Underground roadway lining formwork supporting device

Abstract

The utility model discloses an underground roadway lining formwork supporting device. The underground roadway lining formwork supporting device comprises an outer frame, a formwork assembly and a supporting mechanism. The outer frame comprises two oppositely-arranged stand columns and an arch-shaped plate which is arranged on the tops of the two stand columns and detachably connected with the two stand columns. The formwork assembly comprises two vertical wall formworks arranged on the outer sides of the two stand columns respectively and a vault formwork arranged on the outer side of the arch-shaped plate, and the two ends of the vault formwork are detachably connected with the top ends of the two vertical wall formworks. The vertical wall template and the vault template are respectively formed by detachably connecting a plurality of sections; the two stand columns abut against the two sides of the supporting mechanism correspondingly, and the arch-shaped plate is supported on the top of the supporting mechanism. The underground roadway lining formwork supporting device can be disassembled and transferred, the occupied space is small in the transferring process, transferring is convenient and fast, the construction efficiency can be improved, and the construction cost can be saved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel lining construction devices, in particular to an underground tunnel lining template support device. Background Art

[0002] In underground mining projects, a large number of tunnels need to be excavated underground. Considering the influence of surrounding rock stress, in order to ensure the stability and safety of the tunnels, most mine tunnels are designed with a three-center arch section. Some tunnels, such as belt tunnels and tunnels with soft and broken surrounding rocks, require concrete lining construction to enhance the durability and stability of the tunnels. However, traditional underground tunnel lining formwork devices generally include vertical formwork and arch formwork (such as the mobile formwork for tunnel tunnel chamber lining construction with application number 202022202453.6). The vertical formwork and arch formwork usually adopt an integral design. Due to the large size of the integral formwork, a large amount of valuable tunnel space is occupied during the transportation process, which not only brings inconvenience to the construction work, but may also affect the normal progress of other construction activities in the tunnel. For belt tunnels, which require long-distance lining operations and have a small design cross-section, the limited construction space poses a huge challenge to workers and construction machinery. The support device of the integral formwork and the transportation process of the formwork itself are cumbersome and time-consuming, which not only slows down the construction progress but may also cause project delays. In addition, the integral formwork needs to be replaced as a whole after it is worn out, which increases construction costs and is not conducive to cost control and maximizing project benefits. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the existing technology and provide an underground tunnel lining formwork support device which can be disassembled and transported, occupies little space during the transport process, is convenient to transport, and is conducive to improving construction efficiency and saving construction costs.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A support device for underground tunnel lining formwork, comprising an outer frame, a formwork assembly and a support mechanism; the outer frame comprises two oppositely arranged columns, an arched plate provided on the top of the two columns and detachably connected to the two columns; the formwork assembly comprises two vertical wall formworks respectively provided on the outsides of the two columns, and an arched top formwork provided on the outsides of the arched plate, the two ends of the arched top formworks being detachably connected to the top ends of the two vertical wall formworks; the vertical wall formworks and the arched top formworks are both detachably connected by multiple sections; the two columns respectively abut against the two sides of the support mechanism, and the arched plate is supported on the top of the support mechanism.

[0006] As a further improvement of the above technical solution:

[0007] The support mechanism includes a support frame, the arched plate is supported on the top of the support frame, and side supports with laterally adjustable positions are respectively provided on both sides of the support frame, and the side supports are against corresponding columns.

[0008] The side support member is threadedly connected to the support frame.

[0009] A bottom seat is provided at the bottom of the support frame.

[0010] The base is threadedly connected to the support frame.

[0011] A shaping frame is provided on the inner side of the arch plate, and the shaping frame is supported on the top of the supporting frame.

[0012] The forming frame includes a first reinforcing link and multiple second reinforcing links, the two ends of the first reinforcing link are respectively fixedly connected to the two ends of the arch plate, the second reinforcing link is fixed between the arch plate and the first reinforcing link, and the first reinforcing link is supported on the top of the support frame.

[0013] The first reinforcement link is fixedly connected to the support frame via a fixing piece.

[0014] A first connecting plate and a second connecting plate are respectively provided at opposite ends of the column and the arch plate, and the first connecting plate and the second connecting plate are connected by locking screws.

[0015] There are multiple outer frames, which are arranged at intervals along the length direction of the lane.

