Tunnel construction support

Abstract

The invention relates to the technical field of tunnel construction, in particular to a tunnel construction support which comprises a tunnel dome, an inner supporting framework, a supporting assembly and pulleys. According to the tunnel construction support, the top face and the side faces of a tunnel can be effectively supported in the tunnel construction process, the tunnel dome, the inner supporting framework and the supporting assembly are detachably connected, dismantling after construction is completed is facilitated, or the tunnel construction support is moved to other construction positions to be used, in addition, pulleys are arranged at the bottom of the tunnel construction support, and the tunnel construction support is convenient to use. The tunnel construction support can be rapidly moved to a construction position, and convenience and rapidness are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel construction, and in particular to a tunnel construction support. Background Art

[0002] Subway is a fast, high-capacity, electric-powered rail transit built in cities. The lines in the central urban area are basically set up in underground tunnels. Most of the existing subway tunnels use the shield tunnel construction method, which refers to the use of a shield machine to control the excavation surface and surrounding rock to prevent collapse and instability while tunneling and discharging slag, assembling segments in the machine to form linings, and implementing back-wall grouting, so as to build tunnels without disturbing the surrounding rock. Therefore, during the construction process, it is particularly important to ensure that the tunnel does not collapse and become unstable.

[0003] The prior art often adopts the method of setting a bracket to support the tunnel to ensure the stability of the tunnel. The Chinese patent with publication number CN217925933U discloses a subway tunnel construction bracket, which belongs to the technical field of subway tunnel construction. The subway tunnel construction bracket can push the arc-shaped baffle on the top of the bracket by providing the telescopicity of the first hydraulic rod and the second hydraulic rod, and can support the construction of the tunnel top at different heights by adjusting the telescopic length of the first hydraulic rod and the second hydraulic rod.

[0004] The above-mentioned subway tunnel construction support can only support the top of the tunnel, but cannot provide corresponding support for the two sides of the excavated tunnel. In addition, the support structure is not movable. When the support needs to be moved later, the support needs to be moved to the working position as a whole, or the support structure needs to be dismantled and moved to the working position and then reassembled, which is time-consuming and labor-intensive. Summary of the invention

[0005] The purpose of the present application is to provide a tunnel construction support, which can effectively support the top and side surfaces of the tunnel during the construction process, and a pulley is provided at the bottom of the support to quickly move the support to a working position.

[0006] To achieve the above-mentioned purpose, a tunnel construction support adopted in the present application comprises: a tunnel dome, an inner support frame, a support assembly and a pulley;

[0007] The tunnel dome comprises a ceiling panel and two side panels, the top sides of the two side panels are detachably connected to the two sides of the ceiling panel, and the ceiling panel is used to abut against the top of the tunnel, and the two side panels are used to abut against the two sides of the tunnel respectively, and the ceiling panel and the two side panels are spliced ​​to form an arch shape, and the inner support frame is detachably connected to the ceiling panel and the side panels, and is arranged on the inner side of the tunnel dome;

[0008] The support assembly includes: a support frame, a jacking assembly, an abutment assembly and two groups of side connection assemblies. The support frame is arranged inside the tunnel dome, the pulley is installed at the bottom of the support frame, the jacking assembly is installed at the upper end of the support frame, the abutment assembly is arranged at the top of the jacking assembly, and the jacking assembly can drive the abutment assembly to move upward and then abut against the top of the tunnel dome. The two groups of side connection assemblies are respectively arranged on both sides of the support frame, and the two groups of side connection assemblies are respectively detachably connected to the two sides of the inner support frame.

[0009] As a preferred technical solution, the jacking assembly includes a hydraulic rod, one end of which is fixedly connected to the top of the support frame, and the other end of which is detachably connected to the bottom surface of the abutment assembly.

[0010] As a preferred technical solution, a groove is provided at the top of the hydraulic rod, and the groove is engaged with the bottom of the abutment assembly.

[0011] As a preferred technical solution, the lifting assembly further includes a sliding rod, which is slidably disposed on the top end of the supporting frame, and the top of the sliding rod is detachably connected to the bottom surface of the abutting assembly.

[0012] As a preferred technical solution, the support frame further comprises a plurality of lock holes and latches, and the plurality of lock holes are arranged on the support frame at intervals along the vertical direction;

[0013] A mounting hole is provided at the bottom end of the slide bar, and the latch is used to be installed in the lock hole corresponding to and overlapping with the mounting hole, so as to fix the slide bar.

