Turnover supporting tool for breaking process of large-diameter concrete pipeline

Abstract

The utility model relates to a supporting tool, belongs to the technical field of underground pipeline breaking, and particularly relates to a turnover supporting tool in the breaking process of a large-diameter concrete pipeline, which comprises a pipeline main body, and I-shaped steel I is arranged at the upper end of the inner side of the pipeline main body. I-shaped steel II is arranged at the lower end of the inner side of the pipeline main body; the first I-shaped steel and the second I-shaped steel are attached to the interior of the pipeline body, the multiple longitudinal supporting rods, the jacking, the sleeve and the threaded connecting rods form the supporting assembly, when the pipeline body is broken, supporting can be conducted, the municipal road above the pipeline body is prevented from sinking and collapsing, and the pipeline body is prevented from being damaged through cooperation between the threaded connecting rods and the sleeve and thread meshing. The height of the supporting assembly can be adjusted so as to be suitable for pipeline bodies with different diameters, and the overall applicability is improved; the problems that in the existing breaking process, the upper portion of a pipeline body is prone to sinking and collapsing, and safety accidents and economic losses are caused are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of underground pipeline demolition, in particular to a reusable support tooling for the demolition process of large-diameter concrete pipelines. Background Art

[0002] The concrete pipeline is an abandoned sewage pipe with a burial depth of more than 8m. There is an existing municipal road above the pipeline. The abandoned sewage pipe is within the scope of pipe jacking operation, which affects the pipe jacking. It needs to be demolished and replaced in advance. The methods of open excavation or replacement with pipes of the same diameter are not suitable for the surrounding environment and site conditions. Therefore, the process of manual internal demolition needs to be adopted.

[0003] In order to prevent risks such as ground settlement caused by the collapse of the top of the pipeline, it is necessary to make a reusable support tooling to support the top pipe wall at any time during the backstepping demolition process, so as to control the collapse and settlement. Summary of the Utility Model

[0004] In order to solve the above technical problems, the utility model provides a reusable support tooling for the demolition process of large-diameter concrete pipelines. The first I-beam and the second I-beam are attached to the inside of the pipeline main body, and stress is transmitted through multiple top seats. A support assembly is composed of multiple longitudinal support rods, top supports, sleeves and threaded connecting rods. When the pipeline main body is demolished, it can be supported to prevent the municipal road above the pipeline main body from subsiding and collapsing. Through the cooperation between multiple threaded connecting rods and sleeves, and using thread meshing, the height of the support assembly can be adjusted to be applicable to pipeline main bodies of different diameters, improving the overall applicability.

[0005] The technical solution for achieving the purpose of the utility model is: a reusable support tooling for the demolition process of large-diameter concrete pipelines, including a pipeline main body. The first I-beam is arranged at the upper end inside the pipeline main body, and the second I-beam is arranged at the lower end inside the pipeline main body. It further includes: a support assembly, which is arranged between the first I-beam and the second I-beam; the support assembly includes multiple top seats fixed to the lower side of the first I-beam, multiple longitudinal support rods fixed to the upper side of the second I-beam. The upper ends of the multiple longitudinal support rods are all fixed with top supports, the inner sides of the multiple top supports are all fixed with sleeves, and the inner sides of the multiple sleeves are all rotationally connected with threaded connecting rods through threads. The upper ends of the multiple threaded connecting rods are respectively movably connected with the multiple top seats.

[0006] In some embodiments, connecting rods are fixedly connected between the multiple longitudinal support rods.

[0007] In some embodiments, one of the longitudinal support rods is obliquely arranged.

[0008] In some embodiments, the multiple top seats are all U-shaped.

[0009] In some embodiments, multiple longitudinal support rods are specifically formed by welding two channel steels respectively.

[0010] In some embodiments, both ends of multiple jacks are arc-shaped.

[0011] Compared with the prior art, the remarkable advantages of this utility model are:

[0012] The first I-beam and the second I-beam of this utility model are attached to the inside of the pipeline main body, and stress transmission is carried out through multiple top seats. Multiple longitudinal support rods, jacks, sleeves and threaded rods form a support assembly. When the pipeline main body is broken, it can provide support to avoid subsidence and landslide of the municipal road above the pipeline main body. Through the cooperation between multiple threaded rods and sleeves, and using thread meshing, the height of the support assembly can be adjusted to be applicable to pipeline main bodies of different diameters, improving the overall applicability.

[0013] It solves the problem that during the existing backward breaking process, the area above the pipeline main body is prone to subsidence and landslide, causing safety accidents and economic losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The following further explains this utility model in conjunction with the drawings and embodiments:

[0015] Figure 1 is the overall front view structural schematic diagram provided by this utility model in one embodiment;

[0016] Figure 2 is the overall inner side view structural schematic diagram of the pipeline provided by this utility model in one embodiment;

[0017] Figure 3 is provided by this utility model in one embodiment Figure 2 The enlarged structural schematic diagram at position A in.

[0018] Description of the reference numerals in the drawings:

[0019] 1. Pipeline main body; 2. First I-beam; 3. Second I-beam; 4. Top seat; 5. Longitudinal support rod; 6. Jack; 7. Sleeve; 8. Threaded rod; 9. Connecting rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following details this utility model, and clearly and completely describes the technical solutions in the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, rather than all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this utility model.

