Cable trough template for ditch of single-hole single-track railway tunnel

Abstract

The utility model discloses a self-propelled rack and provides a ditch cable trough template for a single-hole and single-track railway tunnel, belongs to the technical field of tunnel construction, and aims to solve the problems that the existing splicing mode of small scattered templates needs great manpower and material resources, the lined contour effect and straightness are poor, and the construction cost is high. And the construction efficiency and the construction period cannot be guaranteed. Specifically, the tunnel ditch cable trough formwork comprises a communication trough box type formwork, a ditch trough box type formwork and a power cable trough box type formwork, and the communication trough box type formwork, the ditch trough box type formwork and the power cable trough box type formwork are connected through a box girder formwork adjusting assembly. Through the box girder formwork adjusting assembly, the distance between the communication groove box-type formwork, the water groove box-type formwork and the power cable groove box-type formwork can be adjusted.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel construction, in particular to a single-hole single-track railway tunnel ditch cable trough template. Background Art

[0002] With the vigorous development of domestic railways, the speed of railway tunnel construction is accelerating, and the requirements for the quality and efficiency of tunnel trench cable trough construction are gradually increasing. Slowly, the traditional use of loose formwork for construction can no longer meet the current construction requirements.

[0003] The most commonly used method for single-hole single-track railway tunnel ditch cable trough is to assemble small pieces of templates and then support and fix them. This method seems simple, but it requires a lot of manpower and material resources, and the contour effect and straightness of the lining are very poor, and the construction efficiency and construction period cannot be guaranteed. Another way is to use a simple hanger with scattered templates for construction. Although this method reduces manpower, it occupies a lot of tunnel space, and other construction processes in the tunnel cannot be carried out at the same time, affecting the overall construction efficiency of the tunnel. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a single-hole single-track railway tunnel ditch cable trough template, which can not only improve the pouring quality of the ditch cable trough construction during tunnel construction, but also greatly improve the tunnel construction efficiency.

[0005] The technical solution adopted by this utility model:

[0006] A single-hole single-track railway tunnel ditch cable trough template, the template comprises a communication trough box template, a ditch trough box template and a power cable trough box template, the communication trough box template, the ditch trough box template and the power cable trough box template are connected by a box beam template adjustment component, and the spacing between the communication trough box template, the ditch trough box template and the power cable trough box template can be adjusted by the box beam template adjustment component.

[0007] In the above technical solution, the box beam formwork adjustment assembly includes a box-type formwork adjustment clamping tube, and two box-type formwork adjustment clamping tubes are provided. The two box-type formwork adjustment clamping tubes are adjacent and staggeredly connected above the trough box-type formwork, the ditch box-type formwork and the power cable trough box-type formwork. The two box-type formwork adjustment clamping tubes are connected by a box-type formwork adjustment screw, and the staggered distance of the two box-type formwork adjustment clamping tubes is adjusted by rotating the box-type formwork adjustment screw.

[0008] In the above technical solution, further, the communication trough box-type template, the water ditch box-type template and the power cable trough box-type template are all welded with box-type template positioning plates, and the box-type template adjustment clamp tube is connected to the box-type template positioning plate.

[0009] In the above technical scheme, further, the template also includes a box-type template fixing tube and a side wall template, the communication trough box-type template, the water ditch box-type template, the power cable trough box-type template and the side wall template are connected by the box-type template fixing tube, and the free end of the box-type template fixing tube is connected to the tunnel arch wall through a fixing component.

[0010] In the above technical scheme, further, the fixing assembly includes a fixing head and a formwork support fixing seat, one end of the fixing seat is connected to the free end of the box-type formwork fixing tube through a groove position adjusting screw, and the other end is connected to the formwork support fixing seat through a pin shaft, and the formwork support fixing seat is fixed to the tunnel arch wall through an anchor bolt.

[0011] In the above technical solution, further, a side formwork adjusting screw is provided at the bottom of the side wall formwork.

