Tunnel assembly type lining structure supporting system with rapid laying function

Abstract

The invention relates to a tunnel assembly type lining structure supporting system with a rapid laying function, which comprises an inverted arch box type lining precast block arranged at the bottom of a tunnel, curved wall lining precast blocks arranged on two side walls of the tunnel and an arc-shaped lining precast block arranged at the top of the tunnel, and the end parts of the inverted arch box type lining precast blocks, the end parts of the curved wall lining precast blocks and the end parts of the arc-shaped lining precast blocks are respectively connected through concave-convex tenon connecting structures, bolt connecting joint structures and socket joint structure connecting pieces, are sequentially paved along the longitudinal direction of the tunnel and are connected through longitudinal prestress fastening structures. Compared with cast-in-place construction, the standardization degree of tunnel construction is improved, the quality is more reliable, the construction workload in the tunnel is reduced, and the construction efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel lining structures, and in particular to a tunnel assembled lining structure support system with a rapid laying function. Background Art

[0002] Lining refers to a permanent support structure built with reinforced concrete and other materials along the perimeter of the tunnel to prevent deformation or collapse of the surrounding rock. Lining technology is usually used in tunnel engineering and water conservancy channels for the isolation or other protection of buildings. Lining is simply the inner lining, the most common of which is block lining, which can be prestressed high-pressure grouting plain concrete lining.

[0003] Since the cast-in-place structure is easily affected by factors such as on-site construction conditions, external environment and construction personnel during construction, some tunnels have suffered from deformation, cracking, bulging and mud overflowing of inverts, resulting in excessive maintenance costs during operation, and even affecting train operation in severe cases. Through investigation, it was found that the uneven thickness of the invert during construction, the inclusion of debris in the concrete pouring, and the quality defects of the construction joints seriously affected the quality of the invert. Therefore, it is necessary to study a new type of invert structure with more reliable quality. Prefabricated structure, with its factory-based and standardized production plan, reduces construction pollution, improves the working environment, reduces the workload in the tunnel, reduces the labor cost of on-site construction, and has more reliable quality. It is an important measure of green construction advocated by the country and a development direction of tunnel construction technology in the future. At present, prefabricated structures have been well applied in some construction fields. With the improvement of my country's tunnel construction technology and equipment manufacturing level, the external conditions for tunnels to use prefabricated inverts are already in place. Under the development trend of mechanization and intelligence of tunnel construction, the industrialization of prefabricated structures in tunnels will also be a development direction of tunnel construction.

[0004] In view of the shortcomings of the prior art, the present invention combines the engineering characteristics of mining tunnels and open-cut tunnels, comprehensively considers factors such as structural force mode and characteristics, boundary conditions, joint stiffness, etc., and proposes a suitable prefabricated lining structure design theory by analogy with shield tunnel engineering, relying on theoretical analysis, model testing and numerical calculation. Summary of the invention

[0005] In view of the above problems, the present invention provides a tunnel prefabricated lining structure support system with a rapid laying function. Compared with cast-in-place construction, it improves the standardization of tunnel construction, has more reliable quality, reduces the workload of in-tunnel construction, and improves construction efficiency.

[0006] The specific technical solutions are as follows: A tunnel prefabricated lining structure support system with a rapid laying function comprises an inverted arch box-shaped lining prefabricated block arranged at the bottom of the tunnel, a curved wall lining prefabricated block arranged at the two side walls of the tunnel, and an arc-shaped lining prefabricated block arranged at the top of the tunnel, wherein the inverted arch box-shaped lining prefabricated block and the curved wall lining prefabricated block and the ends of the curved wall lining prefabricated block and the arc-shaped lining prefabricated block are respectively connected by connecting pieces, wherein the connecting pieces comprise a concave-convex tenon connection structure, a bolt connection joint structure, and a socket-type joint structure, and the adjacent inverted arch box-shaped lining prefabricated blocks and the adjacent curved wall lining prefabricated blocks are respectively connected by a longitudinal prestressed fastening structure; the upper end surface of the inverted arch box-shaped lining prefabricated block is symmetrically provided with an inverted arch filling The prefabricated filling blocks are provided with a central ditch on one end face of the two inverted arch filling prefabricated blocks which are close to each other, and a vertical shaft is provided on one end of the upper end faces of the two inverted arch filling prefabricated blocks which are far away from each other, and the bottom of the vertical shaft is connected with the central ditch through a drainage pipe, and a placement groove for placing a water channel grille is provided on the upper end face of the inverted arch filling prefabricated block at the port position of the vertical shaft, and drainage outlets distributed in a rectangular array are provided on the water channel grille, and a flippable drainage outlet shielding component for dynamically shielding the drainage outlet is also provided on the water channel grille, and the drainage outlet shielding component includes a shield plate arranged inside the drainage outlet, a shield plate initial component for dynamically maintaining the shield plate in a horizontal state for shielding, and an elastic release component for keeping the shield plate in a vertical state when drainage is required.

[0007] Furthermore, several of the baffles located in the same row are connected by a transmission rod, the axial direction of the transmission rod is arranged along the width direction of the water channel grille, the left and right ends of the transmission rod are respectively connected to the left and right side surfaces of the water channel grille through a first bearing, and one end of the transmission rod also penetrates the side surface of the water channel grille and extends to the outside and is coaxially provided with a gear, and several of the transmission rods are arranged in sequence at equal intervals along the length direction of the water channel grille, that is, several of the gears are arranged in sequence at equal intervals along the length direction of the water channel grille.

[0008] Furthermore, the baffle initial assembly includes a first shell, the length direction of the first shell is arranged along the length direction of the water channel grille and is arranged on a side surface of the water channel grille close to the gear, a rack meshing with a plurality of the gears is arranged inside the first shell along its length direction, a second shell is arranged in the middle of the upper end surface of the first shell along its length direction, a movable rod is arranged inside the second shell along its length direction, a first connecting rod for connecting with the rack is arranged in the middle of the movable rod, a fixed limit plate and a movable limit plate are symmetrically arranged at the upper end of the second shell at the front and rear ends of the movable rod, the movable limit plate is connected to the inside of the second shell through an elastic release assembly, a compressed first spring is partially sleeved on the movable rod between the fixed limit plate and the first connecting rod, and a compressed second spring is partially sleeved on the movable rod between the movable limit plate and the first connecting rod.

