Construction technology of tunnel full-arc module length inverted arch trestle

Abstract

The application relates to a tunnel full-arc module long inverted arch trestle construction process and belongs to the field of tunnel construction, which comprises the following steps: S1: two rows of longitudinal rails are laid side by side on the two sides of the inverted arch, the longitudinal rails are parallel to a first direction, the two rows of longitudinal rails form an avoiding area in a second direction, and the avoiding area is located above the inverted arch; S2: a structure for vehicles and personnel walking is laid: a to-be-erected support unit is laid on the longitudinal rail, the to-be-erected support unit is fixed to the longitudinal rail to form an already-erected support unit, the to-be-erected support unit is sequentially laid on the longitudinal rail along a tunnel excavation direction; the support unit comprises a main support plate and a plurality of first auxiliary rollers, the first auxiliary rollers are located on one side of a bottom wall surface of the main support plate, the first auxiliary rollers are rotationally connected to the main support plate through first rotating shafts, and the first rotating shafts are parallel to the second direction. The application has the effect of facilitating the laying of the inverted arch trestle and improving the construction efficiency.

Description

Technical Field

[0001] The present application relates to the field of tunnel construction, and in particular to a construction process for a tunnel full-arc mold length inverted arch trestle. Background Art

[0002] With the acceleration of urbanization, the demand for underground space development is increasing. Tunnel engineering has become one of the important infrastructure construction projects. During the construction of the invert arch, it is necessary to build an invert arch trestle above the invert arch for personnel to step on and for vehicles to walk on the invert arch trestle, so that personnel can carry out construction on the side of the invert arch close to the heading face.

[0003] Currently, the commonly used solution for building tunnel inverted arch trestle is to use traditional wooden or steel temporary support structures. Wooden structures have poor stability and are prone to collapse accidents. Steel temporary support structures usually consist of large steel plates at the front and rear ends of the inverted arch. Cranes or trailers are usually used to cover the steel plates directly above the inverted arch.

[0004] Regarding the above-mentioned related technologies, it is difficult to move large steel plates and they may not fit into the tunnel space, so it is not convenient to position them in the designated position, which slows down construction efficiency. Therefore, how to facilitate the laying of the inverted arch trestle to improve construction efficiency has become an urgent problem to be solved. Summary of the Invention

[0005] In order to facilitate the laying of an inverted arch trestle and improve construction efficiency, the present application provides a tunnel full-arc mold length inverted arch trestle construction process.

[0006] The present application provides a tunnel full-arc mold length inverted arch trestle construction process using the following technical solutions:

[0007] A tunnel full-arc mold length inverted arch trestle construction process includes the following steps:

[0008] S1: Two rows of longitudinal tracks are laid side by side on both sides of the inverted arch. The longitudinal tracks are parallel to the first direction. The two rows of longitudinal tracks form an avoidance zone in the second direction. The avoidance zone is located above the inverted arch.

[0009] S2: Paving structures for vehicles and people to walk on:

[0010] Laying the support units to be placed on the longitudinal track, and fixing the support units to be placed to the longitudinal track to form support units in place;

[0011] Along the tunneling direction, the supporting units to be put in place are laid on the longitudinal track in sequence;

[0012] The supporting unit comprises:

[0013] a main support plate having a bottom wall surface and a top wall surface, wherein two ends of the main support plate are respectively overlapped with a row of longitudinal rails; and

[0014] A plurality of first auxiliary rollers are located on one side of the bottom wall of the main support plate, and the first auxiliary rollers are rotatably connected to the main support plate via a first rotating shaft, and the first rotating shaft is parallel to the second direction.

[0015] By adopting this technical solution, the main support plate is attached to a row of longitudinal rails at each end, ensuring the stability and balance of the entire support unit. Simultaneously, multiple first auxiliary rollers are mounted on the bottom of the main support plate and rotatably connected via a first rotating shaft, allowing the support unit to move smoothly along the longitudinal rails during the laying process, improving construction efficiency and reducing labor and material consumption. Furthermore, this design effectively adapts to the space constraints within the tunnel, avoiding the inconvenience and safety hazards associated with traditional steel plate laying methods.

