Modularized steel ring for tunnel reinforcement and rapid installation method

Abstract

The invention relates to the technical field of tunnel engineering, in particular to a modular steel ring for tunnel reinforcement and a rapid installation method. The device comprises a plurality of arc-shaped steel plates, mounting grooves A are formed in the inner walls of the arc-shaped steel plates, limiting grooves A are formed in the inner walls, close to the mounting grooves A, of the arc-shaped steel plates, the bottom ends of the limiting grooves A are fixedly connected with a plurality of supporting springs, and clamping plates are fixedly connected between the ends of the supporting springs; the end-to-end splicing mode is adopted, the outer side of the end of one arc-shaped steel plate is attached to the outer side of the end of the other arc-shaped steel plate in sequence, the arc-shaped steel plates press clamping plates to move downwards to the inner sides of limiting grooves A, then openings in the ends of arc-shaped sliding grooves A are exposed, and then the arc-shaped sliding grooves A are fixed through the elastic force of extension springs. The arc-shaped reinforcing rods can be pushed by the limiting blocks to be connected with the connecting holes of the adjacent arc-shaped steel plates in an inserted mode, and therefore assembling and splicing of the arc-shaped steel plates are completed.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel engineering, in particular to a modular steel ring for tunnel reinforcement and a rapid installation method. Background Art

[0002] At present, during the construction or operation of tunnels, since the geological environment in which the tunnels are located is often complex and changeable, there may be adverse geological conditions such as weak surrounding rocks, fault fracture zones, etc. These adverse geological conditions may lead to insufficient stability of the tunnel structure. For some areas with weak surrounding rocks or deformation, steel rings are needed to provide additional support to limit the deformation of the tunnel lining, enhance the stability of the overall tunnel structure, and prevent the risk of tunnel collapse.

[0003] At present, steel rings used for tunnel reinforcement are usually divided into several parts in the tunnel during use, transported to the installation location section by section, assembled and bolted on site, and finally fixed to the tunnel lining surface. However, due to the threaded connection method, during the operation, it is usually necessary to ensure that the specifications, strength, tightening torque, etc. of the bolts meet the design requirements, and it is necessary to ensure that each bolt is tightened evenly to ensure the reliability of the steel ring connection, which makes the operation more cumbersome, resulting in a slower installation and splicing process of the steel ring, which in turn affects the overall installation progress of the steel ring. Summary of the invention

[0004] The object of the present invention is to provide a modular tunnel reinforcement steel ring and a quick installation method and a use method to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, one of the purposes of the present invention is to provide a modular steel ring for tunnel reinforcement, comprising a plurality of arc-shaped steel plates, the inner walls of the plurality of arc-shaped steel plates are provided with mounting grooves A, a limiting groove A is provided on the inner wall of the arc-shaped steel plate on one side close to the mounting groove A, a plurality of supporting springs are fixedly connected to the bottom end of the limiting groove A, a clamping plate is fixedly connected between the ends of the plurality of supporting springs, and both ends of the clamping plate are slidably connected to the inner wall of the limiting groove A, a plurality of arc-shaped sliding grooves A are provided on the inner wall of the arc-shaped steel plate on one side close to the clamping plate, and a plurality of arc-shaped sliding grooves A are provided on the inner wall of the arc-shaped steel plate An arc-shaped groove B is provided on the inner wall of the arc-shaped steel plate at one end of the slide groove A, and one side of the arc-shaped groove B is connected to the arc-shaped groove C. A tension spring is fixedly connected to the inner end of the arc-shaped groove B, and one end of the tension spring is fixedly connected to a limit block, and the outer side of the limit block is slidably connected to the inner side of the arc-shaped groove B. An arc-shaped reinforcement rod is fixedly connected to the end of the limit block, and the outer side of the arc-shaped reinforcement rod is slidably connected to the inner side of the arc-shaped groove A. The other end of the limit block is fixedly connected to an arc rod, and the outer side of the arc rod is slidably connected to the inner side of the arc-shaped groove C.

[0006] As a further improvement of the technical solution, a plurality of limiting holes are opened at one end of the arc-shaped steel plate, a plurality of connecting holes are opened on the inner wall of one end of the arc-shaped steel plate close to the limiting holes, a plurality of clamping columns are fixedly installed at the other end of the arc-shaped steel plate, and the outer sides of the plurality of clamping columns correspond to the inner sides of the plurality of limiting holes, and a limiting groove A is opened on the inner wall of the arc-shaped steel plate close to the inner side of the plurality of limiting holes.