[0009] Furthermore, the compression amounts of the first spring and the second spring are similar.

[0010] Furthermore, the upper end surface of the inverted arch filling prefabricated block is also provided with a second placement groove for placing the first shell.

[0011] Furthermore, the elastic force release assembly includes a first cylinder body arranged vertically and a second cylinder body arranged horizontally, the upper end surface of the inverted arch filling prefabricated block is provided with a third placement groove for accommodating the first cylinder body, the interior of the first cylinder body is adapted to be equipped with a first piston, the upper end surface of the first piston is provided with a second movable rod vertically upward, the upper end portion of the second movable rod passes through the upper end surface of the first cylinder body and is horizontally provided with a support plate, the upper end surface of the support plate is provided with a water absorbent part, and the portion of the second movable rod located outside the first cylinder body is also sleeved with a third spring, an air pipe is connected between the lower end portion of the first cylinder body and the second cylinder body, the second cylinder body is provided inside the second shell and is arranged along the axial direction of the movable rod, the interior of the second cylinder body is adapted to be equipped with a second piston, a side of the second piston away from the air pipe is horizontally provided with a third movable rod, and the other end of the third movable rod passes through the end surface of the second cylinder body and is connected to the dynamic limit plate.

[0012] Furthermore, the upper end surface of the support plate is flush with the upper end of the third placement groove, and the water absorbing member is a sponge.

[0013] Furthermore, a second drainage pipe is connected between the lower end surface of the third placement groove and the vertical shaft.

[0014] Furthermore, the mortise and tenon connection structure includes a first mortise and a first groove which are longitudinally arranged to be mortised with each other, and a second mortise and a second groove which are mortised with each other, a number of the first mortise and a plurality of the first grooves are evenly arranged at the left and right ends of the upper end surface of the inverted arch box-type lining prefabricated block, a number of the first grooves are evenly arranged at the lower ends of the two curved wall lining prefabricated blocks, a number of the second mortise and a plurality of the second grooves are evenly arranged at the upper ends of the two curved wall lining prefabricated blocks.

[0015] Furthermore, the bolt connection joint structure includes a first bolt connection joint, a second bolt connection joint, and a third bolt connection joint and a fourth bolt connection joint that are longitudinally arranged and connected to each other, and a number of the first bolt connection joints are evenly arranged at the upper ends of the left and right side surfaces of the inverted arch box-type lining prefabricated block, a number of the second bolt connection joints are evenly arranged at the lower ends of the outer side surfaces of the two curved wall lining prefabricated blocks, the first bolt connection joints and the second bolt connection joints are connected by a number of fastening bolts, a number of the third bolt connection joints are evenly arranged at the upper ends of the outer side surfaces of the two curved wall lining prefabricated blocks, a number of the fourth bolt connection joints are evenly arranged at both ends of the outer side surfaces of the arc lining prefabricated blocks, and the third bolt connection joints and the fourth bolt connection joints are connected by a number of fastening bolts.

[0016] Furthermore, the socket-and-spigot joint structure comprises a first oblique bolt, a second oblique bolt, and a third oblique bolt and a fourth oblique bolt which are longitudinally staggered. The inner walls and end faces of the inverted arch box-type lining prefabricated block, the curved wall lining prefabricated block and the arc-shaped lining prefabricated block are all provided with oblique bolt holes. The oblique bolt holes on the inner wall of the inverted arch box-type lining prefabricated block and the oblique bolt holes on the lower end face of the curved wall lining prefabricated block are communicated with each other for filling the first oblique bolts. The oblique bolt holes on the lower end of the inner side face of the curved wall lining prefabricated block and the oblique bolt holes on the upper end face of the inverted arch box-type lining prefabricated block are communicated with each other for filling the second oblique bolts. The oblique bolt holes on the upper end of the inner side face of the curved wall lining prefabricated block and the oblique bolt holes on both end faces of the arc-shaped lining prefabricated block are communicated with each other for filling the third oblique bolts. The oblique bolt holes at both ends of the inner side face of the arc-shaped lining prefabricated block and the oblique bolt holes on the upper end face of the curved wall lining prefabricated block are communicated with each other for filling the fourth oblique bolts.

[0017] Furthermore, the longitudinal prestressed fastening structure includes longitudinal reserved holes penetrating the longitudinal end surfaces of the inverted arch box-type lining prefabricated block, the curved wall lining prefabricated block and the arc-shaped lining prefabricated block, and the corresponding longitudinal reserved holes are fastened by prestressed steel rods and anchors, and the inverted arch box-type lining prefabricated block, the curved wall lining prefabricated block and the arc-shaped lining prefabricated block are provided with a first overlapping protrusion connected to the longitudinal reserved hole at one longitudinal end thereof, and the inverted arch box-type lining prefabricated block, the curved wall lining prefabricated block and the arc-shaped lining prefabricated block are provided with a first overlapping groove connected to the longitudinal reserved hole at the other longitudinal end thereof.

[0018] Furthermore, the inner and outer sides of the inverted arch box-type lining prefabricated blocks, the curved wall lining prefabricated blocks and the arc-shaped lining prefabricated blocks are respectively provided with arc-shaped waterproof layers.

[0019] Furthermore, a plurality of first longitudinal waterproof strips are provided at the mortise and tenon joints of the inverted arch box-type lining prefabricated blocks and the curved wall lining prefabricated blocks, a plurality of second longitudinal waterproof strips are provided at the mortise and tenon joints of the curved wall lining prefabricated blocks and the arc-shaped lining prefabricated blocks, and arc-shaped waterproof strips are provided at both end faces of the inverted arch box-type lining prefabricated blocks, the curved wall lining prefabricated blocks and the arc-shaped lining prefabricated blocks along their longitudinal direction respectively.