[0016] Optionally, the supporting unit further includes:

[0017] A load-bearing curved portion, the front end of the main support plate is fixedly connected to the load-bearing curved portion, the load-bearing curved portion is bent toward one side of the bottom wall of the main support plate to form a load-bearing curved groove with an opening toward the top wall of the main support plate;

[0018] The load-bearing bending groove is used to accommodate the first auxiliary roller in the adjacent supporting unit.

[0019] By adopting the above technical solution, the design of the load-bearing bending part enables the first auxiliary roller in the adjacent supporting unit to smoothly enter the load-bearing bending groove. The first auxiliary roller can be rotated into the load-bearing bending groove to achieve precise positioning of the supporting unit, and it is easy to overlap the new supporting unit to the supporting unit that is already in place, thereby improving construction efficiency.

[0020] Optionally, an end of the bearing curved portion away from the main support plate is formed with a flange outward of the bearing curved groove, and the flange is used to carry the main support plate in the adjacent support unit.

[0021] By adopting the above technical solution, the flange design enables the main support plates in adjacent support units to be stably overlapped, thereby improving the integrity and stability of the entire inverted arch trestle and avoiding safety hazards caused by loose connections between support units.

[0022] Optionally, the load-bearing curved portion and the main support plate are connected with each other in a smooth transition, and the connection between the load-bearing curved portion and the main support plate is used for overlapping the main support plates in adjacent support units.

[0023] By adopting the above technical solution, the smooth transition connection between the load-bearing curved portion and the main support plate enables the first auxiliary rollers in adjacent supporting units to be smoothly overlapped on the load-bearing curved portion, thereby improving the stability of the entire inverted arch trestle during the assembly process.

[0024] Optionally, the supporting unit further includes a second auxiliary roller, which is rotatably connected to a side of the bearing curved portion away from the opening of the bearing curved groove via a second rotating shaft, and the second rotating shaft is parallel to the second direction.

[0025] By adopting the above technical solution, a second auxiliary roller is provided on the load-bearing curved portion of the support unit, which helps to reduce the friction of the support unit during movement and ensures that the support unit can move more smoothly along the longitudinal track, thereby improving construction efficiency and safety; at the same time, the second auxiliary roller can also enhance the overall stability of the support unit and avoid the risk of tipping due to uneven force.

[0026] Optionally, the longitudinal rail is an I-beam with grooves on both sides.

[0027] By adopting the above technical solution, the longitudinal rail is designed as an I-beam with grooves on both sides, which can effectively enhance the stability and load-bearing capacity of the structure.

[0028] Optionally, a locking assembly is further included, the locking assembly comprising:

[0029] a lower pressing bar, the lower pressing bar being located in the load-bearing bending groove and arranged parallel to the second direction, and the lower pressing bar being able to slide in the load-bearing bending groove along the third direction;

[0030] a compression spring, wherein the expansion and contraction direction of the compression spring is parallel to the third direction, one end of the compression spring is fixedly connected to the lower pressing bar, and the other end is fixedly connected to the load-bearing curved portion; and

[0031] wedge-shaped push blocks, each corresponding to one end of the lower pressing strip is provided with a wedge-shaped push block, and the wedge-shaped push blocks are slidably connected to the bearing curved portion along the second direction;

[0032] The wedge-shaped push block has a first wedge surface and a second wedge surface, the first wedge surface is located on the side where the wedge-shaped push blocks at both ends of the lower press strip are close to each other, and the second wedge surface is located on the side where the wedge-shaped push blocks at both ends of the lower press strip are away from each other;

[0033] The first wedge-shaped surface is inclined toward the side of the lower pressing strip in a direction from the top wall of the main support plate to the bottom wall of the main support plate;

[0034] The second wedge-shaped surface is inclined toward the side of the lower pressure strip in a direction from the bottom wall of the main support plate to the top wall of the main support plate;

[0035] The lower pressing strip is slidably connected to the wedge-shaped push block along the inclined direction of the first wedge-shaped surface;

[0036] During the process of the wedge-shaped push blocks at both ends of the lower pressing bar moving away from each other, the wedge-shaped push blocks are inserted into the groove, and the second wedge-shaped surface is used to contact the longitudinal track.

