Multifunctional trolley for mounting tunnel lagging jack and construction process

Abstract

The invention relates to the technical field of tunnel engineering construction, in particular to a multifunctional trolley for tunnel arch frame installation and a construction technology, the multifunctional trolley comprises a movable base body, and a plurality of walking wheels are installed on the movable base body; the rotating ring is provided with a plurality of locking areas, the rotating ring is located at one end of the moving base body, the rotating ring is rotationally connected with the moving base body, and the rotating axis of the rotating ring is horizontally arranged; the plurality of sliding blocks are circumferentially distributed, a plurality of sliding rails for the sliding blocks to slide are formed on the movable base body in the rotating axis direction of the rotating ring, and the rotating ring corresponds to the sliding rails after rotating, so that the sliding blocks move to the locking area on the sliding rails; the fixing unit is connected with the sliding block; the sliding unit is connected with the movable base body, and the sliding unit is connected with the sliding block; the method has the effects of shortening the waiting time of the tunnel section of the tunneling area to wait for the arch support so as to guarantee the stability of the tunnel structure and improve the construction safety.

Description

Technical Field

[0001] The present application relates to the technical field of tunnel engineering construction, and in particular to a multifunctional trolley and construction process for tunnel arch installation. Background Art

[0002] The tunnel arch is an arch structure built to support the top of the tunnel. Its shape is similar to an arch bridge. It is one of the most common structural forms in tunnel engineering. Its main function is to bear the loads of ground roads, buildings and tunnel interiors, and transfer these loads to the foundation.

[0003] When laying a tunnel arch, in order to reduce the labor intensity of the staff and improve the construction efficiency, construction is generally carried out with the help of a trolley. A trolley for tunnel construction includes a frame, a traveling wheel is arranged on the frame, a track frame is installed on the frame, an "I-shaped" steel track is installed on the track frame, a rack is installed on the outside of the "I-shaped" steel track, and a traveling trolley is installed on the "I-shaped" steel track. The traveling trolley includes a trolley seat, a trolley seat driving motor is installed on the trolley seat, a driving gear is installed on the output shaft of the trolley seat driving motor, and the driving gear is meshed with the rack, a roller shaft is installed on the trolley seat, and a roller is installed on the roller shaft, a pressure wheel shaft is installed on the trolley seat on the inner side of the "I-shaped" steel track, and a pressure wheel is installed on the pressure wheel shaft, the roller contacts the "I-shaped" steel track surface, and the pressure wheel contacts the inner back side of the "I-shaped" steel track; the construction platform is mounted on the trolley seat through the roller shaft.

[0004] With regard to the above-mentioned related technologies, after the front shield machine completes tunnel excavation, the construction trolley and the single arch frame required to form a complete arch frame are first transported to the excavation area simultaneously. Then, the staff uses the operating platform provided by the construction trolley to lift the single arch frame into place and assemble it to obtain a complete arch frame. The complete arch frame is then fixed to the tunnel. At this time, the front shield machine simultaneously carries out tunnel excavation work, and this process is repeated until the entire tunnel arch frame is laid. However, the construction trolley is pushed forward and the arch frame is assembled, lifted and fixed only after the shield machine has completed excavation. This will cause the tunnel section in the excavation area to wait for the arch frame support for a long time, affecting the stability of the tunnel structure and the safety of tunnel construction. Summary of the invention

[0005] In order to shorten the waiting time for the arch support in the tunnel section of the excavation area to ensure the stability of the tunnel structure and improve the construction safety, the present application provides a multifunctional trolley and construction process for tunnel arch installation.

[0006] The present application provides a multifunctional trolley for tunnel arch installation and a construction process that adopts the following technical solutions: In a first aspect, the present application provides a multifunctional trolley for installing a tunnel arch.