[0016] As a further improvement of the above technical solution: the columns and the arched plates are arranged in multiple rows at intervals along the length direction of the tunnel.

[0017] Compared with existing technologies,

[0018] The advantages of the present invention are as follows: the underground tunnel lining formwork support device disclosed by the present invention, during the construction process, first the outer frame, formwork assembly and support mechanism are disassembled into various parts, the formwork assembly is disassembled into various sections, and then dispersedly transported to the underground tunnel to be lined position for formwork construction. The specific formwork construction process: first place the support mechanism on the bottom of the tunnel, then assemble the columns and arch plates on the support mechanism, form an outer frame on the outside of the support mechanism, and finally, splice the formwork assembly section by section along the extension direction of the outer frame on the outside of the outer frame to form the local underground tunnel lining formwork support device as a whole. Conversely, the local underground tunnel lining formwork support device can be disassembled and then the construction position can be adjusted and moved out of the tunnel. Compared with the integral design, the local underground tunnel lining formwork support device can be disassembled and transported, the transportation process takes up little space, the transportation is convenient and efficient, and it is convenient for construction in the underground tunnel, and each component can be replaced independently, reducing the replacement cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the utility model of an underground tunnel lining formwork supporting device.

[0020] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure of part A.

[0021] Figure 3 yes Figure 1 Schematic diagram of the enlarged structure of part B.

[0022] Figure 4 yes Figure 1 Schematic diagram of the enlarged structure of part C.

[0023] The numbers in the figure represent:

[0024] 1. Column; 11. First connecting plate; 2. Arch plate; 21. Second connecting plate; 3. Vertical wall formwork; 31. Rigid formwork; 4. Arch formwork; 41. Curved formwork; 5. Support mechanism; 51. Support frame; 511. Crossbar; 512. Vertical bar; 513. Longitudinal bar; 52. Side support; 53. Base; 54. Fixing part; 6. First reinforcing link; 7. Second reinforcing link; 8. Locking screw. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] In this utility model, unless otherwise specified or limited, the terms "assemble," "connect," "connect," "fix," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0028] Figures 1 to 4An embodiment of the underground tunnel lining formwork support device of the utility model is shown. The underground tunnel lining formwork support device of this embodiment includes an outer frame, a formwork assembly and a support mechanism 5; the outer frame includes two oppositely arranged columns 1, and an arch plate 2 provided on the top of the two columns 1 and detachably connected to the two columns 1; the formwork assembly includes two vertical wall formworks 3 respectively provided on the outside of the two columns 1, and an arch formwork 4 provided on the outside of the arch plate 2, and the two ends of the arch formwork 4 are detachably connected to the top of the two vertical wall formworks 3; the vertical wall formworks 3 and the arch formwork 4 are detachably connected by multiple sections; the two columns 1 respectively abut against the two sides of the support mechanism 5, and the arch plate 2 is supported on the top of the support mechanism 5.

[0029] The local underground tunnel lining formwork support device, during the construction process, first disassemble the outer frame, formwork assembly and support mechanism 5 into various parts, and then disassemble the formwork assembly into various sections, and then disperse and transport them to the underground tunnel to be lined for formwork construction. The specific formwork construction process: first place the support mechanism 5 on the bottom of the tunnel, and then assemble the column 1 and the arch plate 2 on the support mechanism 5, forming an outer frame on the outside of the support mechanism 5, and finally, on the outside of the outer frame, splice the formwork assembly in sections along the extension direction of the outer frame to form the local underground tunnel lining formwork support device as a whole. Conversely, the local underground tunnel lining formwork support device can be disassembled and then the construction position can be adjusted and moved out of the tunnel. Compared with the integral design, the local underground tunnel lining formwork support device can be disassembled and transported. The transportation process takes up little space, and the transportation is convenient and efficient, which is convenient for construction in the underground tunnel. Moreover, each component can be replaced independently, reducing the replacement cost.

[0030] Furthermore, if Figure 1 and Figure 2 As shown, in this embodiment, the support mechanism 5 includes a support frame 51, with the arched plate 2 supported on top of the support frame 51. Laterally adjustable side supports 52 are provided on either side of the support frame 51. The side supports 52 abut against the corresponding upright posts 1. The abutment between the upright posts 1 and the support frame 51 via the laterally adjustable side supports 52 facilitates assembly and disassembly.