[0020] Furthermore, the arch box type lining prefabricated block, the curved wall lining prefabricated block and the arc lining prefabricated block are respectively provided with a second overlapping protrusion along one longitudinal end surface thereof, and the arch box type lining prefabricated block, the curved wall lining prefabricated block and the arc lining prefabricated block are respectively provided with a second overlapping groove overlapping with the second overlapping protrusion along the other longitudinal end surface thereof.

[0021] Furthermore, an inspection crossing connected to the central water ditch is provided between the upper end surfaces of the two inverted arch filling prefabricated blocks, and a cover plate is provided on the inspection crossing.

[0022] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention provides a tunnel prefabricated lining structure support system with a rapid laying function. The system comprises an inverted arch box-shaped lining prefabricated block arranged at the bottom of the tunnel, a curved wall lining prefabricated block arranged at both side walls of the tunnel, and an arc-shaped lining prefabricated block arranged at the top of the tunnel. The ends of the inverted arch box-shaped lining prefabricated block, the curved wall lining prefabricated block, and the arc-shaped lining prefabricated block are connected by a convex-concave joint structure, a bolted joint structure, and a socket-type joint structure connector, respectively. The system is laid in sequence along the longitudinal direction of the tunnel and connected by a longitudinal prestressed fastening structure. Compared with cast-in-place construction, the system improves the standardization of tunnel construction, makes the quality more reliable, reduces the workload of in-tunnel construction, and improves construction efficiency.

[0023] (2) The present invention provides a tunnel prefabricated lining structure support system with a rapid laying function. A central ditch and a vertical shaft are arranged in the inverted arch filling prefabricated block, and a drainage pipe is arranged to achieve the interconnection between the central ditch and the vertical shaft. A placement groove for placing a water channel grille is arranged at the upper end of the vertical shaft, and a drainage outlet shielding component is arranged at the drainage outlet of the water channel grille. When there is no water, the shielding plate is in a horizontal state at the drainage outlet to achieve shielding of the drainage outlet, thereby reducing the entry of foreign debris and dust into the vertical shaft to block the drainage pipe, and can reduce the spread of odor in the central ditch through the vertical shaft to the tunnel, and facilitate the assembly between the inverted arch filling prefabricated block.

[0024] (3) The present invention provides a tunnel prefabricated lining structure support system with a rapid laying function. By setting an elastic release component, when water occurs, the water absorbing component becomes heavier after absorbing water, thereby releasing the elastic force of the second spring. Then, with the help of the reset of the first spring, the shutter is finally tilted to open the drainage port, so that the tunnel water can reach the central ditch through the drainage port and the vertical shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention.

[0026] Figure 2 The present invention Figure 1 A local enlarged schematic diagram of point A.

[0027] Figure 3 The present invention Figure 1 A partial enlarged schematic diagram of point B.

[0028] Figure 4 It is a schematic diagram of the longitudinal prestressed fastening structure of the present invention.

[0029] Figure 5 It is a schematic diagram of the structure of the invert filling prefabricated block of the present invention.

[0030] Figure 6 It is a schematic diagram of the waterway grid structure of the present invention.

[0031] Figure 7 The present invention Figure 6 Schematic diagram of the cross-section at DD.

[0032] Figure 8 It is a schematic diagram of the structure of the drain outlet shielding component of the present invention.

[0033] Fig. 9 It is a schematic diagram of the initial assembly structure of the shield of the present invention.

[0034] Fig.10 The present invention Figure 1 A partial enlarged schematic diagram of point C.

[0035] Fig.11 The present invention Fig. 9 A partial enlarged schematic diagram of point E.

[0036] In the figure: 1. Inverted arch box lining prefabricated block; 2. Curved wall lining prefabricated block; 3. Arc lining prefabricated block; 4. Concave and convex tenon connection structure; 41. First tenon; 42. First groove; 43. Second tenon; 44. Second groove; 51. First bolt connection joint; 6. Socket joint structure; 61. First oblique bolt; 62. Second oblique bolt; 63. Third oblique bolt; 64. Fourth oblique bolt; 7. Longitudinal prestressed fastening structure; 71. Longitudinal reserved hole; 72. Prestressed steel rod; 73. Anchor; 8. Inverted arch filling prefabricated block; 9. Central ditch; 10. Vertical shaft; 11. Drain pipe; 12. Waterway grille; 13. Placement groove; 14. Drainage outlet; 151. baffle; 152, transmission rod; 153, first bearing; 154, gear; 16, baffle initial assembly; 161, first housing; 162, rack; 163, second housing; 164, movable rod; 165, first connecting rod; 167, fixed limit plate; 168, movable limit plate; 169, first spring; 1610, second spring; 17, elastic release assembly; 171, first cylinder; 172, first piston; 173, second movable rod; 174, support plate; 175, water absorbing member; 176, third spring; 177, air pipe; 179, second piston; 1710, third movable rod; 1711, first guide rod; 178, second cylinder; 18. Second placement groove; 19. Third placement groove; 20. Displacement amplification component; 201. Screw; 202. First thread; 203. Second thread; 204. Third thread; 205. First ball nut block; 206. Second ball nut block; 207. Third ball nut block; 208. Second connecting rod; 209. Third connecting rod; 21. Arc-shaped waterproof layer; 22. First longitudinal waterproof strip; 23. Second longitudinal waterproof strip; 24. Arc-shaped waterproof strip; 25. First overlapping protrusion; 26. First overlapping groove; 27. Second overlapping protrusion; 28. Inspection crossing; 29. ​​Cover plate; 30. Second drain pipe. DETAILED DESCRIPTION