[0007] A multifunctional trolley for tunnel arch installation, comprising: A mobile base, on which a plurality of running wheels are mounted; A rotating ring having a plurality of locking areas, the rotating ring being located at one end of the moving base, the rotating ring being rotatably connected to the moving base, and the rotating axis of the rotating ring being arranged horizontally; A plurality of sliding blocks, the plurality of sliding blocks are distributed around a circle, a plurality of sliding tracks for the sliding blocks to slide are formed on the moving base along the rotation axis direction of the rotating ring, and the rotating ring corresponds to the sliding tracks after rotation, so that the sliding blocks move to the locking area on the sliding tracks; A plurality of fixing units for fixing a single arch frame, wherein the fixing units are connected to the sliding block; A sliding unit is used for driving the sliding block to slide, wherein the sliding unit is connected to the moving base, and the sliding unit is connected to the sliding block.

[0008] By adopting the above technical scheme, a shield machine is first used to excavate the tunnel to obtain an excavation area; then the trolley is driven to move to the excavation area, and then the trolley is fixed, and the assembly of a single arch frame on the ground is started; then the sliding unit is used to move the sliding blocks of the current batch to the locking area, and then the rotating ring is driven and the single arch frame is fixed through the fixing unit, and then the single arch frame is lifted by continuing to rotate; the sliding unit is used to move the sliding blocks of the current batch along the sliding track to the excavation area again, and then the arch frame is fixed on the inner wall of the tunnel, and then drilling and grouting operations are performed, and at the same time, the sliding unit is used to drive the sliding blocks of the rotating batch in an idle state to move to the locking area, and then the rotating ring is driven and the single arch frame is fixed through the fixing unit, and then the single arch frame is lifted by continuing to rotate for standby use; after the construction of the tunnel arch frame at the current construction position is completed, the trolley Move to the next construction position along the excavation direction of the shield machine, and repeat the installation and sliding operations of the single arch frame until the tunnel construction is completed; the designed multifunctional trolley for tunnel arch frame installation can be used as an installation basis through the mobile base, and the position of the single arch frame can be lifted by the rotating ring, the sliding block and the fixed unit. The sliding block can be used as the installation basis of the fixed unit, and the position of the single arch frame can be driven to move by realizing position change between the sliding track and the locking area. The sliding unit can drive the sliding block to change position between the sliding track and the locking area, and then the arch frame required for the next construction position can be assembled and lifted while the arch frame construction is completed at the current construction position, shortening the preliminary waiting time required for the arch frame construction at the next construction position, thereby ensuring the stability of the tunnel structure and improving construction safety.

[0009] In a specific embodiment, the sliding unit comprises A driving block, the driving block is movably connected to the moving base, and the driving block moves along the axial direction of the rotating ring; An arc-shaped disk, the arc-shaped disk is rotatably connected to the driving block, the arc-shaped disk has a plurality of force-applying protrusions, a gap for the sliding block to pass through is reserved between two adjacent force-applying protrusions, and after the arc-shaped disk rotates, the sliding block and the force-applying protrusions can have an overlapping area along the axial direction of the rotating ring; A sliding mechanism for driving the driving block to slide, wherein the sliding mechanism is connected to the moving base, and the sliding mechanism is connected to the driving block; A reset mechanism is used for driving the sliding block to reset to the sliding track in the locking area, wherein the reset mechanism is connected to the moving base, and the reset mechanism is connected to the sliding block.

[0010] By adopting the above technical scheme, the driving block is driven by the sliding mechanism to move along the axial direction of the rotating ring. The movement of the driving block drives the arc disk to move at the same time. The rotation of the arc disk is controlled and the force-applying protrusion is controlled to correspond to the sliding block of the current batch. At this time, the sliding block of the rotating batch corresponds to the gap between the two adjacent sliding blocks, and then the driving block is moved toward the locking area until the sliding block enters the locking area. At this time, the sliding block is separated from the sliding track, and the rotating ring is driven to rotate. After the position change of the single arch frame is completed, it is rebounded and the sliding block is moved back to the sliding track through the reset mechanism. The designed sliding unit can drive the driving block to move along the axial direction of the rotating ring through the sliding mechanism, and then drive the arc disk to move. The selective pushing of the sliding blocks of the current batch and the rotating batch can be realized through the arc disk and the force-applying protrusion, and the sliding block can be pushed out of the locking area and reset to the sliding track through the reset mechanism.

[0011] In a specific embodiment, the sliding mechanism comprises A pulling cable connected to the driving block; Two winding rollers, the winding rollers are rotatably connected to the moving base, the driving block is located between the two winding rollers, and one end of the pulling cable is connected to the winding rollers; Two driving motors are provided, wherein the driving motors are connected to the moving base, and the output shafts of the driving motors are connected to the winding rollers.