[0031] Furthermore, if Figure 2 As shown, in this embodiment, the side support member 52 is threadedly connected to the support frame 51. By rotating the side support member 52, the lateral position of the side support member 52 is adjusted to achieve the contact and separation between the side support member 52 and the column 1. The structure is simple and the operation is convenient.

[0032] Furthermore, if Figure 3 As shown, in this embodiment, a base 53 is provided at the bottom of the support frame 51. The support frame 51 is supported on the bottom of the underground tunnel by the base 53.

[0033] Furthermore, in this embodiment, the base 53 is threadedly connected to the support frame 51. By rotating the base 53, the height of the support frame 51 from the bottom of the underground tunnel can be adjusted, thereby adjusting the position of the template assembly to meet the height requirements of the formwork, with a simple structure and easy operation.

[0034] Furthermore, in this embodiment, a shaping frame is provided on the inner side of the arched plate 2, and the shaping frame is supported on the top of the support frame 51. The shaping frame improves the stability of the arched plate 2 structure.

[0035] Furthermore, if Figure 1 As shown, in this embodiment, the forming frame includes a first reinforcing link 6 and a plurality of second reinforcing links 7, the two ends of the first reinforcing link 6 are respectively fixedly connected to the two ends of the arch plate 2, the second reinforcing link 7 is fixed between the arch plate 2 and the first reinforcing link 6, and the first reinforcing link 6 is supported on the top of the support frame 51. It should be noted that the plurality of second reinforcing links 7 are of different lengths and are arranged along the arc length direction corresponding to the inner wall of the arch plate 2. When the arch plate 2 is under pressure, the pressure is transmitted to the first reinforcing link 6 through the second reinforcing link 7, the lateral pressure is borne by the first reinforcing link 6, and the vertical pressure is transmitted to the support mechanism 5 via the horizontal first reinforcing link 6, which greatly enhances the compressive resistance of the arch plate 2. Preferably, the two ends of the first reinforcement link 6 are detachably fixed to the inner walls of the arch plate 2, and the two ends of the second reinforcement link 7 are detachably fixed to the arch plate 2 and the first reinforcement link 6, which facilitates the disassembly and transportation of the arch plate 2, the first reinforcement link 6 and the second reinforcement link 7, and also facilitates the maintenance and replacement of related components.

[0036] Furthermore, in this embodiment, the first reinforcing connecting rod 6 is fixedly connected to the support frame 51 via a fixing member 54. The fixing member 54 is a clamp, a bolt, or the like.

[0037] Furthermore, if Figure 4 As shown, in this embodiment, a first connecting plate 11 and a second connecting plate 21 are respectively provided at opposite ends of the column 1 and the arch plate 2 , and the first connecting plate 11 and the second connecting plate 21 are connected by locking screws 8 .

[0038] Furthermore, in this embodiment, multiple outer frames are provided, spaced apart along the length of the tunnel. The spacing between the outer frames is determined by the length of the vertical wall formwork 3 and the vault formwork 4. The vertical wall formwork 3 and the vault formwork 4 are positioned outside each outer frame, allowing the concrete pressure to be simultaneously transmitted to each outer frame, enhancing stability and safety during use.

[0039] It should be noted that the outer side refers to the side away from the center of the tunnel, and the inner side refers to the side close to the center of the tunnel.

[0040] Furthermore, in this embodiment, the shape and size of the arch plate 2 are adapted to the arch of the tunnel. The vertical wall formwork 3 includes a plurality of rigid formworks 31, which are detachably connected in sequence along the vertical direction. The arch formwork 4 includes a plurality of curved formworks 41 which are detachably connected in sequence. The uppermost rigid formwork 31 is detachably connected to the corresponding lowermost curved formwork 41 (see for details). Figure 1 ). The detachable connection between each template can be a bolt connection, where the bolt passes through the connection hole between the two adjacent templates, and then the two templates are locked together with a nut; it can also be a snap connection, where one of the two adjacent templates is provided with a card slot, and the other template is provided with a protrusion corresponding to the card slot, and the two adjacent templates are locked by snapping the protrusion into the card slot, or other detachable connection methods, the details of which are not repeated here. Of course, in other embodiments, the rigid template 31 and the curved template 41 can also be detachably provided at corresponding positions on the two columns 1 and the arch plate 2, and the rigid templates 31 and the curved templates 41 can also be separable.