[0037] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0038] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0039] Example 1 The present invention provides a tunnel assembly lining structure support system with a rapid laying function, referring to Figure 1 , comprising an inverted arch box-type lining prefabricated block 1 arranged at the bottom of the tunnel, a curved wall lining prefabricated block 2 arranged at both side walls of the tunnel, and an arc-shaped lining prefabricated block 3 arranged at the top of the tunnel, wherein the inverted arch box-type lining prefabricated block 1 and the curved wall lining prefabricated block 2 and the ends of the curved wall lining prefabricated block 2 and the arc-shaped lining prefabricated block 3 are respectively connected by connecting members, wherein the connecting members include a concave-convex tenon connection structure 4, a bolt connection joint structure and a socket-type joint structure 6, and the adjacent inverted arch box-type lining prefabricated blocks 1 and the adjacent The curved wall lining precast blocks 2 and the adjacent arc lining precast blocks 3 are connected by longitudinal prestressed fastening structures 7; the upper end surface of the inverted arch box-type lining precast block 1 is symmetrically provided with an inverted arch filling precast block 8, and the end surface of the two inverted arch filling precast blocks 8 close to each other is also provided with a central ditch 9, and the ends of the upper end surfaces of the two inverted arch filling precast blocks 8 far from each other are respectively provided with a vertical shaft 10, and the bottom of the vertical shaft 10 is connected with the central ditch 9 through a drainage pipe 11. The length direction of the tunnel is the longitudinal direction, and the inverted arch box-type lining precast block 1, the arc lining precast block 3 and the two curved wall lining precast blocks 2 together form an annular protective lining structure to support the inner wall of the tunnel. The annular protective lining structure is laid in sequence along the longitudinal direction of the tunnel and connected by the longitudinal prestressed fastening structure 7. Compared with cast-in-place construction, the standardization of tunnel construction is improved, the quality is more reliable, the workload of in-tunnel construction is reduced, and the construction efficiency is improved.

[0040] Further, as a specific implementation method, refer to Figure 2 and Figure 3 The mortise and tenon connection structure 4 includes a first mortise and tenon 41 and a first groove 42 which are longitudinally arranged and mutually mortised, and a second mortise and tenon 43 and a second groove 44 which are mutually mortised, a plurality of the first mortise and tenon 41 are evenly arranged at the left and right ends of the upper end surface of the inverted arch box-type lining prefabricated block 1, a plurality of the first grooves 42 are evenly arranged at the lower ends of the two curved wall lining prefabricated blocks 2, a plurality of the second mortise and tenon 43 are evenly arranged at the two ends of the arc-shaped lining prefabricated blocks 3, and a plurality of the second grooves 44 are evenly arranged at the upper ends of the two curved wall lining prefabricated blocks 2. The mortise and tenon structure is arranged to facilitate the assembly between the inverted arch box-type lining prefabricated block 1, the curved wall lining prefabricated block 2, and the curved lining prefabricated block 3.

[0041] Further, as a specific implementation method, refer to Figure 2 and Figure 3The bolt connection joint structure includes a first bolt connection joint 51 and a second bolt connection joint that are longitudinally connected to each other, and a third bolt connection joint and a fourth bolt connection joint that are connected to each other. Several of the first bolt connection joints 51 are evenly arranged at the upper ends of the left and right sides of the inverted arch box-type lining prefabricated block 1, and several of the second bolt connection joints are evenly arranged at the lower ends of the outer sides of the two curved wall lining prefabricated blocks 2. The first bolt connection joint 51 and the second bolt connection joint are connected by several fastening bolts. Several of the third bolt connection joints are evenly arranged at the upper ends of the outer sides of the two curved wall lining prefabricated blocks 2, and several of the fourth bolt connection joints are evenly arranged at the two ends of the outer sides of the arc lining prefabricated block 3. The third bolt connection joint and the fourth bolt connection joint are connected by several fastening bolts. The fastening bolts can realize the connection between the first bolt connection joint 51 and the second bolt connection joint and the connection between the third bolt connection joint and the fourth bolt connection joint, further enhancing the assembly stability between the inverted arch box-type lining prefabricated block 1, the curved wall lining prefabricated block 2, and the arc lining prefabricated block 3.

[0042] Further, as a specific implementation method, refer to Figure 2 and Figure 3 The spigot-and-socket joint structure 6 comprises a first oblique bolt 61, a second oblique bolt 62, and a third oblique bolt 63 and a fourth oblique bolt 64, which are arranged in a staggered manner in the longitudinal direction. The inner walls and end faces of the inverted arch box-type lining prefabricated block 1, the curved wall lining prefabricated block 2, and the arc lining prefabricated block 3 are all provided with oblique bolt holes. The oblique bolt holes on the inner wall of the inverted arch box-type lining prefabricated block 1 and the oblique bolt holes on the lower end face of the curved wall lining prefabricated block 2 are communicated with each other for filling the first oblique bolt 61. The oblique bolt holes at the lower end of the inner side surface of the masonry prefabricated block 2 communicate with the oblique bolt holes at the upper end surface of the inverted arch box-type lining prefabricated block 1 for filling the second oblique bolt 62, the oblique bolt holes at the upper end of the inner side surface of the curved wall lining prefabricated block 2 communicate with the oblique bolt holes at both end surfaces of the arc-shaped lining prefabricated block 3 for filling the third oblique bolt 63, and the oblique bolt holes at both ends of the inner side surface of the arc-shaped lining prefabricated block 3 communicate with the oblique bolt holes at the upper end surface of the curved wall lining prefabricated block 2 for filling the fourth oblique bolt 64. The assembly stability between the inverted arch box-type lining prefabricated block 1, the curved wall lining prefabricated block 2, and the arc-shaped lining prefabricated block 3 is further enhanced.

