Shield tunnel assembly type single-side groove formwork trolley and construction method

Abstract

The invention provides a shield tunnel assembly type single-side groove formwork trolley and a construction method. The problems that in the prior art, track laying efficiency is low, transferring is difficult, space is small, concrete cannot be evenly mixed, and aggregate is accumulated are solved. Comprising a portal frame device, a longitudinal and transverse moving device, two groups of suspended formwork cantilever devices and four concrete transfer devices, the two groups of suspended formwork cantilever devices are arranged on one side of the portal frame device, and each group of suspended formwork cantilever device comprises two cantilever mechanisms and a module mechanism; each concrete transfer device comprises a concrete receiving mechanism arranged on the sliding beam, a stirring tank fixedly connected to the module mechanism, at least two groups of stirring mechanisms, a different-direction rotator and a stirring power piece, the concrete receiving mechanism communicates with a feeding port of the stirring tank, and a discharging port of the stirring tank communicates with the module mechanism; the stirring mechanisms are connected through a counter-rotating device and are driven by a stirring power piece to coaxially rotate in different directions. The trolley is high in construction efficiency, convenient to mount, dismount and transfer and capable of uniformly mixing concrete.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel construction, and particularly relates to a shield tunnel assembled single-side groove formwork trolley and a construction method thereof. Background Art

[0002] As the core carrier of the tunnel drainage system, cable layout and safety evacuation passage, the tunnel groove is an indispensable key auxiliary structure in tunnel engineering. Its construction quality not only directly affects the overall structural safety and service life of the tunnel, but also relates to the convenience of later operation and maintenance. With the extension of China's transportation infrastructure construction to areas with complex geological conditions, tunnel projects show a development trend of large span, long distance and deep burial, which puts forward higher requirements for groove construction technology.

[0003] In traditional mountain tunnel groove construction, small steel molds are often combined manually, and after positioning, concrete is poured. Under this construction method, there are many construction personnel, many construction processes, long time consumption, poor template combination, and easy formwork running phenomenon.

[0004] In order to adapt to the trend of mechanized construction, groove formwork trolleys have been gradually popularized and applied in recent years. However, the existing technology still has significant limitations: 1) Using an integral gantry structure, the size is fixed and difficult to transport, and it occupies a relatively large space. In tunnel construction with a large span of the construction surfaces on both sides, the investment cost of the formwork trolley is high and the adaptability is not strong; 2) Most groove formwork trolleys run on electric wheel rails, and the rails are laid manually by workers. The labor intensity of workers is high, and the laying accuracy of manual laying is insufficient, which is not conducive to construction. Moreover, the track-type walking and construction machinery and vehicles often have cross-operation processes, which often cause spatial conflicts and then affect the construction efficiency; 3) In the construction process of the groove formwork trolley, precast concrete is usually used. There is a certain distance between the construction site and the precast concrete mixing column station. Due to the characteristics of concrete itself, road conditions and construction conditions, the precast concrete transported by tank trucks will have varying degrees of slump loss, segregation and reduction of mechanical properties before reaching the construction site for use. Most construction parties still use substandard concrete in the project in order to save costs, which not only reduces the project quality and durability, but also increases the later maintenance cost. Moreover, during the pouring process, a vibrating rod is usually needed to remix the concrete in the mold. However, due to the narrow cross-section area of the lining mold in tunnel engineering, the concrete cannot be evenly mixed, and there is a phenomenon of aggregate accumulation. Summary of the Invention

[0005] In view of the above-mentioned disadvantages of the prior art, the purpose of the present invention is to provide a shield tunnel prefabricated single-sided trench formwork trolley and a construction method thereof, which are used to solve the problems of low track-laying efficiency, difficult transfer, and small space where concrete cannot be evenly mixed and aggregate accumulation in the prior art.

[0006] To achieve the above and other related purposes, the present invention provides a shield tunnel prefabricated single-sided trench formwork trolley, including: A gantry device, the gantry device includes two lower longitudinal beams symmetrically arranged left and right, a telescopic vertical support mechanism and a support mechanism. Four telescopic vertical support mechanisms are detachably connected at intervals vertically on each lower longitudinal beam, and the support mechanism is detachably connected correspondingly between the telescopic vertical support mechanisms on the left and right sides; A longitudinal and transverse moving device, which is used to control the transverse and longitudinal movement of the gantry device; Two groups of suspended formwork cantilever devices, the two groups of suspended formwork cantilever devices are arranged on one side of the gantry device. Each group of suspended formwork cantilever devices includes two cantilever mechanisms and a module mechanism arranged below the two cantilever mechanisms. Each cantilever mechanism includes a cantilever sleeve beam with one end arranged on the telescopic vertical support mechanism, a sliding beam slidably matched with the other end of the cantilever sleeve beam, a horizontal telescopic power component for controlling the telescopic of the sliding beam, a vertical telescopic power component for adjusting the vertical height of the module mechanism, and a stay cable assembly for providing tension for the sliding beam; Four concrete transfer devices, each concrete transfer device includes a concrete receiving mechanism arranged on the sliding beam, a mixing tank fixed on the module mechanism, at least two groups of mixing mechanisms, a reverse rotator, and a mixing power component for driving at least two groups of mixing mechanisms to rotate coaxially. The concrete receiving mechanism is communicated with the feeding port of the mixing tank, the discharging port of the mixing tank is communicated with the module mechanism, the mixing mechanisms are connected by the reverse rotator and are driven by the mixing power component to rotate coaxially in opposite directions; Any one of the mixing mechanisms includes a mixing shaft and mixing blades, and each mixing shaft has a plurality of mixing blades axially and circumferentially.

[0007] Optionally, the reverse rotator includes a cylindrical housing, two rotating discs, a permanent magnet with N pole facing outwards and a permanent magnet with S pole facing outwards. The two rotating discs are coaxially arranged and are both rotatably installed inside the cylindrical housing. The two rotating discs are coaxially fixedly connected to the two mixing shafts respectively. A plurality of permanent magnets with N pole facing outwards and a plurality of permanent magnets with S pole facing outwards are arranged at intervals on the rotating discs, and the volume and area of the permanent magnets with N pole facing outwards are larger than the volume and area of the permanent magnets with S pole facing outwards. The permanent magnets with N pole facing outwards and the permanent magnets with S pole facing outwards on the two rotating discs are arranged with like poles repelling each other.

[0008] Optionally, the rotating disk is equally divided into four regions. Inside each region of the rotating disk, a permanent magnet with the N pole facing outward and a permanent magnet with the S pole facing outward are inlaid. Moreover, the volume and area of the permanent magnet with the N pole facing outward are larger than those of the permanent magnet with the S pole facing outward. The permanent magnet with the N pole facing outward accounts for two-thirds of each region of the rotating disk, and the permanent magnet with the S pole facing outward accounts for one-third of each region of the rotating disk. The permanent magnets with the N pole facing outward and the permanent magnets with the S pole facing outward on the two rotating disks are arranged with like poles repelling each other.