[0041] Furthermore, after the installation of the columns 1, the arched plates 2, and the supporting mechanism 5 is completed, the rigid formwork 31 and the curved formwork 41 can be installed one by one in sequence to form a complete vertical wall formwork 3 and the arch formwork 4. Conversely, during the disassembly process, the rigid formwork 31 and the curved formwork 41 can be disassembled one by one in sequence. The disassembly and assembly process does not require reliance on large-scale lifting machinery, and the disassembly and assembly are more convenient, effectively saving construction space and improving construction efficiency. Since a single rigid formwork 31 and curved formwork 41 are small in size and light in weight, they are easy to transport to the next construction site, reducing the impact on roadway traffic and other construction operations. In addition, when a rigid formwork 31 or curved formwork 41 is damaged, only the damaged part needs to be replaced separately, without replacing the entire structure, which greatly saves maintenance costs and the time spent on maintenance.

[0042] Furthermore, in this embodiment, a first connecting plate 11 is provided at the top of the column 1, and a second connecting plate 21 is provided at both ends of the arch plate 2. The first connecting plate 11 is connected to the second connecting plate 21 by a locking screw 8. The locking screw 8 has a simple structure, is reliable in use, and is easy to assemble and disassemble. Preferably, the locking screw 8 is provided with multiple (see Figure 4 ), thereby enhancing the connection strength between the first connecting plate 11 and the second connecting plate 21.

[0043] Furthermore, in this embodiment, the support frame 51 has a horizontal bar 511 and a vertical bar 512. The side supports 52 are threadedly connected to the horizontal bar 511, the base 53 is threadedly connected to the vertical bar 512, and the vertical bar 512 is fixedly connected to the first reinforcing link 6 via a fixing member 54. During concrete pouring, the concrete will apply pressure to the vertical wall formwork 3 and the vault formwork 4, which is then transmitted to the columns 1 and the arched plate 2. The support frame 51 bears the pressure from the two columns 1 through the horizontal bar 511 and the pressure from the arched plate 2 through the vertical bar 512. This can effectively prevent the vertical wall formwork 3 and the vault formwork 4 from displacement, facilitating the smooth progress of lining construction.

[0044] Furthermore, in this embodiment, the support frame 51 is a fastener-type steel pipe frame, and conventional fasteners are provided at the connection between the vertical rods 512 and the horizontal rods 511. During installation and disassembly, it is only necessary to simply align the corresponding positions of the vertical rods 512, the horizontal rods 511 and the longitudinal rods 513, and then toggle the fasteners to lock or release the vertical rods 512, the horizontal rods 511 and the longitudinal rods 513 to complete the installation and disassembly. The installation and arrangement of the support frame 51 are more convenient, saving installation time.

[0045] Furthermore, the two ends of the first reinforcing link 6 are respectively connected to the inner walls on both sides of the arch plate 2, the two ends of the second reinforcing link 7 are respectively connected to the arch plate 2 and the first reinforcing link 6, and the top of the vertical rod 512 is detachably connected to the first reinforcing link 6. It should be noted that the multiple second reinforcing links 7 are of different lengths and are arranged along the arc length direction of the inner wall of the arch plate 2. When the arch plate 2 is under pressure, the pressure is transmitted to the first reinforcing link 6 through the second reinforcing link 7, the lateral pressure is borne by the first reinforcing link 6, and the vertical pressure is transmitted to the vertical rod 512 via the horizontal first reinforcing link 6, which greatly enhances the compressive strength of the arch plate 2. Preferably, the two ends of the first reinforcing link 6 are respectively detachably connected to the inner walls on both sides of the arch plate 2, and the two ends of the second reinforcing link 7 are respectively detachably connected to the arch plate 2 and the first reinforcing link 6, which facilitates the disassembly and transportation of the arch plate 2, the first reinforcing link 6 and the second reinforcing link 7, and also facilitates the maintenance and replacement of related components.

[0046] Furthermore, in this embodiment, the first reinforcing connecting rod 6 and the second reinforcing connecting rod 7 are both hollow steel pipes. The hollow steel pipes are relatively light in weight and are more convenient to transport.

[0047] Furthermore, in this embodiment, the column 1 is an I-beam, which has high compressive strength and tensile strength, can withstand large loads, and has good stability during use. Of course, in other embodiments, the column 1 can be other steel sections.

