Device for rapid installation of steel corrugated plates in a pipe-roof tunnel and construction method thereof

Abstract

The application provides a device for quick installation of steel corrugated plates in a pipe curtain tunnel and a construction method thereof, which comprises a lifting vehicle, a first telescopic rod is arranged in the middle of the lifting vehicle, a lifting rope is supported by a horizontal plate at the upper part of the first telescopic rod, a hook is arranged at one end of the lifting rope, the hook is used for hoisting and positioning the first corrugated plate and the second corrugated plate, the first corrugated plate is arranged at the lower side of the second corrugated plate, the first corrugated plate and the second corrugated plate are the same in structure, the first corrugated plate comprises side plates which are symmetrically arranged on both sides along the tunnel direction, the two side plates are connected through connecting plates, the lower middle parts of two adjacent connecting plates are connected through a first locking plate, second locking plates are symmetrically arranged on both sides of the first locking plate, a supporting assembly is further arranged at the upper part of the first corrugated plate, the supporting assembly comprises a first arc-shaped plate and a disc, and the first arc-shaped plate and the disc are respectively abutted against the first corrugated plate and the pipe curtain. The application is ingenious in design, can greatly improve the installation precision of the steel corrugated plate, and ensures the construction efficiency.

Description

Technical Field

[0001] This invention relates to the field of tunnel construction technology, and in particular to a device and construction method for the rapid installation of corrugated steel sheets in pipe-jacking tunnels. Background Technology

[0002] As road networks expand, grade separation between highways and railways is becoming increasingly common, leading to a rise in short, shallow-cover tunnel projects that pass under existing highways. The construction of these tunnels can significantly impact current traffic flow. For highway operations, traffic disruption is unacceptable. Therefore, ensuring uninterrupted traffic flow becomes a crucial consideration during the construction of these short, shallow-cover tunnel projects.

[0003] Currently, the main construction methods for short tunnels under highways, assuming no traffic disruption, include shield tunneling, open-cut diversion, and cut-and-cover tunneling. Among these, shield tunneling is uneconomical for short-distance, shallow-buried, large-section tunnel construction and causes significant disturbance to the surrounding soil. Open-cut diversion requires a large land area and is easily restricted by the surrounding environment, thus having certain limitations. Cut-and-cover tunneling, on the other hand, does not interrupt traffic during construction and has become an important construction method for shallow-buried tunnels.

[0004] Chinese patent document CN 107806349 A describes a steel-FRP composite corrugated plate tunnel secondary lining structure and its construction method. However, the corrugated plates of this tunnel structure are overlapped and stacked, which limits the overall stress effect and makes operation inconvenient. Chinese patent document CN 107435547 A describes a corrugated plate assembly for support and a tunnel support method, which still adopts an overlapped and stacked structure. This has defects and needs to be improved. Summary of the Invention

[0005] This invention provides a device and construction method for the rapid installation of corrugated steel sheets in pipe-jacking tunnels, which solves the problems of inconvenient installation of corrugated steel sheets, the need for stacking installation leading to large material consumption, low construction efficiency, and inability to guarantee high accuracy of the installation position of support components in traditional construction.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a device for rapid installation of corrugated steel plates in pipe curtain tunnels, including a lifting vehicle, a first telescopic rod in the middle of the lifting vehicle, a lifting rope supported by a horizontal plate at the upper part of the first telescopic rod, a hook at one end of the lifting rope for lifting and positioning the first corrugated plate and the second corrugated plate, the first corrugated plate being located below the second corrugated plate, the first corrugated plate and the second corrugated plate having the same structure, the first corrugated plate including side plates symmetrically arranged on both sides along the tunnel direction, the two side plates being connected by a connecting plate, the lower middle of two adjacent connecting plates being connected by a first locking plate, the two sides of the first locking plate being symmetrically arranged with second locking plates, the first locking plate and the second locking plate being slidably connected to the connecting plate respectively, the upper part of the first corrugated plate also being provided with a support assembly, the support assembly including a first arc plate and a disc, the first arc plate being connected to the disc by a bidirectional threaded rod, the first arc plate and the disc abutting against the first corrugated plate and the pipe curtain respectively.

[0007] In a preferred embodiment, the lifting vehicle includes a housing, a first telescopic rod fixed to the top center of the housing, two second telescopic rods parallel to each other on both sides of the first telescopic rod, the second telescopic rods being slidably connected to the housing, a clamping assembly being provided on the upper part of the second telescopic rod, a second motor and a third motor being provided on the clamping assembly, clamping plates being connected to the ends of the second motor and the third motor, the two clamping plates cooperating to fix the first corrugated plate, the clamping plate including a connecting rod, the connecting rod being connected to the second motor and the third motor respectively, a clamping head being provided on one side of the connecting rod, the clamping head being provided with multiple fitting grooves, the fitting grooves on the two opposite clamping plates being staggered.

[0008] In the preferred embodiment, two drive rods are arranged parallel to each other on the upper part of the chassis, and a base plate is provided at the bottom of the second telescopic rod. The base plate and the drive rod are threaded together. Two fixed pulleys are provided at the top of the horizontal plate, and the suspension rope is wound around the fixed pulleys. A rope winding machine is also provided on the upper part of the chassis, and the end of the suspension rope is fixed on the rope winding machine.

[0009] In the preferred embodiment, the clamping assembly includes an L-shaped plate, a third motor fixed to a first telescopic rod, a fifth through hole and an oblong groove through the L-shaped plate, two clamping plates respectively passing through the fifth through hole and the oblong groove, a first motor on one side of the third motor, a screw jack connected to the end of the first motor, a lifting rod telescopically mounted on the screw jack, a cantilever plate threadedly connected to the lifting rod, a second motor mounted on the cantilever plate, two connecting nails passing through the cantilever plate, and the connecting nails threadedly connected to the L-shaped plate.

