CN113622942A - Supporting device for tunnel construction - Google Patents
Supporting device for tunnel construction Download PDFInfo
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- CN113622942A CN113622942A CN202110897685.4A CN202110897685A CN113622942A CN 113622942 A CN113622942 A CN 113622942A CN 202110897685 A CN202110897685 A CN 202110897685A CN 113622942 A CN113622942 A CN 113622942A
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- 230000008093 supporting effect Effects 0.000 title claims abstract description 58
- 238000010276 construction Methods 0.000 title claims abstract description 47
- 230000007246 mechanism Effects 0.000 claims abstract description 78
- 210000000078 claw Anatomy 0.000 claims description 22
- 238000003780 insertion Methods 0.000 claims description 14
- 230000037431 insertion Effects 0.000 claims description 14
- 239000004570 mortar (masonry) Substances 0.000 claims description 9
- 230000000712 assembly Effects 0.000 claims description 8
- 238000000429 assembly Methods 0.000 claims description 8
- 230000008878 coupling Effects 0.000 abstract description 9
- 238000010168 coupling process Methods 0.000 abstract description 9
- 238000005859 coupling reaction Methods 0.000 abstract description 9
- 238000009412 basement excavation Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 7
- 230000002349 favourable effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- -1 and simultaneously Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/003—Linings or provisions thereon, specially adapted for traffic tunnels, e.g. with built-in cleaning devices
Abstract
The utility model relates to a supporting device for tunnel construction belongs to the field of tunnel construction equipment, include along tunnel length direction bury underground the pre-buried mechanism in the tunnel entity, set up in the tunnel in order to be used for supporting tight tunnel wall support tight mechanism and be used for connecting pre-buried mechanism and support tight mechanism so that support tight mechanism and support tight tunnel wall's straining device. Before the construction, constructor is pre-buried inside the tunnel entity with embedded mechanism earlier, later along with the excavation in tunnel, constructor supports tight mechanism at tunnel internally mounted to it is taut to support tight mechanism and embedded mechanism to be connected through coupling mechanism, so that support tight mechanism and support tightly in tunnel wall department and play good supporting effect to the tunnel wall, and then reduce the potential safety hazard during the construction. Because pre-buried mechanism and straining device all set up inside the tunnel entity, and then support the tunnel wall and improve the construction security also very big increase the construction space in the tunnel, the staff of being convenient for more operates machinery and carries out the construction operation.
Description
Technical Field
The application relates to the field of tunnel construction equipment, in particular to a supporting device for tunnel construction.
Background
The highway tunnel is a common automobile driving channel, and the tunnel is usually required to be supported in the construction process so as to prevent major life and property accidents caused by the breakdown of the tunnel in the construction process.
Referring to fig. 1, a tunnel generally includes a tunnel wall 200 and a tunnel body 100, and in the related art, chinese patent publication No. CN211975009U, published as 2020, 11, and 20 proposes a supporting device for tunnel construction, which includes a plurality of supporting blocks disposed inside the tunnel to act on the tunnel wall, a plurality of telescopic rods and inclined rods disposed inside the tunnel to provide supporting force to the supporting blocks so that the supporting blocks can abut against the tunnel wall.
With respect to the related art among the above, the inventors consider that the following drawbacks exist: because above-mentioned supporting device sets up inside the tunnel completely, and then easily leads to the interior construction space of tunnel seriously compressed, and then makes the staff be difficult to operate construction machinery.
Disclosure of the invention
In order to play good supporting role to the tunnel, improve the inside construction space in tunnel simultaneously and reduce the inside construction degree of difficulty in tunnel, this application provides a supporting device for tunnel construction.
The application provides a pair of supporting device for tunnel construction relates to following technical scheme:
the utility model provides a supporting device for tunnel construction, includes along the tunnel length direction bury underground the pre-buried mechanism in the tunnel entity, set up in the tunnel in order to be used for supporting tight tunnel wall support tight mechanism and be used for connecting pre-buried mechanism and support tight mechanism so that support tight mechanism and support tight tunnel wall's straining device.