[0021] The present utility model provides a reusable support tooling during the breaking process of large-diameter concrete pipes by means of improvement. The technical solution of the present utility model is as follows:

[0022] As Figures 1 - 3 shown, a reusable support tooling during the breaking process of large-diameter concrete pipes includes a pipe main body 1. At the upper end position inside the pipe main body 1, a first I-beam 2 is provided, and at the lower end position inside the pipe main body 1, a second I-beam 3 is provided. It further includes: a support assembly, which is arranged between the first I-beam 2 and the second I-beam 3; the support assembly includes a plurality of top seats 4 fixed to the lower side of the first I-beam 2 and a plurality of longitudinal support rods 5 fixed to the upper side of the second I-beam 3. The specific fixing method is welding fixation, ensuring the connection effect. At the upper ends of the plurality of longitudinal support rods 5, a top support 6 is fixed respectively. Inside the plurality of top supports 6, a sleeve 7 is fixed respectively. Inside the plurality of sleeves 7, a threaded connecting rod 8 is rotationally connected through a thread. The upper ends of the plurality of threaded connecting rods 8 are respectively movably connected to the plurality of top seats 4. When carrying out the support, according to the diameter inside the pipe main body 1, the overall height of the support assembly is adjusted. Rotate the plurality of threaded connecting rods 8 respectively. The plurality of threaded connecting rods 8 and the plurality of sleeves 7 are meshed through threads, so that the plurality of threaded connecting rods 8 rotate and move along the inside of the plurality of sleeves 7, thereby completing the height adjustment, and the applicability is stronger.

[0023] As Figure 1 shown, in one embodiment, a connecting rod 9 is fixedly connected between the plurality of longitudinal support rods 5, ensuring the integrity of the support assembly and improving the overall support stability at the same time.

[0024] As Figure 1 shown, in one embodiment, one of the longitudinal support rods 5 is obliquely arranged.

[0025] As Figure 3 shown, in one embodiment, in order to ensure the fixing effect between the second I-beam 3 and the plurality of top seats 4, the plurality of top seats 4 are all U-shaped, so that their cross-sections correspond.

[0026] As Figure 1 shown, in one embodiment, the plurality of longitudinal support rods 5 are specifically formed by welding two channel steels respectively, which is economical and durable.

[0027] As Figure 1 shown, in one embodiment, both ends of the plurality of top supports 6 are arc-shaped, avoiding bumps on the staff when assembling the support.

[0028] The specific working method is as follows: When demolishing the pipeline main body 1, manual demolition is adopted, and temporary support measures are taken to demolish the pipeline main body 1 in a cyclic backward manner while backfilling the area within the scope of the pipeline main body 1, controlling the stability of the top pipe wall of the pipeline main body 1 and preventing the collapse of the overlying soil. Each section of the pipeline main body 1 has a length of 2m, each cycle is 670mm, and three cycles are one section of the pipeline main body 1. According to the different internal diameters of the pipeline main body 1, multiple top supports 6 are rotated. Through thread engagement, multiple threaded connecting rods 8 rotate and move inside multiple sleeves 7, and the overall height can be adjusted. A connecting rod 9 is fixedly connected between multiple longitudinal support rods 5, ensuring the integrity of the support assembly and the overall stability. After taking measures of the temporary support tooling for the pipeline main body 1, first demolish the inverted arch part, use autoclaved aerated blocks to masonry and backfill the lower inverted arch within a height range of 0.8m, then demolish the two side pipe walls within a height range of 1m, continue to masonry and backfill, and finally, after demolishing the remaining 0.6m height range, the backfilling is completed for one cycle.

[0029] The technical means disclosed in the solution of the present utility model are not limited to the technical means disclosed by the above technical means, but also include technical solutions composed of equivalent replacements of the above technical features. Matters not covered in the present utility model belong to the common general knowledge of those skilled in the art.

Claims

1. A rotatable support tool for breaking a large diameter concrete pipe, comprising a pipe body (1), an I-beam (2) is arranged at the upper end of the inner side of the pipe body (1), and an I-beam (3) is arranged at the lower end of the inner side of the pipe body (1), characterized in that: Also includes: A support assembly, the support assembly being disposed between the first I-beam (2) and the second I-beam (3); The support assembly comprises a plurality of top seats (4) fixed to the lower side of the I-beam 1 (2), and a plurality of longitudinal support rods (5) fixed to the upper side of the I-beam 2 (3); the upper ends of the plurality of longitudinal support rods (5) are all fixed with top supports (6); the inner sides of the plurality of top supports (6) are all fixed with sleeves (7); the inner sides of the plurality of sleeves (7) are all connected with threaded connecting rods (8) through threaded rotation; the upper ends of the plurality of threaded connecting rods (8) are respectively movably connected to the plurality of top seats (4).

2. The rotatable support tool for breaking a large diameter concrete pipe according to claim 1 is characterized in that: A connecting rod (9) is fixedly connected between the plurality of longitudinal support rods (5).

3. The rotatable support tool for breaking a large diameter concrete pipe according to claim 1 is characterized in that: One of the longitudinal support rods (5) is arranged obliquely.

4. The rotatable support tool for breaking a large diameter concrete pipe according to claim 1 is characterized by: The plurality of top seats (4) are all arranged in a U shape.

5. The rotatable support tool for breaking a large diameter concrete pipe according to claim 1 is characterized by: The plurality of longitudinal support rods (5) are respectively formed by welding two channel steels.

6. The rotatable support tool for breaking a large diameter concrete pipe according to claim 1, characterized in that: Both ends of the plurality of top supports (6) are arranged in an arc shape.

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