Prefabricated culvert

Abstract

The utility model relates to a prefabricated culvert. The prefabricated culvert is formed by connecting a plurality of prefabricated culvert bodies, the guide piers are arranged at one ends of the prefabricated culvert bodies, the guide grooves matched with the guide piers are formed in the other ends of the prefabricated culvert bodies, and it is guaranteed that the prefabricated culvert bodies can be accurately in butt joint under the action of external force. The pulling grooves are formed in the two sides of the prefabricated culvert bodies, the vertical pulling rods are arranged in the pulling grooves, the pulling rods of the two prefabricated culvert bodies are connected through the electric hoists, and rapid installation of the prefabricated culvert can be achieved. Embedded bars are arranged at one ends of the prefabricated culvert bodies, corresponding embedded bar holes are formed in the other ends of the prefabricated culvert bodies, and the adjacent prefabricated culvert bodies are connected through embedded bars. The wedge block grooves and the wedge blocks are arranged at the bottom of the prefabricated culvert body, the elevation of the bottom of the culvert can be further adjusted, the sealing degree of the prefabricated culvert is improved, and the risk of water leakage at joints is reduced. According to the design, the connection strength, the sealing performance, the installation precision and the construction efficiency of the culvert are improved, and the defects of an existing prefabricated culvert technology are overcome.

Description

Technical Field

[0001] The utility model belongs to the technical field of culverts, in particular to a prefabricated assembled culvert. Background Art

[0002] As an important municipal infrastructure, prefabricated culverts are widely used in roads, railways, water conservancy projects, etc. Traditional culvert construction methods mostly use cast-in-place concrete structures. Although this method has certain stability and reliability, it has a long construction period, is greatly affected by climate, is difficult to ensure construction quality, and requires a large amount of on-site construction space and human resources.

[0003] In recent years, the application of prefabricated structures in various projects has become increasingly widespread, and the prefabricated construction of culverts has gradually received attention. Prefabricated culverts are prefabricated in factories. The various components of the culvert are produced in the factory and then transported to the construction site for assembly. Although prefabricated culverts are widely used, they also face some technical challenges in practical applications. The sealing of existing prefabricated culvert joints is often poor. This is mainly because prefabricated culverts are difficult to adjust during installation, which makes the gaps of traditional prefabricated culvert components at the joints too large and uneven. Simply relying on fillers to fill will cause water seepage problems. Filling by grouting and other methods will seriously increase the construction period of prefabricated culverts. Therefore, there is an urgent need for a prefabricated culvert with a more convenient installation process and higher installation accuracy to solve this problem. Utility Model Content

[0004] The purpose of the utility model is to provide a prefabricated assembled culvert to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a prefabricated assembled culvert, composed of a plurality of prefabricated culvert bodies, wherein a guide pier is provided at one end of the prefabricated culvert body, a guide groove is provided at the other end, a collection groove is provided on each of the side walls on both sides of the prefabricated culvert body, a vertical collection rod is provided in the collection groove, a vertical pad is provided on each side of the collection groove, a plurality of embedded bars are provided at one end of the guide pier of the prefabricated culvert body, a bar embedding hole is provided at one end of the guide groove of the prefabricated culvert body, a plurality of wedge block grooves are provided at the bottom of the prefabricated culvert body, and triangular wedge blocks can be inserted into the wedge block grooves.

[0006] As a preferred embodiment of the present invention, the outer edge of the guide pier and the inner edge of the guide groove have bevels with the same inclination angle, and the shape and size of the guide groove match those of the guide pier.

[0007] As a preferred embodiment of the present invention, the center height of the draw groove is half of the height of the prefabricated culvert body.

[0008] As a preferred embodiment of the present invention, the side edges of both sides of the draw groove are inclined at an angle.

[0009] As a preferred embodiment of the present invention, the tension rod is anchored in the prefabricated culvert body in the vertical direction.

[0010] As a preferred embodiment of the present invention, the pad protrudes from the side wall of the prefabricated culvert.

[0011] As a preferred implementation mode of the utility model, the size and position of the anchor hole match the embedded reinforcement.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the prefabricated assembled culvert proposed by the utility model realizes high-precision docking by using electric hoists and iron chains for precise pulling and adjustment, simplifies the construction process, and makes the operation of workers more convenient. The block groove and the block are used in combination to fine-tune the height of the component according to the actual situation on site, so as to ensure the overall flatness and structural integrity of the culvert. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the positive direction structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the reverse direction structure of the utility model;

[0015] Figure 3 It is a side view of the utility model;

[0016] Figure 4 It is a side view of the installation process of the utility model;

[0017] Figure 5 It is a partial schematic diagram of the installation process of the utility model;

[0018] Among them: 1. Prefabricated culvert body, 2. Guide pier, 3. Retracting groove, 4. Retracting rod, 5. Pad, 6. Embedded reinforcement, 7. Guide groove, 8. Rebar embedding hole, 9. Block groove, 10. Block, 11. Sealing strip. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-5 , a specific implementation of the utility model is:

