KR200273404Y1 - Precasted culvert - Google Patents

Abstract

Prefabricated culverter having a flat bottom plate member, a top plate member spaced apart from the bottom plate member and arranged side by side, and a wall member interposed between the top plate member and the bottom plate member and engaged with the bottom plate member and the top plate member, respectively. It relates to, the end surface of the top plate member and the bottom plate member, a gripping projection protruding toward the wall member along the longitudinal direction of the top plate member and the bottom plate member is formed; The wall member has a spanner shape, and both ends are provided with a grooving groove to receive the grooving portion; A packing made of rubber material is interposed between the upper plate member, the bottom plate member, and the mutually uneven engagement portion of the wall member; The packing is characterized in that the receiving groove and the flange portion protruding outward from each side edge of the receiving portion is formed. As a result, the assembling construction is simple, and the airtightness of the contact area between the top plate member and the bottom plate member and the wall member can be maintained for a relatively long time.

Description

Prefabricated Culvert {PRECASTED CULVERT}

The present invention relates to a prefabricated culvert.

Prefabricated culverts are used to form waterways such as stormwater, sewage and agricultural industrial water, or to create passageways such as sidewalks and driveways, while building underground common areas for laying telecommunications, hot and cold pipelines, and storage of agricultural and marine products. It is widely used for the production of

Such prefabricated culverts are prefabricated at the factory in a box-shaped culvert unit having a cavity formed therein, and then buried in a butt contact coupling to bury the cavities of each culvert unit in the field.

Both ends of each culvert unit are formed with a recessed groove and a protruding jaw so that they can be assembled together. However, since the recessed grooves and the projecting jaws of each culvert unit have a weak structure, when the ground is settled and flows due to the elevation, cracks or breakages occur at the mutually contacting portions, and as a result, continuous sealing of the joint area There is a problem that can not be maintained. In such a case, there is a problem that leakage occurs in the cracked or broken joint area, and the culvert cannot fully perform its role.

In view of such a problem, after forming a through hole penetrating from one end of the culvert unit to the other end opposite to it, and installing a cable or the like to pass through a plurality of culvert units in contact with each other, the mortar and the like The culvert which hardens | cures and exerts a tension force along the longitudinal direction of a cavity is proposed.

By the way, in such a conventional prefabricated culvert, the delay time for installation of a cable, hardening of a mortar, etc. is required, and there exists a problem which requires a comparatively large number of working people and working time. Further, even after assembling, there is a problem that deterioration or corrosion of the cable occurs as time passes, so that the butt contact area due to the hardened mortar is strengthened and its airtightness is not properly achieved. In such a case, in particular, the ground shakes or flows, and cracks or breakages of the mutually contacting portions occur, thereby causing a problem that the entire prefabricated culvert must be rebuilt.

Accordingly, an object of the present invention is to provide a prefabricated culvert that can easily achieve the assembly construction in a relatively short time.

Another object of the present invention is to provide a prefabricated culvert that is capable of minimizing cracking or breakage of the mutually contacting area of the top plate member and the bottom plate member and the wall member, and maintaining the airtightness for a relatively long time.

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

2 is a perspective view of the combination of FIG.

3 is a cross-sectional view of the prefabricated culvert along line III-III of FIG.

* Explanation of symbols for the main parts of the drawings

1: top plate member 3: bottom plate member

5 wall member 7 cavity

9: grouting filling part 11: grouting injection groove

13: bleeding projection 15: bleeding groove

17: Packing

The object is, according to the present invention, a flat bottom plate member, a top plate member disposed side by side at a predetermined distance from the bottom plate member, and interposed between the top plate member and the bottom plate member interposed with the bottom plate member and the top plate member respectively. In the prefabricated culvert having a wall member to be coupled, the end surface of the top plate member and the bottom plate member, the chamfer protruding toward the wall member along the longitudinal direction of the top plate member and the bottom plate member; The wall member has a spanner shape, and both ends are provided with a grooving groove to receive the grooving portion; A packing made of rubber material is interposed between the upper plate member, the bottom plate member, and the mutually uneven engagement portion of the wall member; The packing is achieved by a prefabricated culvert, characterized in that the chamfer-shaped accommodating portion and a flange portion protruding outward from each side edge of the accommodating portion are formed.