[0037] By adopting the above technical solution, during operation, after the first auxiliary roller in the adjacent support unit is pressed down to the lower pressure bar, the lower pressure bar can be pressed downward, so that the two wedge-shaped push blocks move away from each other, so that the second wedge-shaped surface is pressed tightly against the longitudinal track; the locking assembly can effectively fix the support unit firmly on the longitudinal track, avoiding the risk of the support unit loosening or even falling off due to vibration in the tunnel or external impact, thereby ensuring the safety and stability of the construction process. At the same time, this design makes the installation and disassembly of each support unit more convenient, improves construction efficiency, and reduces maintenance costs. In addition, the design of the wedge-shaped push block can also adapt to longitudinal tracks of different sizes, enhancing the versatility of the system.

[0038] Optionally, a telescopic rod is further included, wherein the telescopic direction of the telescopic rod is parallel to the third direction, and one end of the telescopic rod is fixedly connected to the lower pressure bar, and the other end is fixedly connected to the load-bearing curved portion.

[0039] By adopting the above technical solution, the setting of the telescopic rod ensures the stable movement of the lower pressure bar in the load-bearing bending groove; specifically, the telescopic direction of the telescopic rod is parallel to the third direction, which can guide and limit the movement of the lower pressure bar, preventing the lower pressure bar from offsetting or getting stuck during movement.

[0040] Optionally, in two adjacent supporting units, when the main supporting plate in one supporting unit is overlapped with the flange in the other supporting unit, the main supporting plates in the two supporting units are flush.

[0041] By adopting the above technical solution, the main support plates between two adjacent support units can fit tightly and remain level, thereby ensuring that the surface of the entire inverted arch trestle is flat and stable.

[0042] Optionally, an inclined plate is further included, which is fixedly connected to the end of the longitudinal track and is inclined toward the ground toward a side away from the longitudinal track.

[0043] By adopting the above technical solution, the inclined plate is fixedly connected to the end of the longitudinal track and tilted toward the ground, so that the vehicle can travel more smoothly from the ground in the tunnel to the inclined plate, thereby improving construction efficiency and safety.

[0044] In summary, this application includes at least one of the following beneficial technical effects:

[0045] 1. This application improves construction efficiency and reduces the consumption of manpower and material resources. In addition, it can effectively adapt to the space limitations inside the tunnel and avoid the inconvenience and safety hazards caused by traditional steel plate laying methods;

[0046] 2. The flange design allows the main support plates in adjacent support units to be stably overlapped, thereby improving the integrity and stability of the entire inverted arch trestle and avoiding safety hazards caused by loose connections between support units;

[0047] 3. The locking assembly can effectively and firmly fix the support unit on the longitudinal track, avoiding the risk of the support unit loosening or even falling off due to vibration in the tunnel or external impact, thereby ensuring the safety and stability of the construction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0049] Figure 2 This is a schematic structural diagram of a supporting unit from a first perspective in an embodiment of the present application;

[0050] Figure 3 This is a schematic structural diagram of the supporting unit from a second viewing angle in an embodiment of the present application;

[0051] Figure 4 This is a structural diagram of the main support plate in an embodiment of the present application;

[0052] Figure 5 This is a schematic structural diagram of the supporting unit from a third viewing angle in an embodiment of the present application;

[0053] Figure 6 yes Figure 5 Enlarged view of part A;

[0054] Figure 7 yes Figure 5 Enlarged view of part B;

[0055] Figure 8 This is a schematic structural diagram of a supporting unit in an embodiment of the present application;

[0056] Figure 9 yes Figure 8 Magnified view of part C.