[0014] As a preferred technical solution, the lifting assembly further includes a clamping portion, which is mounted on the top end of the slide rod, and the top of the clamping portion has a clamping groove for engaging with the abutment assembly.

[0015] As a preferred technical solution, the jacking assembly also includes a reinforcing rod, which is arranged at a distance from the hydraulic rod at the top of the support frame, one end of the reinforcing rod is detachably connected to the support frame, and the other end is detachably connected to the bottom of the abutment assembly.

[0016] As a preferred technical solution, the abutment assembly includes an extension shaft frame, the top of which is arched, the extension shaft frame is arranged at the top of the jacking assembly, and one end of the extension shaft frame is engaged with the snap-in groove, and the other end abuts against the top of the tunnel dome.

[0017] As a preferred technical solution, the abutment assembly further comprises a horizontal axis plate, which is detachably mounted on the bottom of the extension axis frame, and the hydraulic rod and the reinforcing rod are detachably connected to the bottom of the horizontal axis plate respectively.

[0018] As a preferred technical solution, the side connection assembly includes multiple support rods, which are respectively arranged on both sides of the support frame, one end of the support rod is detachably connected to the side of the support frame, and the other end is detachably connected to the side of the inner support frame.

[0019] A tunnel construction support in the present application has a tunnel dome formed by splicing a ceiling plate and two side plates, and the tunnel dome is arched and can fit with the tunnel wall, an inner support frame is connected to the inner side of the tunnel dome to make it more firmly connected, and a support frame is provided, a jacking component is provided at the upper end of the support component, and an abutment component is provided at the upper end of the jacking component, and driving the jacking component can make the abutment component fit closely with the top surface of the tunnel dome, and then support the top surface of the tunnel; side connection components are respectively provided on both sides of the support component, and the two groups of side connection components are respectively hinged to the two sides of the inner support frame, so that the two side surfaces of the tunnel dome fit closely with the two sides of the tunnel, thereby effectively supporting the side surfaces of the tunnel, and the tunnel dome, the inner support frame and the support component are all detachably connected, which is convenient for assembly and disassembly; in addition, a pulley is also provided at the bottom of the support frame, and the pulley can slide along the track in the tunnel to quickly move the tunnel construction support to the construction position, which is convenient and fast, and easy for construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present application is further described in detail below in conjunction with the accompanying drawings and preferred embodiments, but those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be used as a limitation on the scope of the present application. In addition, unless otherwise specified, the drawings are intended only to conceptually represent the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is a front view of the present invention;

[0023] Figure 3 It is a structural schematic diagram of the support frame of the present invention;

[0024] Among them: 1. Tunnel dome; 11. Ceiling panel; 12. Side panel; 2. Internal support frame; 3. Support assembly; 31. Support frame; 32. Lifting assembly; 321. Hydraulic rod; 3211. Groove; 322. Sliding rod; 3221. Snap-in groove; 323. Reinforcing rod; 33. Abutment assembly; 331. Extension shaft frame; 332. Horizontal shaft plate; 34. Side connection assembly; 341. Support rod; 4. Pulley. DETAILED DESCRIPTION

[0025] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0026] In the description of the present application, it should be understood that the terms "front", "rear", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 application. In addition, in the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0027] See also Figure 1-3 , a tunnel construction support provided by an embodiment of the present application, comprising: a tunnel dome 1, an inner support frame 2, a support assembly 3 and a pulley 4;

[0028] The tunnel dome 1 comprises a ceiling panel 11 and two side panels 12, the top sides of the two side panels 12 are detachably connected to the two sides of the ceiling panel 11, and the ceiling panel 11 is used to abut against the top of the tunnel, and the two side panels 12 are used to abut against the two sides of the tunnel respectively, and the ceiling panel 11 and the two side panels 12 are arched after being spliced, and the inner support frame 2 is detachably connected to the ceiling panel 11 and the side panels 12, and is arranged on the inner side of the tunnel dome 1;

[0029] The support assembly 3 includes: a support frame 31, a jacking assembly 32, an abutment assembly 33 and two groups of side connection assemblies 34. The support frame 31 is arranged inside the tunnel dome 1, the pulley 4 is installed at the bottom of the support frame 31, the jacking assembly 32 is installed at the upper end of the support frame 31, the abutment assembly 33 is arranged at the top of the jacking assembly 32, and the jacking assembly 32 can drive the abutment assembly 33 to move upward, and then abut against the top of the tunnel dome 1, the two groups of side connection assemblies 34 are respectively arranged on both sides of the support frame 31, and the two groups of side connection assemblies 34 are respectively detachably connected to the two sides of the inner support frame 2.