[0010] In a preferred embodiment, the lower part of the connecting plate is provided with a bent portion, the middle part of the first locking plate and the second locking plate are respectively provided with a first slide rail and a second slide rail, and two adjacent bent portions are respectively slidably disposed in the first slide rail and the second slide rail. The outer sides of the first corrugated plate and the second corrugated plate are connected by an auxiliary support plate. The first locking plate and the second locking plate are respectively provided with at least two third through holes and a fourth through hole, and bolts are passed through the third through holes, the fourth through holes and the connecting plate. The bolts are used to fix the first locking plate and the second locking plate to the connecting plate by means of nuts.

[0011] In a preferred embodiment, two third slides are symmetrically arranged on both sides of the first slide. A slider slides in the third slide, and an auxiliary block is supported on the upper part of the slider. The side wall of the auxiliary block is attached to the connecting plate. A second through hole is provided through the auxiliary block, and a bolt is inserted in the second through hole. The bolt is fixed by a nut and the auxiliary block.

[0012] In the preferred embodiment, the upper part of the first arc-shaped plate is provided with a vertical support and a first sleeve, and the lower part of the disc is provided with a second sleeve. The first sleeve is connected to the second sleeve through a bidirectional threaded rod. The bidirectional threaded rod is threaded to the first sleeve and the second sleeve respectively. A first through hole is provided through the vertical support, and a T-shaped insert is inserted through the first through hole. An adjustment block is also provided in the middle of the bidirectional threaded rod.

[0013] In the preferred embodiment, the connecting plate is connected to the positioning curved plate and the support assembly. The positioning curved plate has multiple square grooves, and the vertical brace is inserted into the square grooves. A hanging nail is provided in the middle of the connecting plate, and threaded posts are provided on both sides of the hanging nail. Nuts are fitted on the threaded posts. A first clamping plate and a second clamping plate are provided on one side of the positioning curved plate. The first clamping plate and the second clamping plate are respectively provided with a first locking slot and a second locking slot. The hanging nail is engaged with the first locking slot, and the threaded posts are engaged with the second locking slot. A protrusion is provided on the other side of the positioning curved plate. A vertical rod is ball-jointed to the protrusion. A second arc-shaped plate is provided at the bottom of the vertical rod. The second arc-shaped plate abuts against the upper side of the first corrugated plate. A ball hole is provided in the middle of the protrusion. A ball head is fixed on the vertical rod. The ball head and the ball hole are hinged. Nuts are threaded to both sides of the ball head.

[0014] In a preferred embodiment, limiting blocks are provided on the upper and lower sides of the end of the positioning curved plate, and a rotating shaft is provided between the limiting blocks. The first and second clamping plates are respectively provided with a first hinge and a second hinge. The rotating shaft passes through the first and second hinge. The upper part of the first and second clamping plates is provided with a first alignment hole and a second alignment hole. The first clamping plate is connected to the second clamping plate through a synchronous plate. The lower part of the synchronous plate is provided with a first insertion rod and a second insertion rod. The first insertion rod and the second insertion rod are respectively inserted into the first alignment hole and the second alignment hole.

[0015] The side near the limiting block has multiple first threaded holes. The follower plate is connected to the first threaded holes through the first locking pin. The follower plate has multiple L-shaped grooves. The L-shaped grooves and square grooves cooperate to lock the first sleeve. The follower plate has constraint plates on both sides near the first locking pin. The constraint plates have second threaded holes. The fixing plate is connected to the constraint plates through the second locking pin. The second locking pin and the second threaded hole are threaded together. The follower plate also has a slot for avoiding the limiting block.

[0016] In a preferred embodiment, a construction method for a corrugated steel sheet installation device includes the following steps:

[0017] S1. Pipe jacking construction is carried out on the outside of the tunnel outline until pipe jacking support is formed.

[0018] S2. The tunnel is excavated using the CRD method. Initial support is carried out promptly after excavation, and the steel arch frame and temporary supports are installed.

[0019] S3. Transport the first and second corrugated plates into the tunnel and install them in sequence;

[0020] S4. The first corrugated sheet is placed inside the tunnel at the bottom using a lift vehicle, and then the second corrugated sheet is hoisted and assembled to form a segment.

[0021] S5. The multiple first corrugated plates are fixed together by bolts and nuts, and then the support assembly is installed between the outer side of the first corrugated plates and the pipe curtain.

[0022] S6. Install the first and second corrugated plates in stages according to the direction of excavation in the corresponding construction area.

[0023] S7. Install the concrete formwork and pour the concrete.

[0024] S8. Demold after the design strength is reached;

[0025] S9. Concrete is poured to fill the inverted arch inside the base slab.

[0026] S10, and then seal the surface;

[0027] S11. Temporary supports are removed, and the next section of tunnel steel arch construction begins;

[0028] S12. Repeat S2 to S11 until all construction work is completed.

[0029] The beneficial effects of this invention are as follows:

[0030] ① The pipe jacking pre-support structure forms a horizontal construction curtain in the stratum;

[0031] ② The temporary internal support removal, waterproof layer installation, steel corrugated plate installation, and filling concrete pouring are carried out continuously in the same segment. Compared with conventional processes, this reduces the steps of pre-construction of the waterproof layer and the construction of the invert arch first, greatly shortens the exposure time after the temporary support is removed and before the secondary lining construction, and can effectively reduce settlement during construction.

[0032] ③ The corrugated steel plate segmental assembly structure replaces the secondary lining trolley, which can flexibly adjust the construction length of the secondary lining according to the monitoring and measurement situation when the temporary support is removed.