[0009] Optionally, the support mechanism includes a support cylinder, two support rods slidably arranged at both ends of the support cylinder, two side support assemblies respectively located on both sides of the support cylinder, a cross support assembly with both ends detachably connected to the corresponding telescopic vertical support mechanisms on the left and right sides, and two first connectors. The telescopic rod is provided with multiple groups of first connection holes at equal intervals along its axial direction. Both ends of the support cylinder have a group of first connection holes. The first connector is inserted into the first connection hole to connect the support cylinder and the support rod. The side support assembly, the cross support assembly, the diagonal tension assembly, and the telescopic vertical support mechanism have the same structure. The side support assembly includes a support column cylinder, a support rod slidably matched with the support column cylinder, and a second connector. The support rod is provided with multiple groups of second connection holes at equal intervals along its axis. One end of the support column cylinder has a group of second connection holes. The support column cylinder and the support rod are connected by the second connector. The support column cylinder and the support rod of the side support assembly are respectively detachably connected to the support column cylinder and the support rod of the telescopic vertical support mechanism. The support column cylinder and the support rod of the cross support assembly are respectively detachably connected to the support column cylinders of the telescopic vertical support mechanisms on the left and right sides. The support column cylinder of the telescopic vertical support mechanism is perpendicular to and detachably connected to the lower longitudinal beam, and the support rod of the telescopic vertical support mechanism is perpendicular to and detachably connected to the support rod. The support column cylinder and the support rod of the diagonal tension assembly are respectively detachably connected to the support rod of the telescopic vertical support mechanism and the end of the sliding beam away from the cantilever sleeve beam.

[0010] Optionally, the module mechanism includes a template cross beam, side templates, a lifting power component for controlling the lifting of the side templates, an adjusting power component for adjusting the position of the side templates, a first template assembly, and a second template assembly. The telescopic end of the vertical telescopic power component is fixedly connected to the template cross beam. The first template assembly and the second template assembly are located on both sides of the template cross beam. The mixing tank penetrates and is fixedly connected to the template cross beam. The first template assembly and the second template assembly have the same structure. The first template component includes a connecting arm fixedly connected below the template cross beam, a protruding arm fixedly connected to one end of the template cross beam, a trapezoidal steel block fixedly connected below the connecting arm, a steel formwork, and a diagonal tension power member for pulling the steel formwork obliquely relative to the trapezoidal steel block. The steel formwork is welded by three steel plates, and the steel formwork and the trapezoidal steel block form a rectangular shape.

[0011] Optionally, the concrete receiving mechanism includes a first conveying pipe, a second conveying pipe, and a funnel. The first conveying pipe penetrates and is fixedly connected to the sliding beam, the funnel is coaxially and fixedly connected to the top of the first conveying pipe, the first conveying pipe is slidably matched with the second conveying pipe, the outer diameter of the first conveying pipe is smaller than the outer diameter of the second conveying pipe, and the second conveying pipe is communicated with the feeding port of the mixing tank.

[0012] Optionally, the transverse and longitudinal moving device includes a transverse moving mechanism, a longitudinal moving mechanism, a jacking driving member, and a connecting block. There are four jacking driving members and four connecting blocks. The four jacking driving members are arranged around the gantry device. The fixed end and the telescopic end of each jacking driving member are respectively fixedly connected to the telescopic vertical support mechanism and the connecting block; There are two transverse moving mechanisms, which are respectively arranged between the two connecting blocks at the front and rear ends of the gantry device. There are two longitudinal moving mechanisms, which are respectively arranged below the two lower longitudinal beams.

[0013] Optionally, the transverse moving mechanism includes two transverse moving bases, a transverse moving telescopic driving member, a transverse moving lead screw, a first C-shaped guide rail, a second C-shaped guide rail, and a third connecting member. One end of the first C-shaped guide rail and the second C-shaped guide rail are respectively detachably connected to the two connecting blocks. The other end of the first C-shaped guide rail has multiple groups of third connecting holes along its length direction, and the other end of the second C-shaped guide rail has a group of third connecting holes. The first C-shaped guide rail and the second C-shaped guide rail are connected by the third connecting member. The two transverse moving bases are respectively fixedly connected to both ends of the transverse moving lead screw, and the two transverse moving bases are respectively slidably matched with the first C-shaped guide rail and the second C-shaped guide rail. The openings of the first C-shaped guide rail and the second C-shaped guide rail both face downwards. The transverse moving telescopic driving member is used to drive the transverse moving base to move horizontally; The longitudinal moving mechanism includes two longitudinal moving bases, a longitudinal moving telescopic driving member, and a lower connecting rod. Both ends of the lower connecting rod are respectively fixedly connected to the two longitudinal moving bases. A slideway for slidably matching with the longitudinal moving base is provided below the lower longitudinal beam. The fixed end and the telescopic end of the longitudinal moving telescopic driving member are respectively connected to the middle position of the slideway and any one of the longitudinal moving bases.

[0014] Optionally, it further includes a side-changing device for moving the two groups of the suspended formwork cantilever devices in clockwise and counterclockwise directions respectively to exchange them on the left and right sides of the gantry device. The side-changing device includes a first steel rail, a second steel rail, a transmission chain, and a conversion power assembly for driving the transmission chain to rotate. The first steel rail and the second steel rail are respectively connected to the telescopic section and the fixed section of the telescopic vertical support mechanism by bolts. The shapes of the first steel rail and the second steel rail are both open-round-corner rectangles. The transmission chains are symmetrically arranged inside the first steel rail and the second steel rail in the front and rear directions. The stay cable assembly and the cantilever sleeve beam are respectively connected to the transmission chains inside the first steel rail and the second steel rail through mounting plates.

[0015] A construction method for a shield tunnel prefabricated single-sided trench formwork trolley uses the shield tunnel prefabricated single-sided trench formwork trolley as described above, and includes the following steps: Applying release agent: Before concrete pouring, evenly apply release agent on the module mechanism. Secondary mixing: Concrete enters the mixing tank from the concrete receiving mechanism. The mixing power member drives the mixing mechanism to rotate. The opposite-rotation device makes the two mixing shafts of the two mixing mechanisms rotate in opposite directions to drive the mixing blades to rotate, and perform secondary mixing and stirring on the concrete. Layered pouring: After the concrete is secondary mixed and stirred, it enters the module mechanism through the discharge port of the mixing tank for layered pouring. Demoulding treatment: After pouring is completed and the concrete reaches the demoulding strength, perform demoulding treatment. Folding-back construction: Control the lateral and longitudinal movement of the gantry device through the vertical and horizontal movement device. The side-changing device exchanges the two groups of the suspended formwork cantilever devices to the tunnel construction side of the gantry device, so that the gantry device forms a folding-back type moving pouring construction path in the tunnel until the trench construction on both sides of the tunnel is completed.

[0016] As described above, the shield tunnel prefabricated single-sided trench formwork trolley and the construction method of the present invention have at least the following beneficial effects: The lower longitudinal beam is detachably connected to the telescopic vertical support mechanism by bolts, and the support mechanism also adopts a corresponding detachable method. The assembled structure is more convenient for installation and disassembly, thus facilitating transportation, assembly, and adaptation to different tunnel sizes. The longitudinal and transverse movement device is used to control the lateral and longitudinal movement of the gantry device. The compound lateral and longitudinal movement ability enables quick adjustment of the gantry position to adapt to the construction progress and high automation, and can effectively avoid obstacles during construction, thus solving the problems of manual track laying, high labor intensity, low efficiency, and large occupied space. The stirring power component drives the stirring shaft to rotate, and the reverse rotator drives another stirring shaft to rotate, realizing the reverse rotation of multiple groups of stirring shafts, and then driving the stirring blades to rotate, fully stirring and mixing the concrete entering from the concrete receiving mechanism, so as to perform secondary stirring of the precast concrete at the construction site, break up the cement clumps in the concrete, make the concrete microscopically homogeneous, improve the adhesion between cement and aggregates, make up for the slump loss, segregation, etc. caused by long-distance transportation, improve the concrete performance to meet the construction requirements, and avoid waste of resources. It makes the concrete performance in the same batch or the same tank truck more uniform, improves the overall quality of the project and reduces later maintenance. And the secondary uniform stirring before pouring effectively solves the problem that the concrete cannot be evenly mixed by using a vibrating rod in a narrow space and there is aggregate accumulation. The stirring blades are arranged at intervals along the axial and circumferential directions of the stirring shaft, further improving the mixing effect, achieving a more uniform and sufficient stirring effect on the concrete material, and can also stir different viscosity concretes to improve the stirring uniformity. Finally, it is controlled to be discharged through the extraction pump and the discharge solenoid valve at the discharge port of the mixing tank. Brief Description of the Drawings