[0007] As a further improvement of the technical solution, one side of the arc-shaped steel plate is fixedly connected to a limiting slide, and the interior of the limiting slide is fixedly connected to a plurality of connecting seats on one side of the arc-shaped steel plate, and one end of the plurality of connecting seats is fixedly connected to a bevel block, and the inner wall of the connecting seat is provided with a plurality of slots A, and the inner side of the connecting seat is slidably connected to a connecting column, and the outer wall of the connecting column is slidably connected to the inner wall of the arc-shaped steel plate, and one end of the connecting column is fixedly connected to a plurality of resist blocks, and the outer sides of the plurality of resist blocks are slidably connected to the inner sides of the plurality of slots A.

[0008] As a further improvement of the technical solution, an arc-shaped slide plate is fixedly connected between the ends of the plurality of connecting columns, a plurality of elastic telescopic rods are fixedly connected to the outer side of the arc-shaped slide plate, and a push plate is fixedly connected to the top end of the elastic telescopic rod.

[0009] As a further improvement of the present technical solution, a limited slide A is provided on the inner wall of the arc-shaped steel plate, and the inner side of the limited slide A is slidably connected to the outer side of the elastic telescopic rod, two arc grooves are symmetrically provided on the inner wall of the mounting groove A below the limited slide A, and an arc plate is slidably connected between the inner sides of the two arc grooves, and one side of the arc plate is fixedly connected to the ends of multiple arc rods, a limited slide B is provided on the inner side of the arc plate, and the inner side of the limited slide B is slidably connected to the outer side of the elastic telescopic rod.

[0010] As a further improvement of the technical solution, a connecting plate is fixedly connected to the outer side of the arc-shaped steel plate, a stop block is provided at one end of the connecting plate, and the outer side of the stop block is fixedly connected to the outer side of the arc-shaped steel plate, the outer side of the connecting plate is slidably connected to a limiting slide, and the outer edge of the limiting slide corresponds to the inner side of the limiting slide.

[0011] As a further improvement of the present technical solution, a plurality of sockets are fixedly connected to one side of the connecting plate, two pairs of limit grooves B are symmetrically opened on the inner walls of the plurality of sockets, and a clamping block is slidably connected between the inner sides of every two limit grooves B, one end of the clamping block is fixedly connected to a compression spring, and the end of the compression spring is fixedly connected to the inner side of the socket.

[0012] As a further improvement of the technical solution, baffles are fixedly connected to one side of both ends of the connecting plate, and the outer sides of the baffles are in contact with the outer sides of the limiting slide.

[0013] As a further improvement of the technical solution, two mounting holes are symmetrically opened on the inner wall of the arc-shaped steel plate on one side of the limiting slide, and the bottom ends of the two mounting holes are fixedly connected to memory springs, and the ends of the memory springs are fixedly connected to the outer side of the limiting slide.

[0014] The second object of the present invention is to provide a method for installing a modular tunnel reinforcement steel ring, comprising a modular tunnel reinforcement steel ring as described in any one of the above, comprising the following method steps: S1. First, according to the construction conditions of the tunnel, determine the number of arc-shaped steel plates to be used and the number of layers of annular multi-layer splicing and installation between multiple arc-shaped steel plates; S2. Subsequently, by adopting a head-to-tail splicing method, between the multiple arc-shaped steel plates, the outer side of one end of the arc-shaped steel plate is sequentially fitted with the outer side of the end of another arc-shaped steel plate, and the arc-shaped steel plate is pressed on the clamping plate to move the arc-shaped steel plate down to the inner side of the limit groove A, and then the opening of the end of the arc-shaped slide groove A will be exposed, and then the elastic force of the stretch spring is used to enable the arc-shaped reinforcement rod to be plugged into the connection hole of the adjacent arc-shaped steel plate under the push of the limit block, thereby completing the assembly and splicing between the arc-shaped steel plates, and then the remaining arc-shaped steel plates are spliced ​​in a head-to-tail connection method until they are formed into a ring, thereby completing the annular single-layer splicing of multiple arc-shaped steel plates; S3. Subsequently, among the multiple arc-shaped steel plates that have completed the annular single-layer splicing, the outer side of the limiting slide of one of the arc-shaped steel plates is sequentially connected with the inner side of the limiting slide of another arc-shaped steel plate by sliding, so as to complete the layer connection between the multiple arc-shaped steel plates; S4. Then, the connecting plate is pushed by the arc steel plate in turn, so that the connecting plate synchronously pushes the clamping seat to cover the bevel block, so that the inclined surfaces of the two clamping blocks conflict with the inclined surfaces of the bevel block, and then the two clamping blocks are forced to move relatively along the inner side of the limit groove B. Then, when the clamping seat completely covers the bevel block, the clamping block will be separated from the bevel block, and then the tension of the two compression springs will push the outer sides of the two clamping blocks to clamp the outer side of the connecting seat, and at the same time, the cross section of each clamping block will fit with the cross section of the bevel block, thereby completing the fixation of the layer connection between the multiple arc steel plates.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. A modular steel ring for tunnel reinforcement and a quick installation method adopt a head-to-tail splicing method. Between multiple arc-shaped steel plates 1, the outer side of the end of one arc-shaped steel plate 1 is sequentially fitted with the outer side of the end of another arc-shaped steel plate 1. The arc-shaped steel plate 1 applies pressure to the clamping plate 82 to move the arc-shaped steel plate down to the inner side of the limit groove A8, and then the opening at the end of the arc-shaped slide groove A72 is exposed. Then, through the elastic force of the tension spring 73, the arc-shaped reinforcement rod 75 can be plugged into the connecting hole 104 of the adjacent arc-shaped steel plate 1 under the push of the limit block 74, so as to complete the assembly and splicing between the arc-shaped steel plates 1. Then, the remaining arc-shaped steel plates 1 are spliced ​​in a head-to-tail connection mode until they are formed into a ring. The annular single-layer splicing of multiple arc-shaped steel plates 1 can be completed, and then the effect of quick installation between multiple arc-shaped steel plates can be achieved through a convenient operation method.

