Pipeline construction groove supporting device and mounting method thereof

Abstract

The invention discloses a pipeline construction groove supporting device and an installation method thereof. The technical problems that an existing supporting device is poor in use adaptability, high in use cost, low in construction efficiency and the like are solved. The pipeline construction groove supporting device comprises two vertical supporting plates which are arranged in parallel, the two supporting plates are used for being tightly attached to the wall of a groove respectively, the two supporting plates are connected through a supporting part, and the length of the supporting part can be adjusted, so that the distance between the two supporting plates can be adjusted to adapt to different use environments. The method can adapt to different geological conditions and construction stage changes and can be rapidly arranged in place, effective supporting in the groove is achieved, the requirement for the width of pipeline installation can be met, meanwhile, the excavation face size of groove construction can be reduced, the earthwork excavation amount can be reduced, the construction period can be shortened, and construction safety and economical efficiency can be improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of pipeline construction, and in particular relates to a pipeline construction trench support device and an installation method thereof. Background Art

[0002] Underground pipelines, the lifeline of urban infrastructure, provide core functions such as water supply, drainage, gas, and electricity. Their construction quality directly impacts urban operational safety and livelihood security. With the acceleration of urbanization, the intensification of underground pipeline networks has placed higher demands on construction technology. Trench excavation, a critical step in pipeline laying, has a direct impact on the overall project by ensuring the stability and efficiency of its support system.

[0003] Existing support technologies primarily rely on rigid structures such as steel supports and concrete retaining walls. While these structures ensure trench wall stability, they exhibit significant drawbacks in practical application. First, to accommodate pipeline installation space, over-excavation typically requires 30%-50% of the required width, resulting in a surge in excavation volume. Second, rigid support structures encroach on the effective working surface, limiting the flexibility of construction machinery. Third, structural layout relies on on-site casting or heavy lifting of components, resulting in high costs and prolonged construction periods. According to statistics, traditional support methods result in earthwork costs accounting for 25%-40% of the total pipeline project cost, and construction periods are extended by over 20%.

[0004] For urban renewal projects involving the interweaving of existing pipelines and complex ownership of underground space, the current support technology lacks dynamic adjustment capabilities and is difficult to adapt to the protection needs of narrow working surfaces and adjacent structures. At the same time, it has defects such as low space utilization and long layout cycles, which not only increase construction complexity but also reduce economic benefits, and needs to be improved. Summary of the Invention

[0005] In order to solve all or part of the above problems, the purpose of the present invention is to provide a pipeline construction trench support device and an installation method thereof, which can adapt to different geological conditions and changes in construction stages, and can be quickly deployed in place, not only achieving effective support in the trench, but also meeting the width requirements of pipeline installation, while reducing the excavation surface size of trench construction, reducing the amount of earth excavation, shortening the construction period, and improving construction safety and economy.

[0006] In the first aspect, the present invention provides a pipeline construction trench support device, comprising two vertically and parallel support plates, and the two support plates are respectively used to cling to the trench wall, and the two support plates are connected by a support part, and the support part is configured to have an adjustable length, so that the spacing between the two support plates can be adjusted to adapt to different usage environments.

[0007] Optionally, the support portion includes a plurality of horizontally arranged support rods, a plurality of support tubes are respectively provided on the sides of the two support plates close to each other, and both ends of the plurality of support rods are respectively connected to the corresponding support tubes;

[0008] The support rod is configured such that its length can be adjusted telescopically or its two ends are detachably connected to the corresponding support tubes, and the distance between the two support plates can be adjusted by replacing the support rods with different lengths.

[0009] Optionally, both ends of each support rod are integrally formed with threaded portions, and the threaded portions are threadedly connected to the corresponding support tube.

[0010] Optionally, a stop pin is movably provided on each of the support tubes, and a stop hole for threaded connection of the corresponding stop pin is provided on each of the threaded portions.

[0011] Optionally, a reinforcement portion is provided between the two support plates, and the reinforcement portion is connected to the two support plates respectively to achieve reinforced support for the two support plates.

[0012] Optionally, the reinforcement portion includes a plurality of pairs of reinforcement rods, the middle portions of each pair of reinforcement rods are rotatably connected via a pivot, and both ends of each reinforcement rod are rotatably connected to a guide block;

[0013] A plurality of guide rails are vertically arranged on the side where the two support plates are close to each other, and each guide block is vertically slidably connected to the corresponding guide rail. Locking parts are arranged on the guide blocks and the corresponding guide rails, and the locking parts are used to fix the corresponding guide blocks.