[0017] Figure 1 Showing the structural schematic diagram of the present invention; Figure 2 Showing the structural schematic diagram of another perspective of the present invention; Figure 3 Showing the structural schematic diagram of the reverse rotator of the present invention; Figure 4 Showing the structural schematic diagram of the cylindrical shell of the present invention; Figure 5 Showing the structural schematic diagram of the rotating disk of the present invention; Figure 6 Showing the structural schematic diagram of the side support assembly of the present invention; Figure 7 Showing the structural schematic diagram of the module mechanism of the present invention; Figure 8 Showing the structural schematic diagram of the cooperation between the first rail and the drive chain of the present invention; Figure 9 Showing the construction schematic diagram during the application of the present invention.

[0018] Description of Component Labels Gantry device 1, lower longitudinal beam 11, telescopic vertical strut mechanism 12, support mechanism 13, support cylinder 131, support rod 132, side support assembly 133, pillar cylinder 1331, support rod 1332, second connecting piece 1333, second connecting hole 1334, cross support assembly 134; Vertical and horizontal movement device 2, horizontal movement mechanism 21, horizontal movement base 211, horizontal movement telescopic drive member 212, horizontal movement lead screw 213, first C-shaped guide rail 214, second C-shaped guide rail 215, vertical movement mechanism 22, vertical movement base 221, vertical movement telescopic drive member 222, lower connecting rod 223, lifting drive member 23, connecting block 24; Formwork hanging cantilever device 3, cantilever mechanism 31, cantilever sleeve beam 311, sliding beam 312, horizontal telescopic power member 313, vertical telescopic power member 314, stay cable assembly 315, module mechanism 32, formwork cross beam 321, side formwork 322, lifting power member 323, adjusting power member 324, first formwork assembly 325, connecting arm 3251, extending arm 3252, trapezoidal steel block 3253, steel formwork 3254, stay cable power member 3255, small vibrator 3256, attached vibrator 3257, power source 3258, hollow space 3259, second formwork assembly 326; Concrete transfer device 4, concrete receiving mechanism 41, first conveying pipe 411, second conveying pipe 412, funnel 413, concrete receiving bucket 414, conveying chute 415, strong drainage part 416, vibrator 4161, screw auger 4162, strong drainage drive unit 4163, mixing tank 42, mixing mechanism 43, mixing shaft 431, mixing blades 432, counter-rotating device 44, cylindrical housing 441, rotating disk 442, N-pole outward permanent magnet 443, S-pole outward permanent magnet 444,, mixing power member 45; Side-changing device 5, first rail 51, second rail 52, drive chain 53, conversion power assembly 54. Specific Embodiments

[0019] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0020] Please refer to Figures 1 to 9It should be noted that the structures, ratios, sizes, etc. shown in the attached drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they do not have substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of clear narration and are not used to limit the scope of implementation of the present invention. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope within which the present invention can be implemented.

[0021] The following various embodiments are only for illustration. Combinations can be made between the various embodiments, and it is not limited to the content shown in the following single embodiment.

[0022] In this embodiment, please refer to Figures 1 to 9 , the present invention provides a shield tunnel prefabricated single-sided groove formwork trolley, including: A gantry device 1, a vertical and horizontal moving device 2, two groups of suspended formwork cantilever devices 3, and four concrete transfer devices 4. The gantry device 1 includes two lower longitudinal beams 11 symmetrically arranged left and right, a telescopic vertical support mechanism 12, and a support mechanism 13. Four of the telescopic vertical support mechanisms 12 are detachably connected to each of the lower longitudinal beams 11 at vertical intervals. By multi-point support to disperse the load, the overall stability is improved. Among them, the vertical interval detachable connection can be through bolt connection. The tops of the telescopic vertical support mechanisms 12 on the same side are bolt-connected through a fastening beam, and the telescopic vertical support mechanisms 12 on the left and right sides are detachably connected to each other through the support mechanism 13 correspondingly; among them, the two ends in the tunnel width direction are defined as the left and right sides; through the detachable connection of the lower longitudinal beam 11 and the telescopic vertical support mechanism 12 by bolts, the support mechanism 13 also adopts a corresponding detachable method, and the prefabricated structure is more convenient for installation and disassembly, thus facilitating transportation, assembly, and adapting to different tunnel sizes; The vertical and horizontal moving device 2 is used to control the horizontal and vertical movement of the gantry device 1. The horizontal and vertical movement capabilities enable the rapid adjustment of the gantry position to adapt to the construction progress, with a high degree of automation, and solve the problems of manual laying of tracks, high labor intensity, and low efficiency; Two groups of the formwork hanging cantilever devices 3 are arranged on one side of the gantry device 1. Each group of the formwork hanging cantilever devices 3 includes two cantilever mechanisms 31 and a module mechanism 32 arranged below the two cantilever mechanisms 31. Each cantilever mechanism 31 includes a cantilever sleeve beam 311 with one end arranged on the telescopic vertical support mechanism 12, a sliding beam 312 slidably matched with the other end of the cantilever sleeve beam 311, a horizontal telescopic power member 313 for controlling the telescopic of the sliding beam 312, a vertical telescopic power member 314 for adjusting the vertical height of the module mechanism 32, and a stay cable assembly 315 for providing a tensile force to the sliding beam 312. The horizontal telescopic power member 313 and the vertical telescopic power member 314 can be hydraulic cylinders. The fixed end and the telescopic end of the horizontal telescopic power member 313 are respectively connected to the cantilever sleeve beam 311 and the sliding beam 312. The horizontal telescopic power member 313 drives the sliding beam 312 to telescopic, and cooperates with the stay cable assembly 315 to provide a tensile force, which not only expands the operation range but also ensures the cantilever stiffness. Each concrete transfer device 4 includes a concrete receiving mechanism 41 arranged on the sliding beam 312, a mixing tank 42 fixed to the module mechanism 32, at least two groups of mixing mechanisms 43, a reverse rotator 44, and a mixing power member 45 for driving at least two groups of the mixing mechanisms 43 to rotate coaxially. The mixing power member 45 is one of an electric motor, a rotary cylinder or a hydraulic motor. The concrete receiving mechanism 41 is communicated with the feeding port of the mixing tank 42. The discharging port of the mixing tank 42 is communicated with the module mechanism 32. The discharging port of the mixing tank 42 is provided with a pumping pump and a discharging electromagnetic valve. The mixing mechanisms 43 are connected by the reverse rotator 44 and are driven by the mixing power member 45 to rotate coaxially in opposite directions. The mixing tank 42 can be in the shape of an inverted bottle, with a rectangular cross-section in the upper part and a funnel 413 shape in the lower part. Any one of the mixing mechanisms 43 includes a mixing shaft 431 and mixing blades 432. Each mixing shaft 431 has a plurality of mixing blades 432 in the axial and circumferential directions. The mixing blades 432 can be spiral or inclined blades. The angle between the inclined blades and the mixing shaft 431 can be between 45° and 60°, preferably 52.5°.

