Pipeline burying construction method

Abstract

The invention discloses a pipeline burying construction method. The method comprises the construction process that a vertical plugging plate obtains stress support from the outside to abut against a pipeline opening for plugging, and a pipeline opening plugging construction structure is shown. The plugging plate is stressed and supported from the outside to abut against the pipe orifice of the pipeline for plugging, so that the suspended pipeline is prevented from being pulled down by other loads to deform, and the problem that the suspended pipeline is pulled down to deform due to weight increase caused by the fact that the whole plugging device is arranged on the pipeline is solved.

Description

Technical Field

[0001] The invention relates to a pipeline burying construction method and belongs to the technical field of construction. Background Art

[0002] During the construction of a power station, it is necessary to bury pipelines in the construction site for laying cables, etc. When the pipeline is buried over a long distance, it cannot be laid all at once, resulting in temporary leakage from the pipeline opening. In order to prevent foreign objects such as stones or soil from entering from the open pipeline opening at the construction site, the pipeline opening needs to be blocked.

[0003] Existing pipe opening plugging technologies, such as a pipe opening plugging device for pre-buried pipes for water and electricity in buildings with Chinese patent publication number CN213268391U, the disclosed technology is to use a connecting rod to push the rubber pad at the end of the stabilizing plate against the inner wall of the pipe opening of the pre-buried pipe to achieve the installation of the entire plugging device with the pipe as the force base. Although the plugging device as a whole can plug the pipe opening in the pipe, for pre-buried and suspended pipes with a long length, the increase in weight caused by the plugging device as a whole on the pipe will pull down the suspended pipe and cause it to deform. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a pipeline burying construction method.

[0005] The present invention is achieved through the following technical solutions.

[0006] The present invention provides a pipeline burying construction method, comprising:

[0007] The erected plugging plate obtains force support from the outside to block the pipe opening, presenting the construction process of the pipe opening blocking construction structure.

[0008] The construction process includes two steps of laying and blocking which are carried out in sequence;

[0009] The laying steps are: digging a trench on the bottom rock and soil layer, laying the lower half of the gravel layer in the trench and then laying the pipeline, at this time, the lower half of the gravel layer is inclined from the end of the trench to have an inclined part, and the upper half of the gravel layer is laid, so that the gravel layer composed of gravel wraps around the pipeline to provide a rigid surrounding layer, and at this time, the pipe mouth of the pipeline extends and is suspended in the space of the bottom rock and soil layer.

[0010] The blocking step is as follows: the blocking plate is pressed against the pipe opening, and the back side of the blocking plate is erected and tightly attached to the pipe opening by means of the first external force component and / or the second external force component to block the pipe opening.

[0011] The pipeline opening blocking construction structure comprises:

[0012] The bottom rock layer with trenches;

[0013] The pipe mouth of the pipe extends and is suspended in the space of the bottom rock and soil layer; there is a backfill layer on the bottom rock and soil layer, and the backfill layer is pressed on the upper part of the pipe;

[0014] The plugging plate is supported by external force and is in an upright state to seal the pipe opening.

[0015] The blocking plate is supported by the first external force component and / or the second external force component from the outside and is in an upright state to block the pipe opening.

[0016] A crushed stone layer is laid in the groove of the bottom rock layer, the pipeline is located in the crushed stone layer, the backfill layer is pressed on the crushed stone layer in the upper part of the pipeline, and the crushed stone layer wraps around the pipeline to provide a rigid surrounding layer.

[0017] The first external force component comprises an oblique support and a support block.

[0018] The inclined support is installed at an angle, and the top end of the inclined support is supported on the middle part of the back side of the blocking plate away from the pipeline, and the bottom end of the inclined support is supported by a support block installed in the gravel layer. The support block is installed on the gravel layer to support the bottom position of the back side of the blocking plate away from the pipeline, so that the blocking plate obtains force support from the outside and is in an upright position close to the pipeline orifice for blocking.

[0019] The second external force component comprises a tension rod and a tie rope.

[0020] The tension rods are knocked and inserted into the backfill layer. There are two tension rods distributed on both sides of the sealing plate. The tension rods are tied to the upper and lower backs of both sides of the sealing plate through two tie ropes distributed at oblique angles, so that the sealing plate can obtain force support from the outside and be upright and close to the pipe mouth for sealing.

