a) configured as a PC steel wire (PCS) coupled to both sides of the first and second upper / lower units 10a and 20a by a pretensioning method; A side closed stiffening bar 43a is formed to engage with the upper and lower closed stiffening bars 13a formed in the first upper / lower unit 10a of the upper / lower plate 30a, and the side closed stiffening bars 43a. The side plate 40a consisting of an epoxy concrete (EC) formed at one side of the; Longitudinal reinforcing bars formed between the upper and lower closed fusion reinforcing bars 13a formed on the first upper and lower units 10a of the upper and lower plates 30a and the side closed fixing bars 43a of the side plates 40a. I) and a quadrilateral separation culvert characterized in that it consists of a binding line (L) connecting the upper and lower closed fusion reinforcement (13a) and the side closed fusion reinforcement (43a) and the longitudinal reinforcement (I). 4. The mounting mechanism (12a) is formed in the first upper / lower unit (10a) of the upper / lower plate (30a), and to the inner center of the first and second upper / lower units (10a, 20a). The quadrilateral separation culvert, characterized in that to form a sheath pipe (P), further forming a PC steel wire (PCS) by the post-tension method on the sheath pipe (P). The quadrilateral shape according to claim 1 or 3, wherein the cross-sectional shape of the first and second upper / lower units 10, 10a, 20, and 20a of the upper and lower plates 30 and 30a is configured to be an industrial shape. Detachable culvert. According to claim 1 or 3, wherein the first locking jaw (14, 14a) is further formed on one side of the first upper and lower units (10, 10a) of the upper and lower plates (30, 30a), On both sides of the side closed anchoring bars 43 and 43a of the side plates 40 and 40a, the first locking jaws 14 and 14a and the second locking jaws 44 and 44a are further formed. Quadrilateral detachable culvert. According to claim 1 or claim 3, wherein the upper / lower plate (30, 30a) of the upper / lower closed units (13, 13a) formed in the first upper / lower units (10, 10a) of the upper / lower Further forming lower and lower fixing holes (13-1, 13-1a) and the upper and lower fixing holes (15, 15a) connected to the upper and lower insertion holes (13-1, 13-1a), the side plate ( Side insertion holes 43-1 and 43-1a are further formed on the surfaces of the side closed anchoring bars 43 and 43a formed in the 40 and 40a to form the upper and lower insertion holes 13-1 and 13-. 1a) and the upper and lower insertion holes 13-1 and 13-1a of the first upper and lower units 10 and 10a after coupling the tension member IB to the side insertion holes 43-1 and 43a-1. Quadrilateral separation type characterized in that the upper and lower plate 30, 30a and the side plate 40, 40a is fixed by pulling the tension member (IB) by using the upper and lower fixing holes (15, 15a) formed in connection with the culvert. A sheath pipe P penetrates into the inner center, and a first upper / lower coupling jaw 111 including a fixing reinforcing bar 111-1 is formed on one side, and an upper / lower insertion hole on the other side. A first upper / lower unit 110 forming an upper / lower engaging surface 112 and an upper / lower fixing unit 113 including a 112-1; The sheath pipe P is disposed between the first upper and lower units 110 and penetrates to the inner center, and the first upper and lower coupling jaws 111 and the fixing bars 111-2 are formed at both sides. A second upper / lower unit 120 having a second upper / lower engaging jaw 121 including a fixing bar 121-1 corresponding to 1); An upper / lower plate consisting of an epoxy concrete (EC) formed in the first and second upper / lower coupling jaws 111 and 121 formed in the first and second upper / lower units 110 and 120; The side insertion hole 142-1 corresponding to the upper / lower engaging surface 112 including the upper / lower insertion hole 112-1 formed in the first upper / lower unit 110 of the upper / lower plate 130. PC side wire is formed to form a side coupling surface 142 including a), the side coupled to the sheath pipe (P) formed in the first, second upper and lower units (110, 120) of the upper and lower plates 130 ( Side plate 140 formed with a side fixing unit 143 for coupling the PCS) by a post-tension method; quadrilateral separation culvert characterized by consisting of. The PC steel wire (PCS) formed by the pretension method is further formed on both inner side surfaces of the first and second upper and lower units 110 and 120 of the upper and lower plates 130. Quadrilateral detachable culvert with teeth. A first upper / lower coupling jaw 111a including the fixing bars 111-1a is formed at one side, and the upper / lower coupling surface 112a including the upper / lower insertion holes 112-1a at the other side. A first upper / lower unit 110a having an upper / lower fixing unit 113a; Disposed between the first upper / lower unit 110a, and both sides of the first upper / lower coupling jaw 111a and a fixing reinforcing bar 121-1a corresponding to the fixing reinforcing bars 111-1a; A second upper / lower unit 120a having a second upper / lower engaging jaw 121a; Epoxy concrete (EC) formed in the first and second upper and lower coupling jaws 111a and 121a formed in the first and second upper and lower units 110a and 120a. An upper / lower plate 130a formed of PC steel wires (PCS) coupled to both inner side surfaces of the upper / lower units 110a and 120a by a pretensioning method; Side insertion holes 142-1a corresponding to upper / lower engaging surfaces 112a including upper / lower insertion holes 112-1a formed in the first upper / lower units 110a of the upper / lower plates 130a. Side plate (140a) formed a side engaging surface (142a) including a; quadrilateral separation culvert characterized by consisting of. The sheath pipe P of claim 10, further comprising a sheath pipe P formed at a side of the upper and lower plates 130a at an inner center of the first and second upper and lower units 110a and 120a of the upper and lower plates 130a. The side fixing unit 143a is further formed on the side surface of the side plate 140a, and the sheath pipe P formed in the first and second upper / lower units 110a and 120a and the side fixing unit formed in the side plate 140a ( 143a) is a quadrilateral separation culvert characterized by further coupling the PC steel wire (PCS) by the post-tension method. 11. The method of claim 8 or 10, wherein the combination of the upper and lower plates 130 and 130a and the side plates 140 and 140a is the first upper and lower units 110 and 110a of the upper and lower plates 130 and 130a. Side insertion holes of the upper and lower insertion holes 112-1 and 112-1a of the upper and lower engaging surfaces 112 and 112a and side engaging surfaces 142 and 142a formed on the side plates 140 and 140a. Couple the tension member (IB) to the (142-1, 142-1a), the tension member (IB) for coupling to the upper and lower insertion holes (112-1, 112-1a) first upper and lower units (110) , Quadratic separation culvert characterized in that the upper and lower plates (130, 130a) formed by the upper and lower plates (130, 130a) and the side plates (140, 140a) fixedly coupled.

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