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

1 is an exploded perspective view of a prefabricated culvert according to the present invention, Figure 2 is a perspective view of the combination of Figure 1, Figure 3 is a cross-sectional view of the assembled culvert according to the III-III line of FIG. As shown in these drawings, the prefabricated culvert according to the present invention has a flat top plate member 1, a flat bottom plate member 3 arranged side by side with a predetermined separation space from the top plate member 1, and a top plate member 1 ) And at least one wall member 5 interposed between the bottom plate member 3.

A cavity sphere 7 is formed therein by these top plate members 1, the bottom plate member 3, and the wall member 5, and the grouting filling unit 9 is spaced apart from the cavity sphere 7 so as to surround the cavity sphere 7. Is recessed. The grouting injection groove 11 is recessed in the upper plate member 1 so as to extend toward the grouting filling part 9 to inject the grout into the grouting filling part 9. The bottom plate member 3 is provided with an air discharge groove 27 extending upward from the grouting filling portion 9 toward the cavity 7.

Meanwhile, the top plate member 1 and the bottom plate member 3 and the wall member 5 are interlocked with each other so that the top plate member 1 and the bottom plate member 3 protrude toward the wall member 5. (13) is formed, and the dent groove (15) is recessed in the wall member (5) so as to accommodate the chamfer (13). The chamfer 13 extends along the longitudinal direction of the upper plate member 1 and the bottom plate member 3. Correspondingly, the engagement groove 15 also extends along the longitudinal direction of the wall member 5. A rubber packing 17 is interposed between the bite protrusion 13 and the bite groove 15 to maintain airtightness.

As can be seen in detail in Fig. 1, the rubber packing 17 is provided with a receiving groove 21 having a bleed groove shape, and as long as extending laterally from both longitudinal edges of the receiving portion 21, respectively. It consists of a pair of flange parts 22 and 23. These accommodation portions 21 and the flange portions 22, 23 can be manufactured simply by injection molding integrally. The receiving portion 21 is accommodated in the bleed groove 15 of the wall member 5. At this time, the flange parts 22 and 23 are respectively arrange | positioned at the both edges of the bite groove 15 of a wall member. As a result, direct contact between the top plate member 1 and the bottom plate member 3 and the wall member 5 is prevented as much as possible.

According to the above configuration, when the culvert unit is installed in the field, the cavity 17 is engaged with the upper plate member 1 and the bottom plate member 3 and the packing 17 through the contact area between the wall member 5. ). Such assembling is preferable because it does not require time for curing the conventional mortar, and can reduce the number of people for work.

The assembled culvert unit is prevented from being directly contacted by the packing 17 interposed between the top plate member 1 and the bottom plate member 3 and the wall member 5 even when the ground flow occurs. Therefore, cracking or damage by contact can be prevented, and it can play a role as a culvert for a long time.

On the other hand, when the assembly of the culvert unit is completed, other culvert units are disposed adjacent to each other, and the cavity tool 7 is arranged to communicate with each other. Then, grout is injected into the grouting filling part 9 through the grouting injection groove 11 formed in the upper plate member 1 of each culvert unit to bind each culvert unit.

In this way, when assembling the top plate member 1, the bottom plate member 3 and the wall member 5, it is possible not only to join each member by injecting grout, but also to strengthen the binding force by engaging each member with the uneven engagement. .

As described above, according to the present invention, the delay time for hardening of the mortar, etc. is eliminated, so that the assembly construction can be easily achieved in a relatively short time, the assembled top plate member and bottom plate member, and the wall member A prefabricated culvert is provided that can minimize cracks or breakage of the mutual contact areas of the lamella and maintain the airtightness for a relatively long time.

Claims (1)

Prefabricated culverter having a flat bottom plate member, a top plate member spaced apart from the bottom plate member and arranged side by side, and a wall member interposed between the top plate member and the bottom plate member and engaged with the bottom plate member and the top plate member, respectively. To End faces of the upper plate member and the bottom plate member are provided with a bite protrusion protruding toward the wall member along a longitudinal direction of the upper plate member and the bottom plate member; The wall member has a spanner shape, and both ends are provided with a grooving groove to receive the grooving portion; A packing made of rubber material is interposed between the upper plate member, the bottom plate member, and the mutually uneven engagement portion of the wall member; The packing is a prefabricated culvert, characterized in that the chamfer-shaped receiving portion and the flange portion protruding outward from each side edge of the receiving portion, respectively.