Support for erecting water supply and drainage pipelines

Abstract

The utility model discloses a water supply and drainage pipeline erecting support which comprises an inverted arch precast block (2) arranged at the bottom of a tunnel (1), a stand column (3) is vertically arranged on one side of the inverted arch precast block (2), a telescopic beam (4) is transversely arranged on the top of the stand column (3), and one end of the telescopic beam (4) is connected with the top of the stand column (3). And the other end of the telescopic cross beam (4) is connected with a cross beam fixing device arranged on the inner wall of the tunnel (1). The device has the advantages of being simple in structure, convenient to operate and low in cost, not only can meet the erecting requirements of the water supply and drainage pipelines under various working conditions, but also can realize small-amplitude adjustment and quickly finish the erecting work of the water supply and drainage pipelines; the support is assembled in different modes, can be used under different working conditions, is high in universality and saves materials.

Description

Technical Field

[0001] The utility model relates to a pipeline support, in particular to a support for laying water supply and drainage pipelines. Background Art

[0002] Due to its safety, speed, high efficiency, environmental protection and other characteristics, TBM tunnel boring machines are used more and more in tunnel construction. In the construction of tunnels by the TBM method, since the excavation section of the TBM is circular, the available space for construction operations at the bottom of the tunnel is less. By laying inverted arch precast blocks at the bottom of the tunnel, a platform with a certain width is constructed for laying a rail transportation system to transport construction materials. For the construction of water-rich tunnels, water supply and drainage pipelines are laid on the tunnel walls on both sides of the inverted arch blocks to ensure that the waste water in the tunnel can be discharged in time.

[0003] Nowadays, the application of synchronous construction technology is becoming more and more common. After some tunnels are excavated, there are still secondary lining, inverted arch, drainage ditch, cable trench and road surface construction, etc. During the subsequent construction processes, the water supply and drainage pipelines need to be relocated many times, and each relocation will cause the drainage to be interrupted, affecting the progress of on-site construction. Therefore, by optimizing the layout of the water supply and drainage pipelines, the water supply and drainage pipes are arranged in an elevated form to reduce the interference and impact on subsequent construction. During the operation of other processes, the pipelines do not need to be relocated, and the synchronous operation of other processes is achieved by converting the load-bearing form of the water supply and drainage pipes through sections; during the conversion, the original water supply and drainage pipe supports need to be removed, and after the subsequent operation is completed, the water supply and drainage pipes can be restored to the supports.

[0004] The invention patent application named "Layout and Traversal of Large-diameter Drainage Pipelines in Water-rich Tunnels" is disclosed in CN117685053A. Although this patent application discloses a support frame for supporting pipelines, this support frame is welded into an integral form. When it is removed and reinstalled, the problem of mismatch between the spatial positions of the support and the pipeline often occurs, and the original support needs to be cut or welded on-site for rework; moreover, in the small arc-shaped working space (the arc-shaped area on both sides of the inverted arch block at the bottom of the circular tunnel), the handling, removal and installation of the integral support frame have high safety risks and low operation efficiency, affecting the progress of other process operations. At the same time, the applicability of the support is poor, resulting in a large waste of steel. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a support for laying water supply and drainage pipelines that can meet the erection requirements of water supply and drainage pipelines under various working conditions, and can achieve small adjustments and quickly complete the erection work of water supply and drainage pipelines.

[0006] The object of the utility model is achieved by such a technical solution. A support for laying water supply and drainage pipelines includes an inverted arch precast block arranged at the bottom of a tunnel. A vertical column is arranged vertically on one side of the inverted arch precast block. A telescopic cross beam with one end connected to the top of the column is arranged horizontally at the top of the column. The other end of the telescopic cross beam is connected to a cross beam fixing device arranged on the inner wall of the tunnel.

[0007] For the convenience of connection, a top hinge hole group and a middle hinge hole group are respectively arranged at the top end and the middle part of the column; a end hinge hole is arranged at one end of the telescopic cross beam; the end hinge hole is connected to the top hinge hole group or the middle hinge hole group through a cylindrical pin.

[0008] Among them, the telescopic cross beam includes a cross beam fixing section and a cross beam movable section. One end of the cross beam fixing section extends into the cross beam movable section, and a end clamping plate connected to the cross beam fixing device is arranged at the other end; the end hinge hole is arranged at one end of the cross beam movable section, and a movable section hinge hole group is arranged at the other end of the cross beam movable section; fixing section hinge hole groups and external side hinge hole groups are respectively arranged at both ends of the cross beam fixing section; the movable section hinge hole group is connected to the fixing section hinge hole group or the external side hinge hole group through a cylindrical pin.

[0009] For the convenience of fixing the water supply and drainage pipelines, a limiting angle steel is arranged on the upper end face of the cross beam movable section.

