KR100349400B1 - Precasted culvert - Google Patents

Abstract

The present invention relates to a culvert unit having a plurality of culvert units that are continuously connected to form a tubular cavity, which is formed by protruding from the plate surface on one end surface of any one culvert unit, and formed in a cutout groove formed along the protruding direction. A male fastening member having a hook portion stretchable in the transverse direction of the protruding direction; It is formed in the end surface of the other culvert unit in contact with the culvert unit, characterized in that it has a female fastening member having a hook receiving portion for receiving the hook portion. This simplifies the assembly process of the culvert unit.

Description

Prefabricated Culvert Equipment {PRECASTED CULVERT}

The present invention relates to a culvert installation, and more particularly, to a culvert installation to facilitate the coupling between culvert units.

The underground buried culvert used for drainage and walking is connected to the individual units made in advance and installed in the field, so the installation work is very simple, quick, and mass production is possible. Recently, it is widely spread.

Culverts are used to form waterways of stormwater, sewage and agricultural industry, or to create passageways such as sidewalks and driveways, while underground underground areas for laying telecommunications, hot and cold pipelines, and storage of agricultural and marine products. It is widely used for production.

These culverts are prefabricated box-shaped culvert units with cavity holes formed inside of them at the factory in large quantities, and prefabricated culverts that form a predetermined passage by butt-contacting the culvert units to communicate with each other as needed in the field are widely used. It is used.

Such a culvert simply joins the joining area of the culvert unit using mortar or the like, forms a through hole through both side wall portions of the culvert unit, and fixes the through hole in the through hole of the culvert unit that is continuously connected to each other. Doing.

In the conventional assembled culvert equipment, as the length of the cable connecting the culvert unit becomes longer, the cable is stretched due to the load and the external force of the culvert units that are continuously coupled to each other, so that the clamping force between the culvert units becomes weak, or the joining area by cutting the cable. There is a disadvantage that the crack is likely to occur. In order to solve this disadvantage, a method of bolting and fixing some areas between adjacent culvert units are used.

However, in such a conventional assembled culvert, when assembling a culvert unit, culvert units are installed adjacent to each other, a tensile force is applied by cables, and adjacent culvert units are fixed to each other by bolts, and then the joint area is simply joined by mortar or the like. I'm trying to.

Therefore, there is a problem that the assembly process of the culvert unit is cumbersome because the culvert unit goes through several steps.

It is therefore an object of the present invention to provide a culvert facility for simplifying the assembly work of the culvert unit.

1 is a perspective view of a culvert according to the present invention,

2 is an enlarged exploded perspective view of the arm fastening member and the male fastening member installation region of FIG.

3 is a cross-sectional view of the arm fastening member and the male fastening member installation region of FIG.

<Description of the symbols for the main parts of the drawings>

10: culling unit 21: grouting accommodation

30: arm fastening member 32: guide inclination

34: hook receiving portion 40: male fastening member

41: hook portion 42: hook head

43: hook body 44: incision groove

45: fixed screw portion 46: fastening member

48: cutout

According to the present invention, in the culvert unit having a plurality of culvert units that are continuously connected to form a tubular cavity sphere, the object is formed to protrude from the plate surface on one end surface of any one culvert unit, along the protruding direction A male fastening member having a hook portion that is stretchable in the transverse direction in the protruding direction by the cut groove formed; It is achieved by a culvert installation, characterized in that it is formed in the end face of the other culvert unit in contact with the culvert unit, having a female fastening member having a hook receiving portion for accommodating the hook portion.

Here, each culvert unit is provided with a grouting recess recessed along the longitudinal direction of the cavity to accommodate the grouting along the circumferential direction of the cavity, wherein the female fastening member and the male fastening member are the grouting receiving portion. It is preferably formed in.

In addition, at least one of the end face of the culvert unit and the end face of the other culvert unit, the expansion index agent is embedded in the side wall of the grouting accommodation portion along the circumferential direction of the cavity, thereby maintaining the airtightness of each culvert unit Will be.

Hereinafter, the present invention will be described in detail with reference to the drawings.

The culvert facility, as shown in Figure 1, has a plurality of culvert units 10 which are butt-contacted to each other so that the cavities formed therein communicate with each other, each culvert unit 10 is a bottom plate portion 11, side plate portion 13 and the upper plate portion 15 has a rectangular box shape formed integrally.

In the contact end portion of the bottom plate portion 11 region of each culvert unit 10, a bleed edge 17 having a thickness width reduced along the thickness direction of the bottom plate portion 11 is protruded, and the other contact end portion opposite thereto is formed. There is formed a cutout portion 19 cut upward from the bottom surface so as to interlock with the bite edge 17 of the other culvert unit (10).

Grouting accommodating portions 21 are formed at both contact ends of each culvert unit 10, recessed from the plate surface of the contact end portion over the upper plate portion 15, the bottom plate portion 11, and both side plate portions 13 to accommodate grouting. In addition, the upper plate portion 15 is formed with a plurality of grouting inlet 23 in communication with the grouting accommodating portion 21 to inject grouting, respectively. Cable holes 22 are formed in each corner region of the grouting receiving portion 21 of each culvert unit 10 to accommodate the cables installed through the side walls.