[0012] In the above technical solution, further, the box-type formwork fixing pipe is connected to the box-type formwork positioning plate through an inclined iron.

[0013] In the above technical solution, further, the surfaces of the communication trough box-type template, the water ditch box-type template and the power cable trough box-type template are covered with retractable rubber sheets.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model optimizes the existing single-line single-hole ditch cable trough construction method, greatly reducing the occupation of tunnel clearance by ordinary construction machinery. When the lining construction of the ditch cable trough is carried out, other tunnel construction processes can be carried out at the same time without interfering with each other. The efficiency of tunnel construction is greatly improved and the construction period is reduced.

[0016] 2. When constructing lining for single-line single-hole ditch cable trough, the utility model greatly improves the construction efficiency, reduces the construction labor and machinery costs, and shortens the construction period compared with ordinary loose templates and simple hangers.

[0017] 3. The utility model can meet the tunnel construction requirements of single-line single-hole tunnel ditch cable trough which has very strict requirements on the space occupied by the stand during lining. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is the lining status of the ditch cable trough template and stand (front view).

[0020] Figure 2 This is the assembly drawing of the ditch cable trough template and side wall template (top view).

[0021] Figure 3 This is the shrinkage and fixing diagram of the ditch cable trough template and the stand box template.

[0022] Figure 4 This is a schematic diagram of the ditch cable trough template.

[0023] Figure 5 This is the lining status of the ditch cable trough template and stand (side view).

[0024] Figure 6 This is the status of the ditch cable trough template and the stand hoisting and mold transfer (front view).

[0025] Figure 7 This is the status of the ditch cable trough template and the stand hoisting and mold transfer (side view).

[0026] Figure 8 This is the diagram of the gantry steering and rotary mechanism.

[0027] Fig. 9 It is a schematic diagram of the connection between the steering cylinder and the steering slewing mechanism.

[0028] Among them, 1. Lined water ditch, 2. Tunnel invert filling surface, 3. Ditch cable trough being lined, 4. Communication trough box formwork, 5. Ditch box formwork, 6. Power cable trough box formwork, 7. Box formwork positioning plate, 8. Box formwork fixing pipe, 9. Groove position adjustment screw, 10. Fixed head, 11. Formwork support fixing seat, 12. Turnbuckle bolt, 13. Side formwork adjustment screw, 14. Active walking box, 15. Motor reducer, 16. Side wall formwork, 17. Anti-floating pull rod, 18. Winch, 19. Upper crossbeam, 20. Upper longitudinal beam, 21. Upper cross brace, 22. Column, 23. Bottom longitudinal beam, 24. Steering Slewing mechanism, 24-1, connecting flange under slewing support, 24-2, slewing support under, 24-3, steering handle, 24-4, outer sleeve, 24-5, slewing support, 24-6, connecting flange on slewing support, 24-7, plane bearing, 24-8, deep groove bearing, 24-9, retaining ring, 24-10, shaft clamping ring, 25, passive walking box, 26, steering cylinder, 27, cylinder seat, 28, lifting ear seat, 29, U-shaped lifting ring, 30, upper longitudinal beam diagonal brace, 31, winch track, 32, box-type template adjustment clamping tube, 33, box-type template adjustment ear seat, 34, box-type template adjustment screw, 35, hydraulic station. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Example 1

[0032] Reference Figure 1-4 As shown, this embodiment provides a single-hole single-track railway tunnel ditch cable trough template, which includes a communication trough box-type template 4, a ditch trough box-type template 5 and a power cable trough box-type template 6. The communication trough box-type template 4, the ditch trough box-type template 5 and the power cable trough box-type template 6 are connected by a box beam template adjustment component, and the spacing between the communication trough box-type template 4, the ditch trough box-type template 5 and the power cable trough box-type template 6 is adjusted by the box beam template adjustment component.