[0033] This method effectively controls settlement during the construction of short tunnels with shallow overburden layers under highways. It also employs advanced pipe jacking support to provide a sufficiently rigid horizontal construction curtain. The innovative approach of continuous construction within the same segment, including temporary internal support removal, waterproofing layer installation, corrugated steel plate installation, and concrete pouring, solves the problem of excessive exposure during the secondary lining construction period caused by the advanced installation of the waterproofing layer and invert arch. Furthermore, the corrugated steel plate segmental assembly structure, replacing the secondary lining trolley, allows for flexible adjustment of the secondary lining construction length based on monitoring and measurement data during temporary support removal.

[0034] The lifting vehicle allows for efficient hoisting and movement of the first and second corrugated plates, facilitating subsequent alignment and fixation. Two second telescopic rods work together at different heights, using the fitting grooves on the clamping plates to hold and fix the first corrugated plate. The two clamping plates work together, and the clamping angle can be adjusted as needed, while the height can also be changed, adapting to the positioning of first corrugated plates with different curvatures and installation angles. The operation is convenient, and the performance is excellent. Furthermore, the installation and adjustment of the support components are easy. Multiple support components can be assembled and fixed at the bottom of the positioning curved plate, and then installed in one step, ensuring precise installation positions and good support force. The first and second clamping plates on the positioning curved plate can flexibly change their angles, allowing the installation of corresponding support components on both sides of the first corrugated plates to be completed under one positioning curved plate. This saves materials, facilitates storage, and offers good economic benefits. Attached Figure Description

[0035] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0036] Figure 1 This is a schematic diagram of the lifting vehicle hoisting the first corrugated plate of the present invention, state one;

[0037] Figure 2 yes Figure 1 A frontal view diagram;

[0038] Figure 3 This is a schematic diagram of the lifting vehicle hoisting the first corrugated plate, state two;

[0039] Figure 4yes Figure 1 A schematic diagram of the exploded structure;

[0040] Figure 5 This is a schematic diagram of the overall structure of the present invention, state one;

[0041] Figure 6 yes Figure 5 A frontal view diagram;

[0042] Figure 7 This is a schematic diagram of the overall structure of the present invention, state two;

[0043] Figure 8 yes Figure 5 A schematic diagram of the exploded structure;

[0044] Figure 9 yes Figure 8 A magnified structural diagram at point A;

[0045] Figure 10 This is a schematic diagram of the exploded structure of the first locking plate of the present invention;

[0046] Figure 11 This is a schematic diagram of the exploded structure of the second locking plate of the present invention;

[0047] Figure 12 This is a schematic diagram of the positioning curved plate mounting support assembly structure of the present invention, state one;

[0048] Figure 13 This is a schematic diagram of the positioning curved plate mounting support assembly structure of the present invention, state two;

[0049] Figure 14 yes Figure 13 A magnified structural diagram at point B;

[0050] Figure 15 yes Figure 13 A magnified structural diagram at point C;

[0051] Figure 16 This is a schematic diagram of the positioning curved plate mounting support assembly structure of the present invention, state three;

[0052] Figure 17 This is a schematic diagram of the positioning curved plate mounting support assembly structure of the present invention, state four;

[0053] Figure 18 yes Figure 17 A magnified structural diagram at point D;

[0054] Figure 19 This is a schematic diagram of the positioning curved plate mounting support assembly structure of the present invention, state five;

[0055] Figure 20This is a schematic diagram of the positioning curved plate mounting support assembly structure of the present invention, state six;

[0056] Figure 21 yes Figure 20 A magnified structural diagram at point E;

[0057] Figure 22 yes Figure 16 Schematic diagram of the exploded structure, state one;

[0058] Figure 23 yes Figure 22 A magnified structural diagram at point F;

[0059] Figure 24 yes Figure 16 Schematic diagram of the explosion structure, state two;

[0060] Figure 25 yes Figure 24 A magnified structural diagram at point G.

[0061] In the diagram: First corrugated plate 1; Side plate 101; Connecting plate 102; Bending part 103; Hanging nail 104; Threaded post 105; Second corrugated plate 2; Auxiliary support plate 3; Support assembly 4; First arc plate 401; Vertical support 402; First sleeve 403; Disc 404; Second sleeve 405; Bidirectional threaded rod 406; Adjusting block 407; First through hole 408; T-shaped insert 409; First locking plate 5; First slide rail 501; Auxiliary block 502; Third slide rail 5 03; Slider 504; Second through hole 505; Third through hole 506; Second locking plate 6; Second slide rail 601; Fourth through hole 602; Bolt 7; Nut 8; Positioning curved plate 9; First clamping plate 901; Second clamping plate 902; First latch 903; Second latch 904; Square groove 905; Protrusion 906; Second arc plate 907; Vertical rod 908; Ball head 909; Ball hole 910; Follower plate 911; First locking pin 912; L-shaped groove 913; First threaded hole 914; Limiting block 915; Rotating shaft 916; First hinge part 917; Second hinge part 918; First alignment hole 919; Second alignment hole 920; Synchronous plate 921; First insertion rod 922; Second insertion rod 923; Slot 924; Constraint plate 925; Second threaded hole 926; Fixing plate 927; Second locking pin 928; Lifting vehicle 10; First telescopic rod 1001; Second telescopic rod 1002; Base plate 1003; Drive rod 1004; Horizontal plate 1005 ; 1006; 1007; 1008; 1009; 1010; 11; 11; 11; 11; 1102; 1103; 1104; 1105; 1106; 1107; 1108; 1109; 1110; 12; 1201; 1202; 1203; 1204; 1205; 1206; 1202; 1203. Detailed Implementation