[0023] The lower longitudinal beam 11 is detachably connected to the telescopic vertical support mechanism 12 by bolts, and the support mechanism 13 also adopts a corresponding detachable method. The assembled structure is more convenient for installation and disassembly, thus facilitating transportation, assembly, and adaptation to different tunnel sizes. The vertical and horizontal movement device 2 is used to control the horizontal and vertical movement of the gantry device 1. The horizontal and vertical composite movement ability enables rapid adjustment of the gantry position to adapt to the construction progress and high automation, and can effectively avoid obstacles during construction, thus solving the problems of manual track laying, high labor intensity, low efficiency, and large space occupation. The stirring power member 45 drives the stirring shaft 431 to rotate, and the opposite-direction rotator 44 drives another stirring shaft 431 to rotate, realizing the opposite-direction rotation of multiple groups of stirring shafts 431, and then driving the stirring blades 432 to rotate, fully stirring and mixing the concrete entering from the concrete receiving mechanism 41. Secondary stirring of the precast concrete is carried out at the construction site, breaking the cement clumps in the concrete, making the concrete microscopically homogeneous, improving the adhesion between cement and aggregates, making up for the slump loss, segregation, etc. caused by long-distance transportation, improving the concrete performance to meet the construction requirements, and avoiding resource waste. The concrete performance in the same batch or the same tank truck is made more uniform, improving the overall quality of the project and reducing later maintenance. And secondary uniform stirring before pouring effectively solves the problem that the concrete cannot be evenly mixed by using a vibrating rod in a narrow space and there is aggregate accumulation. The stirring blades 432 are arranged at intervals along the axial and circumferential directions of the stirring shaft 431, further improving the mixing effect, realizing more uniform and sufficient stirring of the concrete material, and can also stir different-viscosity concretes, improving the stirring uniformity. Finally, it is controlled to be discharged through the extraction pump and the discharge solenoid valve at the discharge port of the mixing tank 42.

[0024] In this embodiment, please refer to Figure 1 、 Figures 3 to 5, the counter-rotator 44 includes a cylindrical housing 441, two rotating disks 442, a permanent magnet with N pole facing outwards 443 and a permanent magnet with S pole facing outwards 444. The two rotating disks 442 are coaxially arranged and rotatably installed inside the cylindrical housing 441. The two rotating disks 442 are respectively coaxially and fixedly connected to the two stirring shafts 431. A plurality of permanent magnets with N pole facing outwards 443 and a plurality of permanent magnets with S pole facing outwards 444 are arranged at intervals on the rotating disk 442, and the volume and area of the permanent magnet with N pole facing outwards 443 are larger than the volume and area of the permanent magnet with S pole facing outwards 444. The permanent magnets with N pole facing outwards 443 and the permanent magnets with S pole facing outwards 444 on the two rotating disks 442 are arranged with like poles repelling each other. By arranging the permanent magnets with N pole facing outwards 443 and the permanent magnets with S pole facing outwards 444 on the two rotating disks 442 in a layout of like poles repelling each other, and respectively coaxially and fixedly connecting them to the stirring shafts 431, the structure is compact and suitable for narrow spaces. By using the pushing and pulling action of the repulsion and attraction between magnetic poles to drive the two rotating disks 442 to rotate in opposite directions, the coaxially arranged stirring shafts 431 rotate in opposite directions, realizing contactless zero-wear transmission. Then, it drives the stirring blades 432 on the stirring shafts 431 to rotate in opposite directions to fully mix and stir the concrete, achieving the effect of more uniform and more sufficient stirring of the concrete material, and can realize the stirring of different viscous concretes. By making the volume and area of the permanent magnet with N pole facing outwards larger than those of the S pole, the main repulsive torque is provided, and increasing the effective magnetic pole area can enhance the magnetic field strength.

[0025] In this embodiment, please refer to Figures 3 to 5 , each of the rotating disks 442 is equally divided into four regions. Inside each region of the rotating disk 442, the permanent magnet with N pole facing outwards 443 and the permanent magnet with S pole facing outwards 444 are inlaid. The volume and area of the permanent magnet with N pole facing outwards 443 are larger than the volume and area of the permanent magnet with S pole facing outwards 444. The permanent magnet with N pole facing outwards 443 occupies two-thirds of each region of the rotating disk 442, and the permanent magnet with S pole facing outwards 444 occupies one-third of each region of the rotating disk 442. The permanent magnets with N pole facing outwards 443 and the permanent magnets with S pole facing outwards 444 on the two rotating disks 442 are arranged with like poles repelling each other. By making the permanent magnet with N pole facing outwards 443 occupy two-thirds of each region of the rotating disk 442, when like poles repel each other, the repulsive force between N poles dominates the transmission torque, effectively improving the driving efficiency, enhancing the driving stability, reducing the maintenance cost and prolonging the service life of the equipment.

[0026] In this embodiment, please refer to Figure 1 and Figure 6, the support mechanism 13 includes a support cylinder 131, two support rods 132 slidably disposed at both ends of the support cylinder 131, two side support assemblies 133 respectively located on both sides of the support cylinder 131, a cross support assembly 134 detachably connected to the telescopic vertical support mechanisms 12 corresponding to the left and right sides at both ends, and two first connectors. The telescopic rod is provided with multiple groups of first connection holes at equal intervals along its axial direction. Both ends of the support cylinder 131 have a group of first connection holes. The first connector is inserted into the first connection hole to connect the support cylinder 131 and the support rod 132; the first connector is a bolt. Between the support cylinder 131 and the support rod 132, the bolt is inserted into the first connection hole and connected with a nut. The support rod 132 slides in the support cylinder 131, and the support length is adjusted through multiple sets of hole positions of the first connection hole to adapt to the change in the distance between the left and right telescopic vertical support mechanisms 12; The side support assembly 133, the cross support assembly 134, the diagonal tension assembly 315 and the telescopic vertical support mechanism 12 have the same structure. The side support assembly 133 includes a support column cylinder 1331, a support rod 1332 slidably matched with the support column cylinder 1331, and a second connector 1333. The support rod 1332 is provided with multiple groups of second connection holes 1334 at equal intervals along its axis. One end of the support column cylinder 1331 has a group of second connection holes 1334. The support column cylinder 1331 and the support rod 1332 are connected by the second connector 1333; the second connector 1333 is a bolt. Between the support column cylinder 1331 and the support rod 1332, the bolt is inserted into the second connection hole 1334 and connected with a nut; The support column cylinder 1331 and the support rod 1332 of the side support assembly 133 are respectively detachably connected to the support column cylinder 1331 and the support rod 132 of the telescopic vertical support mechanism 12; the support column cylinder 1331 and the support rod 1332 of the side support assembly 133 are respectively rotatably connected to the support column cylinder 1331 and the support rod 132 of the telescopic vertical support mechanism 12 through detachable rotating pins; The support column cylinder 1331 and the support rod 1332 of the cross support assembly 134 are respectively detachably connected to the support column cylinder 1331 of the telescopic vertical support mechanisms 12 on the left and right sides; the support column cylinder 1331 and the support rod 1332 of the cross support assembly 134 are respectively rotatably connected to the support column cylinder 1331 of the telescopic vertical support mechanisms 12 on the left and right sides through detachable rotating pins; The support column cylinder 1331 of the telescopic vertical support mechanism 12 is perpendicular to and detachably connected to the lower longitudinal beam 11, and the support rod 1332 of the telescopic vertical support mechanism 12 is perpendicular to and detachably connected to the support rod 132; the support column cylinder 1331 and the support rod 1332 of the telescopic vertical support mechanism 12 are respectively perpendicular to the lower longitudinal beam 11 and the support rod 132 and detachably connected by bolts; The strut cylinder 1331 and the strut rod 1332 of the stay cable assembly 315 are detachably connected to the strut rod 1332 of the telescopic vertical strut mechanism 12 and one end of the sliding beam 312 away from the cantilever sleeve beam 311 respectively. The strut cylinder 1331 and the strut rod 1332 of the stay cable assembly 315 are rotatably connected to the strut rod 1332 of the telescopic vertical strut mechanism 12 and one end of the sliding beam 312 away from the cantilever sleeve beam 311 through detachable rotating pins; A triangular support system is formed by the support mechanism 13, the side support assembly 133 and the telescopic vertical strut mechanism 12. By using the geometric stability of the triangle, the anti-overturning ability and the horizontal load-bearing capacity of the gantry device 1 are improved. The stay cable assembly 315 offsets the moment at the cantilever end of the sliding beam 312 through the tensile force to ensure the accuracy of the suspended form cantilever device 3. The support cylinder 131 and the support rod 132 are fixed by inserting bolts into the first connection holes. The side support / cross support assembly 134 is connected to the telescopic vertical strut mechanism 12 through a rotating pin. The stay cable assembly 315 is connected to the sliding beam 312 and the strut rod 1332 through rotating pins. The assembled structure is more convenient for installation and disassembly, thus facilitating transportation, assembly and adaptation to different tunnel sizes. The size can be adjusted and can also be balanced and adapted according to the force on the gantry device 1 when the sliding beam 312 extends; the side support assembly 133, the cross support assembly 134, the stay cable assembly 315 and the telescopic vertical strut mechanism 12 have the same structure, reducing the types of parts, lowering the manufacturing and maintenance costs, and improving the fault tolerance of the equipment.