[0016] 2. A modular tunnel reinforcement steel ring and a quick installation method, by pushing a push plate, the push plate drives the arc-shaped slide plate to move synchronously through the elastic telescopic rod. When the elastic telescopic rod moves, it interferes with the limit slide B, so that the arc plate can synchronously drive multiple arc rods to move. Then, when the arc rod moves, it drives the arc reinforcement rod to retract to the inner side of the arc slide groove A through the limit block. When the arc slide plate moves, it pushes the block through the connecting column to interfere with the inclined surface of the card block, so that the cross section of the card block is separated from the cross section of the bevel block, and then the card block can be separated from the bevel block. In this way, the connection restrictions between multiple arc steel plates can be eliminated by simply pushing the push plate, thereby making the disassembly process simple and quick, and reducing the time cost of manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of a circular single-layer assembly structure of multiple groups of arc-shaped steel plates of the present invention; Figure 2 It is a schematic diagram of the structure of the annular multi-layer assembly of multiple groups of arc-shaped steel plates of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the arc-shaped steel plate of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the curved steel plate of the present invention from another perspective; Figure 5 It is a structural schematic diagram of the connection method between the connecting plate and the arc-shaped steel plate of the present invention; Figure 6 It is a schematic diagram of the internal structure distribution of the limit slide of the present invention; Figure 7 It is a schematic diagram of the internal structure of the arc-shaped steel plate of the present invention; Figure 8 It is a schematic diagram of the internal structure of the arc-shaped steel plate of the present invention; Fig. 9It is a schematic diagram of the structure distribution of the limiting mechanism of the present invention; Fig.10 This is a schematic diagram of the single-layer assembly structure of the arc-shaped steel plate of the present invention; Fig.11 It is a structural schematic diagram of the connection method between the connecting plate and the limiting slide of the present invention; Fig.12 It is a schematic diagram of the compression clamping structure of the present invention; Fig.13 It is a schematic diagram of the clamping structure of the present invention.