[0021] The beneficial effect of the present invention is that the sealing plate obtains force support from the outside to seal the pipe mouth, so that the suspended pipe will not be pulled down and deformed by other loads, solving the problem that the sealing device as a whole is on the pipe, which causes the added weight to pull down the suspended pipe and cause it to deform. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front structural schematic diagram of the present invention;

[0023] Figure 2 It is a side structural schematic diagram of the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of the present invention during construction;

[0025] In the figure: 1-bottom rock and soil layer; 11-groove; 2-gravel layer; 3-pipeline; 4-sealing plate; 5-inclined support; 6-resistance block; 7-support block; 8-backfill layer; 9-tension rod; 10-tie rope. DETAILED DESCRIPTION

[0026] The technical solution of the present invention is further described below, but the scope of protection claimed is not limited to the description.

[0027] like Figure 1 to Figure 2 shown.

[0028] A pipeline opening plugging construction structure of the present application includes:

[0029] A bottom rock layer 1 is provided to bear the bottom force, and a groove 11 is provided in the bottom rock layer 1 for burying the pipeline 3. A crushed stone layer 2 is laid in the groove 11 of the bottom rock layer 1, and the pipeline 3 is located in the crushed stone layer 2. The crushed stone layer 2 wraps around the pipeline 3 to provide a rigid surrounding layer, and the pipe mouth of the pipeline 3 extends and is suspended in the space of the bottom rock layer 1.

[0030] It also includes a plugging plate 4 made of a board such as a wood board, which abuts against the end of the pipe opening of the pipe 3. An inclined support 5 is installed obliquely on the back of the plugging plate 4 away from the pipe 3, and the top of the inclined support 5 is supported in contact with the middle of the back of the plugging plate 4, and the bottom of the inclined support 5 is supported by a stopper 6 installed in the gravel layer 2. The inclined support 5 is composed of a retractable telescopic rod.

[0031] It also includes a support block 7 made of stones, which is installed on the gravel layer 2 to support the bottom of the back side of the blocking plate 4 away from the pipeline 3, ensuring that the blocking plate 4 is in an upright position and close to the pipe opening of the pipeline 3 for blocking.

[0032] The gravel layer 2 in the upper part of the pipe 3 is backfilled with a backfill layer 8, which is composed of soil and stone. The backfill layer 8 is pressed on the gravel layer 2 in the upper part of the pipe 3; when there is no gravel layer 2, the backfill layer 8 is pressed on the upper part of the pipe 3. A tension rod 9 is knocked and inserted into the backfill layer 8, and the tension rod 9 corresponds to the upper and lower positions of the back of the tie-tie plugging plate 4 through two tie ropes 10 distributed at oblique angles. When there are oblique supports 5 and support blocks 7, the installation of tension rods 9 and tie ropes 10 plays a reinforcing role. The oblique supports 5 and support blocks 7 can be installed and function separately, and the tension rods 9 and tie ropes 10 can also be installed and function separately. The oblique supports 5 and support blocks 7 and tension rods 9 and tie ropes 10 can be installed and function at the same time.

[0033] The pipe mouth of the pipe 3 extending and suspended in the bottom rock and soil layer 1 is blocked by the sealing plate 4. The inclined support 5 and the support block 7 constitute a first external force component to support the sealing plate 4 from the outside of the pipe 3. At the same time, the tension rod 9 and the tie rope 10 constitute a second external force component to support the sealing plate 4 from the outside of the pipe 3. Since the sealing plate 4 obtains force support from the outside to block the pipe mouth of the pipe 3, the suspended pipe 3 will not be pulled down and deformed by other loads, which solves the problem that the sealing device as a whole is on the pipe, which causes the increased weight to pull down the suspended pipe and cause it to deform.

[0034] A pipeline burial construction method of the present application comprises:

[0035] Step 1: laying: a trench 11 is excavated on the bottom rock and soil layer 1, and the lower half of the gravel layer 2 is laid in the trench 11, and then the pipeline is laid. At this time, the lower half of the gravel layer 2 is laid with an inclined portion from the end of the trench 11, and the upper half of the gravel layer 2 is laid, so that the gravel layer 2 composed of gravel wraps around the pipeline 3 to provide a rigid surrounding layer. At this time, the pipe mouth of the pipeline 3 extends and is suspended in the space of the bottom rock and soil layer 1;

[0036] Step 2, blocking: the blocking plate 4 is pressed against the pipe opening of the pipe 3, and the back side of the blocking plate 4 is erected close to the pipe opening of the pipe 3 through the first external force component and / or the second external force component to block.