[0043] Further, as a specific implementation method, refer to Figure 1 and Figure 4The longitudinal prestressed fastening structure 7 includes longitudinal reserved holes 71 that penetrate the longitudinal end surfaces of the inverted arch box-type lining prefabricated block 1, the curved wall lining prefabricated block 2, and the arc-shaped lining prefabricated block 3. The corresponding longitudinal reserved holes 71 are fastened by prestressed steel rods 72 and anchors 73. The inverted arch box-type lining prefabricated block 1, the curved wall lining prefabricated block 2, and the arc-shaped lining prefabricated block 3 are provided with a first overlapping protrusion 25 that is connected to the longitudinal reserved hole 71 at one end along the longitudinal direction, and the inverted arch box-type lining prefabricated block 1, the curved wall lining prefabricated block 2, and the arc-shaped lining prefabricated block 3 are provided with a first overlapping groove 26 that is connected to the longitudinal reserved hole 71 at the other end along the longitudinal direction. Prestressed steel rods 72 are respectively used for the longitudinal connection of the inverted arch box-type lining prefabricated block 1, the curved wall lining prefabricated block 2, and the arc lining prefabricated block 3. After the inverted arch box-type lining prefabricated block 1, the curved wall lining prefabricated block 2, and the arc lining prefabricated block 3 produced by the prefabrication yard are transported to the construction site, after the transverse connection work of the inverted arch box-type lining prefabricated block 1, the curved wall lining prefabricated block 2, and the arc lining prefabricated block 3 is completed, the prestressed steel rods 72 are inserted into the longitudinal reserved holes 71 of the inverted arch box-type lining prefabricated block 1, the curved wall lining prefabricated block 2, and the arc lining prefabricated block 3, and tension is applied to the steel rods at one end of the structure, so that the inverted arch box-type lining prefabricated block 1, the curved wall lining prefabricated block 2, and the arc lining prefabricated block 3 are squeezed tightly in the longitudinal direction to form a whole. Prestressed fastening and tensioning, the inverted arch box lining prefabricated block 1, the curved wall lining prefabricated block 2, and the arc lining prefabricated block 3 are tightly connected in the longitudinal direction to achieve the effect of overall continuous force, solving the problem of poor force reliability of assembled structure nodes. The prestressed steel rod 72 runs through the entire inverted arch box lining prefabricated block 1, the curved wall lining prefabricated block 2, and the arc lining prefabricated block 3. Compared with bolt connections and prestressed steel strands, it can provide greater rigidity, effectively avoid the problem of stress concentration, and give full play to the performance of the material.

[0044] Further, as a specific implementation method, refer to Figure 1 The inner and outer sides of the inverted arch box-shaped lining prefabricated block 1, the curved wall lining prefabricated block 2, and the arc-shaped lining prefabricated block 3 are respectively provided with an arc-shaped waterproof layer 21. The waterproof properties of the inverted arch box-shaped lining prefabricated block 1, the curved wall lining prefabricated block 2, and the arc-shaped lining prefabricated block 3 are improved.

[0045] Further, as a specific implementation method, refer to Figure 2 , Figure 3 and Figure 5The mortise and tenon positions of the inverted arch box-type lining prefabricated block 1 and the curved wall lining prefabricated block 2 are also provided with a plurality of first longitudinal waterproof strips 22, the mortise and tenon positions of the curved wall lining prefabricated block 2 and the arc lining prefabricated block 3 are also provided with a plurality of second longitudinal waterproof strips 23, and the inverted arch box-type lining prefabricated block 1, the curved wall lining prefabricated block 2, and the arc lining prefabricated block 3 are respectively provided with arc waterproof strips 24 at both end surfaces along the longitudinal direction thereof. The waterproof properties of the inverted arch box-type lining prefabricated block 1, the curved wall lining prefabricated block 2, and the arc lining prefabricated block 3 are further improved.

[0046] Further, as a specific implementation method, refer to Figure 1 The inverted arch box-type lining prefabricated block 1, the curved wall lining prefabricated block 2, and the arc-shaped lining prefabricated block 3 are respectively provided with a second overlapping protrusion 27 along one end face thereof in the longitudinal direction, and the inverted arch box-type lining prefabricated block 1, the curved wall lining prefabricated block 2, and the arc-shaped lining prefabricated block 3 are respectively provided with a second overlapping groove overlapping with the second overlapping protrusion 27 along the other end face thereof in the longitudinal direction. The longitudinal stability of the inverted arch box-type lining prefabricated block 1, the curved wall lining prefabricated block 2, and the arc-shaped lining prefabricated block 3 is enhanced.

[0047] Further, as a specific implementation method, refer to Figure 5 A maintenance crossing 28 connected to the central ditch 9 is also provided between the upper end surfaces of the two inverted arch filling prefabricated blocks 8, and a cover plate 29 is provided on the maintenance crossing 28. A maintenance crossing 28 is provided at each distance, and is not provided on each inverted arch filling prefabricated block 8.

[0048] Example 2 The present invention provides a tunnel assembly lining structure support system with a rapid laying function, referring to Figure 1 and Figure 6 On the basis of Example 1, the upper end surface of the inverted arch filling prefabricated block 8 is provided with a placement groove 13 for placing the waterway grille 12 at the port position of the shaft 10, and the waterway grille 12 is provided with drainage ports 14 distributed in a rectangular array, and the waterway grille 12 is also provided with a flippable drainage port shielding component for dynamically shielding the drainage ports 14, and the drainage port shielding component includes a shield 151 provided inside the drainage port 14, a shield initial component 16 for dynamically maintaining the shield 151 in a horizontal state for shielding, and an elastic release component 17 for keeping the shield 151 in a vertical state when drainage is required. In the absence of water, the shield 151 is in a horizontal state at the drainage port 14, so as to shield the drainage port 14, reduce the entry of foreign debris and dust into the shaft 10 to block the drainage pipe 11, and reduce the spread of odor inside the central ditch 9 to the tunnel through the shaft 10, and facilitate the assembly with the inverted arch filling prefabricated block 8.

[0049] Further, as a specific implementation method, refer to Figure 6 and Figure 7 , a plurality of the shielding plates 151 in the same row are connected by a transmission rod 152, the axial direction of the transmission rod 152 is arranged along the width direction of the water channel grille 12, the left and right ends of the transmission rod 152 are respectively connected to the left and right sides of the water channel grille 12 through the first bearing 153, and one end of the transmission rod 152 also penetrates the side of the water channel grille 12 and extends to the outside and is coaxially provided with a gear 154, and a plurality of the transmission rods 152 are arranged in sequence at equal intervals along the length direction of the water channel grille 12, that is, a plurality of the gears 154 are arranged in sequence at equal intervals along the length direction of the water channel grille 12. The rotation of the gear 154 around the axis can drive the transmission rod 152 to rotate around the axis, and the rotation of the transmission rod 152 can drive the shielding plates 151 to rotate at a certain angle, and the rotation angle of the shielding plates 151 is 0-90 degrees.

