CN216974867U

CN216974867U - Diversion tunnel construction is with full circle template lining cutting device

Info

Publication number: CN216974867U
Application number: CN202220326326.3U
Authority: CN
Inventors: 邵树华; 王金凤; 孔德彪; 徐珂
Original assignee: Sinohydro Bureau 8 Co Ltd
Current assignee: Sinohydro Bureau 8 Co Ltd
Priority date: 2022-02-17
Filing date: 2022-02-17
Publication date: 2022-07-15
Anticipated expiration: 2032-02-17

Abstract

The utility model discloses a full-circle template lining device for diversion tunnel construction, which comprises a needle beam, a beam frame, a full-circle template and a telescopic mechanism, wherein the bottoms of the two ends of the beam frame are respectively provided with a support base capable of being adjusted in a telescopic manner, the beam frame is sleeved on the needle beam in a sliding manner, the full-circle template is arranged around the beam frame in a telescopic manner through the telescopic mechanism, the top surface and the bottom surface of the needle beam are respectively provided with a sliding rail, and the positions of the beam frame, corresponding to the sliding rails, are respectively provided with a roller. This diversion tunnel construction is with full circular template lining device convenient operation, be convenient for found the mould and take one's place and can improve the efficiency of construction.

Description

Diversion tunnel construction is with full circle template lining cutting device

Technical Field

The utility model relates to the technical field of tunnel lining, in particular to a full-circle template lining device for diversion tunnel construction.

Background

At present, the pouring construction of diversion tunnels is generally carried out by steel template lining trolleys which are of a needle beam type and a penetrating type and are provided with operating systems such as hydraulic self-propelled systems. The track of the passing frame of the passing type template lining trolley is fixed on the bottom die of the trolley, and meanwhile, the overlapping of the template and the upper group of poured concrete has certain difficulty. The existing walking type formwork lining trolley has the following defects: 1) the mold erecting and positioning time is long, and the lining speed is low; 2) the self rigidity is less, the support is fixed complicatedly, influences the construction and the quality control of reinforcing steel bars and water proofing greatly, and the construction quality is difficult to guarantee.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of overcoming the defects of the prior art and provides a full-circle template lining device for diversion tunnel construction, which is convenient to operate, convenient to erect a mold and place and capable of improving the construction efficiency.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a diversion tunnel construction is with full circle template lining cutting device, includes needle beam, roof beam frame, full circle template and telescopic machanism, the both ends bottom of roof beam frame all is equipped with the support base of scalable regulation, the roof beam frame slip cap is located on the needle beam, full circle template can set up around the roof beam frame through telescopic machanism with stretching out, the top surface and the bottom surface of needle beam all are equipped with the slide rail, all be equipped with the gyro wheel on the position that roof beam frame and each slide rail correspond.

As a further improvement of the above technical solution:

the full-circle formwork comprises a first side arc formwork, a bottom side arc formwork, a second side arc formwork and a top side arc formwork which are hinged in sequence, the bottom side arc formwork is fixed to the bottom of the beam frame, the first side arc formwork and the second side arc formwork are located on two sides of the beam frame respectively, the top side arc formwork is located above the beam frame, and the first side arc formwork, the second side arc formwork and the top side arc formwork are arranged on the beam frame in a retractable mode through a telescopic mechanism.

The telescopic mechanism comprises a plurality of telescopic oil cylinders, and telescopic oil cylinders are hinged between the arc-shaped templates and the beam frame.

The telescopic mechanism further comprises a plurality of jacks, and the jacks are hinged between the arc-shaped templates and the beam frame.

The end face, far away from the bottom side arc-shaped template, of one end of the first side arc-shaped template is provided with a limiting inclined face, and the end face, far away from the second side arc-shaped template, of the top side arc-shaped template is provided with a matching inclined face and used for being in abutting fit with the limiting inclined face.

And each arc-shaped template is provided with a working window and a grouting opening.

The top of the two ends of the beam frame is provided with a telescopic adjustable anti-floating top support.

And supporting legs are arranged at two ends of the needle beam.

And the needle beam is provided with a driving mechanism for driving the beam frame to move.

The driving mechanism comprises a winch and a pull rope, traction wheels are arranged at two ends of the beam frame, fixed pulleys are arranged at two ends of the needle beam, one end of the needle beam is arranged on the winch, one end of the pull rope is arranged on the winch, the other end of the pull rope is fixed at the other end of one end of the needle beam, and the middle of the pull rope is wound on the fixed pulleys and the traction wheels.