[0027] In this embodiment, please refer to Figure 1 and Figure 7 , the module mechanism 32 includes a formwork cross beam 321, side formworks 322, a lifting power member 323 for controlling the lifting of the side formworks 322, an adjusting power member 324 for adjusting the position of the side formworks 322, a first formwork assembly 325 and a second formwork assembly 326. The telescopic end of the vertical telescopic power member 314 is fixedly connected to the formwork cross beam 321. The first formwork assembly 325 and the second formwork assembly 326 are located on both sides of the formwork cross beam 321. The mixing tank 42 passes through and is fixedly connected to the formwork cross beam 321; the lifting power member 323 and the adjusting power member 324 include but are not limited to hydraulic cylinders; The first formwork assembly 325 and the second formwork assembly 326 have the same structure; The first template assembly 325 includes a connecting arm 3251 fixedly connected below the template cross beam 321, a protruding arm 3252 fixedly connected to one end of the template cross beam 321, a trapezoidal steel block 5253 fixedly connected below the connecting arm 3251, a steel formwork 3254, and a diagonal pulling power member 3255 for obliquely pulling the steel formwork 3254 relative to the trapezoidal steel block 5253. The diagonal pulling power member 3255 includes, but is not limited to, a hydraulic cylinder. The telescopic end of the diagonal pulling power member 3255 is fixedly connected to the steel formwork 3254. The steel formwork 3254 is formed by welding three steel plates. The steel formwork 3254 and the trapezoidal steel block 5253 form a rectangular shape, which is a communication trench or a cable trench. The length direction of the trapezoidal steel block 5253 is parallel to the length direction of the lower longitudinal beam 11. By driving the template cross beam 321 to lift and lower through the vertical telescopic power member 314, the vertical height of the entire module mechanism 32 can be quickly adjusted to adapt to different construction requirements. The template cross beam 321 evenly transfers the vertical load to the telescopic vertical support mechanisms 12 and the cantilever sleeve beams 311 on both sides, enhancing the stability of the device. The steel formwork 3254 welded by three steel plates and the trapezoidal steel block 5253 form a rectangular closed space. By the telescopic drive of the diagonal pulling power member 3255, the steel formwork 3254 moves obliquely relative to the trapezoidal steel block 5253, causing the spatial structure of the trench steel formwork 3254 to change and the lateral width to become shorter, making it easier to demold and greatly improving the construction efficiency.

[0028] The first template assembly 325 further includes a small vibrator 3256, an attached vibrator 3257, and a power source 3258 disposed below the protruding arm 3252 to drive the steel formwork 3254 to vibrate through the diagonal pulling power member 3255. The trapezoidal steel block 5253 has a hollow space 3259 on the side facing the discharge port of the mixing tank 42. The attached vibrator 3257 is disposed in the hollow space 3259. The small vibrator 3256 and the attached vibrator 3257 are both connected to the power source 3258 through transmission lines. By installing the attached vibrator 3257 in the hollow space 3259, the vibration energy of the attached vibrator 3257 can be directly transmitted to the interior of the concrete, ensuring that the concrete is fully filled, avoiding defects such as aggregate accumulation and honeycombing, and enhancing the structural strength. The small vibrator 3256 disposed below the protruding arm 3252 can drive the steel formwork 3254 to vibrate through the diagonal pulling power member 3255, directly acting on the surface layer of the concrete, causing the particles in the concrete to be mutually extruded and filled, thereby achieving the purpose of densification.

[0029] In this embodiment, please refer to Figure 1, the concrete receiving mechanism 41 includes a first conveying pipe 411, a second conveying pipe 412 and a funnel 413. The first conveying pipe 411 penetrates and is fixedly connected to the sliding beam 312. The funnel 413 is coaxially and fixedly connected to the top of the first conveying pipe 411. The first conveying pipe 411 is slidably matched with the second conveying pipe 412. The outer diameter of the first conveying pipe 411 is smaller than the outer diameter of the second conveying pipe 412. The second conveying pipe 412 is communicated with the feeding port of the mixing tank 42. Through the sliding fit of the first conveying pipe 411 and the second conveying pipe 412, the conveying height can be adaptively adjusted when the vertical telescopic power member 314 adjusts the vertical height of the module mechanism 32 to meet the construction requirements of the module mechanism 32. The funnel 413 is coaxially and fixedly connected to the first conveying pipe 411, with a compact structure and ensuring the maximization of concrete receiving efficiency, adapting to the narrow working environment of tunnel trench construction.

[0030] The concrete receiving mechanism 41 further includes a concrete receiving bucket 414, a conveying chute 415 provided on the sliding beam 312, and a forced discharge part 416 for forcibly discharging the concrete in the concrete receiving bucket 414. The two ends of the conveying chute 415 are respectively communicated with the discharge port of the concrete receiving bucket 414 and the funnel 413, and the end of the conveying chute 415 communicating with the discharge port of the concrete receiving bucket 414 is higher than the end communicating with the funnel 413. Gravity is used to guide the concrete to flow from the receiving bucket to the funnel 413 without additional power, saving energy consumption. At the same time, the inner wall of the chute is smooth and can be made of stainless steel, reducing concrete adhesion and facilitating cleaning. The forced discharge part 416 is a vibrator 4161 fixedly connected to the outside of the concrete receiving bucket 414 or a spiral auger 4162 provided in the concrete receiving bucket 414 and connected to the forced discharge driving unit 4163. The forced discharge driving unit 4163 can be a motor or a hydraulic motor.

[0031] The concrete receiving bucket 414 provided on the sliding beam 312 can store the concrete to maintain the continuity of pouring. It is conveyed from the discharge port of the concrete receiving bucket 414 to the funnel 413 through the conveying chute 415. Gravity is used to guide the concrete to flow from the receiving bucket to the funnel 413 without additional power, saving energy consumption. Through the setting of the forced discharge part 416, effective anti-blocking and efficient unloading are ensured.

