Combined support system for construction of box culvert in flood season of river channel

Abstract

The utility model relates to the technical field of culvert construction, and the utility model discloses a kind of combined support system of river flood season box culvert construction, comprising: first column, second column, cushion piece and disc buckle frame, first column is located at the downside of second column, first column and second column are detachably connected, to the combination of first column and second column as support column, support column is arranged along river array, cushion piece is set on support column, disc buckle frame is set on cushion piece.The combined support system is configured with support column and cushion piece to raise disc buckle frame, the spacing of the relatively dense disc buckle frame is reduced after being raised, the resistance of river bottom side is reduced, the flow gap of river is increased, the situation that river is blocked during flood season can be effectively reduced, the design of detachable connection of first column and second column, after the completion of box culvert, first column and second column are disassembled, and support column is conveniently disassembled.

Description

Technical Field

[0001] This utility model relates to the field of culvert construction technology, and in particular to a combined support system for box culvert construction during the flood season in river channels. Background Technology

[0002] When pouring the top slab of a permanent box culvert in a river channel, a support structure is needed to support the bottom of the pouring formwork. The existing technology uses a disc-lock steel pipe frame support, but the gaps between the steel pipes are small. During the flood season, when the river flows through, large stones or other floating objects can get stuck between the steel pipes, causing siltation in the river channel. Utility Model Content

[0003] The present invention aims to improve at least one technical problem in the background art.

[0004] This utility model provides a combined support system for box culvert construction during the flood season in river channels, including: The system comprises a first column, a second column, a pad, and a disc buckle frame. The first column is located below the second column and the first and second columns are detachably connected. The combination of the first and second columns forms a support column, which is arranged in an array along the river channel. The pad is placed on the support column, and the disc buckle frame is placed on the pad.

[0005] The beneficial effects of this utility model are as follows: This combined support system uses support columns and pads to erect the disc buckle frame. The relatively densely spaced disc buckle frames reduce the obstruction on the bottom of the river channel and increase the flow clearance of the river channel, which can effectively reduce the occurrence of siltation in the river channel during the flood season. The design of the first column and the second column being detachably connected allows the support column to be easily disassembled after the box culvert is completed by separating the first column and the second column.

[0006] As a sub-solution of the above technical solution, specifically, the padding component includes longitudinal beams and transverse beams. The longitudinal beams extend longitudinally and are fixed to the top side of the second column, and the transverse beams extend laterally and are fixed to the top side of the longitudinal beams. The transverse beams and the longitudinal beams form a mesh structure, and the disc buckle frame is disposed on the mesh structure. The padding component is configured in the form of a mesh structure including longitudinal beams and transverse beams, which expands the support range of the support column and provides sufficient installation positions for the disc buckle frame.

[0007] As a sub-solution of the above technical solution, the longitudinal beams in the padding component need to be arranged along the extension direction of the river channel. If the deviation is too large, it may lead to insufficient support during the casting of the box culvert. Therefore, the support column also includes a top support column, which is located at the top of the supported column. The top and bottom ends of the top support column are respectively provided with an upper flange and a lower flange. The upper flange is provided with a directional groove, and the lower flange is detachably connected to the second column. The directional groove on the top support column allows the longitudinal beams to be placed in the directional groove during arrangement, which can limit the overall extension direction of the longitudinal beams and better ensure the consistency between the extension direction of the longitudinal beams and the extension direction of the river channel.

[0008] In this embodiment, the extension direction of the directional grooves for each support column can be determined through detailed exploration and planning before construction. During the construction planning phase, based on exploration data, the positioning points of the support columns and the arrangement direction of the longitudinal beams on each support column are pre-marked on the construction drawings. During actual construction, according to the specific arrangement direction of the directional grooves, pre-positioning measuring points are set up on the river channel. The line connecting the central axis of the support column and the measuring point is used as a reference line. The extension angle of the directional groove is determined by the angle between the side of the directional groove and the reference line, or by using the previous placement groove as a reference. In this embodiment, two adjacent longitudinal beams are placed side-by-side in the directional groove and fixed together by welding. The crossbeams are also fixed to each longitudinal beam by welding. After the box culvert casting is completed, it is disassembled using an angle grinder or flame cutting.

[0009] As a sub-solution of the above technical solution, the lower flange and the second column are detachably connected via an angle-adjusting structure, allowing the horizontal swing direction of the top support column to be adjusted. This horizontal swing adjustment of the top support column allows for fine-tuning of its angle after the entire support column is installed, facilitating the maintenance of a relatively precise extension direction of the directional groove.