[0050] Further, as a specific implementation method, refer to Figure 8 and Fig. 9 The initial shield assembly 16 includes a first shell 161, and the upper end surface of the inverted arch filling prefabricated block 8 is also provided with a second placement groove 18 for placing the first shell 161. The length direction of the first shell 161 is arranged along the length direction of the waterway grille 12 and is arranged on a side surface of the waterway grille 12 close to the gear 154. The first shell 161 is provided with a rack 162 meshing with a plurality of the gears 154 along its length direction. The middle part of the upper end surface of the first shell 161 is provided with a second shell 163 along its length direction. The second shell 163 is provided with a movable rod 164 along its length direction. The middle part of the movable rod 164 is provided with a rack for connecting with the rack 162. The first connecting rod 165, the upper end of the second housing 163 is symmetrically provided with a fixed limit plate 167 and a dynamic limit plate 168 at the front and rear ends of the movable rod 164, and the dynamic limit plate 168 is connected to the inside of the second housing 163 through an elastic release assembly 17. The movable rod 164 is partially sleeved with a compressed first spring 169 located between the fixed limit plate 167 and the first connecting rod 165, and the movable rod 164 is partially sleeved with a compressed second spring 1610 located between the dynamic limit plate 168 and the first connecting rod 165; the first spring 169 and the second spring 1610 have the same compression amount, and the first spring 169 and the second spring 1610 are springs of the same specification. In the initial state, that is, when there is no water, the first spring 169 and the second spring 1610 are both in a semi-compressed state, the movable rod 164 is in a dynamic static state, and the shielding plate 151 is in a horizontal state to shield the drain outlet 14.

[0051] Further, as a specific implementation method, refer to Fig.10 and Fig.11 The elastic release assembly 17 includes a first cylinder body 171 arranged vertically and a second cylinder body 178 arranged horizontally. The upper end surface of the inverted arch filling prefabricated block 8 is provided with a third placement groove 19 for accommodating the first cylinder body 171. The lower end surface of the third placement groove 19 is also connected to the vertical shaft 10 with a second drainage pipe 30. The interior of the first cylinder body 171 is adapted with a first piston 172. The upper end surface of the first piston 172 is vertically upwardly provided with a second movable rod 173. The upper end portion of the second movable rod 173 passes through the upper end surface of the first cylinder body 171 and is horizontally provided with a support plate 174. The upper end surface of the support plate 174 is provided with a water absorbing member 175, and the second movable rod 173 is located at The outer part of the first cylinder body 171 is also sleeved with a third spring 176, and an air pipe 177 is connected between the lower end of the first cylinder body 171 and the second cylinder body 178. The second cylinder body 178 is arranged inside the second shell 163 and along the axial direction of the movable rod 164. The second cylinder body 178 is adapted with a second piston 179, and a third movable rod 1710 is horizontally arranged on a side of the second piston 179 away from the air pipe 177. The other end of the third movable rod 1710 passes through the end face of the second cylinder body 178 and is connected to the movable limit plate 168; the upper end face of the support plate 174 is flush with the upper end of the third placement groove 19, and the water absorbent member 175 is a sponge. When water occurs, the water-absorbing sponge 175 becomes heavier after absorbing water, thereby compressing the third spring 176, and causing the second movable rod 173 to move downward, thereby driving the first piston 172 to move downward, thereby causing the gas in the first cylinder 171 located below the first piston 172 to be pressed into the second cylinder 178 through the air pipe 177. The air pressure inside the second cylinder 178 increases, which can cause the second piston 179 to move toward the dynamic limit plate 168, and then the dynamic limit plate 168 is moved away from the air pipe 177 through the third movable rod 1710, thereby releasing the elastic force of the second spring 1610. The elastic force of the second spring 1610 is less than the elastic force of the first spring 169, thereby causing the movable rod 164 to move toward the dynamic limit plate 168, thereby driving the first connecting rod 1 65. The rack 162 moves, thereby driving the gear 154 to rotate, realizing the flipping of the shutter 151, and then with the help of the reset of the first spring 169, the shutter 151 is finally tilted to open the drain port 14, so that the tunnel water can reach the central ditch 9 through the drain port 14 and the shaft 10, and the maximum displacement of the first piston 172 just makes the shutter 151 flip to a vertical state. When the water situation ends, as the water in the sponge evaporates, the third spring 176 is reset, so that the first piston 172 moves up, and then the internal gas of the second cylinder 178 enters the first cylinder 171, so that the second piston 179 returns to its initial state, so that the second spring 1610 and the first spring 169 return to their initial states, and then the movable rod 164 and the shutter 151 return to their initial states.

[0052] Furthermore, a plurality of first guide rods 1711 are disposed between the end surface of the second cylinder 178 away from the air delivery pipe 177 and the second housing 163, the axial direction of the first guide rod 1711 is parallel to the axial direction of the movable rod 164, and a plurality of first guide holes adapted to the first guide rod 1711 are disposed on the movable stop plate 168, so as to improve the stability of the movable stop plate 168 when it moves.

[0053] Example 3 The present invention provides a tunnel assembly lining structure support system with a rapid laying function, referring to Figure 8 and Fig. 9 On the basis of Example 2, a displacement amplification component 20 is further provided in the second housing 163, and the displacement amplification component 20 includes a screw rod 201, the axial direction of the screw rod 201 is arranged along the length direction of the second housing 163, and the two ends of the screw rod 201 are respectively connected to the side of the second housing 163 through bearings, a first thread 202 is provided in the middle of the screw rod 201, and a second thread 203 and a third thread 204 are respectively provided at the two ends of the screw rod 201, a first ball nut block 205 is adapted to the first thread 202, and a second ball nut block 206 is adapted to the second thread 203 The third thread 204 is equipped with a third ball nut block 207, the end of the first connecting rod 165 away from the movable rod 164 is connected to the first ball nut block 205, the second ball nut block 206 is connected to the rack 162 through a second connecting rod 208, and the third ball nut block 207 is connected to the rack 162 through a third connecting rod 209; the first thread 202, the second thread 203, and the third thread 204 have the same thread direction, and the pitch of the first thread 202 is smaller than the pitch of the second thread 203, and the pitch of the second thread 203 is the same as the pitch of the third thread 204. When water occurs, the release of the elastic force of the second spring 1610 and the elastic force generated by the restoration of the first spring 169 to its original state cause the movable rod 164 to move toward the direction close to the dynamic limit plate 168, thereby driving the first connecting rod 165 to move toward the direction close to the dynamic limit plate 168, and then driving the first ball nut block 205 to move toward the direction close to the dynamic limit plate 168. The small displacement of the first ball nut block 205 can cause the second ball nut block 206 and the third ball nut block 207 to move a larger amount toward the direction close to the dynamic limit plate 168, thereby realizing the flipping of the baffle 151 to a vertical state. When the water condition is relatively small, the displacement amplification component 20 can be used to realize the opening of the baffle 151 at a large angle, thereby reducing the displacement of the first piston 172, that is, reducing the amount of water absorbed by the sponge, thereby improving the opening accuracy of the baffle 151.