[0032] In this embodiment, please refer to Figure 1 and Figure 2, the horizontal and vertical movement device 2 includes a horizontal movement mechanism 21, a vertical movement mechanism 22, a jacking drive member 23 and a connecting block 24. The jacking drive member 23 includes, but is not limited to, a hydraulic cylinder. There are four jacking drive members 23 and four connecting blocks 24. The four jacking drive members 23 are arranged around the gantry device 1. The fixed end and the telescopic end of each jacking drive member 23 are fixedly connected to the telescopic vertical support mechanism 12 and the connecting block 24 respectively; the fixed end and the telescopic end of the jacking drive member 23 are fixedly connected to the support cylinder 1331 of the telescopic vertical support mechanism 12 and the connecting block 24 respectively. There are two horizontal movement mechanisms 21, and the two horizontal movement mechanisms 21 are respectively arranged between the two connecting blocks 24 at the front and rear ends of the gantry device 1. There are two vertical movement mechanisms 22, and the two vertical movement mechanisms 22 are respectively arranged below the two lower longitudinal beams 11. The four jacking drive members 23 are distributed around the gantry device 1 to form a stable quadrilateral support structure, which can evenly bear the overall weight of the equipment and the operation load.

[0033] In this embodiment, please refer to Figure 1 and Figure 2 , the horizontal movement mechanism 21 includes two horizontal movement bases 211, a horizontal movement telescopic drive member 212, a horizontal movement lead screw 213, a first C-shaped guide rail 214, a second C-shaped guide rail 215, and a third connecting member. One end of the first C-shaped guide rail 214 and the second C-shaped guide rail 215 are detachably connected to the two connecting blocks 24 respectively. One end of the first C-shaped guide rail 214 and the second C-shaped guide rail 215 are connected to the two connecting blocks 24 by bolts. The other end of the first C-shaped guide rail 214 has multiple groups of third connection holes along its length direction, and the other end of the second C-shaped guide rail 215 has a group of third connection holes. The first C-shaped guide rail 214 and the second C-shaped guide rail 215 are connected by the third connecting member. The third connecting member is a bolt. The first C-shaped guide rail 214 and the second C-shaped guide rail 215 are connected by inserting bolts into the third connection holes and using nuts. The two horizontal movement bases 211 are respectively fixedly connected to both ends of the horizontal movement lead screw 213. The two horizontal movement bases 211 are respectively slidably matched with the first C-shaped guide rail 214 and the second C-shaped guide rail 215. The openings of the first C-shaped guide rail 214 and the second C-shaped guide rail 215 face downward. The horizontal movement telescopic drive member 212 is used to drive the horizontal movement base 211 to move horizontally. The horizontal movement telescopic drive member 212 includes, but is not limited to, a hydraulic cylinder. The fixed end and the telescopic end of the horizontal movement telescopic drive member 212 are connected to the middle position of the first C-shaped guide rail 214 and any one of the horizontal movement bases 211 respectively; The longitudinal movement mechanism 22 includes two longitudinal movement bases 221, a longitudinal movement telescopic driving member 222, and a lower connecting rod 223. Both ends of the lower connecting rod 223 are fixedly connected to the two longitudinal movement bases 221 respectively. Below the lower longitudinal beam 11, there is a slideway that slidably cooperates with the longitudinal movement bases 221. The fixed end and the telescopic end of the longitudinal movement telescopic driving member 222 are respectively connected to the middle position of the slideway and any one of the longitudinal movement bases 221. The longitudinal movement telescopic driving member 222 includes, but is not limited to, a hydraulic cylinder. Both the transverse movement base 211 and the longitudinal movement base 221 can be rectangular structures welded by steel plates.

[0034] When moving horizontally to the right, the longitudinal movement base 221 contacts the ground. The jacking driving member 23 is used to lift upward so that the transverse movement base 211 is in a suspended state. The transverse movement telescopic driving member 212 extends to drive the transverse movement base 211 to move horizontally to the right to the maximum extendable distance. Then, the jacking driving member 23 is used to lower so that the transverse movement base 211 contacts the ground, and continue to lower so that the longitudinal movement bases 221 on both left and right sides are in a suspended state. At this time, by contracting the transverse movement telescopic driving member 212, the transverse movement base 211 remains stationary, and the first C-shaped guide rail 214 and the second C-shaped guide rail 215 drive the gantry device 1 and the longitudinal movement mechanism 22 to move horizontally to the right by a certain distance. When moving to the maximum contractable distance of the transverse movement telescopic driving member 212, stop moving. Lower the longitudinal movement bases 221 in the suspended state. At this time, the entire trolley has returned to the state before moving horizontally to the right and has moved horizontally to the right by a certain distance. Repeating the above operations can achieve the trolley moving horizontally to the right.

[0035] When moving longitudinally forward, the longitudinal movement base 221 contacts the ground. The jacking driving member 23 lifts the transverse movement base 211 to a suspended state. The longitudinal movement telescopic driving member 222 is started to contract, and the longitudinal movement base 221 remains stationary. The lower longitudinal beam 11 is pulled longitudinally forward by the longitudinal movement telescopic driving member 222. At this time, the lower longitudinal beam 11, the gantry device 1, and the transverse movement mechanism 21 move forward as a whole. When the rear transverse movement mechanism 21 touches the rear longitudinal movement base 221, stop moving. Lower the transverse movement mechanism 21 in the suspended state. Use the jacking driving member 23 to raise the lower longitudinal beam 11 by a certain height. At this time, the longitudinal movement base 221 is also lifted by a certain height to a suspended state. The longitudinal movement telescopic driving member 222 stretches, and the longitudinal movement base 221 moves forward. When the front longitudinal movement base 221 touches the front transverse movement mechanism 21, the longitudinal movement base 221 stops moving. Lower the longitudinal movement bases 221 in the suspended state. At this time, the trolley has returned to the state before moving longitudinally forward and has moved longitudinally forward by a certain distance. Repeating the above operations can achieve the trolley moving longitudinally forward.

[0036] In this embodiment, please refer to Figure 1 and Figure 8, further comprising a side-changing device 5, the side-changing device 5 is used to exchange the two sets of the hanging mold cantilever devices 3 on the left and right sides of the gantry device 1 in clockwise and counterclockwise directions respectively; The side-changing device 5 includes a first steel rail 51, a second steel rail 52, a transmission chain 53, and a conversion power assembly 54 for driving the transmission chain 53 to rotate. The first steel rail 51 and the second steel rail 52 are respectively connected to the telescopic section and the fixed section of the telescopic vertical support mechanism 12 by bolts. The first steel rail 51 and the second rail 52 are respectively connected to the support rod 1332 and the support tube 1331 of the telescopic vertical support mechanism 12 by bolts to form an upper and lower two-layer track to ensure that the hanging mold cantilever device 3 remains horizontal during the side-changing process. The first steel rail 51 and the second steel rail 52 are both in the shape of an open rounded rectangle. The transmission chains 53 are symmetrically arranged in the front and rear of the first steel rail 51 and the second rail 52. The inclined-stayed assembly 315 and the cantilever sleeve beam 311 are respectively connected to the transmission chains 53 in the first steel rail 51 and the second steel rail 52 through mounting plates.

[0037] The conversion power assembly 54 includes a first rotating wheel, a second rotating wheel, and a conversion power member driving the first rotating wheel to rotate. The conversion power member includes but is not limited to a motor. The first rotating wheel is rotatably arranged in the left side of the first steel rail 51 or the second steel rail 52, and the second rotating wheel is rotatably arranged in the right side of the first steel rail 51 or the second steel rail 52. The first rotating wheel and the second rotating wheel are connected by a transmission chain 53; the transmission chain 53 includes a connecting plate and a connecting member. A plurality of connecting plates are hinged at the head and tail through the connecting member to form the transmission chain 53. The connecting member can be a circular connecting member to reduce friction and extend the service life.