[0014] Optionally, the locking member includes a locking screw movably provided on the guide block, and each guide rail is provided with a plurality of locking holes equidistantly spaced along the vertical direction, and the locking screw can be threadedly connected to any of the locking holes.

[0015] Optionally, each support plate is provided with a plurality of locking grooves at equal intervals in the vertical direction, the plurality of locking grooves on the support plate are aligned one by one with the plurality of locking holes on the corresponding guide rail, and the locking screws can be threadedly connected with the corresponding locking grooves after passing through the locking holes.

[0016] In a second aspect, the present invention provides a method for installing a pipeline construction trench support device, comprising the following steps:

[0017] S1, a trench is opened by excavating equipment, and two support plates are placed vertically on both sides of the trench after excavation;

[0018] S2, use excavation equipment to clean and trim the remaining soil in the trench, and then hoist the pipe into the trench for installation;

[0019] S3, assembling the pipeline construction trench support device and making the two support plates close to the trench wall to achieve trench support;

[0020] S4: Move the pipeline construction trench support device to the next construction section using excavation equipment and repeat S1-S2 until the trench is backfilled according to the design standards after acceptance.

[0021] Optionally, in S1, the excavating equipment uses a wide-mouth bucket head to dig a trench, and in S2, the excavating equipment uses a narrow-mouth bucket head to clean and trim the remaining soil in the trench.

[0022] As can be seen from the above technical solution, the pipeline construction trench support device and installation method provided by the present invention have the following advantages:

[0023] The pipeline construction trench support device can adapt to different geological conditions and changes in construction stages, and can be quickly deployed in place. It not only achieves effective support in the trench, but also meets the width requirements of pipeline installation. At the same time, it can reduce the excavation surface size of the trench construction, reduce the amount of earth excavation, shorten the construction period, and improve construction safety and economy.

[0024] Other features and advantages of the present invention will be set forth in the description that follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the technical solution of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the technical solution of the present invention and do not constitute a limitation to the technical solution of the present invention.

[0026] Figure 1 This is a schematic diagram of the overall structure of the pipeline construction trench support device in Example 1 of the present invention;

[0027] Figure 2 This is a schematic diagram of the structure of the support rods in Example 1 of the present invention, showing support rod groups of different lengths;

[0028] Figure 3 is a cross-sectional view of embodiment 1 of the present invention;

[0029] Figure 4 This is a schematic diagram of the pipeline construction trench support device in use in Example 2 of the present invention;

[0030] Figure 5 This is a schematic structural diagram of the wide-mouth bucket head and the narrow-mouth bucket head in Example 2 of the present invention.

[0031] Description of reference numerals:

[0032] 1. Support plate; 2. Support part; 21. Support rod; 22. Support tube; 23. Threaded part; 24. Anti-rotation pin; 25. Anti-rotation hole; 3. Reinforcement part; 31. Reinforcement rod; 32. Guide block; 33. Guide rail; 4. Locking piece; 41. Locking screw; 42. Locking hole; 43. Locking groove. DETAILED DESCRIPTION

[0033] To make the purpose, technical solutions and advantages of the present invention more clearly understood, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other in any manner.

[0034] Example 1

[0035] like Figure 1 、 Figure 2 、 Figure 3 The first embodiment of the present invention discloses a trench support device for pipeline construction, comprising two vertically and parallel support plates 1, each of which is configured to cling to the trench wall. Furthermore, the two support plates 1 are connected by a support portion 2, which is adjustable in length, allowing the spacing between the two support plates 1 to be adjusted to suit different usage environments.

[0036] In one embodiment, Figure 1 、 Figure 2 As shown, the support part 2 includes multiple horizontally arranged support rods 21, and multiple support tubes 22 are respectively arranged on the side where the two support plates 1 are close to each other. Each support rod 21 corresponds to two support tubes 22, and the two ends of the multiple support rods 21 are respectively connected to the corresponding support tubes 22.

[0037] In one embodiment, Figure 1 、 Figure 2 As shown, the support rod 21 is configured so that its length can be telescopically adjusted, and the distance between the two support plates 1 can be adjusted by changing the length of the support rod 21, or the support rod 21 is configured so that both ends are detachably connected to the corresponding support tubes 22, and the distance between the two support plates 1 can be adjusted by replacing support rods 21 of different lengths.