[0010] In the present invention, the cross beam fixing device includes connecting plates A and B which are arranged on the inner wall of the tunnel and are arranged oppositely. An movable section square steel and a fixing section square steel are arranged between the connecting plate A and the connecting plate B. One end of the fixing section square steel is inserted into the movable section square steel, and the other end is connected to the connecting plate B. The other end of the movable section square steel is connected to the connecting plate A through a tubular turnbuckle, and a clamping groove matched with the end clamping plate is arranged at the top of this end.

[0011] Due to the adoption of the above technical solution, the utility model has the advantages of simple structure, convenient operation and low cost. Using it can not only meet the requirements for erecting water supply and drainage pipelines under various working conditions, but also can achieve small adjustments and quickly complete the erection work of water supply and drainage pipelines; the support can be assembled in different ways to realize the use under different working conditions, has strong versatility and saves materials. Description of the Drawings

[0012] The drawings of the utility model are described as follows:

[0013] Figure 1 is a schematic structural diagram of the utility model;

[0014] Figure 2 is Figure 1 a partial enlarged view of;

[0015] Figure 3 This is an enlarged view of the crossbeam fixing device of the present utility model;

[0016] Figure 4 This is a schematic diagram of the structure after lining. Specific embodiments

[0017] The following further describes in detail the specific embodiments of the present utility model with reference to the accompanying drawings. However, the present utility model is not limited to these embodiments. Any improvement or substitution based on the basic spirit of this embodiment still falls within the scope protected by the claims of the present utility model.

[0018] Embodiment 1: As shown in Figure 1 、 2 、3 and 4, a support for laying water supply and drainage pipes includes an inverted arch precast block 2 arranged at the bottom of the tunnel 1. A vertical column 3 is vertically arranged on one side of the inverted arch precast block 2. A telescopic crossbeam 4 with one end connected to the top of the column 3 is horizontally arranged on the top of the column 3. The other end of the telescopic crossbeam 4 is connected to a crossbeam fixing device arranged on the inner wall of the tunnel 1.

[0019] For the convenience of connection and assembly, a top hinge hole group 5 and a middle hinge hole group 6 are respectively arranged at the top end and the middle part of the column 3; a head hinge hole 7 is arranged at one end of the telescopic crossbeam 4; the head hinge hole 7 is connected to the top hinge hole group 5 or the middle hinge hole group 6 through a cylindrical pin. Among them, the top hinge hole group 5 is used for connecting the crossbeam before lining, and the middle hinge hole group 6 is used for connecting the crossbeam after lining. The design of multiple hinge holes facilitates the flexible adjustment of the position of the telescopic crossbeam 4 according to the on-site working conditions.

[0020] Further description, the telescopic crossbeam 4 includes a crossbeam fixed section 8 and a crossbeam movable section 9. One end of the crossbeam fixed section 8 extends into the crossbeam movable section 9, and a head clamping plate 19 connected to the crossbeam fixing device is arranged at the other end; the head hinge hole 7 is arranged at one end of the crossbeam movable section 9, and a movable section hinge hole group 10 is arranged at the other end of the crossbeam movable section 9; fixed section hinge hole groups 11 and external side hinge hole groups 12 are respectively arranged at both ends of the crossbeam fixed section 8; the movable section hinge hole group 10 is connected to the fixed section hinge hole group 11 or the external side hinge hole group 12 through a cylindrical pin.

[0021] In order to facilitate the fixation of the water supply and drainage pipes, a limit angle steel 13 is arranged on the upper end surface of the crossbeam movable section 9.

[0022] Furthermore, the crossbeam fixing device includes connecting plates A14 and B15 which are arranged on the inner wall of the tunnel and are opposite to each other. An adjustable square steel 16 and a fixed square steel 17 are arranged between the connecting plates A14 and B15. One end of the fixed square steel 17 is inserted into the adjustable square steel 16, and the other end is connected to the connecting plate B15. The other end of the adjustable square steel 16 is connected to the connecting plate A14 through a tubular turnbuckle 18, and a clamping groove for cooperating with the end clamping plate 19 is arranged at the top of this end. By rotating the tubular turnbuckle 18, the up-and-down movement of the adjustable square steel 16 can be realized to adjust the fully loaded weight of the supply and drainage pipes 20 by the telescopic crossbeam 4.

[0023] The usage method of this device is as follows: Usage before lining: Drive two upper and lower anchor bolts on the hole wall at the corresponding height for erecting the supply and drainage pipes 20, fix the crossbeam 4 fixing device on the hole wall, drive an anchor bolt 23 at the bottom of the corresponding support column, fix the column 3 at the bottom of the tunnel, insert the end clamping plate 19 of the crossbeam fixed section 8 into the clamping groove of the crossbeam fixing device, and determine the connection between the end of the crossbeam adjustable section 9 and the top hinge hole group 5 of the column 3 and the external side hinge hole group 12 on the crossbeam adjustable section 9 and the crossbeam fixed section 8 by adjusting the height of the crossbeam 4. By rotating the turnbuckle 18 of the crossbeam 4 fixing device, make the crossbeam 4 fully bear the weight of the supply and drainage pipes to ensure the stable operation of the supply and drainage pipelines.

