KR100201490B1 - Precasted culvert and method for installing the same - Google Patents

Abstract

The present invention relates to a prefabricated culvert having at least a pair of first members and a second member which are in butt contact contact with each other, wherein the first member and the second member cooperate with each other along a butt contact line and have a predetermined width recessed from the surface. Forming a post grouting groove, it is poured after the butt contact along the post grouting groove is characterized in that it comprises a connecting grout portion is poured after the butt contact mutually along the connecting grouting grooves to interconnect. Thereby, there is provided a prefabricated culvert and its installation method which can be easily assembled and the deformation of the culvert assembly can be minimized.

Description

Installation method of prefabricated culvert and prefabricated culvert

The present invention relates to a method for installing a prefabricated culvert and a prefabricated culvert having at least one pair of first members and a second member which are in butt contact with each other, and more particularly, a prefabricated type which enables grouting pouring along a butt contact line. It relates to a method for installing a culvert and a prefabricated culvert.

Culvert forms waterways such as rainwater, sewage and agricultural industrial water, makes passages such as sidewalks and driveways, manufactures underground underground areas for telecommunications, laying hot and cold pipelines, and manufactures warehouses of agricultural and marine products. It is used in various ways.

In particular, by dividing the culvert into parts, for example, cover plates, side plates, bottom plates, etc. are produced in large quantities in the factory and assembled at the site, thereby slicing air and enabling economic construction. Is widely used.

As an example of such a prefabricated culvert, the culvert is divided into a cover plate, a side plate, and a bottom plate to protrude a trapezoidal coupling protrusion in the front and rear sides of the side plate, and form a hermetically sealed layer in communication with an input hole at the center thereof to mutually bond. Prefabricated culverts are known from Korean Utility Model Publication No. 85-28.

By the way, in such a prefabricated culvert, there is no other means other than the form of the coupling, which is formed by joining the protrusions of the concave-convex shape before and after the culverts to be joined to each other. There is a drawback that it is difficult to keep it permanently.

In consideration of these shortcomings, the bottom plate is separated and manufactured to be symmetrical with respect to the center area, and the reinforcing bars are extended in the mutual direction along the butt contact lines to allow grouting to be cast in the field, thereby preventing twisting and slipping. A prefabricated culvert that can be made is known and proposed by the present inventor in Korean Utility Model Publication No. 96-8710.

Figure 4 is a perspective view of a conventional prefabricated culvert according to the inventors' invention. As shown, the prefabricated culvert is a bottom plate 110, the side plate 120 is installed on the bottom plate 110, the middle partition wall 140 interposed between the side plate 120, and the side plate ( 120 and a plurality of cover plates 130 coupled to the upper portion of the intermediate partition wall 140. The bottom plate 110 is extended to the outside of the plurality of reinforcing bars 113 in the inner end 112 so that the butt contact and grouting.

By the way, in such a conventional culvert, the reinforcing bar protrudes outward along the butt contact line of the bottom plate, making it difficult to adjust the position between the bottom plates, and the side plate and the top plate which are installed and coupled to the sea plate. The overall assembly of the is not easy. In addition, the grouting is in direct contact with the ground may be absorbed into the ground, in which case it is difficult to maintain a uniform grouting strength, there is a problem that the deformation of the culvert assembly due to uneven settlement is likely to occur. In addition, in the case of the upper plate, there is a drawback that there is simply a concave-convex coupling to the side plate so that it can be easily deformed due to torsion or pressure acting horizontally or vertically.

Accordingly, an object of the present invention is to provide a prefabricated culvert and a method of installing the same, which is easy to assemble and the deformation of the culvert assembly can be minimized.

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

2 is an assembled state of FIG.

3 is a longitudinal sectional view taken along line I-I of FIG.

4 is a perspective view of a conventional prefabricated culvert.

* Explanation of symbols for main parts of the drawings

10: bottom plate 11, 32: cutout

12a, 12b: bite jaw 14: receiving groove

16: ridge 17, 34: reinforcing bar

20: side plate 22: flange portion

24, 37: step 30: cover plate

31a: long cover plate 31b: short cover plate

40: intermediate partition 42a, 42b: flange

The object is a prefabricated culvert having at least one pair of first and second members in butt contact with each other according to the present invention, wherein the first member and the second member cooperate with each other along the butt contact line and are recessed from the surface. It is achieved by a prefabricated culvert, characterized in that it forms a post-grouting groove of a predetermined width, comprising a connecting grouting portion which is placed after the butt contact with each other along the post-grouting groove and connected to each other.

Here, the connection grout portion is preferably configured to extend the steel reinforcing bar.

According to another aspect of the present invention, in the method of installing a prefabricated culvert having at least one pair of first and second members in butt contact contact with each other, the first member and the second member is recessed from the surface along a butt contact line Providing a post grouting groove of a predetermined width, contacting the first member and the second member with each other, and placing grouting in the post grouting groove. The installation method of is provided.