On the other hand, at the contact end of each culvert unit 10, a hook coupling device is provided in the grouting accommodating portion 21 for mutually engaging the culvert units 10 at a predetermined interval. The hook coupling device includes a female fastening member 30 installed at one contact end of each culvert unit 10 and a male fastening member 40 installed at the other contact end.

The male fastening member 40 has a hook portion 41 protruding from the plate surface of the grouting accommodating portion 21, as shown in Figs. It has a hook body 43, the diameter of which narrows toward the end, and a hook head 42 diameter-expanded at the free end of the hook body 43. In addition, the hook body 43 and the hook head 42 are formed with a cutting groove 44 for a predetermined length of time along the protruding direction, and the cutting groove 44 is located along the circumferential direction of the hook portion 41. A plurality is formed at intervals and joined in the central region of the hook portion 41. This cutting groove 44 allows the hook portion 41 to elastically stretch in the transverse direction of the protruding direction.

On the other hand, the end portion of the hook portion 41 is formed with a fixed screw portion 45 is formed with a male thread, and the fixing screw member 46 is formed in the grouting accommodating portion 21, the female screw thread is formed so that the fixed screw portion 45 is screwed It is embedded to secure the hook portion 41 to the contact end of the culvert unit (10). A plurality of anchor portions 47 are formed at the embedding end of the fixed fastening member 46 to support the fixed fastening member 46. In addition, the sidewall of the grouting accommodating portion 21 in the region where the fastening member 46 is embedded is formed with a cutout portion 48 cut along a predetermined section along the longitudinal direction. On the other hand, the hook portion 41 may be fixed by embedding the end formed with the fixing screw portion 45 of the hook portion 41 directly to the culvert unit (10) without using the fastening member 46.

The female fastening member 30 to which the male fastening member 40 is coupled has a hook accommodating portion 34 which accommodates the hook head 42 and has an inlet side reduced in diameter, and has a hook accommodating portion 34 formed therein. A guide inclined portion 32 is formed on the sidewall of the grouting accommodating portion 21 to guide the hook head 42 and become narrower in the coupling direction of the hook portion 41. In addition, the guide inclination portion 32 is formed to have a large width so as to have a predetermined distance from the hook body 43 when the hook portion 41 is coupled, the male fastening member 40 and the female fastening member 30 of the When combined, the guide slope 32 and the cutout 48 form a single passageway through which grouting passes. A plurality of anchors 36 are formed at the embedded end of the arm fastening member 30 to support the arm fastening member 30.

On the other hand, an expansion index agent 50 is embedded in the pair of contact end surfaces formed on both sidewalls of the grouting accommodating portion 21 along the circumferential direction of the cavity, and the expansion index agent 50 allows each culvert unit ( In the combination of 10) each culvert unit (10) is to maintain mutual confidentiality.

With this configuration, when assembling the culvert unit 10, first, each contact end of the culvert unit 10 is installed so as to be adjacent to each other, and a cable (not shown) is installed in each of the cable holes 22 communicated with each other. . Then, when the tensile force is applied to the cable, the hook portion 41 of the male fastening member 40 is moved along the guide inclined portion 32 while stretching in the transverse direction in the protruding direction by the cutting groove 44, the hook portion The hook head 42 of 41 is accommodated in the hook receiving portion 34 of the female fastening member 30. At the same time, the expansion index agent 50 embedded in the contact end of each culvert unit 10 is in contact with each other so that each culvert unit 10 is kept airtight.

When the installation is completed, the grouting unit 10 is injected to each grouting receiving unit 21 through each grouting inlet 23 so that each culvert unit 10 is bonded to each other, and at this time, the guide inclining unit 32 in the hook coupling device region. And grouting flow through the passage formed by the cutout 48.

As described above, in the present invention, the arm fastening member 30 and the male fastening member 40, which are hook coupling apparatuses, which are hooked to each other on the grouting receiving portions 21 of the respective culling units 10, are respectively provided, The arm fastening member 30 and the male fastening member 40 are coupled to each other in the process of approaching each culvert unit 10. Accordingly, the separate assembly process for the coupling of the hook coupling device is not necessary, thereby simplifying the assembly process of the culvert unit 10.

On the other hand, in the above-described embodiment, although the cable is installed to access each culvert unit 10 mutually, as shown by a dotted line in Fig. 1, respectively on the outer side of the side plate portion 13 of each culvert unit 10 Each culvert unit 10 may be approached using a chain block 51 provided with a chain.

As described above, according to the present invention, the assembly process of the culvert unit is simplified.

Claims (3)

In the culvert installation having a plurality of culvert units that are continuously connected to form a tubular cavity, A male fastening member protruding from the plate surface on one end surface of any one culvert unit and having a hook portion stretchable in the transverse direction in the protruding direction by a cutting groove formed along the protruding direction; Equipped with an end surface of the other culvert unit in contact with the culvert unit, the culvert facility, characterized in that it has a female fastening member having a hook receiving portion for receiving the hook portion. The method of claim 1, Each culvert unit has a grouting recess recessed along the longitudinal direction of the cavity to accommodate grouting and is formed along the circumferential direction of the cavity, and the female fastening member and the male fastening member are formed in the grouting receiving portion. Culvert facility, characterized in that. The method of claim 1, And at least one of an end face of the culvert unit and an end face of the other culvert unit, an expansion index agent is embedded in the side wall of the grouting accommodation portion along the circumferential direction of the cavity.