[0010] As a sub-solution of the above technical solution, the angle-adjusting structure includes a first through hole, an arc-shaped through groove, a fixing bolt, and a fixing nut. A third flange is provided on the top side of the second column, and the arc-shaped through groove is disposed on the third flange. The fixing bolt passes through the first through hole and the arc-shaped through groove and is threadedly connected to the fixing nut. Through the first through hole, the arc-shaped through groove, the fixing bolt, and the fixing nut, the fixing of the top support column can be easily released to adjust the rotation angle of the top support column, and after adjusting the rotation angle, the column can be repositioned. As a sub-solution of the above technical solution, the longitudinal beam is a double-I-beam. Double-I-beams are a commonly used composite component in engineering structures, connected by welding two I-beams back-to-back, thereby increasing load-bearing capacity. In this embodiment, the double-I-beam is formed by welding C-shaped steel back-to-back. Using double-I-beams for the longitudinal beam results in higher torsional strength, better stability, and improved deformation capacity.

[0011] As a sub-solution of the above technical solution, the second column and the first column are connected by bolts. Attached Figure Description

[0012] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a structural schematic diagram of a combined support system for box culvert construction during the flood season in a river channel, according to this utility model.

[0013] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0014] Figure 3 for Figure 1 A magnified view of a section at point C.

[0015] Figure 4 This is a schematic diagram showing the support column projected upwards from the second flange.

[0016] In the attached image: 11-First column; 12-Second column; 121-Third flange; 13-Top support column; 131-Upper flange; 1311-Oriented groove; 132-Lower flange; 2-Push-up piece; 21-Longitudinal beam; 22-Cross beam; 3-Dial buckle frame; 42 - Arc-shaped through groove; 43 - Fixing bolt; 44 - Fixing nut. Detailed Implementation

[0017] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0018] The following is combined Figures 1 to 4 The embodiments of this utility model are described below.

[0019] This embodiment relates to a combined support system for the construction of box culverts during the flood season in river channels. When pouring the top slab of the box culvert, it provides support for the disc-lock scaffold 3 (or disc-lock type scaffolding) and reduces the problem of river siltation while providing support.

[0020] The conventional construction sequence for river box culverts is as follows: First, the river channel is blocked and cleared; then, the bottom slab of the box culvert is poured and compacted; next, the formwork for the central and side walls is erected; then, the central and side walls of the box culvert are poured; after that, a scaffolding system 3 is erected on the bottom slab of the box culvert, and the upper formwork is fixed on the scaffolding system 3; finally, the top slab of the box culvert is poured on the upper formwork, completing the construction of the river box culvert. When box culvert construction encounters the flood season of the river, blocking the river channel for construction will raise the water level of other rivers in the basin, putting pressure on the flood control and waterproofing of the river. In order to minimize the time of river channel blockage during the flood season, this utility model provides a combined support system to reduce the time of river channel blockage during the construction of the box culvert.

[0021] Specifically, a combined support system for box culvert construction during the flood season in this embodiment includes: The system comprises a first column 11, a second column 12, a pad 2, and a disc buckle frame 3. The first column 11 is located below the second column 12. The first column 11 and the second column 12 are detachably connected. The combination of the first column 11 and the second column 12 forms a support column. The support columns are arranged in an array along the river channel. The pad 2 is disposed on the support column, and the disc buckle frame 3 is disposed on the pad 2.

[0022] The combined support system uses support columns and pads 2 to support the cast-in-place disc-lock frame 3. The densely spaced disc-lock frames 3 reduce the obstruction on the bottom of the river channel and increase the flow clearance of the river channel, which can effectively reduce the occurrence of siltation in the river channel during the flood season. The design of the first column 11 and the second column 12 being detachably connected allows the support columns to be easily disassembled after the box culvert is completed by separating the first column 11 and the second column 12.

[0023] Specifically, the pad 2 includes a longitudinal beam 21 and a transverse beam 22. The longitudinal beam 21 extends longitudinally and is fixed to the top side of the second column 12, and the transverse beam 22 extends transversely and is fixed to the top side of the longitudinal beam 21. The transverse beam 22 and the longitudinal beam 21 form a mesh structure, and the disc buckle frame 3 is disposed on the mesh structure. The pad 2 is configured in the form of a mesh structure including the longitudinal beam 21 and the transverse beam 22, which expands the support range of the support column and provides sufficient installation position for the disc buckle frame 3.

[0024] The longitudinal beams 21 in the pad 2 need to be arranged along the extension direction of the river channel. If the deviation is too large, it will easily lead to insufficient support during the casting of the box culvert. Therefore, the support column also includes a top support column 13, which is located at the top of the supported column. The top and bottom ends of the top support column 13 are respectively provided with an upper flange 131 and a lower flange 132. The upper flange 131 is provided with a directional groove 1311, and the lower flange 132 is detachably connected to the second column 12. The directional groove 1311 on the top support column 13 allows the longitudinal beams 21 to be placed in the directional groove 1311 during arrangement, which can limit the overall extension direction of the longitudinal beams 21 and better ensure the consistency between the extension direction of the longitudinal beams 21 and the extension direction of the river channel.