Compared with the prior art, the utility model has the advantages that:

when the full-circle template lining device for diversion tunnel construction is used, the needle beam is arranged along the longitudinal direction of the diversion tunnel, and two ends of the needle beam are supported on the ground; then, each supporting base is extended to be firmly supported on the ground; secondly, the full-circle template is unfolded and spliced by the telescopic mechanism to form a circle, so that a vertical mold (the openings at the two ends of the full-circle template are blocked) is realized, and at the moment, the center of the full-circle template and the center of the diversion tunnel are coincided by the aid of a measuring instrument and the telescopic mechanism and the support base; then, pouring concrete between the full-circle template and the diversion tunnel; and after the concrete is solidified to reach the standard, the full-circle template is contracted towards the center through the telescopic mechanism so as to realize demoulding. This diversion tunnel construction is with full circle template lining cutting device convenient operation, be convenient for found the mould and take one's place and can improve the efficiency of construction.

Drawings

Fig. 1 is a schematic front view structure diagram of a full-circle template lining device for diversion tunnel construction.

FIG. 2 is a schematic side view of the full-circle template lining device for diversion tunnel construction of the present invention.

Fig. 3 is an enlarged view at a in fig. 2.

FIG. 4 is a schematic view of a partial structure of the full-circle template lining device for diversion tunnel construction of the utility model.

FIG. 5 is a drawing of the demolding state of the full-circle template lining device for diversion tunnel construction of the utility model.

Fig. 6 is an expanded view of the full-circle formwork lining device for diversion tunnel construction of the utility model.

The reference numerals in the figures denote:

1. a needle beam; 11. a support leg; 12. a fixed pulley; 2. a beam frame; 21. a traction wheel; 3. a full-circle template; 31. a first side arc-shaped template; 311. a limiting inclined plane; 32. a bottom side arc-shaped template; 33. a second side arc-shaped template; 34. a top side arc template; 341. a mating bevel; 35. a working window; 36. a grouting port; 4. a telescoping mechanism; 41. a telescopic oil cylinder; 42. a jack; 5. a support base; 6. a slide rail; 7. a roller; 8. anti-floating jacking; 9. a drive mechanism; 91. a hoist; 92. and pulling a rope.

Detailed Description

The utility model will be described in further detail below with reference to the drawings and specific examples.

Fig. 1 to 6 show an embodiment of the full-circle template lining device for diversion tunnel construction, which comprises a needle beam 1, a beam frame 2, a full-circle template 3 and a telescopic mechanism 4, wherein the bottoms of two ends of the beam frame 2 are respectively provided with a support base 5 capable of being adjusted in a telescopic manner, the beam frame 2 is slidably sleeved on the needle beam 1, the full-circle template 3 is arranged around the beam frame 2 in a telescopic manner through the telescopic mechanism 4, the top surface and the bottom surface of the needle beam 1 are respectively provided with a sliding rail 6, and the beam frame 2 is provided with a roller 7 at a position corresponding to each sliding rail 6.

When the full-circle template lining device is used, the needle beam 1 is arranged along the longitudinal direction of the diversion tunnel, two ends of the needle beam 1 are supported on the ground, firstly, the full-circle template 3 is in a contraction state, and the beam frame 2 drives the full-circle template 3 to move to a lining position along the needle beam 1, so that the full-circle template 3 is in place; then, each support base 5 is extended to be firmly supported on the ground; secondly, the telescopic mechanism 4 enables the full-circle template 3 to be unfolded and spliced to form a circle, so that a vertical mold (the openings at the two ends of the full-circle template 3 are blocked) is realized, and at the moment, the center of the full-circle template 3 and the center of the diversion tunnel are coincided through the telescopic mechanism 4 and the supporting base 5 by means of a measuring instrument; then, concrete is poured between the full-circle template 3 and the diversion tunnel; after the concrete is solidified to reach the standard, the full-circle template 3 is contracted towards the center through the telescopic mechanism 4 so as to realize demoulding. This diversion tunnel construction is with full circular template lining device convenient operation, be convenient for found the mould and take one's place and can improve the efficiency of construction.

