KR200272596Y1 - A fabricated type duct block - Google Patents

Abstract

The present invention relates to a prefabricated culvert block, to be able to increase the reliability of the product by being able to prevent the damage due to the impact when joining the members and to make the assembly coupling between the upper and lower members more robust and efficient. will be.

The culvert block of the present invention for realizing this extends downward from both ends of the lower culvert 10 and the upper plate 21 of the flat surface extending upwardly from both ends of the bottom plate portion 11 of the flat surface to form the lower side wall 12. In the prefabricated culvert block to form a receiving space therein by the upper culverts 20 forming the upper side wall 22 are opposed to each other: each of the lower culvert 10 and the upper culvert 20 Rubber joints 9, 14, and 24 for impact reduction are provided in the form of a band at the joint; On the lower end of the lower side wall 12 of the lower culvert 10 and the lower end of the upper side wall 22 of the upper culvert 20, the reinforcement portions 12a and 22a having an increased cross-sectional thickness are formed outside, and assemblability is improved. A step for forming a predetermined height (h); The lower side of the upper side wall 22 of the upper culvert 20 is characterized in that the tension mounting holes 27 and tension holes 28 for tensioning the steel wire is formed.

Description

Prefabricated culvert block {A FABRICATED TYPE DUCT BLOCK}

The present invention relates to a culvert block, and more particularly, to a prefabricated culvert block structure to be made more smoothly assembled between the block structure is built in the factory and transported to the site.

In general, culverts are used to form waterways such as stormwater, sewage and agricultural industrial water, or to create passageways such as sidewalks and driveways, while underground underground tunnels are used for laying telecommunications and hot and cold pipelines. It is used for various purposes such as production.

Such a culvert facility is a prefabricated box-shaped culvert unit with a cavity formed inside of the factory in advance, and by pre-fabricating them in the field, the prefabricated culverts not only shorten the air, but also economical construction is possible. It is widely used.

However, this conventional prefabricated culvert block has a problem that the resistance to stress is weak because the earth pressure is concentrated on the side wall, it is difficult to make a solid assembly when joining the upper and lower members.

The present invention is proposed to improve the above-described problems, and an object of the present invention is to provide a culvert block structure in which assembly resistance between the upper and lower members can be made more robust and efficient while the resistance stress of the side walls is reinforced.

1 is a perspective view of the lower culvert according to an embodiment of the present invention.

Figure 2 is an assembled state of the present invention prefabricated culvert.

3 is a sectional view taken along the line A-A of FIG.

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

10: lower culvert 11: base plate

12: lower side wall portion 13: mounting groove

15: tension fitting 19,29: water expansion index

20: upper culvert 21: the upper plate

22: upper side wall 27: tension fitting

30: communication hole 31: anchor bolt

34,35: anchor bolt mounting holes 9, 14, 24: rubber pad

The object of the present invention is that the rubber pads are provided at the joint portions of the lower culvert and the upper culvert, respectively, in the form of a band at the mutually corresponding portions, and the reinforcement portion of which the cross-sectional thickness is increased outwardly at the upper end of the sidewall of the lower culvert and the lower end of the sidewall of the upper culvert Along with the formation, a step was formed to facilitate coupling, and the lower sidewall of the upper culvert can be achieved through a prefabricated culvert block, characterized in that a tension mounting hole and a tension hole are formed for tensioning the wire. .

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

1 is a perspective view of a lower culvert according to an embodiment of the present invention, Figure 2 is a view showing a state in which the upper culvert is coupled to the lower culvert, Figure 3 is a cross-sectional view A-A of FIG.

As shown, the lower culvert 10 includes a flat bottom plate portion 11 and a lower side wall portion 12 extending upwardly from both sides of the bottom plate portion 11 to form sidewalls. It consists of a flat upper plate portion 21 and an upper side wall portion 22 extending downward from both sides of the upper plate portion 21 to be connected to the lower side wall portion 12.

In particular, the rubber pad 9 is formed in the form of a band attached to the portion to be connected between the culverts to prevent breakage due to the impact during assembly. The upper surface of the lower side wall portion 12 and the lower side of the upper side wall portion 22 are formed. The mounting groove 13 is also formed on at least one surface of the rubber pads 14 and 24 of the same material to form an attachment to prevent breakage during such construction.

In addition, by forming the reinforcing parts (12a, 22a) with the cross-section is increased to the outside of the upper side of the lower side wall portion (12) and the lower side of the upper side wall (22) where the joint assembly is made to resist the stress acting on the side At the same time, the step (h) of the protruding shape corresponding to each other was formed at a predetermined height in order to improve mutual assembly and stress reinforcement.