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

Figure 1 is an exploded perspective view of a prefabricated culvert according to the present invention, Figure 2 is a perspective view of the assembled state of Figure 1, Figure 3 is a cross-sectional view taken along the line I-I of FIG. As shown in these figures, the prefabricated culvert has a plurality of culvert units having an almost rectangular shape. Each culvert unit has a substantially rectangular shape and has a plurality of bottom plates 10 which are in butt contact contact with each other, a plurality of side plates 20 which are substantially perpendicular to both side edges of the bottom plate 10, and a side plate 20. The cover plate 30 is coupled to the upper portion of the. In addition, a plurality of intermediate partition walls 40 having substantially I-shaped cross sections are spaced apart at predetermined intervals between the bottom plate 10 and the cover plate 30 in parallel with both side plates 20.

An inner edge portion of the bottom plate 10 is formed with a cutout portion 11 having a substantially L-shape cut in the thickness direction from the upper surface, and the reinforcing bar 17 extends outward side by side with the plate surface from the cut end portion. It is. In addition, the front end and the rear end are cut in the thickness direction from the lower surface and the upper surface, respectively, so as to be engaged with the other bottom plate, so that the bite bumps 12a and 12b are formed. A receiving groove 14 recessed from the plate surface is formed in the upper surface of the bottom plate 10 along the installation direction of the culvert unit, and a central rib of the receiving groove 14 protrudes upward along the longitudinal direction ( 18a) is formed. A ridge 16 raised from the plate surface is formed between the cutout 11 and the receiving groove 14, and a bleed rib 18b protrudes from the central region of the ridge 16. As shown in FIG.

At the lower end of the side plate 20, a flange portion 22 extending in the thickness direction is formed so that the side plate 20 can be stably maintained in the standing direction, and is recessed from the end surface to recess the rib of the bottom plate 10. The rib receiving groove 23 is formed to accommodate the 18a. The upper end portion is formed of a step 24 cut in the thickness direction from the inner surface of the plate surface so as to correspond to the pressure acting in the horizontal direction from the outer surface of the side plate 20.

Both end portions of the intermediate partition wall 40 extend in the thickness direction to form flange portions 42a and 42b, and rib receiving grooves 43a and 43b recessed from the plate surface are formed in the flange portions 42a and 42b. Respectively, the bleed ribs 18b of the bottom plate 10 and the bleed ribs of the cover plate to be described later are accommodated.

On the other hand, the cover plate 30 has a long cover plate 31a and a short cover plate 31b which are divided and manufactured to have the same width and have a ratio of almost 2: 1 in the longitudinal direction. The long cover plate 31a has a substantially rectangular shape, and the short cover plate 31b has a substantially rectangular shape and is arranged in a zigzag arrangement. The cover plate 30 has cutouts 32 cut in the thickness direction from the upper surface of the plate surface at the remaining three edges except for the outer edge portion 35, and the reinforcing bars 34 are parallel to the plate surface at the cut end portion. It is extended. In addition, the lower surface of the outer edge portion 35 is formed with a stepped step 37 cut in the thickness direction from the lower surface along the installation direction of the culvert unit is combined with the step 24 of the side plate 20 side plate 20 ) Is prevented from being pushed inward. In the center region and the inner edge of the long cover plate 31a and the inner edge 36 of the short cover plate 31b, a bleed rib 38 protruding from the plate surface is formed in parallel with the step 37 of the outer edge 35. It is.

By such a configuration, when the inner edges of the bottom plate 10 are disposed to be in contact with each other, the grouting grooves 49a are formed by being recessed from the plate surface by the mutual cutouts 11. The lower end of the side plate 20 is coupled to the receiving groove 14 of the bottom plate 10, the middle partition 40 is coupled to the ridge 16 of the bottom plate 10, and then the cover plate 30. The cutout portion 32 of the) is provided on the upper end of the side plate 20 and the middle bulkhead 40, respectively, butt contact. Accordingly, after the butting contact line of the cover plate 30 has a predetermined width and recessed from the surface is formed a grouting groove (49b). When the grouting is poured into the post grouting grooves 49a and 49b, as shown in FIGS. 2 and 3, the grouting and the reinforcing bars 17 and 34 are connected to the grouting parts 50a and 50b. This prevents the culvert assembly from torsion and deformation due to external forces.

As such, by forming the cutouts cut in the thickness direction in the bottom plate and the cover plate so as to be in contact with each other, the assembling positions can be accurately set to facilitate assembly. In addition, by forming a connection grouting part by pouring grouting into the grouting groove formed by recessing from the surface along the butt contact line, it is possible to prevent deformation of the culvert assembly due to unbalance and twisting.

As described above, according to the present invention, there is provided a prefabricated culvert and its installation method which can be easily assembled and the deformation of the culvert assembly can be minimized.

Claims (3)

In the prefabricated culvert having at least one pair of first members and second members which are in butt contact contact with each other, the first member and the second member cooperate with each other along the butt contact line to form a post-growing groove of a predetermined width recessed from the surface. Forming, prefabricated culvert, characterized in that it comprises a connecting grouting portion which is poured after the butting contact with each other along the post grouting groove. The prefabricated culvert according to claim 1, wherein a reinforcing bar is extended in the connection grouting part. A method of installing a prefabricated culvert having at least one pair of first and second members in contact butt contact with each other, the post grouting groove having a predetermined width recessed from the surface along the butt contact line with the first member and the second member. Arranging; Butt contacting the first member and the second bag; And installing grouting in the post grouting groove.

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