[0057] Explanation of the accompanying drawings: 1. longitudinal track; 11. groove; 12. baffle; 13. inclined plate; 14. cross brace; 3. supporting unit; 31. main supporting plate; 311. top wall; 312. bottom wall; 313. guide groove; 314. front end; 315. rear end; 32. first auxiliary roller; 33. load-bearing bending portion; 331. load-bearing bending groove; 34. flange; 35. second auxiliary roller; 4. locking assembly; 41. lower pressure strip; 42. compression spring; 43. telescopic rod; 44. wedge-shaped push block; 441. first wedge surface; 442. second wedge surface; 443. guide slide; 45. guide slider. DETAILED DESCRIPTION

[0058] The following is combined with Figure 1-9 This application is further described in detail. For ease of description, this application introduces directional terms such as a first direction, a second direction, and a third direction to form a three-dimensional reference direction. The directional terms used, such as "a first direction, a second direction, and a third direction," can be specifically shown with reference to the figure, where X represents the first direction X, Y represents the second direction Y, and Z represents the third direction Z. The first direction X, the second direction Y, and the third direction Z are perpendicular to each other.

[0059] The present application discloses a tunnel full arc mold long inverted arch trestle construction process. Figure 1 The construction process of the tunnel full-arc formwork inverted arch trestle includes the following steps:

[0060] S1: Two rows of longitudinal tracks 1 are laid side by side on both sides of the inverted arch. The longitudinal tracks 1 are parallel to a first direction, which is the tunneling direction. The two rows of longitudinal tracks 1 form a avoidance zone in a second direction, and the inverted arch is located below the avoidance zone.

[0061] S2: Paving structures for vehicles and people to walk on:

[0062] Inclined plates 13 are laid at both ends of the longitudinal track 1. In a first direction, the inclined plates 13 are inclined downwardly toward the side away from the longitudinal track 1, so that vehicles can travel more smoothly and stably from the ground inside the tunnel to the junction of the ground and the inclined plates 13. In order to overlap the inclined plates 13, a cross brace 14 is fixedly connected to the end of the longitudinal track 1. In the present disclosure, the cross brace 14 is an I-beam, and the end of the inclined plate 13 closest to the track is fixedly connected to the cross brace 14.

[0063] Laying the support unit 3 to be placed on the longitudinal track 1 and fixing the support unit 3 to be placed to the longitudinal track 1 to form the support unit 3 in place;

[0064] Along the tunnel excavation direction, the supporting units 3 to be placed are laid on the longitudinal track 1 in sequence.

[0065] Reference Figure 2 and Figure 3The supporting unit 3 includes a main supporting plate 31 having a bottom wall surface 312 and a top wall surface 311. The main supporting plate 31 is arranged perpendicular to the third direction. The two ends of the main supporting plate 31 are correspondingly overlapped on the longitudinal track 1 on one side. Specifically, the bottom wall surface 312 of the main supporting plate 31 is in contact with the longitudinal track 1. In the first direction, a plurality of supporting units 3 are laid in sequence, that is, a plurality of main supporting plates 31 are laid in sequence, and people or vehicles can walk along the main supporting plates 31.

[0066] The support unit 3 further includes a plurality of first auxiliary rollers 32, which are spaced apart in the second direction. The first auxiliary rollers 32 are located on one side of the bottom wall 312 of the main support plate 31, and the first auxiliary rollers 32 are rotatably connected to the main support plate 31 via a first rotating shaft, which is parallel to the second direction. When the main support unit 3 is pushed along the first direction, the first auxiliary rollers 32 can make the main support plate 31 move more smoothly.

[0067] In order to facilitate the movement of the support unit 3 to be in place along the support unit 3 already in place in the first direction, a guide groove 313 is provided on the top wall surface 311 of the main support plate 31. The guide groove 313 is arranged parallel to the first direction. In the second direction, a plurality of guide grooves 313 are distributed. The first auxiliary roller 32 can extend into the guide groove 313 so that a row of first auxiliary rollers 32 are guided by the inner wall of each guide groove 313 to roll along the first direction.

