Anti-floating device for fluid soil backfilling pipeline groove

Abstract

The utility model discloses an anti-floating device of fluid soil backfill pipeline groove, including arc-shaped bracket, vertical support rod and horizontal support rod, the arc-shaped bracket is pre-buried in the bottom of pipeline, the upper surface of the arc-shaped bracket is attached to the bottom of pipeline, and the vertical support rod is attached to the horizontal support rod. The two sides of the lower portion of the arc-shaped supporting groove are connected with a pipeline foundation bed through inclined positioning ribs, one end of the vertical supporting rod is arranged at the top end of a pipeline in a supporting mode, the other end of the vertical supporting rod is fixed to the horizontal supporting rod, the pipeline is laid in a groove, and the ends of the horizontal supporting rod are fixed to side slopes on the two sides of the groove. The anti-floating device for the fluid soil backfilling pipeline groove is simple in structure, convenient to construct and good in positioning effect; the pipeline can be prevented from floating and deviating in the backfilling process, and the supporting rods can be recycled and reused.

Description

Technical Field

[0001] This utility model relates to an anti-buoyancy device, and more particularly to an anti-buoyancy device for backfilling pipeline trenches with flowing soil. Background Technology

[0002] In urban municipal pipeline backfilling, medium-coarse sand is generally used. However, due to the limited space, manual vibration is difficult, and the compaction degree is hard to control. Existing processes use waste mud or slag as the main material, adding an appropriate amount of solidifying agent to prepare a fluid self-compacting material that can automatically fill trench gaps without vibration. However, the fluid soil will generate buoyancy on the pipeline, causing it to shift. Currently, the main anti-buoyancy measure is to fix the pipeline with a weight support at the top, but its effectiveness is very limited, and when the pipe diameter is large, it will cause deformation of the pipeline, affecting the installation quality. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an anti-buoyancy device for backfilling pipeline trenches with flowing soil, which can not only prevent the pipeline from floating or shifting during backfilling, but also allow the support rod to be recycled and reused.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is to provide an anti-buoyancy device for backfilling pipeline trenches with flowing soil, including an arc-shaped support groove, a vertical support rod and a horizontal support rod. The arc-shaped support groove is pre-embedded in the bottom of the pipeline, and the upper surface of the arc-shaped support groove is in contact with the bottom of the pipeline. The lower two sides of the arc-shaped support groove are connected to the pipeline foundation pad layer through oblique positioning ribs. One end of the vertical support rod is supported at the top of the pipeline, and the other end is fixed on the horizontal support rod. The pipeline is laid in the trench, and the end of the horizontal support rod is fixed on the slopes on both sides of the trench.

[0005] In the aforementioned anti-buoyancy device for backfilling pipeline trenches with flowing soil, the number of inclined positioning ribs is two, which are symmetrically cast in the pipeline bedding foundation.

[0006] The aforementioned anti-buoyancy device for backfilling pipeline trenches with flowing soil has each inclined positioning rib forming a 30° angle with the horizontal plane.

[0007] The aforementioned anti-buoyancy device for backfilling pipeline trenches with flowing soil includes an arc-shaped support groove made of elastic steel plate, an inclined positioning bar made of steel bar, and the arc-shaped support groove and the inclined positioning bar welded together.

[0008] In the aforementioned anti-buoyancy device for backfilling pipeline trenches with flowing soil, the vertical support rods and horizontal support rods are made of wood and are arranged perpendicularly to each other.

[0009] Compared with existing technologies, this utility model has the following advantages: The anti-buoyancy device for backfilling pipeline trenches with flowing soil provided by this utility model ensures that the anti-buoyancy device will not shift left or right through the pre-embedded positioning ribs at the bottom and the arc-shaped support groove, while the support rod prevents the pipeline from floating upwards, ensuring the fixing effect of the entire anti-buoyancy device, thereby significantly reducing the possibility of pipeline displacement during backfilling. The anti-buoyancy device of this utility model has a simple structure, is convenient to construct, and has a good positioning effect; it not only prevents the pipeline from floating or shifting during backfilling, but the support rod can also be recycled and reused. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the anti-buoyancy device for backfilling pipeline trenches with fluid soil according to this utility model;

[0011] Figure 2 This is a front view of the anti-buoyancy device of this utility model during pipeline installation.

[0012] Figure 3 This is a left view of the anti-buoyancy device of this utility model when used in pipeline installation.

[0013] The diagram is marked as follows:

[0014] 1. Arc-shaped support groove; 2. Diagonal positioning rib; 3. Pipe foundation pad; 4. Pipe; 5. Vertical support rod; 6. Horizontal support rod; 7. Trench. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the anti-buoyancy device for backfilling pipeline trenches with fluid soil according to this utility model; Figure 2 This is a front view of the anti-buoyancy device of this utility model during pipeline installation. Figure 3 This is a left view of the anti-buoyancy device of this utility model when used in pipeline installation.

