Secondary lining trolley for main tunnel and widened belt of highway tunnel

Abstract

The utility model belongs to the technical field of tunnel construction, and particularly relates to a highway tunnel main tunnel and broadband secondary lining trolley which comprises a bracket cross beam, a bracket stand column is fixedly connected to the bracket cross beam, and the bracket stand column is located below an upper template and fixedly connected with the upper template. A longitudinal beam is further arranged below the bracket cross beam, one end of the longitudinal beam is fixedly connected with the bracket cross beam, and the other end of the longitudinal beam is connected with a translation oil cylinder; the bracket cross beam is slidably connected to the top of the portal cross beam.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of tunnel construction, and particularly relates to a highway tunnel main tunnel and widening two lining trolley. BACKGROUND

[0002] The length of a highway tunnel is generally several hundred meters to several kilometers, and when the length of the tunnel is greater than 500 meters, an emergency parking belt needs to be arranged on the right side of the tunnel to facilitate the driver to deal with emergency events. A highway tunnel with a length greater than 500 meters is generally provided with an emergency parking belt in the middle, and the width of the parking belt is greater than the width of the tunnel. When lining the tunnel, concrete is poured into a pouring area surrounded by the formwork on the trolley and the tunnel wall, and after the concrete solidifies, a semicircular inner wall of the tunnel is formed. When lining the parking belt, the formwork of the ordinary trolley is too small to be combined with the tunnel wall to form a pouring area, which leads to pouring difficulty.

[0003] The length of the emergency parking belt is generally 50 meters, and the width of the emergency parking belt is increased by about 3 meters compared with the normal tunnel width. The main tunnel of the tunnel is generally considered to be 12 meters or 9 meters, but when the widening section is constructed, the formwork can be arranged outside the main tunnel trolley, or the main tunnel trolley can be modified. There are various ways to construct the emergency parking belt: conventional method 1: modifying the main tunnel two lining trolley to construct the emergency parking belt, and conventional method 2: arranging the formwork outside the main tunnel trolley to construct the emergency parking belt. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at overcoming the defects of the prior art, and provides a highway tunnel main tunnel and widening two lining trolley, which combines the widening and the main tunnel trolley, reduces the disassembly and assembly time and cost, correspondingly reduces the construction safety risk, shortens the installation time, improves the installation condition, and solves the technical problems of the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A highway tunnel main tunnel and widening two lining trolley, which comprises a bracket cross beam, the bracket cross beam is fixedly connected with a bracket stand column, the bracket stand column is located below an upper formwork and is fixedly connected with the upper formwork, a longitudinal beam is further arranged below the bracket cross beam, one end of the longitudinal beam is fixedly connected with the bracket cross beam, and the other end is connected with a translation oil cylinder, the bracket cross beam is slidingly connected to the top of a portal frame cross beam, and the translation oil cylinder drives the bracket cross beam to slide along the portal frame cross beam to adjust the width of the trolley and realize the integrated construction of the main tunnel and the widening section.

[0007] Specifically, support lead screws are rotatably connected to the top of the portal frame cross beam and the bracket cross beam, and the top of the support lead screws is rotatably connected with the upper formwork.

[0008] Specifically, a plurality of portal frame stand columns are fixedly connected below the portal frame cross beam, and the portal frame stand columns are symmetrically arranged.

[0009] Specifically, the upper template bottom is provided with a lower template, the lower template and the portal column are connected through a template connecting beam, the template connecting beam is fixed on one side of the lower template,

[0010] Specifically, the template connecting beam and the portal column are rotationally connected with a lateral oil cylinder, the template connecting beam and one side of the lower template and the portal column are rotationally connected with a lateral screw rod. The translation oil cylinder and the lateral oil cylinder respectively adjust the lateral displacement of the bracket cross beam and the lateral expansion of the lower template, so that the trolley is switched between the normal hole mode and the widened section mode.

[0011] Specifically, the portal column bottom is provided with a walking mechanism, the walking mechanism includes a vertical oil cylinder and a sleeve, the vertical oil cylinder and the sleeve are fixed on one side of one of the portal columns, a support rod is slidably connected in the sleeve, the walking system is installed at the bottom of the support rod, and one end of the piston rod of the vertical oil cylinder is fixed with the support rod.

[0012] Specifically, the portal column outside is provided with a working platform.

[0013] The utility model discloses a translation oil cylinder drive bracket cross beam sliding, and the lateral oil cylinder adjusts the expansion angle of the lower template, so that the same trolley can adapt to the construction demand of the normal hole standard section and the widened section without disassembling. Specifically, in the normal hole mode, the trolley is contracted to the standard width, in the widened section mode, the translation oil cylinder pushes the bracket cross beam to expand laterally, and the lateral oil cylinder drives the lower template to expand outward, forming a widened pouring space.

[0014] The utility model has the following advantages:

[0015] Compared with the traditional trolley with additional portal, the utility model can reduce the disassembly and assembly times, reduce the disassembly and assembly time and cost, and also correspondingly reduce the construction safety risk, and the widened trolley and the normal hole trolley are combined to save the equipment procurement cost. The utility model realizes the structure innovation, and the trolley has the self-adaptive adjusting function, can seamlessly switch the normal hole and the widened section construction mode, and solves the poor equipment reusability in the traditional scheme. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structure schematic view of the utility model embodiment;

[0017] Figure 2 It is the structure schematic view of the utility model embodiment side;

[0018] Figure 3 It is the widened trolley and the contact passage state schematic view;

[0019] Figure 4 It is the widened trolley and the normal hole state schematic view.