[0018] The meaning of each number in the figure is: 1. Arc-shaped steel plate; 101. Limiting hole; 102. Clamping column; 103. Block; 104. Connecting hole; 2. Connecting plate; 21. Limiting slide; 22. Block; 31. Clamping seat; 32. Limiting slot B; 33. Block; 34. Compression spring; 4. Limiting slide; 5. Connecting seat; 51. Bevel block; 52. Clamping slot A; 53. Connecting column; 531. Arc-shaped slide; 532. Elastic telescopic rod; 533 , push plate; 54, stop block; 6, mounting groove A; 61, arc groove; 62, limit slide A; 7, arc slide B; 71, arc slide C; 72, arc slide A; 73, tension spring; 74, limit block; 75, arc reinforcement rod; 76, arc rod; 8, limit groove A; 81, support spring; 82, clamping plate; 9, arc plate; 91, limit slide B; 10, mounting hole; 11, memory spring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0022] Example 1 See also Figure 1 , Figure 5 , Fig. 9 and Fig.10 As shown, one of the purposes of this embodiment is to provide a modular steel ring for tunnel reinforcement, including multiple arc-shaped steel plates 1, the inner walls of the multiple arc-shaped steel plates 1 are all provided with installation grooves A6, and a limiting groove A8 is provided on the inner wall of the arc-shaped steel plate 1 near the side of the installation groove A6, and a plurality of support springs 81 are fixedly connected to the bottom end of the limiting groove A8, and a clamping plate 82 is fixedly connected between the ends of the multiple support springs 81, and the two ends of the clamping plate 82 are slidably connected to the inner wall of the limiting groove A8, and a plurality of arc-shaped sliding grooves A72 are provided on the inner wall of the arc-shaped steel plate 1 near the side of the clamping plate 82, and a plurality of arc-shaped sliding grooves A72 are provided on one side of the multiple arc-shaped sliding grooves A72. The inner wall of the end arc-shaped steel plate 1 is provided with an arc-shaped slide groove B7, one side of the arc-shaped slide groove B7 is connected to the arc-shaped slide groove C71, one end of the inner side of the arc-shaped slide groove B7 is fixedly connected with a tension spring 73, one end of the tension spring 73 is fixedly connected with a limit block 74, and the outer side of the limit block 74 is slidably connected to the inner side of the arc-shaped slide groove B7, the end of the limit block 74 is fixedly connected with an arc-shaped reinforcement rod 75, the outer side of the arc-shaped reinforcement rod 75 is slidably connected to the inner side of the arc-shaped slide groove A72, the other end of the limit block 74 is fixedly connected with an arc-shaped rod 76, and the outer side of the arc-shaped rod 76 is slidably connected to the inner side of the arc-shaped slide groove C71; A plurality of limiting holes 101 are provided at one end of the arc-shaped steel plate 1, a plurality of connecting holes 104 are provided on the inner wall of one end of the arc-shaped steel plate 1 close to the limiting holes 101, a plurality of clamping columns 102 are fixedly installed at the other end of the arc-shaped steel plate 1, and the outer sides of the plurality of clamping columns 102 correspond to the inner sides of the plurality of limiting holes 101, and a limiting groove A8 is provided on the inner wall of the arc-shaped steel plate 1 close to the inner sides of the plurality of limiting holes 101.

[0023] In this embodiment, first, when a single arc-shaped steel plate 1 is not installed and spliced, the multiple arc-shaped reinforcement rods 75 are in the initial state, and the end of the arc-shaped reinforcement rod 75 is located on the inner side of the arc-shaped slide groove A72, and at the same time, the tension spring 73 is in a state of force compression inside the arc-shaped slide groove B7, and the clamping plate 82 is in the initial state, supported by the support spring 81, so that the position of the clamping plate 82 is located at the end of the arc-shaped slide groove A72. At this time, the outer side of the clamping plate 82 conflicts with the end of the arc-shaped reinforcement rod 75, thereby blocking the end of the arc-shaped reinforcement rod 75 to prevent the end of the arc-shaped reinforcement rod 75 from moving to the outside through the opening of the arc-shaped slide groove A72; Subsequently, when it is necessary to install and splice multiple curved steel plates 1 into a single-layer annular state, the clamping column 102 at the head end of one of the curved steel plates 1 is inserted and pressed down along the limiting hole 101 at the tail end of the other curved steel plate 1 by adopting a head-to-tail splicing method, wherein the clamping column 102 is calibrated and limited by the limiting hole 101 to ensure that when the outer side of the end of one of the curved steel plates 1 is pressed down to completely fit with the outer side of the end of the other curved steel plate 1, the port of the connecting hole 104 and the curved slide groove A72 are The ports can be in an arc-shaped relative state, and the arc-shaped steel plate 1 contacts the card plate 82 when pressed down, thereby pushing the card plate 82 to move down along the inner side of the limiting groove A8 synchronously, and the card plate 82 will cause the support spring 81 to be compressed while moving downward, and then when the card plate 82 is completely moved down to the inner side of the limiting groove A8 under the push of the arc-shaped steel plate, the opening at the end of the arc-shaped slide groove A72 will be exposed, and at this time, the arc-shaped reinforcement rod 75 will lose the obstruction of the card plate 82, and then through the stretching spring The elastic force of the spring 73 pushes the limit block 74 to slide along the inner side of the arc-shaped slide groove B7, and the limit block 74 will simultaneously push the arc-shaped reinforcement rod 75 to move, and the end of the connection hole 104 and the end of the arc-shaped slide groove A72 are in a relative state, so that the arc-shaped reinforcement rod 75 can smoothly enter the inner side of the connection hole 104 through the end of the arc-shaped slide groove A72, thereby completing the assembly and splicing of the two arc-shaped steel plates 1, and then the remaining arc-shaped steel plates 1 are moved along the spliced ​​arc-shaped steel plates 1, and continue to be first The ends are connected to each other in a tail-to-tail manner until they form a ring, thereby completing the single-layer ring splicing work between the multiple arc-shaped steel plates 1, and after the single-layer ring splicing work between the multiple arc-shaped steel plates 1 is completed, the tension of the support spring 81 pushes the outer side of the clamping plate 82 to squeeze the adjacent outer sides between the two arc-shaped steel plates 1, and the arc-shaped slide groove A72 of the reinforcement rod is plugged into the connecting hole 104, thereby strengthening the stability of the multiple arc-shaped steel plates 1 after the single-layer ring assembly is completed.