[0062] like Figure 1-8A device for rapid installation of corrugated steel sheets in a pipe-jacking tunnel includes a lifting vehicle 10. A first telescopic rod 1001 is located in the middle of the lifting vehicle 10. A lifting rope 1006 is supported on the upper part of the first telescopic rod 1001 by a horizontal plate 1005. One end of the lifting rope 1006 is equipped with a hook 1008 for hoisting and positioning a first corrugated sheet 1 and a second corrugated sheet 2. The first corrugated sheet 1 is located below the second corrugated sheet 2. The first corrugated sheet 1 and the second corrugated sheet 2 have identical structures. The first corrugated sheet 1 includes side plates 101 symmetrically arranged on both sides along the tunnel direction. Two side plates 101 are connected by a connecting plate 102. The lower middle of two adjacent connecting plates 102 is connected by a first locking plate 5. Second locking plates 6 are symmetrically provided on both sides of the first locking plate 5. The first locking plate 5 and the second locking plate 6 are slidably connected to the connecting plate 102 respectively. The upper part of the first corrugated plate 1 is also provided with a support assembly 4. The support assembly 4 includes a first arc plate 401 and a disc 404. The first arc plate 401 is connected to the disc 404 by a bidirectional threaded rod 406. The first arc plate 401 and the disc 404 abut against the first corrugated plate 1 and the tube curtain respectively. This structure enables the hook 1008 on the lifting vehicle 10 to perform the function of lifting and moving, facilitating the installation of the first corrugated plate 1 and the second corrugated plate 2. During installation, the first locking plate 5 at the bottom of the first corrugated plate 1 and the second corrugated plate 2 can quickly align them and, at the same time, act as a constraint to ensure a tight connection and sufficient contact between the two connecting plates 102, resulting in a good locking effect. The first arc plate 401 is supported on the first corrugated plate 1, and the disc 404 is supported on the waterproof plate. Adjustment is convenient, and the support components do not require welding and fixing on both sides, making operation convenient.

[0063] In a preferred embodiment, the lifting vehicle 10 includes a housing 1010. A first telescopic rod 1001 is fixedly mounted in the middle of the top of the housing 1010. Two second telescopic rods 1002 are arranged parallel to each other on both sides of the first telescopic rod 1001. The second telescopic rods 1002 are slidably connected to the housing 1010. A clamping assembly 11 is provided on the upper part of the second telescopic rod 1002. A second motor 1106 and a third motor 1107 are provided on the clamping assembly 11. The ends of the second motor 1106 and the third motor 1107 are connected to clamping plates 12. The two clamping plates 12 cooperate to fix the first corrugated plate 1. The clamping plate 12 includes a connecting rod 1201. The connecting rod 1201 is connected to the second motor 1106 and the third motor 1107 respectively. A clamping head 1202 is provided on one side of the connecting rod 1201. The clamping head 1202 is provided with a plurality of fitting grooves 1203. The fitting grooves 1203 on the two opposite clamping plates 12 are staggered. This structure allows the first telescopic rod 1001 to move and adjust in the height direction, thereby ensuring sufficient hoisting range. The two second telescopic rods 1002 cooperate with each other to form a high-low combination in the height direction. The two clamping plates 12 can rotate in the angular direction to adapt to different curvatures of the first corrugated steel plate 1. At the same time, under the action of the second telescopic rods 1002, the first corrugated plate 1 can be corrected in the angle to meet the installation requirements. The overall performance is good. The fitting groove 1203 on the clamping head 1202 can fully fit on the crest of the first corrugated plate 1, ensuring the overall clamping force. The multiple fitting grooves, with their angular coordination, ensure sufficient clamping force.

[0064] In a preferred embodiment, two drive rods 1004 are parallel to each other on the upper part of the housing 1010. A base plate 1003 is located at the bottom of the second telescopic rod 1002, and the base plate 1003 is threadedly connected to the drive rods 1004. Two fixed pulleys 1007 are located at the top of the horizontal plate 1005, and the suspension rope 1006 is wound around the fixed pulleys 1007. A rope winding machine 1009 is also located on the upper part of the housing 1010, and the end of the suspension rope 1006 is fixed to the rope winding machine 1009. The drive rods 1004 are screws or lead screws. Depending on the site conditions, manual or motor servo drive can be used to rotate the drive rods 1004, thereby changing the position of the second telescopic rod 1002, ensuring convenient use. The fixed pulleys 1007 provide good guidance for the suspension rope 1006, and overall adjustment is convenient.

[0065] In a preferred embodiment, the clamping assembly 11 includes an L-shaped plate 1101, a third motor 1107 fixed on a first telescopic rod 1001, a fifth through hole 1109 and an oblong groove 1108 through the L-shaped plate 1101, two clamping plates 12 respectively passing through the fifth through hole 1109 and the oblong groove 1108, a first motor 1103 on one side of the third motor 1107, a screw jack 1102 connected to the end of the first motor 1103, a lifting rod 1104 telescopically mounted on the screw jack 1102, a cantilever plate 1105 threadedly connected to the lifting rod 1104, a second motor 1106 mounted on the cantilever plate 1105, two connecting nails 1110 passing through the cantilever plate 1105, and the connecting nails 1110 threadedly connected to the L-shaped plate 1101. The screw jack 1102 has a meshing worm gear torque transmission structure. When the third motor 1107 drives the worm gear to rotate, the worm gear rotates, which in turn drives the threaded sleeve on the upper side of the worm gear to rotate. A lifting rod 1104 is installed inside the threaded sleeve. The lifting rod 1104 moves vertically, causing the cantilever plate 1105 to adjust its height, thereby changing the position of the second motor 1106, and thus changing the position of the clamping plate 12. The overall operation is convenient and the performance is good. An extension plate is detachably provided on the side of the cantilever plate 1105 near the clamping plate 12. The extension plate and the bottom of the cantilever plate 1105 are slidably connected. The extension plate is L-shaped and has a groove for supporting the connecting rod 1201, thereby improving the support effect on the clamping plate 12 and ensuring the stability of the overall structure.