[0033] The communication trough box template 4, the water ditch box template 5 and the power cable trough box template 6 are all welded with a box template positioning plate 7. The box beam template adjustment assembly includes a box template adjustment clamping tube 32, and two box template adjustment clamping tubes 32 are provided. The two box template adjustment clamping tubes 32 are adjacent and staggered and distributed above the trough box template, the water ditch box template 5 and the power cable trough box template 6, and are connected to the box template positioning plate 7. The two box template adjustment clamping tubes 32 are connected by a pin shaft through a box template adjustment screw. By rotating the box template adjustment screw, the communication trough box template 4, the water ditch box template 5 and the power cable trough box template 6 can be retracted.

[0034] A box-type template adjusting ear seat 33 is welded on the box-type template adjusting clamping tube 32 , and the box-type template adjusting ear seat 33 is connected with a box-type template adjusting lead screw 34 .

[0035] First, the offset distance between the two box-type template adjusting clamping tubes 32 is adjusted by rotating the rotating box-type template adjusting screw 34, and then the box-type template adjusting clamping tube 32 and the box-type template positioning plate 7 are fixed and locked by the inclined iron.

[0036] The above template also includes a box template fixing pipe 8 and a side wall template 16 during the lining process of the ditch cable trough 3. The communication trough box template 4, the ditch trough box template 5, the power cable trough box template 6 and the side wall template 16 are connected through the box template fixing pipe 8. The box template fixing pipe 8 and the box template positioning plate 7 are fixed and locked with an inclined iron. A side template adjusting screw 13 is provided at the bottom of the side wall template 16. The height of the side wall template 16 is adjusted by the side template adjusting screw 13, and the end face of the box template fixing pipe 8 located in the tunnel is fixed by an anti-floating pull rod 17.

[0037] In this embodiment, a fixing assembly is provided at one end of the box-type formwork fixing tube 8 close to the tunnel arch wall, and the fixing assembly includes a fixing head 10 and a formwork support fixing seat 11. One end of the fixing seat is connected to the free end of the box-type formwork fixing tube 8 through a groove position adjusting screw 9, and the other end is connected to the formwork support fixing seat 11 through a pin shaft. The formwork support fixing seat 11 is fixed to the tunnel arch wall through an anchor bolt.

[0038] The above-mentioned tunnel ditch cable trough template requires a trackless self-propelled stand during the demoulding process, such as Figure 5-9 As shown, the trackless self-propelled gantry includes an active walking mechanism, a passive walking and steering mechanism, a gantry and a hoisting mechanism, wherein two sets of the active walking mechanism and the passive walking and steering mechanism are provided, which are distributed at the bottom of two adjacent gantrys along the tunnel excavation direction, and the bottoms of the two adjacent gantrys are connected by a bottom longitudinal beam 23, and the tops of the two gantrys are connected by an upper longitudinal beam 20.

[0039] The active walking mechanism includes a dynamic vulcanized rubber wheel, an active walking box 14 and a motor reducer 15. The active walking box 14 is connected to the bottom longitudinal beam 23 through a flange, the active walking box 14 and the motor reducer 15 are connected with bolts, and the motor reducer 15 and the active vulcanized rubber wheel are connected with a chain.

[0040] The passive walking and steering mechanism includes a passive vulcanized rubber wheel, a passive walking box 25, a steering cylinder 26 and a steering swivel mechanism 24. The passive walking box 25 and the steering swivel mechanism 24 are connected by flanges, and the steering swivel mechanism 24 is connected by flanges to the bottom longitudinal beam 23 of the platform. The cylinder casing of the steering cylinder 26 is welded to the bottom of the bottom longitudinal beam 23 through the cylinder seat 27, and the piston rod of the steering cylinder 26 is connected to the steering swivel mechanism 24.