[0024] In this embodiment, Figure 3 and Figure 4As shown, the outer side of the arc-shaped steel plate 1 is fixedly connected with a connecting plate 2, one end of the connecting plate 2 is provided with a stopper 103, and the outer side of the stopper 103 is fixedly connected to the outer side of the arc-shaped steel plate 1, and the outer side of the connecting plate 2 is slidably connected with a limiting slide 21, and the outer edge of the limiting slide 21 corresponds to the inner side of the limiting slide 4; one side of the limiting slide 21 has two mounting holes 10 symmetrically opened on the inner wall of the arc-shaped steel plate 1, and the bottom ends of the two mounting holes 10 are fixedly connected with memory springs 11, and the ends of the memory springs 11 are fixedly connected with the outer side of the limiting slide 21; one side of the two ends of the connecting plate 2 is fixedly connected with a baffle 22, and the outer side of the baffle 22 is in contact with the outer side of the limiting slide 21.

[0025] In the present embodiment, the memory spring 11 elastically supports the limit slide 21 and the baffle 22 blocks the limit slide 21, so that the outer side of the limit slide 21 can always fit with the outer side of the baffle 22 without the influence of external force, thereby playing the role of elastic limiting and auxiliary calibration of the limit slide 21, so that when the outer end of the limit slide 21 enters the inner side of the limit slide 4 through the port of the limit slide 4 after calibration for sliding connection, the limit slide 21 will not move easily along the outer side of the connecting plate 2, thereby reducing the difficulty of the calibration connection between the limit slide 21 and the limit slide 4, and then when the outer side of the limit slide 21 is completely fitted with the inner side of the limit slide 4, the inner side of the holder 31 will correspond to the end of the bevel block 51.

[0026] In this embodiment, Figure 2 , Fig.11 , Fig.12 and Fig.13 As shown, one side of the arc-shaped steel plate 1 is fixedly connected to a limited slide seat 4, and the interior of the limited slide seat 4 is fixedly connected to a plurality of connecting seats 5 on one side of the arc-shaped steel plate 1, and one end of the plurality of connecting seats 5 is fixedly connected to a bevel block 51, and the inner wall of the connecting seat 5 is provided with a plurality of slots A52, and the inner side of the connecting seat 5 is slidably connected to a connecting column 53, and the outer wall of the connecting column 53 is slidably connected to the inner wall of the arc-shaped steel plate 1, and one end of the connecting column 53 is fixedly connected to a plurality of abutments 54, and the outer sides of the plurality of abutments 54 are slidably connected to the inner sides of the plurality of slots A52; one side of the connecting plate 2 is fixedly connected to a plurality of clamping seats 31, and the inner walls of the plurality of clamping seats 31 are symmetrically provided with two pairs of limit slots B32, and a clamping block 33 is slidably connected between the inner sides of each two limit slots B32, and one end of the clamping block 33 is fixedly connected to a compression spring 34, and the end of the compression spring 34 is fixedly connected to the inner side of the clamping seat 31.

[0027] In this embodiment, when the outer side of the limiting slide 21 is completely fitted with the limiting slide 4, the arc-shaped steel plate 1 pushes the connecting plate 2 to slide along the inner side of the limiting slide 21, so that the connecting plate 2 synchronously pushes the clamping seat 31 to cover the bevel block 51. When the clamping seat 31 covers the bevel block 51, the inclined surfaces of the two clamping blocks 33 on the inner side of the clamping seat 31 conflict with the inclined surfaces of the bevel block 51, and then the two clamping blocks 33 will be forced to move relatively along the inner side of the limiting groove B32 under the obstruction of the bevel block 51. , and at the same time, the two compression springs 34 will be compressed, and then when the holder 31 completely covers the bevel block 51, the block 33 will be separated from the bevel block 51, and then the tension of the two compression springs 34 will push the outer sides of the two blocks 33 to clamp the outer side of the connecting seat 5, and at this time, the cross-section of the two blocks 33 will fit the cross-section of the bevel block 51, thereby preventing the two blocks 33 from being separated from the bevel block 51, thereby completing the multi-layer connection between the arc-shaped steel plates 1.