[0012] By adopting the above technical solution, the sliding mechanism is designed, and the winding roller can be driven to rotate through the driving motor, and the winding roller can drive the pulling cable to move, thereby driving the driving block to move.

[0013] In a specific possible implementation manner, the movable base has a guide rib, the driving block is provided with an insertion groove for the guide rib to extend into, and the driving block is rotatably connected to a plurality of rolling columns, and the rolling columns are rollingly connected to the movable base and the guide rib.

[0014] By adopting the above technical solution, the designed guide ribs and rolling columns can reduce the friction loss and movement resistance when the driving block moves.

[0015] In a specific embodiment, the reset mechanism comprises A reset hydraulic cylinder, the reset hydraulic cylinder is connected to the movable base, and the axial direction of the piston rod of the reset hydraulic cylinder is consistent with the axial direction of the rotating ring; The mounting frame is connected to the piston rod of the reset hydraulic cylinder, and a plurality of ejection rods are connected to the mounting frame, and the ejection rods can extend into the locking area and abut against the sliding block.

[0016] By adopting the above technical solution, a reset mechanism is designed, which can drive the mounting frame to move through the reset hydraulic cylinder. Multiple ejection rods can be installed through the mounting frame and drive the ejection rods to move axially along the rotating ring, thereby moving the sliding block from the locking area to the sliding track.

[0017] In a specific implementation scheme, two support bodies are connected to the driving block, and the two support bodies are respectively located on both sides of the arc disk, and a plurality of balls for abutting against the arc disk are rotatably embedded in the support body close to the arc disk.

[0018] By adopting the above technical solution, the designed support body and ball bearings can support the arc disk.

[0019] In a specific embodiment, the fixing unit comprises A Y-shaped frame having two branch parts, the Y-shaped frame is slidably connected to the sliding block, and the branch parts of the Y-shaped frame are connected with clamps for clamping a single arch frame; A telescopic cylinder is connected to the sliding block, and a piston rod of the telescopic cylinder is connected to the Y-shaped frame, and is used to drive the Y-shaped frame to slide along the radial direction of the rotating ring.

[0020] By adopting the above technical solution, a fixing unit is designed, in which a clamp can be installed through a Y-shaped frame, a single arch frame can be fixed through the clamp, and the Y-shaped frame can be driven to slide through a telescopic cylinder, thereby making the single arch frame adhere to the inner wall of the tunnel.

[0021] In a specific possible implementation manner, the force-applying protrusion is slidably connected to the arc-shaped disk, and the force-applying protrusion slides along the radial direction of the arc-shaped disk.

[0022] By adopting the above technical solution, the force-applying protrusion designed to be slidably connected to the arc disk can achieve the staggered distribution of multiple sliding blocks in the same batch along the axial direction of the rotating ring, which is convenient for cooperating with the telescopic cylinder to reduce the possibility of collision between a single arch frame and the inner wall of the tunnel when the trolley moves forward.

[0023] In a second aspect, the present application provides a tunnel construction process based on a multifunctional trolley for tunnel arch installation.

[0024] A construction process based on a multifunctional trolley for tunnel arch installation, comprising: S1: Tunnel excavation, using a shield machine to excavate the tunnel to obtain the excavation area; S2: Construction preparation, drive the trolley to the excavation area, then fix the trolley and start assembling the single arch frame on the ground; S3: Arch lifting: Move the current batch of sliding blocks to the locking area through the sliding unit, then drive the rotating ring and fix the single arch through the fixing unit, and then continue to rotate to lift the single arch; S4: Arch frame installation, the sliding blocks of the current batch are moved along the sliding track to the excavation area by the sliding unit again, and then the arch frame is fixed on the inner wall of the tunnel, and then the drilling and grouting operation is carried out. At the same time, the sliding unit drives the sliding blocks of the rotating batch in the idle state to move to the locking area, and then drives the rotating ring and fixes the single arch frame through the fixing unit, and then continues to rotate to lift the single arch frame for standby use; S5: The trolley moves forward, and when the tunnel arch construction at the current construction position is completed, the trolley moves to the next construction position along the tunneling direction of the shield machine, and repeats step S4 until the tunnel construction is completed.