[0017] Please see Figure 1 , Figure 2 and Figure 3 The present invention provides an anti-buoyancy device for backfilling pipeline trenches with flowing soil, comprising an arc-shaped support 1, a vertical support rod 5, and a horizontal support rod 6. The arc-shaped support 1 is pre-embedded in the bottom of the pipeline 4, and the upper surface of the arc-shaped support 1 is in contact with the bottom of the pipeline 4. The lower two sides of the arc-shaped support 1 are connected to the pipeline foundation pad 3 through oblique positioning ribs 2. One end of the vertical support rod 5 is supported at the top of the pipeline 4, and the other end is fixed on the horizontal support rod 6. The pipeline 4 is laid in the trench 7, and the end of the horizontal support rod 6 is fixed on the slopes on both sides of the trench 7.

[0018] The anti-buoyancy device provided by this utility model has a pre-embedded bottom arc-shaped support groove 1 and inclined positioning ribs 2 to ensure that the anti-buoyancy device will not shift left or right, while the vertical support rod 5 prevents the pipe 4 from floating upward, ensuring the fixing effect of the entire anti-buoyancy device, thereby significantly reducing the possibility of pipe shifting during backfilling and improving installation quality. The anti-buoyancy device of this utility model has a simple structure and is easy to construct. The specific steps are as follows: First, excavate the pipe trench, support and protect the trench 7, fix the ends of the horizontal support rod 6 to the slopes on both sides of the trench 7, and temporarily fix the inclined positioning ribs 2. Then, construct the pipe foundation pad 3. After the foundation is completed, weld the arc-shaped support groove 1 to the inclined positioning ribs 2. After welding, place the pipe 4 on the pipe foundation pad 3 and the arc-shaped support groove 1 to complete the fixing of the anti-buoyancy device at the bottom of the pipe. Then, install the vertical support rod 6, and finally pour concrete to complete the installation of the pipe 4.

[0019] The anti-buoyancy device provided by this utility model includes two inclined positioning ribs 2, which are symmetrically cast in the pipe bedding foundation 3; each inclined positioning rib 2 forms a 30° angle with the horizontal plane.

[0020] The anti-buoyancy device provided by this utility model includes an arc-shaped support groove 1 made of elastic steel plate, an inclined positioning rib 2 made of steel bar, and the arc-shaped support groove 1 and the inclined positioning rib 2 welded together.

[0021] The anti-buoyancy device provided by this utility model includes vertical support rod 5 and horizontal support rod 6 made of wood, which have a certain strength and can also protect the pipeline from damage; the vertical support rod 5 and horizontal support rod 6 are arranged perpendicular to each other; the vertical balance rod 5 and the horizontal support rod 6 are recyclable and reusable.

[0022] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications and improvements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the claims.

Claims

1. An anti-buoyancy device for backfilling pipeline trenches with flowing soil, characterized in that, The system includes an arc-shaped support groove (1), a vertical support rod (5), and a horizontal support rod (6). The arc-shaped support groove (1) is pre-embedded at the bottom of the pipe (4). The upper surface of the arc-shaped support groove (1) is in contact with the bottom of the pipe (4). The lower two sides of the arc-shaped support groove (1) are connected to the pipe foundation pad (3) by oblique positioning ribs (2). One end of the vertical support rod (5) is supported at the top of the pipe (4), and the other end is fixed on the horizontal support rod (6). The pipe (4) is laid in the trench (7), and the end of the horizontal support rod (6) is fixed on the slopes on both sides of the trench (7).

2. The anti-buoyancy device for backfilling pipeline trenches with flowing soil as described in claim 1, characterized in that, The number of the inclined positioning ribs (2) is two, which are symmetrically cast in the pipe foundation cushion layer (3).

3. The anti-buoyancy device for backfilling pipeline trenches with flowing soil as described in claim 2, characterized in that, Each diagonal positioning bar (2) forms a 30° angle with the horizontal plane.

4. The anti-buoyancy device for backfilling pipeline trenches with flowing soil as described in claim 1, characterized in that, The arc-shaped support groove (1) is made of elastic steel plate, the oblique positioning rib (2) is a steel bar, and the arc-shaped support groove (1) and the oblique positioning rib (2) are welded together.

5. The anti-buoyancy device for backfilling pipeline trenches with flowing soil as described in claim 1, characterized in that, The vertical support rod (5) and the horizontal support rod (6) are wooden support rods, and the vertical support rod (5) and the horizontal support rod (6) are set perpendicular to each other.

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