[0068] Reference Figure 3 and Figure 4 The main support plate 31 has a front end 314 and a rear end 315. In the support unit 3 that has been in place, when the main support plate 31 is located in the tunnel, the end close to the tunnel face is the front end 314, and the end away from the tunnel face is the rear end 315. The first auxiliary roller 32 is close to the front end 314 of the main support plate 31;

[0069] In some embodiments of the present application, the support unit 3 further includes a load-bearing curved portion 33, which is fixedly connected to the front end 314 of the main support plate 31. In the second direction, the length of the load-bearing curved portion 33 is less than the length of the main support plate 31, so that the load-bearing curved portion 33 can extend between the two rows of longitudinal rails 1, and the load-bearing curved portion 33 is bent from the top wall surface 311 to the bottom wall surface 312 of the main support plate 31 to form a concave load-bearing curved groove 331, which is used to accommodate the first auxiliary roller 32 in other support units 3; the load-bearing curved portion 33 is smoothly connected to the main support plate 31, and the main support plate 31 of the two adjacent main support plates 31 is closer to the face. The rear end 315 of the support plate 31 is overlapped at the junction of the main support plate 31 and the bearing curved portion 33 away from the tunnel face; the opening of the bearing curved groove 331 is located on the side of the top wall 311 of the main support plate 31 away from the bottom wall 312 of the main support plate 31. In the third direction, a second auxiliary roller 35 is provided on the side of the bearing curved portion 33 away from the opening. The second auxiliary roller 35 is rotatably connected to the bearing curved portion 33 via a second rotating shaft, and the second rotating shaft is arranged parallel to the second direction. In some embodiments, a telescopic rod with adjustable length can also be provided between the second auxiliary roller 35 and the bearing curved portion 33 to facilitate adjusting the second auxiliary roller 35 to contact the ground in the tunnel;

[0070] In the first direction, a flange 34 is formed on the side of the load-bearing curved portion 33 away from the main support plate 31, and the flange 34 is used for overlapping the main support plates 31 in adjacent support units 3; in two adjacent support units 3, the main support plate 31 close to the tunnel face is overlapped on the flange 34 in the support unit 3 away from the tunnel face, and the top wall surfaces 311 of the main support plates 31 in the two adjacent support units 3 are flush.

[0071] Reference Figure 5 、 Figure 6 and Figure 7 In some embodiments of the present application, a locking assembly 4 is further included, and the locking assembly 4 includes a lower pressing bar 41, a compression spring 42, a telescopic rod 43 and a wedge-shaped push block 44;

[0072] The lower pressing bar 41 is located in the bearing bending groove 331 and is arranged parallel to the second direction. The lower pressing bar 41 can move along the third direction in the bearing bending groove 331.

[0073] A plurality of compression springs 42 are provided between the lower pressing bar 41 and the bearing curved portion 33. One end of the compression spring 42 is fixedly connected to the lower pressing bar 41, and the other end is fixedly connected to the bottom of the groove of the bearing curved portion 33. The expansion and contraction direction of the compression spring 42 is parallel to the third direction, so that the lower pressing bar 41 can move along the third direction within the bearing curved groove 331.

[0074] The telescopic direction of the telescopic rod 43 is parallel to the third direction. One end of the telescopic rod 43 is fixedly connected to the lower pressing bar 41, and the other end is fixedly connected to the bearing curved portion 33 to guide the movement of the lower pressing bar 41 along the third direction.

[0075] In the second direction, a wedge-shaped pushing block 44 is correspondingly provided at each end of the lower press strip 41, and the wedge-shaped pushing block 44 is slidably connected to the bearing bent portion 33 along the second direction. The wedge-shaped pushing block 44 has a first wedge surface 441 and a second wedge surface 442. In the second direction, a side wall of the wedge-shaped pushing blocks 44 on both sides that are close to each other is the first wedge surface 441, and a side wall of the wedge-shaped pushing blocks 44 on both sides that are away from each other is the second wedge surface 442; in the direction from the top wall surface 311 of the main support plate 31 to the bottom wall surface 312 of the main support plate 31, the two first wedge surfaces 441 at both ends of the lower press strip 41 are inclined toward the side that is close to each other, and the second wedge surfaces 442 at both ends of the lower press strip 41 are inclined toward the side that is away from each other;