[0025] By adopting the above technical scheme, the mobile base can be used as an installation basis, the position of a single arch frame can be lifted by means of a rotating ring in conjunction with a sliding block and a fixed unit, the sliding block can be used as an installation basis for the fixed unit, and the position of the single arch frame can be moved by realizing position change between the sliding track and the locking area, and the sliding unit can drive the sliding block to change position between the sliding track and the locking area, thereby completing the arch frame construction at the current construction position and assembling and lifting the arch frame required for the next construction position, thereby shortening the preliminary waiting time required for the arch frame construction at the next construction position, thereby ensuring the stability of the tunnel structure and improving construction safety.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The multifunctional trolley for tunnel arch installation is designed. The mobile base can be used as the installation basis. The position of a single arch can be lifted by the rotating ring, the sliding block and the fixed unit. The sliding block can be used as the installation basis of the fixed unit, and the position of the single arch can be moved by changing the position between the sliding track and the locking area. The sliding unit can drive the sliding block to change the position between the sliding track and the locking area, and then the arch construction at the current construction position can be completed while the arch construction at the next construction position can be assembled and lifted, shortening the preliminary waiting time required for the arch construction at the next construction position, thereby ensuring the stability of the tunnel structure and improving construction safety.

[0027] 2. The multifunctional trolley designed for tunnel arch installation can drive the driving block to move along the axial direction of the rotating ring through the sliding mechanism, and then drive the arc disk to move. The arc disk and the force-applying protrusion can realize the selective pushing of the sliding blocks of the current batch and the rotating batch. The sliding block can be pushed out of the locking area and reset to the sliding track through the reset mechanism.

[0028] 3. The multifunctional trolley designed for tunnel arch installation can realize the staggered distribution of multiple sliding blocks in the same batch along the axial direction of the rotating ring through the force-applying protrusions slidably connected to the arc-shaped disk, thereby facilitating the reduction of the possibility of collision between a single arch and the inner wall of the tunnel when the trolley moves forward. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the structure of a multifunctional trolley for installing a tunnel arch frame according to an embodiment of the present application.

[0030] Figure 2 yes Figure 1 Enlarged view of part A in the middle.

[0031] Figure 3 is Figure 1 Schematic diagram of the three-dimensional structure after adding sliding units to the foundation.

[0032] Figure 4 yes Figure 3 A sectional view of the rotating ring, wherein the sectional plane is arranged perpendicular to the axial direction of the rotating ring.

[0033] Figure 5 yes Figure 3 Enlarged view of part B in the middle.

[0034] Figure 6 is Figure 3 Schematic diagram of the three-dimensional structure after adding a reset mechanism on the basis.

[0035] Explanation of the accompanying drawings: 1. Moving base; 2. Rotating ring; 21. Locking area; 3. Sliding block; 4. Sliding track; 5. Fixed unit; 51. Y-shaped frame; 52. Clamping claw; 53. Telescopic cylinder; 6. Sliding unit; 61. Driving block; 611. Rolling column; 62. Arc disk; 63. Force-applying protrusion; 64. Sliding mechanism; 641. Pulling rope; 642. Winding roller; 643. Driving motor; 65. Resetting mechanism; 651. Resetting hydraulic cylinder; 652. Mounting frame; 653. Ejection rod; 7. Guide rib; 8. Support body. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-6 This application is described in further detail.

[0037] The embodiments of the present application disclose a multifunctional trolley and a construction process for installing a tunnel arch frame.

[0038] In a first aspect, an embodiment of the present application discloses a multifunctional trolley for installing a tunnel arch.

[0039] Reference Figure 1 A multifunctional trolley for installing a tunnel arch frame includes a mobile base 1 and a plurality of running wheels, the running wheels are bolted to the bottom end of the mobile base 1, the number of running wheels in the present application can be four, eight, or other numbers, as long as the smooth movement of the mobile base 1 can be achieved, and the number of running wheels in the present embodiment is four; a rotating ring 2 is rotatably connected to one end of the mobile base 1, and the rotating axis of the rotating ring 2 is horizontally arranged, and a rotating cylinder is welded and fixed to the rotating ring 2 through a plurality of fixing rods, the rotating ring 2 is rotatably connected to the mobile base 1 through the rotating cylinder, and a plurality of locking areas 21 are welded and fixed to the rotating ring 2, and the plurality of locking areas 21 are distributed circumferentially around the axis of the rotating ring 2.