[0066] like Figure 9-11In the preferred embodiment, the lower part of the connecting plate 102 is provided with a bent portion 103. The middle parts of the first locking plate 5 and the second locking plate 6 are respectively provided with a first slide rail 501 and a second slide rail 601. Two adjacent bent portions 103 are respectively slidably disposed in the first slide rail 501 and the second slide rail 601. The outer sides of the first corrugated plate 1 and the second corrugated plate 2 are connected by an auxiliary support plate 3. The first locking plate 5 and the second locking plate 6 are respectively provided with at least two third through holes 506 and fourth through holes 602 symmetrically. Bolts 7 are inserted into the third through holes 506, the fourth through holes 602 and the connecting plate 102. The bolts 7 fix the first locking plate 5 and the second locking plate 6 to the connecting plate 102 by means of nuts 8. This structure ensures that the installation height of two adjacent first corrugated plates 1 is the same. The first locking plate 5 locks in the middle of the connecting plate 102, resulting in a good overall connection and easy operation for construction personnel. The connecting plate 102 has through holes for bolts 7 to pass through. After the two first corrugated plates 1 perpendicular to the tunnel axis are connected, the second locking plate 6 is retracted to avoid interference when the first corrugated plates 1 spliced ​​along the next segment of the tunnel axis are installed. After the first corrugated plate 1 of the next segment is installed, the second locking plate 6 of the previous segment slides into the first corrugated plate 1 of the next segment. At this time, a stable fixed structure is also formed between the first corrugated plates 1 of the two adjacent segments, forming a more rigid construction channel and improving the bearing capacity of the upper steel arch and soil. When the first locking plate 5 and the second locking plate 6 are adjusted to the design position, they can fix and lock the two adjacent connecting plates 102, maintaining the stability of the overall structure.

[0067] In a preferred embodiment, two third slides 503 are symmetrically arranged on both sides of the first slide 501. A slider 504 slides within the third slide 503, and an auxiliary block 502 supports the upper part of the slider 504. The sidewall of the auxiliary block 502 is attached to the connecting plate 102, and a second through hole 505 is provided through the auxiliary block 502. A bolt 7 passes through the second through hole 505, and the bolt 7 is fixed to the auxiliary block 502 by a nut 8. This structure further enhances the connection effect between the two adjacent connecting plates 102 and maintains better structural strength.

[0068] In the preferred embodiment, the upper part of the first arc plate 401 is provided with a vertical support 402 and a first sleeve 403, and the lower part of the disc 404 is provided with a second sleeve 405. The first sleeve 403 is connected to the second sleeve 405 through a bidirectional threaded rod 406. The bidirectional threaded rod 406 is threadedly connected to the first sleeve 403 and the second sleeve 405 respectively. The vertical support 402 is provided with a first through hole 408, and a T-shaped insert 409 is provided through the first through hole 408. An adjusting block 407 is also provided in the middle of the bidirectional threaded rod 406. The adjusting block 407 has a hexagonal cross-section. This structure allows the position of the first arc plate 401 and the disc 404 to be adjusted by rotating the bidirectional threaded rod 406, thereby ensuring the stability of its installation, sufficient overall force, and enhanced load-bearing capacity. Construction personnel can use a wrench to rotate the adjusting block 407, which is flexible and convenient. The T-shaped insert 409 serves as a limit, ensuring that the position of the vertical support 402 is relatively fixed and preventing it from sliding out of the square groove 905.

[0069] like Figure 12-25In the preferred embodiment, the connecting plate 102 is connected to the support assembly 4 via the positioning curved plate 9. The positioning curved plate 9 has multiple square grooves 905, and the vertical support 402 is inserted into the square grooves 905. A hanging nail 104 is provided in the middle of the connecting plate 102, and threaded posts 105 are provided on both sides of the hanging nail 104. Nuts 8 are fitted on the threaded posts 105. A first locking plate 901 and a second locking plate 902 are provided on one side of the positioning curved plate 9. The first locking plate 901 and the second locking plate 902 are respectively provided with a first locking slot 903 and a second locking slot 904. 4. The hanging nail 104 is engaged with the first bayonet 903, the threaded post 105 is engaged with the second bayonet 904, and the other side of the positioning curved plate 9 is provided with a protrusion 906. A vertical rod 908 is ball-jointed on the protrusion 906. A second arc plate 907 is provided at the bottom of the vertical rod 908. The second arc plate 907 abuts against the upper side of the first corrugated plate 1. A ball hole 910 is provided in the middle of the protrusion 906. A ball head 909 is fixed on the vertical rod 908. The ball head 909 and the ball hole 910 are hinged. Nuts 8 are threadedly connected to both sides of the ball head 909. This structure allows the operator to first install the support assembly 4 onto the positioning curved plate 9. The vertical support 402 has a square cross-section, and its dimensions match the square groove 905. The T-shaped insert 409 locks the height position, ensuring that the height of the first arc plate 401 relative to the positioning curved plate 9 is the same, preventing interference with the crests of the first corrugated plate 1 during installation. The positioning curved plate 9 can be mounted and positioned using hooks 104 and threaded posts 105, maintaining its accurate installation position. The first clamping plate 901 and the second clamping plate 902 are attached to the side wall of the connecting plate 102. The positioning curved plate 9 serves as the installation reference, ensuring that the first corrugated plate 1 of different segments is properly positioned. The support components 4 on plate 1 are installed in the same position, resulting in good overall force distribution. The second arc plate 907 can be adjusted in height relative to the positioning curved plate 9 under the action of the nut 8. At the same time, the vertical rod 908 can adjust the position of the second arc plate 907. The second arc plate 907 abuts against the crest of the first corrugated plate 1. The second arc plate 907 and the first corrugated plate 1 have a large contact area, which serves as a fulcrum to ensure good support for the positioning curved plate 9. After all the support components 4 are adjusted and installed in place, the connection between the second arc plate 907 and the first corrugated plate 1 is first disconnected, and then the positioning curved plate 9 is pulled out. The overall operation is convenient and the use effect is good.