[0038] When in use, the two mold hanging cantilever devices 3 are abutted at the end faces. When construction on one side is completed and moved to the other side, the conversion power assembly 54 in the front side of the first rail 51 and the second rail 52 simultaneously drives the transmission chain 53 to rotate, so that the front mold hanging cantilever device 3 is switched from one side to the other side, and / or the rotation power assembly on the rear side simultaneously drives the transmission chain 53 to rotate, so that the rear mold hanging cantilever device 3 is switched from one side to the other side, wherein the two mold hanging cantilever devices 3 rotate in opposite directions.

[0039] In this embodiment, please refer to Figures 1 to 9 A construction method of a shield tunnel assembled single-sided groove template trolley, using the shield tunnel assembled single-sided groove template trolley, comprises the following steps: Installation trolley: Place two lower longitudinal beams 11 in parallel on the left and right sides, connect the telescopic vertical support mechanism 12 to the lower longitudinal beam 11 by bolts, and the corresponding telescopic vertical support mechanisms 12 on the left and right are connected by the support mechanism 13; Install the longitudinal and transverse moving device 2 on the gantry device 1; Install the side-changing device 5 and the suspended formwork cantilever device 3 on the gantry device 1; Apply release agent: Before concrete pouring, evenly apply release agent on the module mechanism 32; Secondary mixing: Concrete enters the mixing tank 42 from the concrete receiving mechanism 41. The mixing power component 45 drives the mixing mechanism 43 to rotate. The reverse rotator 44 makes the two mixing shafts 431 of the two mixing mechanisms 43 rotate in opposite directions to drive the mixing blades 432 to rotate, so as to conduct secondary mixing and stirring of the concrete; Layered pouring: After the secondary mixing and stirring of the concrete is completed, it enters the module mechanism 32 through the discharge port of the mixing tank 42 for layered pouring; Demoulding treatment: After pouring is completed and the concrete reaches the demoulding strength, carry out demoulding treatment; Fold-back construction: Control the horizontal and vertical movement of the gantry device 1 through the longitudinal and transverse movement device 2. The side-changing device 5 exchanges the two groups of suspended formwork cantilever devices 3 to the tunnel construction side of the gantry device 1, so that the gantry device 1 forms a fold-back type mobile pouring construction path in the tunnel until the construction of the grooves on both sides of the tunnel is completed.

[0040] In summary, in the present invention, the lower longitudinal beam 11 and the telescopic vertical support mechanism 12 are detachably connected by bolts, and the support mechanism 13 also adopts a corresponding detachable manner. The assembled structure is more convenient for installation and disassembly, thus facilitating transportation, assembly and adaptation to different tunnel sizes; the longitudinal and transverse movement device 2 is used to control the transverse and longitudinal movement of the gantry device 1. The transverse and longitudinal composite movement ability enables rapid adjustment of the gantry position to adapt to the construction progress with high automation, and can effectively avoid obstacles during the construction process, thus solving the problems of manual track laying, high labor intensity, low efficiency and large occupied space; the stirring power member 45 drives the stirring shaft 431 to rotate, and the other stirring shaft 431 is driven to rotate by the reverse rotator 44, so as to realize the reverse rotation of multiple groups of stirring shafts 431, and then drive the stirring blades 432 to rotate, so as to fully stir and mix the concrete entering from the concrete receiving mechanism 41, so as to perform secondary stirring on the precast concrete at the construction site, break the cement clumps in the concrete, make the concrete reach micro-homogeneity, improve the adhesion between the cement and the aggregate, make up for the slump loss, segregation and other problems caused by long-distance transportation, improve the concrete performance to meet the construction requirements, and avoid waste of resources; make the concrete performance in the same batch or the same tank truck more uniform, improve the overall quality of the project and reduce the later maintenance; and the secondary uniform stirring before pouring effectively solves the problem that the concrete cannot be evenly mixed by using a vibrating rod in a narrow space and there is aggregate accumulation; the stirring blades 432 are arranged at intervals along the axial and circumferential directions of the stirring shaft 431, further improving the mixing effect, realizing a more uniform and sufficient stirring effect on the concrete material, and can also stir different viscous concretes to improve the stirring uniformity. Finally, it is controlled to be discharged through the extraction pump and the discharge electromagnetic valve at the discharge port of the mixing tank 42. Therefore, the present invention effectively overcomes various disadvantages in the prior art and has high industrial utilization value.

[0041] The above embodiments are only illustrative of the principles and effects of the present invention, and are not used to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A shield tunnel prefabricated single-sided groove formwork trolley, characterized in that Comprising: A gantry device, the gantry device includes two lower longitudinal beams symmetrically arranged left and right, a telescopic vertical support mechanism and a support mechanism. Four of the telescopic vertical support mechanisms are detachably connected at vertical intervals on each of the lower longitudinal beams, and the support mechanism is detachably connected correspondingly between the telescopic vertical support mechanisms on the left and right sides; A longitudinal and transverse movement device, the longitudinal and transverse movement device is used to control the horizontal and vertical movement of the gantry device; Two groups of formwork hanging cantilever devices, the two groups of formwork hanging cantilever devices are arranged on one side of the gantry device. Each group of formwork hanging cantilever devices includes two cantilever mechanisms and a module mechanism arranged below the two cantilever mechanisms. Each cantilever mechanism includes a cantilever sleeve beam with one end arranged on the telescopic vertical support mechanism, a sliding beam slidably matched with the other end of the cantilever sleeve beam, a horizontal telescopic power member for controlling the telescopic movement of the sliding beam, a vertical telescopic power member for adjusting the vertical height of the module mechanism, and a stay cable assembly for providing tension to the sliding beam; Four concrete transfer devices, each concrete transfer device includes a concrete receiving mechanism arranged on the sliding beam, a mixing tank fixed to the module mechanism, at least two groups of mixing mechanisms, a reverse rotator, and a mixing power member for driving at least two groups of the mixing mechanisms to rotate coaxially. The concrete receiving mechanism is communicated with the feeding port of the mixing tank, the discharging port of the mixing tank is communicated with the module mechanism, the mixing mechanisms are connected by the reverse rotator and are driven by the mixing power member to rotate coaxially in opposite directions; Any one of the mixing mechanisms includes a mixing shaft and mixing blades, and each mixing shaft has a plurality of mixing blades axially and circumferentially.

2. The segmental single-sided grooved formwork trolley for shield tunnel according to claim 1, characterized in that: The reverse rotator includes a cylindrical housing, two rotating disks, a permanent magnet with N pole facing outwards and a permanent magnet with S pole facing outwards. The two rotating disks are coaxially arranged and are both rotatably installed inside the cylindrical housing. The two rotating disks are coaxially and fixedly connected to the two mixing shafts respectively. A plurality of permanent magnets with N pole facing outwards and a plurality of permanent magnets with S pole facing outwards are arranged at intervals on the rotating disks, and the volume and area of the permanent magnets with N pole facing outwards are larger than the volume and area of the permanent magnets with S pole facing outwards. The permanent magnets with N pole facing outwards and the permanent magnets with S pole facing outwards on the two rotating disks are arranged with like poles repelling each other.

3. The segmental single-sided grooved formwork trolley for shield tunnel according to claim 2, wherein: The rotating disk is equally divided into four regions. The N pole facing outwards permanent magnet and the S pole facing outwards permanent magnet are inlaid inside each region of the rotating disk, and the volume and area of the N pole facing outwards permanent magnet are larger than the volume and area of the S pole facing outwards permanent magnet. The N pole facing outwards permanent magnet accounts for two-thirds of each region of the rotating disk, and the S pole facing outwards permanent magnet accounts for one-third of each region of the rotating disk. The N pole facing outwards permanent magnet and the S pole facing outwards permanent magnet on the two rotating disks are arranged with like poles repelling each other.