[0040] Reference Figure 1 and Figure 2 Furthermore, it also includes a plurality of sliding blocks 3, which are distributed circumferentially around the axis of the rotating ring 2. A plurality of sliding tracks 4 are welded on the mobile base 1, and each sliding track 4 is composed of two monorails. A gap is left between the two monorails for the sliding of the sliding block 3. The sliding track 4 is laid along the axis direction of the rotating ring 2, and the sliding block 3 can slide on the sliding track 4. After the rotating ring 2 rotates around its own axis, the locking area 21 can correspond to the position of the sliding track 4, so that the sliding block 3 moves to the locking area 21 on the sliding track 4.

[0041] Reference Figure 2In order to fix a single arch frame, a plurality of fixing units 5 are also included. The fixing units 5 are connected to the sliding block 3. Specifically, the fixing units 5 include a Y-shaped frame 51, a clamping claw 52 and a telescopic cylinder 53. The Y-shaped frame 51 has two branches. The sliding block 3 is integrally connected with a protrusion. The Y-shaped frame 51 is slidably connected to the sliding block 3 through the protrusion. The sliding direction of the Y-shaped frame 51 is set along the radial direction of the rotating ring 2. The branch of the Y-shaped frame 51 is bolted to the clamping claw 52, ​​and the clamping claw 52 is used to clamp and fix a single arch frame. In the present application, the clamp 52 can be any fixed structure that can clamp the steel bars constituting the single arch frame. The telescopic cylinder 53 is bolted to the sliding block 3, and the piston rod of the telescopic cylinder 53 is connected to the Y-frame 51, which is used to drive the Y-frame 51 to slide. The clamp 52 can be installed through the Y-frame 51, and the single arch frame can be fixed through the clamp 52. The Y-frame 51 can be driven to slide through the telescopic cylinder 53, thereby making the single arch frame adhere to the inner wall of the tunnel.

[0042] Reference Figure 3 and Figure 4 In order to drive the sliding block 3 to slide between the sliding track 4 and the locking area 21, it also includes a sliding unit 6, which is connected to the moving base 1, and the sliding unit 6 is connected to the sliding block 3. Specifically, the sliding unit 6 includes a driving block 61, an arc disk 62 and a plurality of force-applying protrusions 63. A guide rib 7 is welded on the moving base 1, and an insertion groove for matching with the guide rib 7 is opened on the driving block 61, and a plurality of rolling columns 611 are rotatably connected to the driving block 61. The rolling columns 611 are rollingly connected to the moving base 1 and the guide rib 7, thereby extending the service life and movement resistance of the driving block 61.

[0043] Reference Figure 4 The arc disk 62 is rotatably connected to the driving block 61, and the rotation axis of the arc disk 62 is consistent with the rotation axis direction of the rotating ring 2. The arc disk 62 and the driving block 61 adopt a damping rotation method. The rotation drive of the arc disk 62 can be achieved by a rotating motor or by other methods. There are multiple force-applying protrusions 63, and multiple force-applying protrusions 63 are circumferentially connected to the arc disk 62. A gap is left between two adjacent force-applying protrusions 63 for the sliding block 3 to pass through. After the arc disk 62 rotates, the sliding block 3 and the force-applying protrusions 63 can generate an overlapping area along the axial direction of the rotating ring 2.

[0044] Reference Figure 4Furthermore, in order to facilitate the support of the arc disk 62, two support bodies 8 are bolted to the driving block 61, and the two support bodies 8 are respectively located on opposite sides of the arc disk 62, and a plurality of balls for abutting against the arc disk 62 are rotatably embedded on one side of the support body 8 close to the arc disk 62; further, the force-applying protrusion 63 is slidably connected to the arc disk 62, and the force-applying protrusion 63 slides radially along the arc disk 62. In the present application, the force-applying protrusion 63 can be pushed by an electric telescopic rod or by other mechanisms; the staggered distribution of multiple sliding blocks 3 in the same batch along the axial direction of the rotating ring 2 can be achieved, so as to facilitate the cooperation with the telescopic cylinder 53 to reduce the possibility of collision between a single arch frame and the inner wall of the tunnel when the trolley moves forward.