On the other hand, in the conventional culvert member, the tension mounting holes 15 and the tension holes 16 and 26 are formed at predetermined positions at each corner side, and the upper culvert 20 of the present invention has the upper side wall portion 22 By further installing the tension fitting 27 and the tension hole 28 in the lower portion was to enable the tension of the steel wire.

As shown in FIG. 3, each of the reinforcing parts 12a and 22a to which the culvert assembly is made is formed, thereby forming a curved communication hole 30 that can be communicated with each other, thereby forming an anchor bolt 31 therein. After insertion, the washer 32 and the nut 33 were fixed at both ends to increase the clamping force between the culverts.

In the drawings, reference numerals 19 and 29 denote water expansion indexes, and 34 and 35 denote anchor bolt mounting holes.

Looking at the effect of the present invention prefabricated culvert block constituting such a configuration as follows.

That is, when assembling and installing each prefabricated culvert at the site to be installed by the above configuration, the lower culvert 10 is arranged in a row on the foundation concrete 36 and then the upper culvert 20 is brought into close contact therewith. do.

In this assembling process, the impact is reduced by the rubber pads 9, 14, and 24 disposed at the contact portions between the culvert members, thereby preventing the occurrence of breakage. In particular, in the assembling process with the upper culvert 20, It can be seen that the workability can be improved by being assembled by fitting step by the step (h) is formed.

As such, when the seating of the upper culvert 20 is completed, joining is performed between the structures using hydraulic tension. In this case, since each culvert member is a heavy material, it was difficult to make a solid joint in the related art. However, in the present invention, since the tension mounting holes 27 formed on the lower side of the lower side wall portion 21 are formed, the steel wire is inserted into the communication hole 28 formed therein, and tensioned by using the hydraulic tensioner. ) Can be achieved.

Then, when the arrangement of the upper culvert 20 and the lower culvert 10 is completed through the tensioning operation as shown in the cross-sectional view of Figure 3 anchor bolts in the communication hole 30 of the anchor bolt mounting holes (34, 35) After inserting the 31, both ends are fixed by using the washers 32 and the nuts 33, respectively, so that the coupling state between the culverts can be more firmly fixed.

The culvert structure completed through this assembly process can be significantly improved as the upper culvert 20 and the lower culvert 10 are coupled step by step, especially due to the increased reinforcement portion (12a, 22a) structure It can be seen that the resistance to stress acting at is improved.

In addition, although specific embodiments of the present invention have been described above, it is obvious that the culvert structure of the present invention may be variously modified and implemented by those skilled in the art.

However, such modified applications should not be individually understood from the technical spirit or prospect of the present invention, and other modified embodiments should fall within the appended utility model claims of the present invention.

Prefabricated culvert block of the present invention as described above can be prevented from damage due to the impact when joining the members, as well as the assembly coupling between the upper and lower members can be made more robust and efficient to increase the reliability of the product. Will be.

In addition, the increased reinforcement structure has the advantage that the resistance to the stress acting on the side wall can be reinforced.

Claims (3)

An upper portion extending from both ends of the bottom plate portion 11 of the flat surface to form the lower side wall 12 and an upper portion extending from both ends of the upper plate portion 21 of the flat surface to form the upper side wall 22. In the prefabricated culvert block in which the culverts 20 are opposed to each other to form a receiving space therein: Rubber pads (9, 14, 24) for impact reduction are provided in the joint portions of the lower culvert 10 and the upper culvert 20; On the lower end of the lower side wall 12 of the lower culvert 10 and the lower end of the upper side wall 22 of the upper culvert 20, the reinforcement portions 12a and 22a having an increased cross-sectional thickness are formed outside, and assemblability is improved. A step for forming a predetermined height (h); Prefabricated culvert block, characterized in that formed on the lower side of the upper side wall 22 of the upper culvert 20, the tension mounting port 27 and the tension hole 28 for tensioning the steel wire. The method according to claim 1, The reinforcing parts 12a and 22a where the lower culvert 10 and the upper culvert 20 are joined are formed by forming a communication hole 30 which is in communication with each other in a curved shape, and thus, the anchor bolt 31 is inserted into each other. Prefabricated culvert block, characterized in that it is provided to be fixed. The method according to claim 1, Prefabricated culvert block, characterized in that the lower culvert 10 and the upper culvert 20 is provided with a mounting groove 13 so that the rubber pad (9, 14, 24) can be easily mounted.