[0054] Furthermore, a second guide rod is further provided in the second housing 163, the axial direction of the second guide rod is parallel to the axial direction of the screw rod 201, and a second guide hole adapted to the second guide rod is provided on the first ball nut block 205, the second ball nut block 206, and the third ball nut block 207, so as to improve the stability of the first ball nut block 205, the second ball nut block 206, and the third ball nut block 207 when they move.

[0055] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] The above-mentioned embodiments only express the implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A tunnel prefabricated lining structure support system with rapid laying function, characterized in that: The invention comprises an inverted arch box-shaped lining prefabricated block (1) arranged at the bottom of a tunnel, a curved wall lining prefabricated block (2) arranged at both side walls of the tunnel, and an arc-shaped lining prefabricated block (3) arranged at the top of the tunnel. The inverted arch box-shaped lining prefabricated block (1) and the curved wall lining prefabricated block (2) and the ends of the curved wall lining prefabricated block (2) and the arc-shaped lining prefabricated block (3) are respectively connected by connecting members. The connecting members comprise a concave-convex tenon connection structure (4), a bolt connection joint structure, and a spigot-and-socket joint structure (6). Adjacent inverted arch box-shaped lining prefabricated blocks (1) and adjacent curved wall lining prefabricated blocks (2) and adjacent arc-shaped lining prefabricated blocks (3) are respectively connected by a longitudinal prestressed fastening structure (7). The upper end surface of the inverted arch box-shaped lining prefabricated block (1) is symmetrically provided with an inverted arch filling prefabricated block (8). The end surfaces of the two inverted arch filling prefabricated blocks (8) close to each other are also provided with a longitudinal prestressed fastening structure (7). A central water ditch (9) is provided. A vertical shaft (10) is provided at one end of the upper end faces of the two inverted arch filling prefabricated blocks (8) that are away from each other. The bottom of the vertical shaft (10) is connected to the central water ditch (9) through a drainage pipe (11). A placement groove (13) for placing a waterway grid (12) is provided on the upper end face of the inverted arch filling prefabricated block (8) at the port position of the vertical shaft (10). The waterway grid (12) is provided with drainage ports (14) distributed in a rectangular array. The waterway grid (12) is also provided with a flippable drainage port shielding component for dynamically shielding the drainage ports (14). The drainage port shielding component comprises a shielding plate (151) provided inside the drainage port (14), a shielding plate initial component (16) for dynamically maintaining the shielding plate (151) in a horizontal state for shielding, and an elastic release component (17) for keeping the shielding plate (151) in a vertical state when drainage is required.

2. According to claim 1, a tunnel prefabricated lining structure support system with a rapid laying function is characterized in that: A plurality of the baffles (151) located in the same row are connected via a transmission rod (152); the axial direction of the transmission rod (152) is arranged along the width direction of the water channel grille (12); the left and right ends of the transmission rod (152) are respectively connected to the left and right side surfaces of the water channel grille (12) via a first bearing (153); one end of the transmission rod (152) also penetrates the side surface of the water channel grille (12) and extends to the outside and is coaxially provided with a gear (154); the plurality of transmission rods (152) are arranged in sequence at equal intervals along the length direction of the water channel grille (12); that is, the plurality of gears (154) are arranged in sequence at equal intervals along the length direction of the water channel grille (12).

3. According to claim 2, a tunnel prefabricated lining structure support system with a rapid laying function is characterized in that: The baffle initial assembly (16) comprises a first shell (161), the length direction of the first shell (161) being arranged along the length direction of the water channel grille (12) and being arranged on a side surface of the water channel grille (12) close to the gear (154), a rack (162) meshing with a plurality of the gears (154) being arranged inside the first shell (161) along its length direction, a second shell (163) being arranged at the middle of the upper end surface of the first shell (161) along its length direction, a movable rod (164) being arranged inside the second shell (163) along its length direction, a gear for engaging with the gear (162) being arranged at the middle of the movable rod (164) ) is connected to a first connecting rod (165), the upper end of the interior of the second shell (163) is located at the front and rear ends of the movable rod (164), and a fixed limit plate (167) and a movable limit plate (168) are symmetrically arranged, the movable limit plate (168) is connected to the interior of the second shell (163) through an elastic release component (17), a compressed first spring (169) is partially sleeved on the movable rod (164) between the fixed limit plate (167) and the first connecting rod (165), and a compressed second spring (1610) is partially sleeved on the movable rod (164) between the movable limit plate (168) and the first connecting rod (165).