In this embodiment, as shown in fig. 2 and 5, the full circle formwork 3 includes a first side arc formwork 31, a bottom side arc formwork 32, a second side arc formwork 33, and a top side arc formwork 34, which are hinged in sequence, the bottom side arc formwork 32 is fixed at the bottom of the girder frame 2, the first side arc formwork 31 and the second side arc formwork 33 are respectively located at two sides of the girder frame 2, the top side arc formwork 34 is located above the girder frame 2, and the first side arc formwork 31, the second side arc formwork 33, and the top side arc formwork 34 are retractably disposed on the girder frame 2 through the telescoping mechanism 4. The first side arc-shaped formwork 31 and the second side arc-shaped formwork 33 can be rotatably adjusted relative to the bottom side arc-shaped formwork 32, and the top side arc-shaped formwork 34 can be rotatably adjusted relative to the second side arc-shaped formwork 33, so that the folding and unfolding movement of the full-circle formwork 3 is realized. The structural design is ingenious, and the operation is convenient.

In this embodiment, the telescopic mechanism 4 includes a plurality of telescopic cylinders 41, and the telescopic cylinders 41 are hinged between each arc-shaped template and the beam frame 2. A plurality of telescopic oil cylinders 41 are arranged between the first side arc-shaped template 31 and the beam frame 2 and between the second side arc-shaped template 33 and the beam frame 2, and the arc-shaped templates are adjusted in a rotating mode under the combined action of the telescopic oil cylinders 41. When erecting the mould, first side arc template 31 and second side arc template 33 support through a plurality of flexible hydro-cylinders 41, improve structural stability and support strength to improve construction quality. The top side arch form 34 may be disposed to be shorter than the first and second side

arch forms

31 and 33.

In this embodiment, the telescoping mechanism 4 further includes a plurality of jacks 42, and the jacks 42 are hinged between each arc-shaped formwork and the beam frame 2. When the formwork is erected, the jack 42 is used for reinforcing the support, so that the strength and rigidity of the whole structure can be improved, and the construction quality is improved. Specifically, the telescopic oil cylinder 41 is detachably hinged with the arc-shaped template and the beam frame 2, and the jack 42 is detachably hinged with the arc-shaped template and the beam frame 2, so that the telescopic oil cylinder is convenient to disassemble and assemble.

In this embodiment, an end surface of the first side arc-shaped formwork 31 far away from the bottom side arc-shaped formwork 32 is set as a limiting inclined surface 311, and an end surface of the top side arc-shaped formwork 34 far away from the second side arc-shaped formwork 33 is set as a matching inclined surface 341 for abutting against and matching with the limiting inclined surface 311. In the process of unfolding the full-circle template 3, the first side arc-shaped template 31 and the second side arc-shaped template 33 are firstly unfolded outwards, the top side arc-shaped template 34 is then unfolded outwards, and when the matching inclined plane 341 and the limiting inclined plane 311 are matched, the full-circle template 3 is unfolded to be completed.

In this embodiment, as shown in fig. 6, each arc-shaped formwork is provided with a working window 35 and a grouting opening 36. The pouring operation is convenient. The outer surface of the curved forms, the work windows 35 and the grout ports 36 must be pre-coated with a release agent prior to casting to reduce surface adhesion of the forms during demolding. And pouring concrete into the bottom side arc-shaped template 32 through the working window 35 of the bottom side arc-shaped template 32. In order to smooth the surface of concrete and reduce the defects of bubbles during pouring, pouring and blanking are carried out from one side within 120 degrees of the arc-shaped template 32 at the bottom side in the pouring process, so that the defects of buoyancy and concrete, which are formed by exhaust to the middle in a centralized manner due to simultaneous blanking at two sides, are avoided, and an exhaust working opening is reserved at a proper position of the sub-sealing side, so that the concrete is exhausted, and meanwhile, the concrete can be vibrated by means of an inserted vibrator. The first side arc-shaped formwork 31 and the second side arc-shaped formwork 33 are poured with concrete through the respective working windows 35 for pouring. In order to ensure that the trolley is stressed uniformly, the concrete of the first side arc-shaped formwork 31 and the second side arc-shaped formwork 33 should be poured at intervals, the height difference of the concrete surface should not be more than 0.5m, and the concrete is vibrated by using the plug-in vibrator every time one layer of concrete is poured. The top arc formwork 34 is concreted by feeding the top arc formwork 34 through a grouting port 36. When the top side arc-shaped formwork 34 is poured, attention should be paid to observe concrete pouring conditions, and when the concrete pouring conditions are found to be full, concrete pumping should be stopped immediately so as to prevent deformation of the top side arc-shaped formwork 34 caused by excessive local pressure of the top side arc-shaped formwork 34.

In this embodiment, the top of the two ends of the beam frame 2 are both provided with the anti-floating top support 8 which can be adjusted in a telescopic manner. After the formwork erection is completed, the support is formed at the top through the anti-floating top support 8, so that the support strength is improved.