[0045] Reference Figure 3 and Figure 5 Furthermore, in order to facilitate the sliding of the driving block 61, the sliding unit 6 also includes a sliding mechanism 64, which is connected to the movable base 1, and the sliding mechanism 64 is connected to the driving block 61. Specifically, the sliding mechanism 64 includes a pulling cable 641, a winding roller 642 and a driving motor 643. The pulling cable 641 is bolted to the driving block 61. There are two winding rollers 642 and two driving motors 643. The winding roller 642 is rotatably connected to the movable base 1, and the driving block 61 is located between the two winding rollers 642. The two ends of the pulling cable 641 are respectively connected to the two winding rollers 642, and the pulling cable 641 has a movable margin on the winding roller 642 to facilitate the reciprocating movement of the driving block 61. The driving motor 643 is bolted to the movable base 1, and the output shaft of the driving motor 643 is coaxially connected to the winding roller 642.

[0046] Reference Figure 6 Furthermore, in order to facilitate pushing the sliding block 3 back from the locking area 21 to the sliding track 4, the sliding unit 6 also includes a reset mechanism 65, which is connected to the mobile base 1 and can be connected to the sliding block 3. Specifically, the reset mechanism 65 includes a reset hydraulic cylinder 651, a mounting frame 652 and a plurality of ejection rods 653. The reset hydraulic cylinder 651 is bolted to the mobile base 1, and the axial direction of the piston rod of the reset hydraulic cylinder 651 is consistent with the axial direction of the rotating ring 2. The mounting frame 652 is located on the side of the rotating ring 2 away from the mobile base 1, and the piston rod of the reset hydraulic cylinder 651 passes through the inner cavity of the rotating cylinder and is bolted to the mounting frame 652. The number of ejection rods 653 is consistent with the number of locking areas 21. The ejection rod 653 is welded and fixed to the mounting frame 652, and the ejection rod 653 can extend into the locking area 21 and abut against the sliding block 3.

[0047] The implementation principle of a multifunctional trolley for installing a tunnel arch frame in an embodiment of the present application is as follows: first, a shield machine is used to excavate the tunnel to obtain an excavation area; then the trolley is driven to move to the excavation area, and then the trolley is fixed, and the assembly of a single arch frame on the ground is started; then the sliding block 3 of the current batch is moved to the locking area 21 by the sliding unit 6, and then the rotating ring 2 is driven and the single arch frame is fixed by the fixing unit 5, and then the single arch frame is lifted by continuing to rotate; the sliding block 3 of the current batch is moved to the excavation area along the sliding track 4 by the sliding unit 6 again, and then the arch frame is fixed on the inner wall of the tunnel, and then drilling and grouting operations are performed, and at the same time, the sliding block 3 of the rotating batch in an idle state is driven to move to the locking area 21 by the sliding unit 6, and then the rotating ring 2 is driven and the single arch frame is fixed by the fixing unit 5, and then the single arch frame is lifted by continuing to rotate for standby use; wait After the tunnel arch construction at the current construction position is completed, the trolley moves to the next construction position along the shield machine's excavation direction, and the installation and sliding operations of the single arch frame are repeated until the tunnel construction is completed; the mobile base 1 can be used as an installation basis, and the position of the single arch frame can be lifted by cooperating with the sliding block 3 and the fixed unit 5 through the rotating ring 2. The sliding block 3 can be used as the installation basis of the fixed unit 5, and the position change between the sliding track 4 and the locking area 21 can be achieved to drive the single arch frame to achieve position movement. The sliding unit 6 can drive the sliding block 3 to change position between the sliding track 4 and the locking area 21, and then the arch frame required for the next construction position is assembled and lifted while the arch construction at the current construction position is completed, thereby shortening the preliminary waiting time required for the arch construction at the next construction position, thereby ensuring the stability of the tunnel structure and improving construction safety.