[0021] like Figure 1-3 As shown, a prefabricated assembled culvert is formed by connecting a plurality of prefabricated culvert bodies 1. The prefabricated culvert body 1 is a reinforced concrete structure. A lifting ring is embedded in the top of the prefabricated culvert body 1. A guide pier 2 is provided at one end of the prefabricated culvert body 1, and a guide groove 7 matching the shape and size of the guide pier 2 is provided at the other end. The outer edge of the guide pier 2 and the inner edge of the guide groove 7 have bevels with the same inclination angle, so that the two prefabricated culvert bodies can adjust their positions when they are connected end to end under the action of external force. A draw groove 3 is provided on each side wall of the prefabricated culvert body 1. The center height of the draw groove 3 is half the height of the prefabricated culvert body 1. The side edges of the draw groove 3 in the horizontal direction are bevels with a certain angle. A vertical draw rod 4 is provided in the draw groove 3. The draw rod 4 is anchored in the prefabricated culvert body 1 in the vertical direction. A vertical pad 5 is provided on both sides of the draw groove 3. The pad 5 protrudes from the side wall of the prefabricated culvert body 1. The prefabricated culvert body 1 is provided with a plurality of embedded bars 6 at one end of the guide pier 2, and the prefabricated culvert body 1 is provided with a reinforcing bar hole 8 at one end of the guide groove 7, which is consistent with the size and position of the embedded bars 6. The bottom of the guide groove 7 is provided with a ring-shaped closed sealing strip 11.

[0022] like Figure 4-5 As shown, when two prefabricated culvert bodies 1 are connected end to end, an electric hoist and an iron chain are used to connect the tension rods 4 on the same side of the two prefabricated culvert bodies 1. The electric hoist tightens the iron chain to pull the rear prefabricated culvert body 1 closer to the front prefabricated culvert body 1. The guide pier 2 is coupled with the guide groove 7 to play a positioning role. The embedded reinforcement 6 is inserted into the reinforcement hole 8 to stably connect the two prefabricated culvert bodies 1. A plurality of wedge grooves 9 are provided at the bottom of the prefabricated culvert body 1. According to the installation conditions of the two prefabricated culvert bodies 1 on site, triangular wedges 10 are inserted into different wedge grooves 9, and the ends of the wedges 10 are knocked to raise the height of the prefabricated culvert body 1, so that the connection between the two sections of the prefabricated culvert body 1 is more precise and the risk of water seepage is reduced.

[0023] In one embodiment of the present invention, the following steps are used to complete the installation of the prefabricated culvert:

[0024] Step 1: Clean the culvert installation site, lay sand and gravel at the culvert installation location, and level the base surface to the culvert installation design elevation.

[0025] Step 2: Lift the first prefabricated culvert 1 to the designed position, adjust its direction and spatial position, and then fix it to the base surface with short steel bars.

[0026] Step three: lift the next prefabricated culvert body 1 and place it behind the previous prefabricated culvert body 1, inject rebar embedding glue into the rebar embedding hole 8 of the previous prefabricated culvert body 1, use an electric hoist and an iron chain to connect the pull rods on both sides of the two prefabricated culvert bodies 1, and start the two electric hoists to tighten the iron chains at the same time to make the next prefabricated culvert body 1 move forward. During the process, use steel pipes to adjust the embedded rebar 6 so that it is inserted into the rebar embedding hole 8.

[0027] Step 4: After the rear prefabricated culvert body 1 is close to the front prefabricated culvert body 1, check the joint between the two prefabricated culvert bodies 1, judge the relative height of the two prefabricated culvert bodies 1 by the size of the joint, insert the wedge 10 into the wedge groove 9 of the rear prefabricated culvert body 1, and continue to operate the electric hoist to tighten the iron chain to make the two prefabricated culvert bodies 1 fit together.

[0028] Step 5: Repeat steps 3 and 4 until the length of the installed prefabricated culvert body 1 reaches the design requirements of the culvert.

[0029] Step 6: Apply polysulfide sealant to the joints of two adjacent prefabricated culvert bodies 1 , and apply waterproof coating to the outer sides of all prefabricated culvert bodies 1 .

[0030] Step 7: After the anchor glue solidifies, take out all the wedges 10, reserve a certain space on both sides of the prefabricated culvert body 1 to build brick membranes, pour high-strength cement grouting material, remove the brick membranes after the cement solidifies, and complete the installation of the prefabricated assembled culvert.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A prefabricated culvert, characterized in that: The invention is composed of a plurality of prefabricated culvert bodies (1), wherein a guide pier (2) is provided at one end of the prefabricated culvert body (1), and a guide groove (7) is provided at the other end. A draw groove (3) is provided on each of the two side walls of the prefabricated culvert body (1), a vertical draw rod (4) is provided in the draw groove (3), and a vertical pad (5) is provided on each of the two sides of the draw groove (3). The prefabricated culvert body (1) is provided with a plurality of embedded bars (6) at one end of the guide pier (2), and a bar embedding hole (8) is provided at one end of the guide groove (7). The bottom of the prefabricated culvert body (1) is provided with a plurality of block grooves (9), and triangular blocks (10) can be inserted into the block grooves (9).

2. A prefabricated culvert according to claim 1, characterized in that: The outer edge of the guide pier (2) and the inner edge of the guide groove (7) have bevels with the same inclination angle, and the shape and size of the guide groove (7) match those of the guide pier (2).

3. The prefabricated culvert according to claim 1, characterized in that: The center height of the draw groove (3) is half the height of the prefabricated culvert body (1).

4. The prefabricated culvert according to claim 1, characterized in that: The side edges of the draw groove (3) are inclined at bevel angles.

5. The prefabricated culvert according to claim 1, characterized in that: The tension rod (4) is anchored in the prefabricated culvert body (1) in the vertical direction.

6. The prefabricated culvert according to claim 1, characterized in that: The pad (5) protrudes from the side wall of the prefabricated culvert (1).

7. The prefabricated culvert according to claim 1, characterized in that: The size and position of the reinforcing bar embedding hole (8) match those of the embedded reinforcing bar (6).

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