[0028] In this embodiment, Figure 6 , Figure 7 and Figure 8 As shown, an arc-shaped slide 531 is fixedly connected between the ends of multiple connecting columns 53, and multiple elastic telescopic rods 532 are fixedly connected to the outer side of the arc-shaped slide 531, and a push plate 533 is fixedly connected to the top of the elastic telescopic rod 532; a limited slide A62 is provided on the inner wall of the arc-shaped steel plate 1, and the inner side of the limited slide A62 is slidably connected to the outer side of the elastic telescopic rod 532, and two arc grooves 61 are symmetrically provided on the inner wall of the mounting groove A6 below the limited slide A62, and an arc plate 9 is slidably connected between the inner sides of the two arc grooves 61, and one side of the arc plate 9 is fixedly connected to the ends of multiple arc rods 76, and a limited slide B91 is provided on the inner side of the arc plate 9, and the inner side of the limited slide B91 is slidably connected to the outer side of the elastic telescopic rod 532.

[0029] In the present embodiment, the pressure applied to the push plate 533 by the elastic telescopic rod 532 is firstly increased to increase the friction between the push plate 533 and the arc-shaped steel plate 1, so as to ensure that the push plate 533 can be protected and fixed in the above position after being moved. When the arc-shaped steel plate 1 needs to be repaired or replaced, firstly, the push plate 533 is disengaged from the arc-shaped steel plate 1 by stretching it, and then the push plate 533 is pushed, so that the push plate 533 drives the arc-shaped slide plate 531 to move synchronously through the elastic telescopic rod 532. When the elastic telescopic rod 532 moves, the outer side of the elastic telescopic rod 532 is in contact with the limiting slideway B91, so that the arc plate 9 can adaptively move along the inner side of the arc groove 61. When the arc groove 61 moves, it will synchronously drive multiple arc rods 76 to move. Then, when the arc rod 76 moves, it will pass through The limit block 74 drives the arc-shaped reinforcement rod 75 to disengage from the inner side of the connecting hole 104 plugged therein and then retract to the inner side of the arc-shaped slide groove A72. Secondly, when the arc-shaped slide plate 531 moves, the arc-shaped slide plate 531 will push the stop block 54 to slide on the inner side of the card groove A52 through the connecting column 53. When moving, the stop block 54 will contact with the inclined surface of the card block 33, so that the cross section of the card block 33 can be separated from the cross section of the bevel block 51 under the contact of the stop block 54, and then the card block 33 and the bevel block 51 can be separated by pulling the connecting plate 2, thereby completing the disassembly work between the multiple arc-shaped steel plates 1, and then the connection restriction between the multiple arc-shaped steel plates 1 can be eliminated by the simple operation of pushing the push plate 533, thereby making the disassembly process simple and quick, and reducing the time cost of manual operation.