[0076] The lower pressing bar 41 is slidably connected to the first wedge surface 441 of the wedge-shaped pushing block 44 along the inclined direction of the first wedge surface 441. Specifically, the wedge-shaped pushing block 44 is provided with a guide slot 443 on the first wedge surface 441. The guide slot 443 is arranged parallel to the inclined direction of the first wedge surface 441. The end of the lower pressing bar 41 is fixedly connected to a guide slider 45. The guide slider 45 is adapted to be located in the guide slot 443 and can slide in the guide slot 443 along the inclined direction of the first wedge surface 441. In the present disclosure, the cross section of the guide slot 443 and the guide slider 45 are both adapted to be T-shaped, so that the guide slider 45 slides under the guidance of the slot wall of the guide slot 443.

[0077] When the lower pressure bar 41 moves toward the bottom of the bearing bending groove 331, it pushes the two wedge-shaped pushing blocks 44 to move along the second direction toward the side away from each other; when the lower pressure bar 41 moves toward the opening of the bearing bending groove 331, it pushes the two wedge-shaped pushing blocks 44 to move along the second direction toward the side close to each other.

[0078] Reference Figure 8 and Figure 9 The longitudinal rail 1 is an I-beam with grooves 11 on both sides. The wedge-shaped push blocks 44 on both sides are inserted into the grooves 11 of the longitudinal rail 1 during the process of moving away from each other, and the second wedge-shaped surfaces 442 of the wedge-shaped push blocks 44 are pressed against the upper wall of the longitudinal rail 1. The longitudinal rail 1 can be tightened by the wedge-shaped push blocks 44 to achieve the fixation of the support unit 3 and the longitudinal rail 1;

[0079] In some embodiments of the present application, the longitudinal rails 1 on both sides are provided with a baffle 12 in the groove 11 on the side close to each other, and the baffle 12 is fixedly connected to the upper wall of the longitudinal rail 1. When the wedge-shaped push blocks 44 on both sides move toward the side away from each other, the second wedge surface 442 of the wedge-shaped push block 44 can contact the baffle 12, so as to fix the support unit 3 and the longitudinal rail 1 by pressing the baffle 12 with the wedge-shaped push block 44.

[0080] The principle of placing the support unit 3 on the longitudinal track 1 is as follows: a tractor or other pulling device that can pull or push the support unit 3 to move is set in the direction of the arch close to the tunnel face and away from the tunnel face, and the pulling device is used to move the support units 3 one by one along the guide groove 313 to the required position. After the first auxiliary roller 32 on the support unit 3 presses the lower pressure plate downward, the two wedge-shaped pushing blocks 44 can press the baffle 12 on the longitudinal guide rail tightly during the process of moving away from each other, so that the support unit 3 can be fixed to the longitudinal track 1 to prevent the support unit 3 from shaking.