[0041] like Figure 8As shown, the steering slewing mechanism 24 includes a slewing support lower connecting flange 24-1, a slewing support lower 24-2, a steering handle 24-3, an outer sheath 24-4, a slewing support upper 24-5 and a slewing support upper connecting flange 24-6. The slewing support lower 24-2 and the slewing support upper 24-5 are arranged between the slewing support lower connecting flange 24-1 and the slewing support upper connecting flange 24-6, and the outer sheath 24-4, Steering handle 24-3, the steering handle 24-3 is fixed on the bottom surface of the slewing support 24-2, a plane bearing 24-7 and a deep groove bearing 24-8 are arranged between the outer sleeve 24-4 and the side wall of the slewing support 24-2, and the top surface of the deep groove bearing 24-8 is connected to the bottom surface of the slewing support 24-5, and a retaining ring 24-9 and a shaft clamping ring 24-10 are also arranged between the side wall of the slewing support 24-2 and the inner wall of the groove of the slewing support 24-5. The slewing support lower connecting flange 24-1 and the passive walking box 25 are connected by bolts, and the steering handle 24-3 and the piston rod of the steering cylinder 26 are connected by a pin shaft.

[0042] At least two racks are provided, and the distance between the front and rear racks is 13 meters. The box-type template of the ditch cable trough can be hoisted to the center of the tunnel to facilitate the transportation of the template. Each rack includes a column 22 and an upper crossbeam 19. The bottom of the column 22 is connected to the bottom longitudinal beam 23 with a flange, and the top is connected to the upper crossbeam 19 with a flange. The upper crossbeam 19 between two adjacent racks is connected through an upper longitudinal beam 20. The upper crossbeam 19 and the upper longitudinal beam 20 are connected with flanges, and an upper crossbeam 21 is provided between the upper crossbeam 19 and the side wall of the column 22. The upper crossbeam 19 is connected and reinforced by the upper crossbeam 21. An upper longitudinal beam diagonal brace 30 is provided between the side wall of the column 22 and the upper longitudinal beam 20, and the upper longitudinal beam diagonal brace 30 is used to reinforce its connection.

[0043] The distance between the left and right columns 22 is 3.3 meters, which allows concrete pump trucks and other tunnel construction machinery vehicles to pass normally.

[0044] The hoisting mechanism includes a winch 18 and a U-shaped lifting ring 29 . The upper longitudinal beam 20 is connected to a winch track 31 via a flange. The winch 18 is installed on the winch track 31 , and the U-shaped lifting ring 29 is installed at the end of the wire rope of the winch 18 .

[0045] A lifting lug seat 28 is also provided on the tunnel ditch cable trough template, and the winch 18 is hung on the lifting seat of the template system through a U-shaped lifting ring 29.

[0046] Working principle:

[0047] The box template of the ditch cable trough is in place

[0048] The communication trough box template 4, the water ditch box template 5, and the power cable trough box template 6 are connected with the box template adjusting clamp tube 32, and then the communication trough box template 4, the water ditch box template 5, the power cable trough box template 6 and the side wall template 16 are connected with the box template fixing tube 8. The box template fixing tube 8 and the box template positioning plate 7 are fixed and locked with inclined irons. The box template fixing tube 8 and the fixed head 10 are connected with the groove position adjusting screw 9, the fixed head 10 and the template support fixing seat 11 are connected with a pin shaft, the template support fixing seat 11 is fixed to the tunnel wall with an anchor bolt, the side wall template 16 is height-adjusted with a side template adjusting screw 13, and the box template fixing tube 8 is fixed with an anti-floating pull rod 17.

[0049] The water ditch cable trough box formwork is completely rigidly fixed to the tunnel wall and the tunnel invert filling surface 2, thereby improving the stress strength of the water ditch cable trough box formwork during lining. That is, the water ditch cable trough box formwork is completely positioned and fixed.