[0030] The second purpose of this embodiment is to provide a method for installing a modular tunnel reinforcement steel ring, including any one of the above modular tunnel reinforcement steel rings, including the following method steps: S1. First, according to the construction conditions of the tunnel, determine the number of arc-shaped steel plates 1 required to be used and the number of layers of annular multi-layer annular splicing and installation between multiple arc-shaped steel plates 1; S2. Subsequently, by adopting a head-to-tail splicing method, between the multiple arc-shaped steel plates 1, the outer side of the end of one arc-shaped steel plate 1 is sequentially fitted with the outer side of the end of another arc-shaped steel plate 1, and the arc-shaped steel plate 1 is pressed on the clamping plate 82 to move the arc-shaped steel plate down to the inner side of the limit groove A8, and then the opening at the end of the arc-shaped slide groove A72 will be exposed, and then the elastic force of the tension spring 73 is used to enable the arc-shaped reinforcement rod 75 to be plugged into the connecting hole 104 of the adjacent arc-shaped steel plate 1 under the push of the limit block 74, so as to complete the assembly and splicing between the arc-shaped steel plates 1, and then the remaining arc-shaped steel plates 1 are spliced ​​in a head-to-tail connection method until they are formed into a ring shape, thereby completing the annular single-layer splicing of multiple arc-shaped steel plates 1; S3, then, among the multiple arc-shaped steel plates 1 that have completed the annular single-layer splicing, the outer side of the limiting slide 21 of one of the arc-shaped steel plates 1 is sequentially connected with the inner side of the limiting slide 4 of another arc-shaped steel plate 1 by sliding, so as to complete the layer connection between the multiple arc-shaped steel plates 1; S4. Then, the connecting plate 2 is pushed by the arc steel plate 1 in turn, so that the connecting plate 2 synchronously pushes the holder 31 to cover the bevel block 51, so that the inclined surfaces of the two blocks 33 conflict with the inclined surfaces of the bevel block 51, and then the two blocks 33 are forced to move relatively along the inner side of the limit groove B32. Then, when the holder 31 completely covers the bevel block 51, the block 33 will be separated from the bevel block 51, and then the tension of the two compression springs 34 will push the outer sides of the two blocks 33 to clamp the outer side of the connecting seat 5, and at the same time, the cross section of each block 33 will fit with the cross section of the bevel block 51, thereby completing the fixation of the layer connection between the multiple arc steel plates 1.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A modular steel ring for tunnel reinforcement, characterized in that: The invention comprises a plurality of arc-shaped steel plates (1), the inner walls of the plurality of arc-shaped steel plates (1) are all provided with mounting grooves A (6), a limiting groove A (8) is provided on the inner wall of the arc-shaped steel plate (1) on a side close to the mounting grooves A (6), a plurality of supporting springs (81) are fixedly connected to the bottom ends of the limiting grooves A (8), a clamping plate (82) is fixedly connected between the ends of the plurality of supporting springs (81), and both ends of the clamping plate (82) are slidably connected to the inner wall of the limiting grooves A (8), a plurality of arc-shaped sliding grooves A (72) are provided on the inner wall of the arc-shaped steel plate (1) on a side close to the clamping plate (82), and an arc-shaped sliding groove is provided on the inner wall of the arc-shaped steel plate (1) at one end of the plurality of arc-shaped sliding grooves A (72). A slot B (7), one side of the arc-shaped slide slot B (7) is connected to the arc-shaped slide slot C (71), one end of the inner side of the arc-shaped slide slot B (7) is fixedly connected to a tension spring (73), one end of the tension spring (73) is fixedly connected to a limit block (74), and the outer side of the limit block (74) is slidably connected to the inner side of the arc-shaped slide slot B (7), the end of the limit block (74) is fixedly connected to an arc-shaped reinforcement rod (75), the outer side of the arc-shaped reinforcement rod (75) is slidably connected to the inner side of the arc-shaped slide slot A (72), and the other end of the limit block (74) is fixedly connected to an arc-shaped rod (76), and the outer side of the arc-shaped rod (76) is slidably connected to the inner side of the arc-shaped slide slot C (71).

2. The modular tunnel reinforcement steel ring according to claim 1, characterized in that: A plurality of limiting holes (101) are provided at one end of the arc-shaped steel plate (1), a plurality of connecting holes (104) are provided on the inner wall of one end of the arc-shaped steel plate (1) close to the limiting holes (101), a plurality of clamping columns (102) are fixedly mounted on the other end of the arc-shaped steel plate (1), the outer sides of the plurality of clamping columns (102) correspond to the inner sides of the plurality of limiting holes (101), and a limiting groove A (8) is provided on the inner wall of the arc-shaped steel plate (1) close to the inner sides of the plurality of limiting holes (101).

3. The modular steel ring for tunnel reinforcement according to claim 1, characterized in that: One side of the arc-shaped steel plate (1) is fixedly connected to a limit slide (4), and a plurality of connection seats (5) are fixedly connected inside the limit slide (4) on one side of the arc-shaped steel plate (1), and one end of each of the connection seats (5) is fixedly connected to a bevel block (51), and the inner wall of each of the connection seats (5) is provided with a plurality of slots A (52), and the inner side of each of the connection seats (5) is slidably connected to a connection column (53), and the outer wall of each of the connection columns (53) is slidably connected to the inner wall of the arc-shaped steel plate (1), and one end of each of the connection columns (53) is fixedly connected to a plurality of stop blocks (54), and the outer sides of each of the stop blocks (54) are slidably connected to the inner sides of the plurality of slots A (52).

4. The modular steel ring for tunnel reinforcement according to claim 3, characterized in that: An arc-shaped slide plate (531) is fixedly connected between the ends of the plurality of connecting columns (53), a plurality of elastic telescopic rods (532) are fixedly connected to the outer side of the arc-shaped slide plate (531), and a push plate (533) is fixedly connected to the top end of the elastic telescopic rod (532).