[0020] In the diagram: 1. Upper formwork; 2. Bracket column; 3. Bracket beam; 4. Translation cylinder; 5. Longitudinal beam; 6. Gantry beam; 7. Gantry column; 8. Lower formwork; 9. Lateral threaded rod; 10. Working platform; 11. Lateral cylinder; 12. Vertical cylinder; 13. Formwork connecting beam; 14. Sleeve; 15. Lower longitudinal beam; 16. Walking system; 17. Formwork support jack. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings.

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] In the description of this utility model, it should be understood that the terms "opening", "upper", "middle", "length", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] To keep the following description of the embodiments of this utility model clear and concise, detailed descriptions of known functions and known components are omitted.

[0025] Example:

[0026] like Figures 1-2 As shown in the figure, this embodiment provides a highway tunnel main tunnel and widened secondary lining trolley, including a bracket beam. A bracket column is fixedly connected to the bracket beam, and the bracket column is located below the upper template and fixedly connected to the upper template. A longitudinal beam is also provided below the bracket beam. One end of the longitudinal beam is fixedly connected to the bracket beam, and the other end is connected to a translation cylinder. The bracket beam is slidably connected to the top of the gantry beam. The translation cylinder drives the bracket beam to move and unfold the trolley. When unfolding, the translation cylinder is activated, which drives the bracket beam to move to one side, thereby causing the upper template to be moved and unfolded.

[0027] In this embodiment, the top of both the gantry beam and the bracket beam are rotatably connected to a support screw, and the top of the support screw is rotatably connected to the upper template.

[0028] In this embodiment, multiple gantry columns are fixedly connected below the gantry beam, and the gantry columns are arranged symmetrically.

[0029] In the embodiment, the upper mold plate bottom is provided with a lower mold plate, the lower mold plate is connected with the portal column through a mold plate connecting beam, the mold plate connecting beam is fixed on one side of the lower mold plate, and one side of the bottom of the lower mold plate is rotationally connected with an inclined mold plate supporting jack.

[0030] In the embodiment, the mold plate connecting beam and the portal column are rotationally connected with a lateral oil cylinder, and the mold plate connecting beam and one side of the lower mold plate are rotationally connected with a lateral screw rod.

[0031] In the embodiment, the portal column bottom is provided with a walking mechanism, the walking mechanism includes a vertical oil cylinder and a sleeve, the vertical oil cylinder and the sleeve are fixed on one side of one of the portal columns, a supporting rod is slidably connected in the sleeve, a walking system is installed on the bottom of the supporting rod, and one end of a piston rod of the vertical oil cylinder is fixed on the supporting rod.

[0032] In the embodiment, the portal column outer side is provided with a working platform.

[0033] When the main hole is constructed, the translation oil cylinder is contracted, the bracket cross beam drives the upper mold plate to reset to the standard width, the lateral oil cylinder is synchronously contracted, the lower mold plate is tightly attached to the portal column, and a standard section pouring space is formed.

[0034] When the widening section is constructed, the translation oil cylinder is started, the bracket cross beam is pushed to slide along the portal cross beam in the transverse direction, the upper mold plate is expanded to the widening position, the lateral oil cylinder is extended, the lower mold plate is driven to expand outward through the mold plate connecting beam, the lower mold plate is combined with the tunnel wall of the widening section, and an expanded pouring area is formed.

[0035] The utility model is not limited to the foregoing specific embodiments. The utility model extends to any new feature or any new combination disclosed in the specification, and any new method or process step or any new combination.

Claims

1. A two-lining trolley for a main tunnel and widening of a highway tunnel, characterized in that, The bracket cross beam is fixedly connected with bracket columns, the bracket columns are below the upper die plate and fixedly connected with the upper die plate, and a longitudinal beam is further arranged below the bracket cross beam, one end of the longitudinal beam is fixedly connected with the bracket cross beam, and the other end is connected with a translation oil cylinder.

2. The two-lining trolley for highway tunnel main tunnel and widening according to claim 1, characterized in that, The top of the portal cross beam and the top of the bracket cross beam are rotatably connected with support lead screws, and the top of the support lead screws is rotatably connected with the upper die plate.

3. The two-lining trolley for widening the main tunnel according to claim 1, characterized in that, A plurality of portal columns are fixedly connected below the portal cross beam, and the portal columns are symmetrically arranged.

4. The two-lining trolley for widening the main tunnel according to claim 2, characterized in that, The bottom of the upper die plate is provided with a lower die plate, the lower die plate and the portal columns are connected through a die plate connecting beam, and the die plate connecting beam is fixed on one side of the lower die plate.

5. The two-lining trolley for widening the main tunnel according to claim 3, characterized in that, The die plate connecting beam and the portal columns are rotatably connected with lateral oil cylinders, and the die plate connecting beam and one side of the lower die plate and the portal columns are rotatably connected with lateral lead screws, and the lateral oil cylinders drive the lateral expansion of the lower die plate.

6. The two-lining trolley for widening the main tunnel according to claim 2, characterized in that, The bottom of the portal column is provided with a walking mechanism, the walking mechanism includes a vertical oil cylinder and a sleeve, the vertical oil cylinder and the sleeve are fixed on one side of one of the portal columns, a support rod is slidably connected in the sleeve, the walking mechanism is installed at the bottom of the support rod, and one end of the piston rod of the vertical oil cylinder is fixed with the support rod.

7. The two-lining trolley for widening the main tunnel according to claim 2, characterized in that, The portal column is provided with a working platform outside.

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