[0030] In this embodiment, the detachable connection can be hinged, which is convenient for assembling the tunnel construction support and also convenient for disassembling it after use. The pulley 4 can be a ground rail pulley 4, which can be used to move the assembled support assembly 3 to the inside of the tunnel dome 1 through the track in the tunnel without human movement, and in subsequent work, the pulley 4 can be used to move the entire device along the track to the construction position, which is convenient and fast without wasting manpower.

[0031] Furthermore, the lifting assembly 32 includes a hydraulic rod 321, one end of which is fixedly connected to the top of the support frame 31, and the other end of which is detachably connected to the bottom surface of the abutment assembly 33. The abutment assembly 33 is lifted up to fit with the top surface of the tunnel dome 1 by utilizing the telescopic property of the hydraulic rod 321, thereby supporting the top surfaces of tunnels at different heights.

[0032] Furthermore, a groove 3211 is provided at the top of the hydraulic rod 321, and the groove 3211 is engaged with the bottom of the abutment assembly 33. The groove 3211 is arranged to be engaged with the abutment assembly 33, so that the structure is detachable and easy to install.

[0033] Furthermore, the lifting assembly 32 further includes a sliding rod 322, which is slidably disposed on the top of the support frame 31, and the top of the sliding rod 322 is detachably connected to the bottom surface of the abutting assembly 33. The abutting assembly 33 is lifted up by the sliding rod 322 and the hydraulic rod 321 to fit the top surface of the tunnel dome 1, thereby further strengthening the supporting force on the tunnel top surface.

[0034] Furthermore, the support frame 31 further includes a plurality of lock holes and latches, wherein the plurality of lock holes are arranged at intervals along the vertical direction on the support frame 31; a mounting hole is arranged at the bottom end of the slide bar 322, and the latch is used to be installed in the lock hole corresponding to the mounting hole, so as to fix the slide bar 322. By providing the lock hole, the mounting hole and the latch, the slide bar 322 can be fixed, which is simple and easy to operate.

[0035] Further, the lifting assembly 32 also includes a clamping portion, which is installed at the top of the slide bar 322, and the top of the clamping portion has a clamping groove 3221 for clamping with the abutment assembly 33. The clamping groove 3221 is provided to be clamped with the abutment assembly 33, so that the structure is detachable and easy to install.

[0036] Furthermore, the jacking assembly 32 further includes a reinforcing rod 323, which is spaced apart from the hydraulic rod 321 and arranged at the top of the support frame 31, one end of the reinforcing rod 323 is detachably connected to the support frame 31, and the other end is detachably connected to the bottom of the abutting assembly 33. It is particularly noted that during actual installation, a reinforcing rod 323 of a suitable length needs to be selected according to the distance between the jacking assembly 32 and the abutting assembly 33, so as to strengthen the supporting effect on the abutting assembly 33.

[0037] Furthermore, the abutment assembly 33 includes an extended shaft frame 331, the top of which is arched, and the extended shaft frame 331 is disposed at the top of the jacking assembly 32, and one end of the extended shaft frame 331 is engaged with the engaging groove 3221, and the other end is abutted with the top of the tunnel dome 1. By providing the extended shaft frame 331 with an arched top surface, after it is lifted up and fitted with the top surface of the tunnel dome 1 during jacking, a good supporting effect can be provided for the top surface of the tunnel.

[0038] Furthermore, the abutment assembly 33 further includes a horizontal axis plate 332, which is detachably mounted on the bottom of the extension axis frame 331, and the hydraulic rod 321 and the reinforcing rod 323 are detachably connected to the bottom of the horizontal axis plate 332. The horizontal axis plate 332 is conveniently engaged with the groove 3211 at the top of the hydraulic rod 321, and is conveniently detachably connected with the reinforcing rod 323, and the reinforcing rod 323 and the horizontal axis plate 332 can be hinged.

[0039] Furthermore, the side connection assembly 34 includes a plurality of support rods 341, which are respectively arranged on both sides of the support frame 31, one end of the support rod 341 is detachably connected to the side of the support frame 31, and the other end is detachably connected to the side of the inner support frame 2. The plurality of support rods 341 can be arranged vertically or horizontally on both sides of the support frame 31, and can be connected to the support frame 31 and the inner support frame 2 in an articulated manner, so as to support the side of the tunnel.