[0025] In this embodiment, the extension direction of the directional groove 1311 of each support column can be determined through detailed exploration and planning before construction. During the construction planning stage, based on the exploration data, the positioning points of the support columns and the arrangement direction of the longitudinal beams 21 on each support column are pre-marked on the construction drawings. In the actual construction process, according to the specific arrangement direction of the directional groove 1311, pre-positioning measuring points are set on the river channel, and the line connecting the central axis of the support column and the measuring point is used as the reference line. The extension angle of the directional groove 1311 is determined by the angle between the side of the directional groove 1311 and the reference line, or by using the previous placement groove as a reference. In this embodiment, two adjacent longitudinal beams 21 are placed side by side in the directional groove 1311 and fixed together by welding. The crossbeam 22 is also fixed to each longitudinal beam 21 by welding. After the box culvert is cast, it is disassembled by means of an angle grinder or flame cutting.

[0026] The lower flange 132 and the second column 12 are detachably connected via an angle-adjusting structure, allowing the horizontal swing direction of the top support column 13 to be adjusted. This horizontal adjustment of the top support column 13 allows for fine-tuning of its angle after the entire support column is installed, easily ensuring that the extension direction of the directional groove 1311 remains relatively accurate.

[0027] For details, see Figure 4 , Figure 4 The diagram shows the support column projected upwards from the second flange (i.e., point B). The angle-adjusting structure includes a first through hole, an arc-shaped through groove 42, a fixing bolt 43, and a fixing nut 44. A third flange 121 is provided on the top side of the second column 12. The arc-shaped through groove 42 is disposed on the third flange 121. The fixing bolt 43 passes through the first through hole and the arc-shaped through groove 42 and is threadedly connected to the fixing nut 44. Through the first through hole, the arc-shaped through groove 42, the fixing bolt 43, and the fixing nut 44, the fixing of the top support column 13 can be easily released, and the rotation angle of the top support column 13 can be adjusted. After adjusting the rotation angle, the column can be repositioned. The longitudinal beam 21 is a double-I-beam. Double-I-beams are a common type of composite structural member in engineering structures. They are connected by welding two I-beams back-to-back, thereby increasing load-bearing capacity. In this embodiment, the double-I-beam is formed by welding C-shaped steel back-to-back together. The use of double-I-beams in the longitudinal beam 21 provides higher torsional strength, better stability, and improved deformation capacity.

[0028] The second column 12 and the first column 11 are connected by bolts. The connection between the second column 12 and the first column 11 by bolts makes it relatively easy to assemble and disassemble the first column 11 and the second column 12.

[0029] In this embodiment, the support column is composed of a first column 11, a second column 12, and a top support column 13 connected sequentially from bottom to top. In other embodiments, the support column may also adopt other composition forms, but all of them include at least a second column 12 and a top support column 13. When the support column includes only a second column 12 and a top support column 13, the second column 12 can also be regarded as the first column 11. In this case, the second column 12 and the first column 11 play the same supporting role.

[0030] The preferred embodiments of the present invention have been described in detail above, but the present disclosure is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of the present disclosure.

[0031] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

Claims

1. A combined support system for box culvert construction during the flood season in river channels, characterized in that: include: The first column (11), the second column (12), the pad (2), and the disc buckle frame (3) are arranged in an array along the river channel. The first column (11) is located below the second column (12). The first column (11) and the second column (12) are detachably connected. The combination of the first column (11) and the second column (12) serves as a support column. The support columns are arranged in an array along the river channel. The pad (2) is placed on the support column. The disc buckle frame (3) is placed on the pad (2).

2. The combined support system for box culvert construction during the flood season in a river channel according to claim 1, characterized in that: The pad (2) includes a longitudinal beam (21) and a transverse beam (22). The longitudinal beam (21) extends longitudinally and is fixed to the top side of the second column (12). The transverse beam (22) extends transversely and is fixed to the top side of the longitudinal beam (21). The transverse beam (22) and the longitudinal beam (21) form a mesh structure. The disc buckle frame (3) is set on the mesh structure.

3. The combined support system for box culvert construction during the flood season in a river channel according to claim 2, characterized in that: The support column also includes a top support column (13), which is located at the top of the supported column. The top and bottom ends of the top support column (13) are respectively provided with an upper flange (131) and a lower flange (132). The upper flange (131) is provided with a directional groove (1311), and the lower flange (132) is detachably connected to the second column (12).

4. The combined support system for box culvert construction during the flood season in a river channel according to claim 3, characterized in that: The lower flange (132) and the second column (12) are detachably connected by an angle-adjusting structure, making the horizontal swing direction of the top support column (13) adjustable.

5. The combined support system for box culvert construction during the flood season in a river channel according to claim 4, characterized in that: The angle adjustment structure includes a first through hole, an arc-shaped through groove (42), a fixing bolt (43), and a fixing nut (44). The top side of the second column (12) is provided with a third flange (121). The arc-shaped through groove (42) is provided on the third flange (121). The fixing bolt (43) passes through the first through hole and the arc-shaped through groove (42) and is threadedly connected to the fixing nut (44).

6. The combined support system for box culvert construction during the flood season in a river channel according to claim 2, characterized in that: The longitudinal beam (21) is a double-I-beam.

7. The combined support system for box culvert construction during the flood season in a river channel according to claim 1, characterized in that: The second column (12) and the first column (11) are connected by bolts.

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