4. The segmental single-sided grooved formwork trolley for shield tunnel according to claim 1, characterized in that: The support mechanism includes a support cylinder, two support rods slidably disposed at both ends of the support cylinder, two side support assemblies respectively located on both sides of the support cylinder, a cross support assembly with both ends detachably connected to the telescopic vertical support mechanisms corresponding to the left and right sides respectively, and two first connecting members. The telescopic rod is provided with multiple groups of first connecting holes at equal intervals along its axial direction. Both ends of the support cylinder have a group of first connecting holes. The first connecting member is inserted into the first connecting hole to connect the support cylinder and the support rod; The side support assembly, the cross support assembly, the diagonal tension assembly and the telescopic vertical support mechanism have the same structure. The side support assembly includes a support column cylinder, a support rod slidably matched with the support column cylinder, and a second connecting member. The support rod is provided with multiple groups of second connecting holes at equal intervals along its axis. One end of the support column cylinder has a group of second connecting holes. The support column cylinder and the support rod are connected by the second connecting member; The support column cylinder and the support rod of the side support assembly are respectively detachably connected to the support column cylinder and the support rod of the telescopic vertical support mechanism; The support column cylinder and the support rod of the cross support assembly are respectively detachably connected to the support column cylinders of the telescopic vertical support mechanisms on the left and right sides; The support column cylinder of the telescopic vertical support mechanism is perpendicular to and detachably connected to the lower longitudinal beam, and the support rod of the telescopic vertical support mechanism is perpendicular to and detachably connected to the support rod; The support column cylinder and the support rod of the diagonal tension assembly are respectively detachably connected to the support rod of the telescopic vertical support mechanism and the end of the sliding beam away from the cantilever sleeve beam; 5. The segmental single-sided grooved formwork trolley for shield tunnel according to claim 1, wherein: The module mechanism includes a formwork cross beam, side formworks, a lifting power member for controlling the lifting of the side formworks, an adjusting power member for adjusting the position of the side formworks, a first formwork assembly and a second formwork assembly. The telescopic end of the vertical telescopic power member is fixedly connected to the formwork cross beam. The first formwork assembly and the second formwork assembly are located on both sides of the formwork cross beam. The mixing tank penetrates and is fixedly connected to the formwork cross beam; The first formwork assembly and the second formwork assembly have the same structure; The first formwork assembly includes a connecting arm fixedly connected below the formwork cross beam, a protruding arm fixedly connected to one end of the formwork cross beam, a trapezoidal steel block fixedly connected below the connecting arm, a steel formwork, and a diagonal tension power member for obliquely pulling the steel formwork relative to the trapezoidal steel block. The steel formwork is welded by three steel plates. The steel formwork and the trapezoidal steel block form a rectangular shape.

6. The segmental single-sided grooved formwork trolley for shield tunneling according to claim 1, wherein: The concrete receiving mechanism includes a first conveying pipe, a second conveying pipe and a funnel. The first conveying pipe penetrates and is fixedly connected to the sliding beam. The funnel is coaxially and fixedly connected to the top of the first conveying pipe. The first conveying pipe is slidably matched with the second conveying pipe. The outer diameter of the first conveying pipe is smaller than the outer diameter of the second conveying pipe. The second conveying pipe is communicated with the feeding port of the mixing tank.

7. The segmental single-sided grooved formwork trolley for shield tunneling according to claim 1, wherein: The horizontal and vertical moving device includes a horizontal moving mechanism, a vertical moving mechanism, a jacking driving member, and a connecting block. There are four of the jacking driving members and four of the connecting blocks. The four jacking driving members are arranged around the gantry device. The fixed end and the telescopic end of each jacking driving member are fixedly connected to the telescopic vertical support mechanism and the connecting block respectively; There are two of the horizontal moving mechanisms, which are respectively arranged between the two connecting blocks at the front and rear ends of the gantry device. There are two of the vertical moving mechanisms, which are respectively arranged below the two lower longitudinal beams.

8. The segmental single-sided grooved formwork trolley for shield tunnel according to claim 7, wherein: The horizontal moving mechanism includes two horizontal moving bases, a horizontal telescopic driving member, a horizontal lead screw, a first C-shaped guide rail, a second C-shaped guide rail, and a third connecting member. One end of the first C-shaped guide rail and the second C-shaped guide rail are respectively detachably connected to the two connecting blocks. The other end of the first C-shaped guide rail has multiple groups of third connecting holes along its length direction. The other end of the second C-shaped guide rail has a group of third connecting holes. The first C-shaped guide rail and the second C-shaped guide rail are connected by the third connecting member. The two horizontal moving bases are respectively fixed at both ends of the horizontal lead screw. The two horizontal moving bases are respectively in sliding cooperation with the first C-shaped guide rail and the second C-shaped guide rail. The openings of the first C-shaped guide rail and the second C-shaped guide rail both face downwards. The horizontal telescopic driving member is used to drive the horizontal moving base to move horizontally; The vertical moving mechanism includes two vertical moving bases, a vertical telescopic driving member, and a lower connecting rod. Both ends of the lower connecting rod are fixedly connected to the two vertical moving bases respectively. A slideway for sliding cooperation with the vertical moving base is provided below the lower longitudinal beam. The fixed end and the telescopic end of the vertical telescopic driving member are respectively connected to the middle position of the slideway and any one of the vertical moving bases.

9. The segmental single-sided groove formwork trolley for shield tunnel according to any one of claims 1-8, characterized in that: It further includes a side-changing device, which is used to exchange the two groups of suspended form cantilever devices on the left and right sides of the gantry device by moving them in clockwise and counterclockwise directions respectively; The side-changing device includes a first steel rail, a second steel rail, a transmission chain, and a conversion power assembly for driving the transmission chain to rotate. The first steel rail and the second steel rail are respectively connected to the telescopic section and the fixed section of the telescopic vertical support mechanism by bolts. The shapes of the first steel rail and the second steel rail are both open-round-corner rectangles. Transmission chains are symmetrically arranged inside the first steel rail and the second steel rail in the front and rear directions. The stay cable assembly and the cantilever sleeve beam are respectively connected to the transmission chains inside the first steel rail and the second steel rail through mounting plates.

10. A construction method for a prefabricated single-sided groove formwork trolley of a shield tunnel, characterized in that: Using the shield tunnel prefabricated single-side trench formwork trolley described in claim 9, it includes the following steps: Applying release agent: Before concrete pouring, evenly apply release agent on the module mechanism; Secondary mixing: Concrete enters the mixing tank from the concrete receiving mechanism. The mixing power member drives the mixing mechanism to rotate. The opposite-direction rotator makes the two mixing shafts of the two mixing mechanisms rotate in opposite directions to drive the mixing blades to rotate, and perform secondary mixing and stirring on the concrete; Layering pouring: After the concrete is secondary mixed and stirred, it enters the module mechanism through the discharge port of the mixing tank for layering pouring; Demoulding treatment: Demoulding treatment shall be carried out after the concrete is poured and reaches the demoulding strength. Folding-back construction: The gantry device is controlled to move horizontally and longitudinally by the vertical and horizontal moving device, and the two sets of suspended form cantilever devices are swapped to the tunnel construction side of the gantry device by the side-changing device, so that the gantry device forms a folding-back type moving pouring construction path in the tunnel until the groove construction on both sides of the tunnel is completed.

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