5. The modular steel ring for tunnel reinforcement according to claim 1, characterized in that: The inner wall of the arc-shaped steel plate (1) is provided with a limit slideway A (62), and the inner side of the limit slideway A (62) is slidably connected to the outer side of the elastic telescopic rod (532); two arc grooves (61) are symmetrically provided on the inner wall of the mounting groove A (6) below the limit slideway A (62); an arc plate (9) is slidably connected between the inner sides of the two arc grooves (61); one side of the arc plate (9) is fixedly connected to the ends of a plurality of arc rods (76); a limit slideway B (91) is provided on the inner side of the arc plate (9), and the inner side of the limit slideway B (91) is slidably connected to the outer side of the elastic telescopic rod (532).

6. The modular steel ring for tunnel reinforcement according to claim 1, characterized in that: The outer side of the arc-shaped steel plate (1) is fixedly connected to a connecting plate (2), one end of the connecting plate (2) is provided with a stopper (103), and the outer side of the stopper (103) is fixedly connected to the outer side of the arc-shaped steel plate (1), the outer side of the connecting plate (2) is slidably connected to a limiting slide (21), and the outer edge of the limiting slide (21) corresponds to the inner side of the limiting slide seat (4).

7. The modular steel ring for tunnel reinforcement according to claim 6, characterized in that: A plurality of clamping seats (31) are fixedly connected to one side of the connecting plate (2); the inner walls of the plurality of clamping seats (31) are symmetrically provided with two pairs of limit grooves B (32); a clamping block (33) is slidably connected between the inner sides of each two limit grooves B (32); one end of the clamping block (33) is fixedly connected to a compression spring (34); and the end of the compression spring (34) is fixedly connected to the inner side of the clamping seat (31).

8. The modular steel ring for tunnel reinforcement according to claim 6, characterized in that: One side of both ends of the connection plate (2) is fixedly connected to a baffle (22), and the outer side of the baffle (22) is in contact with the outer side of the limiting slide (21).

9. The modular tunnel reinforcement steel ring according to claim 6, characterized in that: Two mounting holes (10) are symmetrically provided on the inner wall of the arc-shaped steel plate (1) on one side of the limiting slide (21), and the bottom ends of the two mounting holes (10) are fixedly connected to memory springs (11), and the ends of the memory springs (11) are fixedly connected to the outer side of the limiting slide (21).

10. A method for operating a modular tunnel reinforcement steel ring according to any one of claims 1 to 9, characterized in that: The method comprises the following steps: S1. First, according to the construction conditions of the tunnel, determine the number of arc-shaped steel plates (1) required to be used and the number of layers of annular multi-layer splicing and installation between multiple arc-shaped steel plates (1); S2. Subsequently, by adopting a head-to-tail splicing method, between the plurality of arc-shaped steel plates (1), the outer side of the end of one arc-shaped steel plate (1) is sequentially fitted with the outer side of the end of another arc-shaped steel plate (1), and the arc-shaped steel plate (1) is pressed against the clamping plate (82) so that the arc-shaped steel plate moves down to the inner side of the limit groove A (8), and then the opening of the end of the arc-shaped slide groove A (72) is exposed, and then the elastic force of the tension spring (73) is used to enable the arc-shaped reinforcement rod (75) to be plugged into the connection hole (104) of the adjacent arc-shaped steel plate (1) under the push of the limit block (74), thereby completing the assembly and splicing of the arc-shaped steel plates (1), and then the remaining arc-shaped steel plates (1) are spliced ​​in a head-to-tail connection method until a ring is formed, thereby completing the annular single-layer splicing of the plurality of arc-shaped steel plates (1); S3. Subsequently, among the plurality of arc-shaped steel plates (1) that have been spliced ​​in an annular single layer, the outer side of the limiting slide (21) of one of the arc-shaped steel plates (1) is sequentially connected to the inner side of the limiting slide (4) of another arc-shaped steel plate (1) by sliding, thereby completing the layer connection between the plurality of arc-shaped steel plates (1); S4. Then, the arc-shaped steel plate (1) pushes the connecting plate (2) in turn, so that the connecting plate (2) synchronously pushes the clamping seat (31) to cover the bevel block (51), so that the inclined surfaces of the two clamping blocks (33) are in conflict with the inclined surfaces of the bevel block (51), and then the two clamping blocks (33) are forced to move relatively along the inner side of the limiting groove B (32). Then, when the clamping seat (31) completely covers the bevel block (51), the clamping block (33) will be separated from the bevel block (51), and then the tension of the two compression springs (34) will push the outer sides of the two clamping blocks (33) to clamp the outer side of the connecting seat (5), and at the same time, the cross section of each clamping block (33) will fit with the cross section of the bevel block (51), thereby completing the fixing of the layer connection between the multiple arc-shaped steel plates (1).

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