[0038] In this embodiment, only the support portion 2 is shown as consisting of two support rods 21 and four support tubes 22, and the two support rods 21 are located above the support plate 1. At the same time, the support rods 21 in this application are composed of multiple support rod groups of different lengths, that is, the distance between the two support plates 1 can be adjusted by replacing support rods 21 of different lengths.

[0039] In other embodiments, the support rod 21 may adopt a telescopic structure. For example, the support rod 21 is composed of a tube portion and a stem portion. The tube portion and the stem portion are threadedly connected or locked by fasteners to form a telescopic and adjustable structure.

[0040] In one embodiment, Figure 1 、 Figure 2 As shown, each support rod 21 is integrally formed with a threaded portion 23 at both ends, and the threaded portion 23 is threadedly connected to the corresponding support tube 22 to enable quick replacement of the support rod 21. In this embodiment, the threaded portions 23 at both ends of the support rod 21 have opposite thread directions. That is, when the support rod 21 is rotated, the two threaded portions 23 are tightened or loosened with the corresponding support tube 22, respectively, so that the support rod 21 can be quickly replaced.

[0041] In one embodiment, Figure 1 、 Figure 2 As shown, each support tube 22 is movably provided with a stop pin 24, and each threaded portion 23 is provided with a stop hole 25. When the threaded portion 23 is tightened with the corresponding support tube 22, the stop pin 24 can be threadedly connected with the corresponding stop hole 25, thereby improving the connection stability between the threaded portion 23 and the support tube 22.

[0042] In one embodiment, Figure 1 、 Figure 3 As shown, a reinforcement portion 3 is provided between the two support plates 1 , and the reinforcement portion 3 is connected to the two support plates 1 respectively to achieve reinforced support for the two support plates 1 , thereby improving the structural stability of the support device.

[0043] In one embodiment, Figure 1 、 Figure 3 As shown, the reinforcement portion 3 includes multiple pairs of reinforcement rods 31. The middle portion of each pair of reinforcement rods 31 is pivotally connected, forming an X-shaped structure. Guide blocks 32 are pivotally connected to each end of each reinforcement rod 31. Multiple guide rails 33 are vertically disposed on the adjacent sides of the two support plates 1. Each pair of reinforcement rods 31 corresponds to two guide rails 33, and each guide block 32 is vertically slidably connected to a corresponding guide rail 33. Locking members 4 are provided on the guide blocks 32 and their corresponding guide rails 33 to secure the corresponding guide blocks 32.

[0044] In one embodiment, Figure 1 、 Figure 3As shown, the locking member 4 includes a locking screw 41 that is movably inserted into the guide block 32. Each guide rail 33 is provided with a plurality of locking holes 42 at equal intervals along the vertical direction, and the locking screw 41 can be threadedly connected to any locking hole 42. Each support plate 1 is provided with a plurality of locking grooves 43 at equal intervals along the vertical direction. The plurality of locking grooves 43 on the support plate 1 are aligned one-to-one with the plurality of locking holes 42 on the corresponding guide rail 33, and the locking screw 41 can be threadedly connected to the corresponding locking groove 43 after passing through the locking hole 42.

[0045] When encountering soft soil layers, adjust the expansion angle of each pair of reinforcement rods 31 according to the spacing between the two support plates 1 until the guide rails 33 are tightly abutted against the corresponding support plates 1, and ensure that the locking screws 41, locking holes 42 and locking grooves 43 are aligned. Then rotate the locking screws 41 so that the locking screws 41 pass through the corresponding locking holes 42 and are threadedly connected to the corresponding locking grooves 43, thereby fixing the guide rails 33 and the reinforcement rods 31. At this time, the reinforcement rods 31 can provide reinforced support to the two support plates 1.

[0046] When encountering hard soil layers, loosen the locking screws 41 on each guide block 32 respectively, that is, after the locking screws 41 are disengaged from the corresponding locking grooves 43, remove the reinforcement rod 31 and the corresponding guide rail 33. Only relying on the supporting effect of the support part 2 can meet the support of the groove, so that the staff can choose whether to install the reinforcement part 3 according to the actual situation, thereby improving practicality.