[0024] Usage after lining 21: Drive two upper and lower anchor bolts on the hole wall at the corresponding height for erecting the supply and drainage pipes 20, fix the crossbeam 4 fixing device on the hole wall, drive an anchor bolt 23 at the bottom of the corresponding support column 3 on the lining 21, fix the column 3 on the lining, insert the end clamping plate 19 of the crossbeam fixed section 8 into the clamping groove of the crossbeam fixing device, and determine the connection between the end of the crossbeam adjustable section 9 and the middle hinge hole group 6 of the column 3 and the external side hinge hole group 12 on the crossbeam adjustable section 9 and the crossbeam fixed section 8 by adjusting the height of the crossbeam 4. By rotating the turnbuckle 18 of the crossbeam 4 fixing device, make the crossbeam 4 fully bear the weight of the supply and drainage pipes to ensure the stable operation of the supply and drainage pipelines.

[0025] This bracket adopts a unit modular design, which is convenient for on-site handling, assembly and disassembly, and has a low safety risk during operation in a limited space. Through multiple hinge hole positions and telescopic adjustable design, the adaptability adjustment of the on-site bracket can be quickly completed, improving the operation efficiency.

[0026] Taking the TBM construction of a railway tunnel as an example for illustration.

[0027] There are gutter cable troughs 22 arranged on both sides of the railway tunnel. After the TBM tunneling passes through, the construction of the secondary lining 21, the gutter cable troughs 22 and the track system needs to be carried out. If the supply and drainage pipes 20 are fixed to the tunnel wall by traditional methods, the supply and drainage pipes 20 need to be relocated multiple times during the subsequent construction of the secondary lining 21, the gutter cable troughs 22 and the track system. Therefore, the supply and drainage pipes 20 are erected in the form of brackets at positions that do not affect the construction of the secondary lining 21, the gutter cable troughs 22 and the track system. In this embodiment, the supply and drainage pipes 20 are assumed to be above the gutter cable troughs 22, and the columns 3 and the cross beams 4 are respectively arranged on the sides and above the gutter cable troughs 22.

Claims

1. A support for erecting water supply and drainage pipes, comprising a prefabricated invert block (2) arranged at the bottom of a tunnel (1), characterized in that: A column (3) is vertically arranged on one side of the inverted arch prefabricated block (2); a retractable cross beam (4) is transversely arranged on the top of the column (3) and has one end connected to the top of the column (3); the other end of the retractable cross beam (4) is connected to a cross beam fixing device arranged on the inner wall of the tunnel (1); The crossbeam fixing device comprises a connecting plate A (14) and a connecting plate B (15) which are arranged on the inner wall of the tunnel and are arranged opposite to each other. A movable square steel (16) and a fixed square steel (17) are arranged between the connecting plate A (14) and the connecting plate B (15). One end of the fixed square steel (17) is inserted into the movable square steel (16) and the other end is connected to the connecting plate B (15). The other end of the movable square steel (16) is connected to the connecting plate A (14) by a tubular basket bolt (18), and a clamping groove cooperating with an end clamping plate (19) is arranged at the top of the end.

2. The water supply and drainage pipe installation bracket according to claim 1 is characterized in that: The top and middle parts of the upright column (3) are respectively provided with a top hinge hole group (5) and a middle hinge hole group (6); an end hinge hole (7) is provided at one end of the telescopic crossbeam (4); the end hinge hole (7) is connected to the top hinge hole group (5) or the middle hinge hole group (6) via a cylindrical pin.

3. The water supply and drainage pipe erection bracket according to claim 2, characterized in that: The telescopic crossbeam (4) comprises a crossbeam fixed section (8) and a crossbeam movable section (9); one end of the crossbeam fixed section (8) extends into the crossbeam movable section (9), and the other end is provided with an end clamp (19) connected to the crossbeam fixing device; the end hinge hole (7) is provided at one end of the crossbeam movable section (9), and the other end of the crossbeam movable section (9) is provided with a movable section hinge hole group (10); a fixed section hinge hole group (11) and an external side hinge hole group (12) are respectively provided at both ends of the crossbeam fixed section (8); the movable section hinge hole group (10) is connected to the fixed section hinge hole group (11) or the external side hinge hole group (12) through a cylindrical pin.

4. The water supply and drainage pipe erection bracket according to claim 3 is characterized in that: A limited angle steel (13) is provided on the upper end surface of the crossbeam movable joint (9).

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