[0048] In a second aspect, an embodiment of the present application discloses a tunnel construction process based on a multifunctional trolley for tunnel arch installation.

[0049] Reference Figure 1-Figure 6 , a construction process based on a multifunctional trolley for tunnel arch installation, comprising: S1: Tunnel excavation, using a shield machine to excavate the tunnel to obtain the excavation area; S2: Construction preparation, drive the trolley to the excavation area, then fix the trolley and start assembling the single arch frame on the ground; S3: Arch lifting, the current batch of sliding blocks 3 are moved to the locking area 21 through the sliding unit 6, and then the rotating ring 2 is driven to fix the single arch through the fixing unit 5, and then the single arch is lifted by continuing to rotate; S4: Arch frame installation, the current batch of sliding blocks 3 are moved along the sliding track 4 to the excavation area by the sliding unit 6 again, and then the arch frame is fixed on the inner wall of the tunnel, and then the drilling and grouting operation is carried out. At the same time, the rotating batch of sliding blocks 3 in the idle state are driven by the sliding unit 6 to move to the locking area 21, and then the rotating ring 2 is driven and the single arch frame is fixed by the fixing unit 5, and then the single arch frame is continued to rotate to lift it for standby use; S5: The trolley moves forward, and when the tunnel arch construction at the current construction position is completed, the trolley moves to the next construction position along the tunneling direction of the shield machine, and repeats step S4 until the tunnel construction is completed.

[0050] By adopting the above technical scheme, the mobile base 1 can be used as an installation basis, and the position of a single arch frame can be lifted by the rotating ring 2 in cooperation with the sliding block 3 and the fixed unit 5. The sliding block 3 can be used as the installation basis of the fixed unit 5, and the position change between the sliding track 4 and the locking area 21 can be achieved to drive the single arch frame to achieve position movement. The sliding unit 6 can drive the sliding block 3 to change position between the sliding track 4 and the locking area 21, and then the arch frame required for the next construction position can be assembled and lifted while the arch frame construction is completed at the current construction position, thereby shortening the preliminary waiting time required for the arch frame construction at the next construction position, thereby ensuring the stability of the tunnel structure and improving construction safety.

[0051] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A multifunctional trolley for tunnel arch installation, characterized in that: include: A mobile base (1), wherein a plurality of running wheels are mounted on the mobile base (1); A rotating ring (2) having a plurality of locking areas (21), the rotating ring (2) being located at one end of the moving base (1), the rotating ring (2) being rotatably connected to the moving base (1), and the rotating axis of the rotating ring (2) being arranged horizontally; A plurality of sliding blocks (3), the plurality of sliding blocks (3) being distributed around a circle, a plurality of sliding tracks (4) for sliding the sliding blocks (3) being formed on the movable base (1) along the rotation axis direction of the rotating ring (2), and the rotating ring (2) being aligned with the sliding tracks (4) after rotation, so that the sliding blocks (3) are moved to the locking area (21) on the sliding tracks (4); A plurality of fixing units (5) for fixing a single arch frame, wherein the fixing units (5) are connected to the sliding block (3); A sliding unit (6) is used for driving a sliding block (3) to slide, wherein the sliding unit (6) is connected to the moving base (1), and the sliding unit (6) is connected to the sliding block (3).

2. The multifunctional trolley for tunnel arch installation according to claim 1 is characterized in that: The sliding unit (6) comprises A driving block (61), the driving block (61) being movably connected to the movable base (1), and the driving block (61) moving along the axial direction of the rotating ring (2); an arc-shaped disk (62), the arc-shaped disk (62) being rotatably connected to the driving block (61), the arc-shaped disk (62) having a plurality of force-applying protrusions (63), a gap for the sliding block (3) to pass through being left between two adjacent force-applying protrusions (63), and the arc-shaped disk (62) being able to form an overlapping area along the axial direction of the rotating ring (2) when the arc-shaped disk (62) is rotated; A sliding mechanism (64) for driving the driving block (61) to slide, wherein the sliding mechanism (64) is connected to the movable base (1), and the sliding mechanism (64) is connected to the driving block (61); A reset mechanism (65) is used for driving the sliding block (3) to reset to the sliding track (4) in the locking area (21); the reset mechanism (65) is connected to the movable base (1), and the reset mechanism (65) is connected to the sliding block (3).