[0047] Not only that, when the support device needs to be stored or transported, the reinforcing rod 31 can be fully expanded, that is, the distance between the two support plates 1 is minimized, and then the reinforcing rod 31 and the guide rail 33 are fixed to the corresponding support plate 1 through the locking screw 41. At this time, the two support plates 1 are fixed by the reinforcing rod 31 and other components to facilitate the staff's storage or transportation of the support device.

[0048] In this embodiment, the locking screw 41 can lock the reinforcing rod 31 and the guide rail 33. Only one set of locking screws 41 is needed to fix the reinforcing rod 31, the guide rail 33 and the support plate 1, which saves costs. In addition, each component forms a modular setting, and each component can be produced and maintained separately, ensuring the production accuracy of each component and reducing maintenance costs.

[0049] In this embodiment, the support plate 1, the support portion 2, the reinforcement portion 3 and other components are respectively made of steel to improve their own structural strength, thereby ensuring the supporting effect on the groove wall and increasing the service life of the supporting device.

[0050] Example 2

[0051] like Figure 4 、 Figure 5 The second embodiment of the present invention is shown, which discloses a method for installing a pipeline construction trench support device, including the following steps:

[0052] S1, a trench is opened by an excavating device, which uses a wide-mouthed bucket head, and the bucket head width is slightly larger than the trench width. After excavation, two support plates 1 are vertically placed on both sides of the trench;

[0053] S2, use excavation equipment to clean and trim the remaining soil in the trench, and the excavation equipment uses a narrow bucket head, and then lift the pipe into the trench for installation;

[0054] S3, connecting the two support plates 1 through the support portion 2, and selecting whether to install the reinforcement portion 3 according to the actual situation, so that the two support plates 1 are respectively close to the groove wall, thereby achieving support for the groove;

[0055] S4, control the movement of the support part 2 through the bucket head pulling device of the excavation equipment, and move the pipeline construction trench support device to the next construction section, and then repeat S1-S2 until the trench backfill is completed according to the design standards after acceptance.

[0056] From the above process, it can be seen that the pipeline construction trench support device and the installation method thereof in this embodiment have the following advantages:

[0057] (1) The various components of the support device are prefabricated from steel materials, and each component is connected by plug-in, threading or standard parts. It is very convenient to install and disassemble, and no on-site welding or pouring is required. It can be quickly and modularly assembled, making construction convenient and fast. At the same time, the support device can be installed within 30 minutes, shortening the construction period by more than 60% compared with traditional support processes. In addition, the rapid assembly feature of the support device can synchronously follow the progress of trench excavation, forming effective support at the initial stage of soil exposure, significantly reducing the risk of collapse, and reducing labor input by 20%-30%, achieving efficient and safe collaborative operations.

[0058] (2) The support device adopts a support part 2 and a reinforcement part 3 in combination. According to the changes in the hardness of the geology and the width of the trench, the support rod 21 can be quickly replaced and the reinforcement part 3 can be installed. That is, when the soil layer becomes soft, the reinforcement part 3 can be added to improve the rigidity. When the working surface needs to be widened, it is only necessary to control the opening angle of the reinforcement rod 31. The whole process does not require the disassembly and assembly of the entire support device, so that the support device can cope with different soil types and flexibly match the installation requirements of various pipe sizes, and its flexibility and adaptability are significantly improved.

[0059] (3) The support device can reduce the excavation surface and earthwork volume, improve economic benefits, and by optimizing the spatial layout of the support device, the trench excavation surface width can be reduced to 25%-60% of the traditional process, directly reducing the earthwork excavation volume by 10%-44%.

[0060] For example, a DN1400 heating pipeline in a three-meter-deep standard trench can reduce earthwork transport and backfill by approximately 2,673 cubic meters per kilometer of pipeline construction, saving over 187,000 yuan in transportation, disposal, and environmental disposal costs. Furthermore, the narrow working surface minimizes disturbance to the surrounding soil, reducing the cost of existing pipeline protection measures by 15%-20%, and increasing overall economic benefits by over 25%, providing a cost-effective solution for underground pipeline network construction in high-density urban areas.

[0061] (4) The support device not only has a steel support plate 1 for rigid compression resistance, but also has a support portion 2 and a reinforcement portion 3 for stable support, thereby increasing the compression resistance of the support device and improving the support effect on the groove.