4. According to claim 3, a tunnel prefabricated lining structure support system with a rapid laying function is characterized in that: The elastic force release assembly (17) comprises a first cylinder body (171) arranged vertically and a second cylinder body (178) arranged horizontally; the upper end surface of the inverted arch filling prefabricated block (8) is provided with a third placement groove (19) for accommodating the first cylinder body (171); the first cylinder body (171) is adapted to be provided with a first piston (172); the upper end surface of the first piston (172) is provided with a second movable rod (173) vertically upward; the upper end portion of the second movable rod (173) passes through the upper end surface of the first cylinder body (171) and is horizontally provided with a support plate (174); the upper end surface of the support plate (174) is provided with a water absorbing member (175); and the second movable rod (173) ) The portion located outside the first cylinder body (171) is also sleeved with a third spring (176), an air pipe (177) is connected between the lower end of the first cylinder body (171) and the second cylinder body (178), the second cylinder body (178) is arranged inside the second shell (163) and along the axial direction of the movable rod (164), a second piston (179) is adapted inside the second cylinder body (178), a third movable rod (1710) is horizontally arranged on a side of the second piston (179) away from the air pipe (177), the other end of the third movable rod (1710) passes through the end face of the second cylinder body (178) and is connected to the movable limit plate (168).

5. According to claim 1, a tunnel prefabricated lining structure support system with a rapid laying function is characterized in that: The mortise and tenon connection structure (4) comprises a first mortise and tenon joint (41) and a first groove (42) which are longitudinally arranged and mortised with each other, and a second mortise and tenon joint (43) and a second groove (44) which are mortised with each other, wherein a plurality of the first mortise and tenons (41) are evenly arranged at the left and right ends of the upper end surface of the inverted arch box-shaped prefabricated lining block (1), a plurality of the first grooves (42) are evenly arranged at the lower ends of the two curved wall prefabricated lining blocks (2), a plurality of the second mortise and tenons (43) are evenly arranged at the two ends of the arc-shaped prefabricated lining block (3), and a plurality of the second grooves (44) are evenly arranged at the upper ends of the two curved wall prefabricated lining blocks (2).

6. According to claim 1, a tunnel prefabricated lining structure support system with a rapid laying function is characterized in that: The bolt connection joint structure comprises a first bolt connection joint (51) and a second bolt connection joint which are longitudinally arranged and connected to each other, and a third bolt connection joint and a fourth bolt connection joint which are connected to each other, wherein a plurality of the first bolt connection joints (51) are evenly arranged at the upper ends of the left and right side surfaces of the inverted arch box-type lining prefabricated block (1), and a plurality of the second bolt connection joints are evenly arranged at the lower ends of the outer side surfaces of the two curved wall lining prefabricated blocks (2), and the first bolt connection joints (51) and the second bolt connection joints are connected by a plurality of fastening bolts, a plurality of the third bolt connection joints are evenly arranged at the upper ends of the outer side surfaces of the two curved wall lining prefabricated blocks (2), and a plurality of the fourth bolt connection joints are evenly arranged at the two ends of the outer side surfaces of the arc-shaped lining prefabricated block (3), and the third bolt connection joints and the fourth bolt connection joints are connected by a plurality of fastening bolts.

7. According to claim 1, a tunnel prefabricated lining structure support system with a rapid laying function is characterized in that: The socket-and-spigot joint structure (6) comprises first oblique bolts (61), second oblique bolts (62) arranged in a longitudinally staggered manner, and third oblique bolts (63), and fourth oblique bolts (64) arranged in a longitudinally staggered manner. The inner walls and end faces of the inverted arch box-type lining prefabricated block (1), the curved wall lining prefabricated block (2), and the arc-shaped lining prefabricated block (3) are all provided with oblique bolt holes. The oblique bolt holes on the inner walls of the inverted arch box-type lining prefabricated block (1) and the oblique bolt holes on the lower end faces of the curved wall lining prefabricated block (2) are communicated with each other for filling the first oblique bolts (61). The oblique bolt hole at the lower end of the inner side surface of the wall lining prefabricated block (2) and the oblique bolt hole at the upper end surface of the inverted arch box-type lining prefabricated block (1) are communicated with each other for filling the second oblique bolt (62); the oblique bolt hole at the upper end of the inner side surface of the curved wall lining prefabricated block (2) and the oblique bolt holes at both end surfaces of the arc-shaped lining prefabricated block (3) are communicated with each other for filling the third oblique bolt (63); the oblique bolt holes at both ends of the inner side surface of the arc-shaped lining prefabricated block (3) and the oblique bolt holes at the upper end surface of the curved wall lining prefabricated block (2) are communicated with each other for filling the fourth oblique bolt (64).

8. According to claim 1, a tunnel prefabricated lining structure support system with a rapid laying function is characterized in that: The longitudinal prestressed fastening structure (7) comprises longitudinal reserved holes (71) penetrating the longitudinal end surfaces of the inverted arch box-type lining prefabricated block (1), the curved wall lining prefabricated block (2), and the arc-shaped lining prefabricated block (3); a plurality of corresponding longitudinal reserved holes (71) are fastened by means of prestressed steel rods (72) and anchors (73); the inverted arch box-type lining prefabricated block (1), the curved wall lining prefabricated block (2), and the arc-shaped lining prefabricated block (3) are provided with first overlapping protrusions (25) in communication with the longitudinal reserved holes (71) at one longitudinal end thereof; and the inverted arch box-type lining prefabricated block (1), the curved wall lining prefabricated block (2), and the arc-shaped lining prefabricated block (3) are provided with first overlapping grooves (26) in communication with the longitudinal reserved holes (71) at the other longitudinal end thereof.

9. The tunnel prefabricated lining structure support system with rapid laying function according to claim 1, characterized in that: The inner and outer sides of the inverted arch box-shaped lining prefabricated block (1), the curved wall lining prefabricated block (2), and the arc-shaped lining prefabricated block (3) are respectively provided with arc-shaped waterproof layers (21).

10. The tunnel prefabricated lining structure support system with rapid laying function according to claim 5, characterized in that: The inverted arch box-shaped lining prefabricated block (1) and the curved wall lining prefabricated block (2) are also provided with a plurality of first longitudinal waterproof strips (22) at the mortise and tenon positions, the curved wall lining prefabricated block (2) and the arc-shaped lining prefabricated block (3) are also provided with a plurality of second longitudinal waterproof strips (23) at the mortise and tenon positions, and the inverted arch box-shaped lining prefabricated block (1), the curved wall lining prefabricated block (2) and the arc-shaped lining prefabricated block (3) are respectively provided with arc-shaped waterproof strips (24) at both end surfaces along the longitudinal direction thereof.

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