[0070] In a preferred embodiment, the upper and lower ends of the positioning curved plate 9 are provided with limiting blocks 915, and a rotating shaft 916 is provided between the limiting blocks 915. The first clamping plate 901 and the second clamping plate 902 are respectively provided with a first hinge portion 917 and a second hinge portion 918. The rotating shaft 916 passes through the first hinge portion 917 and the second hinge portion 918. The upper part of the first clamping plate 901 and the second clamping plate 902 is provided with a first alignment hole 919 and a second alignment hole 920. The first clamping plate 901 is connected to the second clamping plate 902 through a synchronization plate 921. The lower part of the synchronization plate 921 is provided with a first insertion rod 922 and a second insertion rod 923. The first insertion rod 922 and the second insertion rod 923 are respectively inserted into the first alignment hole 919 and the second alignment hole 920.

[0071] A plurality of first threaded holes 914 are provided on the side near the limiting block 915. The follower plate 911 is connected to the first threaded holes 914 through the first locking pin 912. The follower plate 911 is provided with a plurality of L-shaped grooves 913. The L-shaped grooves 913 and the square grooves 905 cooperate to lock the first sleeve 403. The follower plate 911 is provided with constraint plates 925 on both sides near the first locking pin 912. The constraint plates 925 are provided with second threaded holes 926. The fixing plate 927 is connected to the constraint plates 925 through the second locking pin 928. The second locking pin 928 and the second threaded hole 926 are threadedly connected. The follower plate 911 is also provided with a slot 924 for avoiding the limiting block 915. This structure allows the L-shaped groove 913 and square groove 905 of the follower plate 911 to cooperate with each other. By changing the position of the follower plate 911 and adjusting and locking it using the first locking pin 912, the opening state of the square groove 905 is changed. When it is in the closed state, the support component 4 located in the square groove 905 is restrained by the T-shaped insert 409. Within the square groove 905, under its own weight, it is in a mutually stable state. After the construction personnel lift the positioning curved plate 9 to the installation position, and then position it using the hanging pin 104 and threaded post 105 on one side of the first corrugated plate 1, ... With the auxiliary support of the second arc plate 907, the installation of each support component 4 can be completed quickly. When the support component 4 is installed on the first corrugated plate 1 on the other side, it is only necessary to pull out the synchronous plate 921, and then rotate the first clamping plate 901 and the second clamping plate 902 by 180° respectively. Then, the synchronous plate 921 is used to lock it, which can adjust the positioning curved plate 9 to form the second state, which facilitates the overall installation. At the same time, in order to adapt to the needs of the installation positions on both sides, the square groove 905 and the L-shaped groove 913 can be symmetrically set on the positioning curved plate 9 and the follower plate 911 respectively, which makes the operation flexible.

[0072] In a preferred embodiment, a construction method for a corrugated steel sheet installation device includes the following steps:

[0073] S1. Pipe jacking construction is carried out on the outside of the tunnel outline until pipe jacking support is formed.

[0074] The tunnel's supporting foundation is formed by using pipe jacking for advanced support, steel arch frame initial lining, and corrugated steel plate concrete secondary lining.

[0075] The pre-support structure of the pipe jacking system consists of seamless steel, interlocking steel sections, and grouting guide pipes. It employs a "hydraulic jacking of steel pipes with spiral soil removal inside the pipes" construction method, completed through jacking from one side or both directions. Appropriate lengths of I-beams are arranged inside the seamless pipes, which are then filled with fine aggregate concrete to enhance the overall strength of the pipe jacking. To minimize ground disturbance and settlement caused by the pipe jacking construction, continuous Φ42×3.25mm grouting guide pipes are welded to the outer wall of the pipe jacking. Grouting can be monitored during the pipe jacking construction process, and additional grouting can be added based on monitoring results. The corrugated steel plate concrete secondary lining consists of corrugated steel plates assembled to form the tunnel's internal outline, with concrete filling the gaps between the corrugated steel plates and the primary lining, forming the secondary lining structure.

[0076] The pipe jacking method employs "hydraulic jacking of steel pipes with spiral excavation inside the pipe": the steel pipe serves as a casing, with a spiral drill rod equipped with a specialized drill bit installed inside. The pipe jacking installation equipment provides the rotational power of the spiral drill rod and the jacking force of the casing. During the jacking of the steel pipe, the spiral drill rod transmits drilling pressure and torque to the drill bit to cut the soil layer, and the drill cuttings are spirally discharged from inside the pipe to the outside of the borehole. Jacking, cutting, and excavation are carried out simultaneously, propelling the steel pipe forward segment by segment until the completion of that construction unit. This process is repeated for subsequent units, gradually forming the pipe jacking structure outside the excavation line. The specific steps are divided into standard pipe construction and conventional pipe construction.

[0077] S2. The tunnel is excavated using the CRD method. Initial support is carried out promptly after excavation, and the steel arch frame and temporary supports are installed.

[0078] Outside the influence area of ​​the existing expressway, the length of the secondary lining pouring in one go is controlled as follows: the pouring length of the secondary lining can be controlled at 4.8 to 7.2m based on the monitoring and measurement results; within the influence area of ​​the existing expressway, the pouring length of the secondary lining in one go can be controlled at 1.2 to 3.6m based on the monitoring and measurement results.

[0079] S3. Transport the first corrugated plate 1 and the second corrugated plate 2 into the tunnel and install them in sequence;

[0080] S4. The first corrugated plate 1 is placed inside the tunnel at the bottom using the lifting vehicle 10, and then the second corrugated plate 2 is hoisted and assembled to form a segment.

[0081] S5. The multiple first corrugated plates 1 are fixed together by bolts 7 and nuts 8, and then the support assembly 4 is installed between the outer side of the first corrugated plate 1 and the pipe curtain.