[0062] To sum up, the present invention has the advantages of small excavation volume, short construction period, high safety, good economy, convenient disassembly and assembly, flexible use, and strong adaptability to complex geological conditions and narrow space environments. It effectively controls foundation pit deformation by optimizing the structural system, significantly reduces construction costs while ensuring project safety, and is particularly suitable for foundation pit engineering scenarios where the surrounding environment is sensitive or the construction working surface is limited.

[0063] The actual use effect of the present invention is shown in the table below. According to the data in the table below, it can be seen that the support device of the present invention has improved various data indicators compared with the traditional support structure.

[0064]

[0065] It should be noted that, unless otherwise specified, the technical or scientific terms used in the present invention should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0066] In addition, the terms "first," "second," etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. In the description of the present invention, "plurality" means more than two, unless otherwise specifically defined.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A pipeline construction trench support device, characterized in that: The invention comprises two vertically and parallelly arranged support plates (1), and the two support plates (1) are respectively used to cling to the groove wall. The two support plates (1) are connected by a support portion (2), and the support portion (2) is arranged to have an adjustable length, so that the distance between the two support plates (1) can be adjusted to adapt to different use environments.

2. The pipeline construction trench support device according to claim 1, characterized in that: The support portion (2) comprises a plurality of horizontally arranged support rods (21), and a plurality of support tubes (22) are respectively provided on the sides of the two support plates (1) close to each other, and both ends of the plurality of support rods (21) are respectively connected to the corresponding support tubes (22); The support rod (21) is configured such that its length can be telescopically adjusted or both ends are detachably connected to the corresponding support tubes (22), and the distance between the two support plates (1) can be adjusted by replacing the support rods (21) of different lengths.

3. The pipeline construction trench support device according to claim 2, characterized in that: Both ends of each support rod (21) are integrally formed with threaded portions (23), and the threaded portions (23) are threadedly connected to the corresponding support tube (22).

4. The pipeline construction trench support device according to claim 3, characterized in that: A stop pin (24) is movably provided on each support tube (22), and a stop hole (25) for threaded connection of the corresponding stop pin (24) is provided on each threaded portion (23).

5. The pipeline construction trench support device according to claim 1, characterized in that: A reinforcement portion (3) is provided between the two support plates (1), and the reinforcement portion (3) is respectively connected to the two support plates (1) to achieve reinforced support for the two support plates (1).

6. The pipeline construction trench support device according to claim 5, characterized in that: The reinforcement portion (3) comprises a plurality of pairs of reinforcement rods (31), the middle portions of each pair of reinforcement rods (31) are rotatably connected via a pivot, and both ends of each reinforcement rod (31) are rotatably connected to a guide block (32); A plurality of guide rails (33) are vertically arranged on the side where the two support plates (1) are close to each other, and each guide block (32) is vertically slidably connected to the corresponding guide rail (33). A locking member (4) is provided on the guide block (32) and the corresponding guide rail (33), and the locking member (4) is used to fix the corresponding guide block (32).

7. The pipeline construction trench support device according to claim 6, characterized in that: The locking member (4) comprises a locking screw (41) movably provided on the guide block (32); a plurality of locking holes (42) are provided on each guide rail (33) at equal intervals in the vertical direction, and the locking screw (41) can be threadedly connected to any of the locking holes (42).

8. The pipeline construction trench support device according to claim 7, characterized in that: A plurality of locking grooves (43) are provided on each support plate (1) at equal intervals along the vertical direction. The plurality of locking grooves (43) on the support plate (1) are aligned one by one with the plurality of locking holes (42) on the corresponding guide rail (33), and the locking screws (41) can be threadedly connected with the corresponding locking grooves (43) after passing through the locking holes (42).

9. A method for installing a pipeline construction trench support device according to any one of claims 1 to 8, characterized in that: The steps include: S1, a trench is opened by excavating equipment, and after excavation, two support plates (1) are vertically placed on both sides of the trench; S2, use excavation equipment to clean and trim the remaining soil in the trench, and then hoist the pipe into the trench for installation; S3, assembling the pipeline construction trench support device and making the two support plates (1) close to the trench wall respectively to achieve trench support; S4: Move the pipeline construction trench support device to the next construction section using excavation equipment and repeat S1-S2 until the trench is backfilled according to the design standards after acceptance.

10. The installation method according to claim 9, characterized in that: In S1, the excavation equipment uses a wide-mouth bucket head to dig a trench, and in S2, the excavation equipment uses a narrow-mouth bucket head to clean and trim the remaining soil in the trench.

Images