[0040] In summary, the tunnel construction support provided in this embodiment is convenient to assemble and disassemble, and can effectively support the top and side surfaces of the tunnel during the construction process. A pulley is provided at the bottom of the support, which can quickly move the support to the working position.

[0041] This specification discloses the present application with reference to the accompanying drawings, and also enables those skilled in the art to implement the present application, including making and using any device or system, using suitable materials, and using any combined method. The scope of the present application is defined by the technical solution for protection, and includes other examples that occur to those skilled in the art. As long as such other examples include structural elements that are not different from the literal language of the technical solution for protection, or such other examples contain equivalent structural elements that are not substantially different from the literal language of the technical solution for protection, such other examples should be considered to be within the scope of protection determined by the technical solution for protection of the present application.

Claims

1. A tunnel construction support, characterized in that: include: Tunnel dome, internal support frame, support components and pulleys; The tunnel dome comprises a ceiling panel and two side panels, the top sides of the two side panels are detachably connected to the two sides of the ceiling panel, and the ceiling panel is used to abut against the top of the tunnel, and the two side panels are used to abut against the two sides of the tunnel respectively, and the ceiling panel and the two side panels are spliced ​​to form an arch shape, and the inner support frame is detachably connected to the ceiling panel and the side panels, and is arranged on the inner side of the tunnel dome; The support assembly includes: a support frame, a jacking assembly, an abutment assembly and two groups of side connection assemblies. The support frame is arranged inside the tunnel dome, the pulley is installed at the bottom of the support frame, the jacking assembly is installed at the upper end of the support frame, the abutment assembly is arranged at the top of the jacking assembly, and the jacking assembly can drive the abutment assembly to move upward and then abut against the top of the tunnel dome. The two groups of side connection assemblies are respectively arranged on both sides of the support frame, and the two groups of side connection assemblies are respectively detachably connected to the two sides of the inner support frame.

2. A tunnel construction support as claimed in claim 1, characterized in that: The lifting assembly comprises a hydraulic rod, one end of which is fixedly connected to the top end of the supporting frame, and the other end of which is detachably connected to the bottom surface of the abutting assembly.

3. A tunnel construction support as claimed in claim 2, characterized in that: The top end of the hydraulic rod is provided with a groove, and the groove is engaged with the bottom of the abutment assembly.

4. A tunnel construction support as claimed in claim 2, characterized in that: The lifting assembly also includes a sliding rod, which is slidably arranged on the top end of the supporting frame, and the top of the sliding rod is detachably connected to the bottom surface of the abutting assembly.

5. A tunnel construction support as claimed in claim 4, characterized in that: The support frame further comprises a plurality of lock holes and latches, wherein the plurality of lock holes are arranged on the support frame at intervals along the vertical direction; A mounting hole is provided at the bottom end of the slide bar, and the latch is used to be installed in the lock hole corresponding to and overlapping with the mounting hole, so as to fix the slide bar.

6. A tunnel construction support as claimed in claim 5, characterized in that: The lifting assembly further comprises a clamping portion, which is mounted on the top end of the slide bar, and a top of the clamping portion comprises a clamping groove for clamping with the abutting assembly.

7. A tunnel construction support as claimed in claim 6, characterized in that: The lifting assembly also includes a reinforcing rod, which is arranged at a distance from the hydraulic rod at the top of the supporting frame. One end of the reinforcing rod is detachably connected to the supporting frame, and the other end is detachably connected to the bottom of the abutting assembly.

8. A tunnel construction support as claimed in claim 7, characterized in that: The abutment assembly comprises an extension shaft frame, the top of which is arched, the extension shaft frame is arranged at the top of the jacking assembly, one end of the extension shaft frame is engaged with the engaging groove, and the other end abuts against the top of the tunnel dome.

9. A tunnel construction support as claimed in claim 8, characterized in that: The abutment assembly further comprises a horizontal axis plate, which is detachably mounted on the bottom of the extension axis frame, and the hydraulic rod and the reinforcing rod are detachably connected to the bottom of the horizontal axis plate respectively.

10. A tunnel construction support as claimed in claim 1, characterized in that: The side connection assembly includes a plurality of support rods, which are respectively arranged on both sides of the support frame, one end of the support rod is detachably connected to the side of the support frame, and the other end is detachably connected to the side of the inner support frame.

Images