[0037] The vertical blocking plate 4 is pressed against the pipe mouth of the blocked pipe 3 through the first external force component and / or the second external force component, so that the pipe 3 extending and suspended in the space of the bottom rock and soil layer 1 will not be pulled down and deformed by other loads, thereby solving the problem that the blocking device as a whole is on the pipe, causing the increased weight to pull down the suspended pipe and cause deformation.

Claims

1. A pipeline burying construction method, characterized in that: include: The erected plugging plate (4) obtains force support from the outside to press against the pipe opening (3) to plug the pipe opening, presenting the construction process of the pipe opening plugging construction structure.

2. The pipeline burying construction method according to claim 1, characterized in that: The construction process includes two steps of laying and blocking which are carried out in sequence; The laying steps are as follows: a trench (11) is excavated on the bottom rock and soil layer (1), and the pipeline is laid after the lower half layer of the crushed stone layer (2) is laid in the trench (11), wherein the lower half layer of the crushed stone layer (2) is inclined from the end of the trench (11) to form an inclined portion, and the upper half layer of the crushed stone layer (2) is laid, so that the crushed stone layer (2) composed of crushed stones wraps around the pipeline (3) to provide a rigid surrounding layer, and at this time, the pipe mouth of the pipeline (3) extends and is suspended in the space of the bottom rock and soil layer (1); The blocking step is as follows: the blocking plate (4) is pressed against the pipe opening of the pipe (3), and the back side of the blocking plate (4) is erected and closely attached to the pipe opening of the pipe (3) by means of a first external force component and / or a second external force component to block the pipe opening.

3. The pipeline burying construction method according to claim 1 or 2, characterized in that: The pipeline opening blocking construction structure comprises: A bottom rock layer (1) provided with a groove (11); A pipeline (3), wherein the pipe mouth of the pipeline (3) extends and is suspended in the space of the bottom rock and soil layer (1); a backfill layer (8) is provided on the bottom rock and soil layer (1), and the backfill layer (8) is pressed on the upper part of the pipeline (3); The blocking plate (4) is supported by external forces and is in an upright state to block the pipe opening of the pipe (3).

4. The pipeline burying construction method according to claim 3, characterized in that: The blocking plate (4) is supported by external force through the first external force component and / or the second external force component and is in an upright state to block the pipe opening of the pipeline (3).

5. The pipeline burying construction method according to claim 3, characterized in that: A crushed stone layer (2) is laid in the groove (11) of the bottom rock layer (1), the pipeline (3) is located in the crushed stone layer (2), the backfill layer (8) is pressed on the crushed stone layer (2) in the upper part of the pipeline (3), and the crushed stone layer (2) wraps around the pipeline (3) to provide a rigid surrounding layer.

6. The pipeline burying construction method according to claim 4, characterized in that: The first external force component comprises an inclined support (5) and a support block (7); The inclined support (5) is installed at an angle, the top end of the inclined support (5) is supported on the middle of the back side of the blocking plate (4) away from the pipeline (3), the bottom end of the inclined support (5) is supported by a stop block (6) installed in the gravel layer (2), and the support block (7) is installed on the gravel layer (2) to support the bottom of the back side of the blocking plate (4) away from the pipeline (3), so that the blocking plate (4) obtains force support from the outside and is in an upright position close to the pipe mouth of the pipeline (3) for blocking.

7. The pipeline burying construction method according to claim 4, characterized in that: The second external force component comprises a tension rod (9) and a tie rope (10); The tension rod (9) is knocked and inserted into the backfill layer (8). The tension rods (9) are two and are distributed on both sides of the plugging plate (4). The tension rods (9) are tied to the upper and lower positions of the back of the two sides of the plugging plate (4) through two tie ropes (10) distributed at an oblique angle, so that the plugging plate (4) can obtain force support from the outside and be in an upright position close to the pipe mouth of the pipeline (3) for plugging.

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