[0082] Before tunnel jacking excavation, a pipe curtain is installed on the outside of the tunnel. The pipe curtain acts as a load-bearing barrier between the upper soil and the soil to be excavated, preventing the risk of upper soil settlement after the lower soil is excavated. As excavation progresses, initial support steel arches and temporary steel supports are installed below the pipe curtain to bear the load, ensuring structural stability and maintaining the overall structural strength and rigidity of the pipe curtain. A second corrugated plate 2 is placed below the excavation space, and then multiple first corrugated plates 1 are installed on both sides. Both the first and second corrugated plates 1 and 2 are made of steel, offering good overall performance, ease of processing, and corrosion resistance, ensuring structural stability within the tunnel environment. The first corrugated plate 1 has a cross-section consisting of interconnected crests and troughs, supported by a first arc-shaped plate 401. On the crest, thus enabling better force transmission, the temporary steel support corresponding to the length of the secondary lining pouring is removed, and the disc 404 is supported on the waterproof plate. That is, the support component 4 does not need to be welded and fixed to the first corrugated plate 1 and the pipe curtain. Instead, the distance adjustment function of the bidirectional threaded rod 406 is used to fix the first arc plate 401 and the disc 404 in their respective designed positions. Since the distance between the first corrugated plate 1 and the second corrugated plate 2 and the tunnel pipe curtain is a relatively small value within the design range after installation and adjustment, and since the first corrugated plate 1 and the initial support steel arch have a certain curvature, once the first arc plate 401 and the disc 404 are lifted into place, their state is locked, and there will be no problem of slippage or falling off.

[0083] S6. Install the first corrugated plate 1 and the second corrugated plate 2 in stages according to the direction of excavation in the corresponding construction area.

[0084] S7. Install the concrete formwork and pour the concrete.

[0085] S8. Demold after the design strength is reached;

[0086] S9. Concrete is poured to fill the inverted arch inside the base slab.

[0087] S10, and then seal the surface;

[0088] S11. Temporary supports are removed, and the next section of tunnel steel arch construction begins;

[0089] S12. Repeat S2 to S11 until all construction work is completed.

[0090] The above embodiments are merely preferred technical solutions of the present invention and should not be considered as limitations on the present invention. The scope of protection of the present invention should be limited to the technical solutions described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A device for rapid installation of corrugated steel sheets in pipe-jacking tunnels, characterized in that: The system includes a lifting vehicle (10), with a first telescopic rod (1001) in the middle. A hoisting rope (1006) is supported on the upper part of the first telescopic rod (1001) via a horizontal plate (1005). One end of the hoisting rope (1006) is equipped with a hook (1008), which is used for hoisting and positioning the first corrugated plate (1) and the second corrugated plate (2). The first corrugated plate (1) is located below the second corrugated plate (2). The first corrugated plate (1) and the second corrugated plate (2) have the same structure. The first corrugated plate (1) includes side plates (101) symmetrically arranged on both sides along the tunnel direction. The two side plates (101) are connected by a connecting plate (…). 102) Connection, the lower middle of two adjacent connecting plates (102) is connected by a first locking plate (5), and the two sides of the first locking plate (5) are symmetrically provided with second locking plates (6). The first locking plate (5) and the second locking plate (6) are slidably connected to the connecting plate (102) respectively. The upper part of the first corrugated plate (1) is also provided with a support assembly (4). The support assembly (4) includes a first arc plate (401) and a disc (404). The first arc plate (401) is connected to the disc (404) through a bidirectional threaded rod (406). The first arc plate (401) and the disc (404) abut against the first corrugated plate (1) and the pipe curtain respectively. The lifting vehicle (10) includes a housing (1010), a first telescopic rod (1001) fixed in the middle of the top of the housing (1010), two second telescopic rods (1002) parallel to each other on both sides of the first telescopic rod (1001), the second telescopic rods (1002) and the housing (1010) are slidably connected, a clamping assembly (11) is provided on the upper part of the second telescopic rod (1002), a second motor (1106) and a third motor (1107) are provided on the clamping assembly (11), the second motor (1106) and the third motor (1107) are connected to each other. The end of the third motor (1107) is connected to a clamping plate (12). The two clamping plates (12) cooperate to fix the first corrugated plate (1). The clamping plate (12) includes a connecting rod (1201). The connecting rod (1201) is connected to the second motor (1106) and the third motor (1107) respectively. A clamping head (1202) is provided on one side of the connecting rod (1201). The clamping head (1202) is provided with multiple fitting grooves (1203). The fitting grooves (1203) on the two opposite clamping plates (12) are staggered. The upper part of the casing (1010) is provided with two parallel drive rods (1004), the bottom of the second telescopic rod (1002) is provided with a base plate (1003), the base plate (1003) and the drive rods (1004) are threaded together, the top of the horizontal plate (1005) is provided with two fixed pulleys (1007), the lifting rope (1006) is wound on the fixed pulleys (1007), the upper part of the casing (1010) is also provided with a rope winding machine (1009), and the end of the lifting rope (1006) is fixed on the rope winding machine (1009); The clamping assembly (11) includes an L-shaped plate (1101), a fifth through hole (1109) and an oblong groove (1108) are provided through the L-shaped plate (1101), two clamping plates (12) are respectively installed in the fifth through hole (1109) and the oblong groove (1108), a first motor (1103) is provided on one side of the third motor (1107), a screw jack (1102) is connected to the end of the first motor (1103), a lifting rod (1104) is provided on the screw jack (1102) and a cantilever plate (1105) is threadedly connected to the lifting rod (1104), a second motor (1106) is installed on the cantilever plate (1105), two connecting nails (1110) are installed on the cantilever plate (1105), and the connecting nails (1110) are threadedly connected to the L-shaped plate (1101); The lower part of the connecting plate (102) is provided with a bending part (103). The middle part of the first locking plate (5) and the second locking plate (6) are respectively provided with a first slide rail (501) and a second slide rail (601). Two adjacent bending parts (103) are respectively slid in the first slide rail (501) and the second slide rail (601). The outer sides of the first corrugated plate (1) and the second corrugated plate (2) are connected by an auxiliary support plate (3). At least two third through holes (506) and fourth through holes (602) are symmetrically provided on the first locking plate (5) and the second locking plate (6). Bolts (7) are passed through the third through holes (506), the fourth through holes (602) and the connecting plate (102). The bolts (7) fix the first locking plate (5) and the second locking plate (6) to the connecting plate (102) by nuts (8). Two third slides (503) are symmetrically arranged on both sides of the first slide (501). A slider (504) is slidably arranged in the third slide (503). An auxiliary block (502) is supported on the upper part of the slider (504). The side wall of the auxiliary block (502) is attached to the connecting plate (102). A second through hole (505) is provided through the auxiliary block (502). A bolt (7) is inserted in the second through hole (505). The bolt (7) is fixed by a nut (8) and the auxiliary block (502).