3. The multifunctional trolley for tunnel arch installation according to claim 2, characterized in that: The sliding mechanism (64) comprises A pulling cable (641), wherein the pulling cable (641) is connected to the driving block (61); two winding rollers (642), the winding rollers (642) being rotatably connected to the movable base (1), the driving block (61) being located between the two winding rollers (642), and one end of the pulling rope (641) being connected to the winding rollers (642); Two driving motors (643), the driving motors (643) are connected to the moving base (1), and the output shafts of the driving motors (643) are connected to the winding roller (642).

4. The multifunctional trolley for tunnel arch installation according to claim 2, characterized in that: The movable base (1) is provided with a guide rib (7), the driving block (61) is provided with an insertion groove for the guide rib (7) to extend into, and the driving block (61) is rotatably connected to a plurality of rolling columns (611), and the rolling columns (611) are rollingly connected to the movable base (1) and the guide rib (7).

5. The multifunctional trolley for tunnel arch installation according to claim 2, characterized in that: The reset mechanism (65) comprises A reset hydraulic cylinder (651), the reset hydraulic cylinder (651) is connected to the movable base (1), and the axial direction of the piston rod of the reset hydraulic cylinder (651) is consistent with the axial direction of the rotating ring (2); A mounting frame (652) is connected to the piston rod of the reset hydraulic cylinder (651), and a plurality of ejection rods (653) are connected to the mounting frame (652), and the ejection rods (653) can extend into the locking area (21) and abut against the sliding block (3).

6. The multifunctional trolley for tunnel arch installation according to claim 2, characterized in that: The driving block (61) is connected to two supporting bodies (8), which are respectively located on both sides of the arc-shaped disk (62), and a plurality of balls for contacting the arc-shaped disk (62) are rotatably embedded on one side of the supporting body (8) close to the arc-shaped disk (62).

7. The multifunctional trolley for tunnel arch installation according to claim 2, characterized in that: The fixing unit (5) comprises A Y-shaped frame (51) having two branch portions, the Y-shaped frame (51) being slidably connected to the sliding block (3), and a clamping claw (52) for clamping a single arch frame being connected to the branch portions of the Y-shaped frame (51); A telescopic cylinder (53), the telescopic cylinder (53) is connected to the sliding block (3), and the piston rod of the telescopic cylinder (53) is connected to the Y-shaped frame (51), and is used to drive the Y-shaped frame (51) to slide along the radial direction of the rotating ring (2).

8. The multifunctional trolley for tunnel arch installation according to claim 7, characterized in that: The force-applying protrusion (63) is slidably connected to the arc-shaped disk (62), and the force-applying protrusion (63) slides along the radial direction of the arc-shaped disk (62).

9. A tunnel construction process based on a multifunctional trolley for tunnel arch installation, characterized in that: The method is implemented by using the multifunctional trolley for tunnel arch installation as claimed in any one of claims 1 to 8, comprising: S1: Tunnel excavation, using a shield machine to excavate the tunnel to obtain the excavation area; S2: Construction preparation, drive the trolley to the excavation area, then fix the trolley and start assembling the single arch frame on the ground; S3: Arch lifting: the current batch of sliding blocks (3) are moved to the locking area (21) through the sliding unit (6), and then the rotating ring (2) is driven to fix the single arch through the fixing unit (5), and then the single arch is lifted by continuing to rotate; S4: Arch frame installation, the current batch of sliding blocks (3) are moved along the sliding track (4) to the excavation area by the sliding unit (6) again, and then the arch frame is fixed on the inner wall of the tunnel, and then the drilling and grouting operation is carried out. At the same time, the sliding unit (6) drives the rotating batch of sliding blocks (3) in an idle state to move to the locking area (21), and then drives the rotating ring (2) and fixes the single arch frame by the fixing unit (5), and then continues to rotate to lift the single arch frame for standby use; S5: The trolley moves forward, and when the tunnel arch construction at the current construction position is completed, the trolley moves to the next construction position along the tunneling direction of the shield machine, and repeats step S4 until the tunnel construction is completed.

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