In this embodiment, the two ends of the needle beam 1 are provided with the supporting legs 11. The needle beam 1 is supported on the ground by means of legs 11.

In this embodiment, the needle beam 1 is provided with a driving mechanism 9 for driving the beam frame 2 to move. Specifically, the driving mechanism 9 includes a hoist 91 and a pull rope 92, the two ends of the beam frame 2 are both provided with the traction wheels 21, the two ends of the needle beam 1 are both provided with the fixed pulley 12, the hoist 91 is arranged at one end of the needle beam 1, one end of the pull rope 92 is arranged on the hoist 91, the other end is fixed at the other end of one end of the needle beam 1, and the middle part is wound on the fixed pulley 12 and the traction wheels 21. The hoist 91 rotates forward to drive the beam frame 2 to move to one side through the pull rope 92, and the hoist 91 rotates backward to drive the beam frame 2 to move to the other side through the pull rope 92.

The bottom arcuate form 32 disengagement may be achieved by the telescoping action of the support base 5.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the utility model, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.

Claims

1. The utility model provides a diversion tunnel construction is with full circle template lining device which characterized in that: including needle roof beam (1), roof beam frame (2), full circle template (3) and telescopic machanism (4), the both ends bottom of roof beam frame (2) all is equipped with support base (5) of scalable regulation, roof beam frame (2) slip cap is located on needle roof beam (1), full circle template (3) can set up around roof beam frame (2) through telescopic machanism (4) with expanding, the top surface and the bottom surface of needle roof beam (1) all are equipped with slide rail (6), all be equipped with gyro wheel (7) on the position that roof beam frame (2) and each slide rail (6) correspond.

2. The diversion tunnel construction is with full circle template lining device of claim 1, its characterized in that: full circle template (3) are including articulated first side arc template (31), bottom side arc template (32), second side arc template (33) and top side arc template (34) in proper order, bottom side arc template (32) are fixed in the bottom of roof beam frame (2), first side arc template (31) and second side arc template (33) are located the both sides of roof beam frame (2) respectively, top side arc template (34) are located the top of roof beam frame (2), first side arc template (31), second side arc template (33) and top side arc template (34) set up on roof beam frame (2) through telescopic machanism (4) can stretch out.

3. The diversion tunnel construction of claim 2 is with full circle template lining device, its characterized in that: the telescopic mechanism (4) comprises a plurality of telescopic oil cylinders (41), and the telescopic oil cylinders (41) are hinged between the arc-shaped templates and the beam frame (2).

4. The diversion tunnel construction is with full circle template lining device of claim 3, its characterized in that: the telescopic mechanism (4) further comprises a plurality of jacks (42), and the jacks (42) are hinged between the arc-shaped templates and the beam frame (2).

5. The diversion tunnel construction of claim 2 is with full circle template lining device, its characterized in that: the end face, far away from the bottom side arc-shaped formwork (32), of one end of the first side arc-shaped formwork (31) is set to be a limiting inclined face (311), and the end face, far away from the second side arc-shaped formwork (33), of the top side arc-shaped formwork (34) is set to be a matching inclined face (341) and used for being abutted to and tightly matched with the limiting inclined face (311).

6. The diversion tunnel construction of claim 2 is with full circle template lining device, its characterized in that: each arc-shaped template is provided with a working window (35) and a grouting opening (36).

7. The diversion tunnel construction of claim 1 is with full circle template lining device, its characterized in that: the top parts of the two ends of the beam frame (2) are respectively provided with an anti-floating top support (8) which can be adjusted in a telescopic mode.

8. The diversion tunnel construction of claim 7 is with full circle template lining device, its characterized in that: and supporting legs (11) are arranged at two ends of the needle beam (1).

9. The diversion tunnel construction of any one of claims 1 to 8 is with full circle template lining device, characterized in that: and a driving mechanism (9) for driving the beam frame (2) to move is arranged on the needle beam (1).

10. The diversion tunnel construction is with full circle template lining device of claim 9, its characterized in that: actuating mechanism (9) are including hoist engine (91) and stay cord (92), the both ends of roof beam frame (2) all are equipped with traction wheel (21), the both ends of needle roof beam (1) all are equipped with fixed pulley (12), the one end of needle roof beam (1) is located in hoist engine (91), on hoist engine (91) was located to the one end of stay cord (92), the other end was fixed at the other end of the one end of needle roof beam (1), and the middle part is around locating fixed pulley (12) and traction wheel (21).