[0048] A method of using the underground tunnel lining formwork support device of this embodiment is as follows: first, install the two columns 1 at the corresponding positions of the tunnel, and install the first reinforcement link 6 and the second reinforcement link 7 on the arch plate 2. Then install the arch plate 2 on the two columns 1 by using the locking screws 8 and the locking nuts. Then, use fasteners to lock the vertical rods 512, the horizontal rods 511 and the longitudinal rods 513 to form a support frame 51, and then connect the vertical rods 512 to the first reinforcement link 6, and the horizontal rods 511 to the two columns 1. Then install multiple rows of outer frames according to the above steps. After that, connect each rigid formwork 31 and each curved formwork 41 in sequence on the outside of each outer frame. After the connection is completed, start pouring concrete to carry out lining construction. After the lining work is completed, the rigid formwork 31 and the curved formwork 41 are first removed. Then, the column 1 and the first reinforcing link 6 are separated from the support frame 51. The column 1 is separated from the arch plate 2. The first reinforcing link 6 and the second reinforcing link 7 are then removed from the arch plate 2. Finally, the components are transported to the next construction site for assembly. The above steps are repeated until the lining work in the tunnel is completed.

[0049] Although the present invention has been disclosed above with reference to preferred embodiments, this is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the present invention, utilize the technical content disclosed above to make many possible changes and modifications to the present invention, or modify it into equivalent embodiments with equivalent variations. Therefore, any simple modifications, equivalent variations, and modifications to the above embodiments that do not depart from the content of the present invention and are based on the technical essence of the present invention shall fall within the scope of protection of the present invention.

Claims

1. An underground tunnel lining formwork support device, characterized by: The invention comprises an outer frame, a template assembly and a support mechanism (5); the outer frame comprises two oppositely arranged columns (1), an arched plate (2) arranged on the top of the two columns (1) and detachably connected to the two columns (1); the template assembly comprises two vertical wall templates (3) respectively arranged on the outside of the two columns (1), and an arched top template (4) arranged on the outside of the arched plate (2); the two ends of the arched top template (4) are detachably connected to the top ends of the two vertical wall templates (3); the vertical wall templates (3) and the arched top template (4) are both detachably connected by a plurality of sections; the two columns (1) respectively abut against the two sides of the support mechanism (5), and the arched plate (2) is supported on the top of the support mechanism (5).

2. The underground tunnel lining formwork support device according to claim 1, characterized in that: The support mechanism (5) comprises a support frame (51), the arched plate (2) is supported on the top of the support frame (51), and side supports (52) with laterally adjustable positions are respectively provided on both sides of the support frame (51), and the side supports (52) are against corresponding columns (1).

3. The underground tunnel lining formwork support device according to claim 2, characterized in that: The side support member (52) is threadedly connected to the support frame (51).

4. The underground tunnel lining formwork support device according to claim 2, characterized in that: A base (53) is provided at the bottom of the support frame (51).

5. The underground tunnel lining formwork support device according to claim 4, characterized in that: The base (53) is threadedly connected to the support frame (51).

6. The underground tunnel lining formwork support device according to claim 2, characterized in that: A shaping frame is provided on the inner side of the arched plate (2), and the shaping frame is supported on the top of the supporting frame (51).

7. The underground tunnel lining formwork support device according to claim 6, characterized in that: The shaping frame comprises a first reinforcing link (6) and a plurality of second reinforcing links (7), the two ends of the first reinforcing link (6) are respectively fixedly connected to the two ends of the arch plate (2), the second reinforcing link (7) is fixed between the arch plate (2) and the first reinforcing link (6), and the first reinforcing link (6) is supported on the top of the support frame (51).

8. The underground tunnel lining formwork support device according to claim 7, characterized in that: The first reinforcing connecting rod (6) is fixedly connected to the support frame (51) via a fixing member (54).

9. The underground tunnel lining formwork support device according to any one of claims 1 to 8, characterized in that: A first connecting plate (11) and a second connecting plate (21) are respectively provided at opposite ends of the column (1) and the arch plate (2); the first connecting plate (11) and the second connecting plate (21) are connected via locking screws (8).

10. The underground tunnel lining formwork support device according to any one of claims 1 to 8, characterized in that: There are multiple outer frames, which are arranged at intervals along the length direction of the lane.

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