[0050] Demolding of box-type template for ditch cable trough

[0051] After the lining of the ditch cable trough is completed, first remove the pin connecting the fixing head 10 and the template support fixing seat 11, then remove the inclined iron fixed between the box template fixing tube 8 and the box template positioning plate 7, rotate the box template adjustment screw to shrink and demould the communication trough box template 4, the ditch trough box template 5, and the power cable trough box template 6, and then use the winch 18 to hoist the communication trough box template 4, the ditch trough box template 5, and the power cable trough box template 6 as a whole through the lifting ear seat 28 for reverse transportation.

[0052] That is to complete the overall demoulding of the ditch cable trough box-type template.

[0053] Template downtime

[0054] The trackless self-propelled platform can move when the water ditch cable trough box formwork is lifted. The motor reducer 15 drives the active vulcanized rubber wheel to rotate through chain transmission, that is, drives the platform and the formwork system to move. When the platform moves, the steering cylinder 26 can be extended and retracted by adjusting the operating handle of the hydraulic station 35, driving the steering handle 24-3 of the steering rotary mechanism 24 to rotate, and then controlling the passive walking box 25 to rotate, so that the trackless self-propelled platform can make steering adjustments when transporting the formwork system, and transport the formwork system to the next lining station.

[0055] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any way. Any simple modification, change and equivalent change made to the above embodiment according to the technical essence of the utility model still falls within the protection scope of the technical solution of the utility model.

Claims

1. A single-hole single-track railway tunnel ditch cable trough template, characterized in that: The template includes a communication trough box-type template, a water ditch box-type template and a power cable trough box-type template. The communication trough box-type template, the water ditch box-type template and the power cable trough box-type template are connected by a box beam template adjustment component, and the spacing between the communication trough box-type template, the water ditch box-type template and the power cable trough box-type template can be adjusted through the box beam template adjustment component.

2. A single-hole single-track railway tunnel ditch cable trough template according to claim 1, characterized in that: The box beam formwork adjustment assembly includes a box formwork adjustment clamping tube, and two box formwork adjustment clamping tubes are provided. The two box formwork adjustment clamping tubes are adjacent and offset above the trough box formwork, the ditch box formwork and the power cable trough box formwork, and the two box formwork adjustment clamping tubes are connected by a box formwork adjustment screw, and the offset distance of the two box formwork adjustment clamping tubes is adjusted by rotating the box formwork adjustment screw.

3. A single-hole single-track railway tunnel ditch cable trough template according to claim 2, characterized in that: The communication trough box-type templates, the water ditch box-type templates and the power cable trough box-type templates are all welded with box-type template positioning plates, and the box-type template adjusting clamp tubes are connected to the box-type template positioning plates.

4. A single-hole single-track railway tunnel ditch cable trough template according to claim 3, characterized in that: The template also includes a box-type template fixing pipe and a side wall template. The communication trough box-type template, the water ditch box-type template, the power cable trough box-type template and the side wall template are connected through the box-type template fixing pipe. The free end of the box-type template fixing pipe is connected to the tunnel arch wall through a fixing component.

5. A single-hole single-track railway tunnel ditch cable trough template according to claim 4, characterized in that: The fixing assembly includes a fixing head and a formwork support fixing seat. One end of the fixing seat is connected to the free end of the box-type formwork fixing tube through a groove position adjusting screw, and the other end is connected to the formwork support fixing seat through a pin shaft. The formwork support fixing seat is fixed to the tunnel arch wall through an anchor bolt.

6. A single-hole single-track railway tunnel ditch cable trough template according to claim 4, characterized in that: A side formwork adjusting screw is arranged at the bottom of the side wall formwork.

7. A single-hole single-track railway tunnel ditch cable trough template according to claim 4, characterized in that: The box-type formwork fixing pipe is connected to the box-type formwork positioning plate through an inclined iron.

8. The single-hole single-track railway tunnel ditch cable trough template according to claim 4 is characterized in that: The surface of the communication trough box-type template, the water ditch box-type template and the power cable trough box-type template is covered with a retractable rubber sheet.

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