[0081] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A tunnel full-arc mold length inverted arch trestle construction process, characterized in that: The steps include: S1: two rows of longitudinal tracks (1) are laid side by side on both sides of the inverted arch, the longitudinal tracks (1) are parallel to a first direction, and the two rows of longitudinal tracks (1) form a avoidance zone in a second direction, the avoidance zone being located above the inverted arch; S2: Paving structures for vehicles and people to walk on: Laying the support monomer (3) to be placed on the longitudinal track (1), and fixing the support monomer (3) to be placed to the longitudinal track (1) to form the support monomer (3) in place; Along the tunnel excavation direction, the supporting units (3) to be placed are laid on the longitudinal track (1) in sequence; The supporting monomer (3) comprises: A main support plate (31) having a bottom wall surface (312) and a top wall surface (311), wherein two ends of the main support plate (31) are respectively overlapped with a row of longitudinal rails (1); and, a plurality of first auxiliary rollers (32), wherein the first auxiliary rollers (32) are located on one side of the bottom wall surface (312) of the main support plate (31), and the first auxiliary rollers (32) are rotatably connected to the main support plate (31) via a first rotating shaft, and the first rotating shaft is parallel to the second direction; The supporting monomer (3) further comprises: A bearing bent portion (33), the front end (314) of the main support plate (31) is fixedly connected with the bearing bent portion (33), the bearing bent portion (33) being bent toward one side of the bottom wall surface (312) of the main support plate (31) to form a bearing bent groove (331) with an opening toward the top wall surface (311) of the main support plate (31); The load-bearing curved groove (331) is used to accommodate the first auxiliary roller (32) in the adjacent supporting unit (3); The longitudinal rail (1) is an I-beam with grooves (11) on both sides; It also includes a locking assembly (4), the locking assembly (4) including: a lower pressing bar (41), the lower pressing bar (41) being located in the bearing bending groove (331) and arranged parallel to the second direction, and the lower pressing bar (41) being able to slide along the third direction in the bearing bending groove (331); a compression spring (42), wherein the expansion and contraction direction of the compression spring (42) is parallel to the third direction, one end of the compression spring (42) is fixedly connected to the lower pressing bar (41), and the other end is fixedly connected to the load-bearing curved portion (33); and A wedge-shaped push block (44), wherein the two ends of the lower pressing strip (41) are respectively provided with the wedge-shaped push block (44), and the wedge-shaped push block (44) is slidably connected to the bearing curved portion (33) along the second direction; The wedge-shaped push block (44) has a first wedge-shaped surface (441) and a second wedge-shaped surface (442), wherein the first wedge-shaped surface (441) is located on a side where the wedge-shaped push blocks (44) at both ends of the lower press strip (41) are close to each other, and the second wedge-shaped surface (442) is located on a side where the wedge-shaped push blocks (44) at both ends of the lower press strip (41) are far away from each other. The first wedge-shaped surface (441) is inclined in a direction from the top wall surface (311) of the main support plate (31) to the bottom wall surface (312) of the main support plate (31) toward one side of the lower pressure strip (41); The second wedge-shaped surface (442) is inclined in a direction from the bottom wall surface (312) of the main support plate (31) to the top wall surface (311) of the main support plate (31) toward one side of the lower pressure strip (41); The lower pressing strip (41) is slidably connected to the wedge-shaped push block (44) along the inclined direction of the first wedge-shaped surface (441); When the wedge-shaped push blocks (44) at both ends of the lower pressing strip (41) move in directions away from each other, the wedge-shaped push blocks (44) are inserted into the groove (11), and the second wedge-shaped surface (442) is used to contact the longitudinal track (1).

2. The tunnel full arc mold length inverted arch trestle construction process according to claim 1 is characterized in that: One end of the bearing curved portion (33) away from the main support plate (31) is formed with a flange (34) outside the bearing curved groove (331), and the flange (34) is used to carry the main support plate (31) in the adjacent support unit (3).

3. The tunnel full arc mold long inverted arch trestle construction process according to claim 2 is characterized in that: The load-bearing curved portion (33) and the main support plate (31) are connected in a smooth transition, and the connection between the load-bearing curved portion (33) and the main support plate (31) is used for overlapping the main support plates (31) in adjacent support units (3).

4. The tunnel full arc mold long inverted arch trestle construction process according to claim 3 is characterized in that: The supporting unit (3) further includes a second auxiliary roller (35), which is rotatably connected to a side of the bearing curved portion (33) away from the opening of the bearing curved groove (331) via a second rotating shaft, and the second rotating shaft is parallel to the second direction.

5. The tunnel full arc mold long inverted arch trestle construction process according to claim 4 is characterized in that: It also includes a telescopic rod (43), the telescopic direction of the telescopic rod (43) is parallel to the third direction, and one end of the telescopic rod (43) is fixedly connected to the lower pressing bar (41), and the other end is fixedly connected to the bearing curved portion (33).

6. The tunnel full arc form long inverted arch trestle construction process according to claim 5 is characterized in that: In two adjacent support monomers (3), when the main support plate (31) in one support monomer (3) overlaps the flange (34) in the other support monomer (3), the main support plates (31) in the two support monomers (3) are flush.

7. The tunnel full arc mold long inverted arch trestle construction process according to claim 6 is characterized in that: It also includes an inclined plate (13), which is fixedly connected to the end of the longitudinal track (1), and the inclined plate (13) is inclined toward the ground toward a side away from the longitudinal track (1).

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