2. The device for rapid installation of corrugated steel plates in pipe-jacking tunnels according to claim 1, characterized in that: The upper part of the first arc plate (401) is provided with a vertical support (402) and a first sleeve (403), and the lower part of the disc (404) is provided with a second sleeve (405). The first sleeve (403) is connected to the second sleeve (405) through a double-threaded rod (406). The double-threaded rod (406) is threadedly connected to the first sleeve (403) and the second sleeve (405) respectively. The vertical support (402) is provided with a first through hole (408), and a T-shaped insert rod (409) is provided through the first through hole (408). An adjusting block (407) is also provided in the middle of the double-threaded rod (406).

3. The device for rapid installation of corrugated steel plates in pipe-jacking tunnels according to claim 2, characterized in that: The connecting plate (102) is connected to the positioning curved plate (9) and the support assembly (4). The positioning curved plate (9) is provided with multiple square grooves (905). The vertical support (402) is inserted into the square grooves (905). The connecting plate (102) is provided with a hanging nail (104) in the middle. Threaded posts (105) are provided on both sides of the hanging nail (104). Nuts (8) are fitted on the threaded posts (105). The positioning curved plate (9) is provided with a first clamping plate (901) and a second clamping plate (902) on one side. The first clamping plate (901) and the second clamping plate (902) are provided with a first latch (903) and a second latch (904) respectively. (104) and the first bayonet (903) are engaged, the threaded column (105) and the second bayonet (904) are engaged, the other side of the positioning curved plate (9) is provided with a protrusion (906), the protrusion (906) is ball-jointed with a vertical rod (908), the bottom of the vertical rod (908) is provided with a second arc plate (907), the second arc plate (907) abuts against the upper side of the first corrugated plate (1), the middle part of the protrusion (906) is provided with a ball hole (910), the vertical rod (908) is fixed with a ball head (909), the ball head (909) and the ball hole (910) are hinged, and nuts (8) are threadedly connected to both sides of the ball head (909).

4. The device for rapid installation of corrugated steel plates in pipe-jacking tunnels according to claim 1, characterized in that: The positioning curved plate (9) has a limiting block (915) on the upper and lower sides of its end, and a rotating shaft (916) between the limiting blocks (915). The first clamping plate (901) and the second clamping plate (902) are respectively provided with a first hinge (917) and a second hinge (918). The rotating shaft (916) passes through the first hinge (917) and the second hinge (918). The first clamping plate (901) and the second clamping plate (902) are provided with a first alignment hole (919) and a second alignment hole (920) on their upper parts. The first clamping plate (901) is connected to the second clamping plate (902) through a synchronous plate (921). The synchronous plate (921) is provided with a first insertion rod (922) and a second insertion rod (923) on its lower part. The first insertion rod (922) and the second insertion rod (923) are respectively inserted into the first alignment hole (919) and the second alignment hole (920). A plurality of first threaded holes (914) are provided on the side near the limiting block (915). The follower plate (911) is connected to the first threaded holes (914) through the first locking pin (912). The follower plate (911) is provided with a plurality of L-shaped grooves (913). The L-shaped grooves (913) and the square grooves (905) cooperate to lock the first sleeve (403). The follower plate (911) is provided with constraint plates (925) on both sides near the first locking pin (912). The constraint plates (925) are provided with second threaded holes (926). The fixing plate (927) is connected to the constraint plates (925) through the second locking pin (928). The second locking pin (928) is threadedly connected to the second threaded hole (926). The follower plate (911) is also provided with a slot (924) for avoiding the limiting block (915).

5. A construction method for a device for rapid installation of corrugated steel plates in pipe-jacking tunnels according to any one of claims 1 to 4, characterized in that: Includes the following steps: S1. Pipe jacking construction is carried out on the outside of the tunnel outline until pipe jacking support is formed. S2. The tunnel is excavated using the CRD method. Initial support is carried out promptly after excavation, and the steel arch frame and temporary supports are installed. S3. Transport the first corrugated plate (1) and the second corrugated plate (2) into the tunnel and install them in sequence; S4. The first corrugated plate (1) is placed inside the tunnel by a lifting vehicle (10), and then the second corrugated plate (2) is hoisted and assembled to form a segment. S5. The multiple first corrugated plates (1) are fixed together by bolts (7) and nuts (8), and then the support assembly (4) is installed between the outer side of the first corrugated plate (1) and the pipe curtain. S6. Install the first corrugated plate (1) and the second corrugated plate (2) in stages according to the direction of excavation in the corresponding construction area; S7. Install the concrete formwork and pour the concrete. S8. Demold after the design strength is reached; S9. Concrete is poured to fill the inverted arch inside the base slab. S10, and then seal the surface; S11. Temporary supports are removed, and the next section of tunnel steel arch construction begins; S12. Repeat S2 to S11 until all construction work is completed.

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