Through adopting above-mentioned technical scheme, before the construction, constructor is with pre-buried in the tunnel entity inside of pre-buried mechanism earlier, later along with the excavation in tunnel, constructor supports tight mechanism at tunnel internally mounted to will support tight mechanism and pre-buried mechanism and be connected tautly through coupling mechanism, so that support tight mechanism and support tight in tunnel wall department and play good supporting effect to the tunnel wall, and then reduce the potential safety hazard during construction. Because pre-buried mechanism and straining device all set up inside the tunnel entity, and then support the tunnel wall and improve the construction security also very big increase the construction space in the tunnel, the staff of being convenient for more operates machinery and carries out the construction operation.
Optionally, the pre-buried mechanism includes a plurality of pre-buried plates, the plurality of pre-buried plates are arranged along the circumferential direction of the tunnel, the tunnel entity is provided with a plurality of pre-buried grooves used for placing the pre-buried plates along the length direction of the tunnel, the pre-buried plates are arranged in the pre-buried grooves in a penetrating manner, and the pre-buried mechanism further includes an auxiliary fixing assembly connected with the pre-buried plates for fixing the positions of the auxiliary fixing assembly.
Through adopting above-mentioned technical scheme, the setting of embedded groove can be convenient for the staff and insert the built-in board to the tunnel entity inside, simultaneously, supplementary fixed subassembly can assist fixedly to the position of built-in board for the built-in board is difficult for producing at the during operation and rocks, and then improves the stability of built-in board during operation, improves the effect of strutting to the tunnel wall simultaneously.
Optionally, the cavity is seted up along its length direction to the built-in panel and is led to the groove, supplementary fixed subassembly includes many grafting claws and a pair of grafting rectangular of wearing to locate the logical inslot of cavity, the rectangular width direction that leads to the groove along the cavity of grafting slides and sets up at the logical inslot of cavity, and grafting claw symmetry is divided and is established at the rectangular different sides of a pair of grafting, the cavity leads to the lateral wall of groove and has seted up a plurality of grafting through-holes along the rectangular traffic direction symmetry of grafting, the grafting claw passes grafting through-hole and the rectangular fixed connection of grafting, it is connected with and is used for driving its drive assembly who keeps away from each other so that the grafting claw passes the grafting through-hole to peg graft.
Through adopting above-mentioned technical scheme, when constructor need further when the position of fixed pre-buried board in the embedded groove, drive assembly control grafting rectangular keeps away from each other, and then makes the grafting claw can insert to the tunnel entity inside to play certain fixed action to the pre-buried board.
Optionally, the drive assembly includes that a pair of top of parallel arrangement each other moves the board and a plurality of sets up the double-pole top between a pair of top moves the board and moves the pneumatic cylinder, the piston rod that the pneumatic cylinder was moved in the double-pole top moves the board with the top and sets up perpendicularly, and the piston rod that the pneumatic cylinder was moved in the double-pole top moves board fixed connection with the top, the top is moved the board and is supported tightly the setting with the grafting rectangular.
Through adopting above-mentioned technical scheme, place in the inside back of embedded groove when the embedded plate, the piston rod that the pneumatic cylinder was moved in the steerable double-pole top of staff stretches, and then makes the rectangular orientation of pegging graft move towards the direction of keeping away from each other to peg graft rectangular control grafting claw and insert to the tunnel entity in, and then make the embedded plate more stable at the during operation. The piston rod of the double-rod jacking hydraulic cylinder extends, so that a constructor can drive the splicing claw to be inserted into the tunnel entity conveniently.
Optionally, the tightening mechanism includes a plurality of tightening assemblies, the tightening assembly includes an arc plate and a pair of supporting plates, the arc plate is tightened to the top of the tunnel wall, the supporting plates are arranged on two sides of the tunnel to tighten the bottom of the tunnel wall, the tightening mechanism further includes a supporting rod assembly for supporting the fixed supporting plate and the arc plate, and the plurality of tightening assemblies are arranged along the length direction of the tunnel.
Through adopting above-mentioned technical scheme, arc and backup pad can play the effect of supporting tight support to the tunnel wall, and the branch subassembly can be used to joint support board and arc, improves the stability of arc and backup pad during operation, and then improves the effect of strutting to the tunnel wall.
Optionally, the tensioning mechanism comprises a plurality of tensioning chains, a plurality of connecting hooks and a plurality of groups of connecting assemblies, the connecting hooks are fixedly connected with the embedded plate, the connecting hooks are arranged at equal intervals along the length direction of the embedded plate, the tunnel entity is provided with connecting holes, one end of each tensioning chain penetrates through the connecting holes to be connected with the connecting hooks in a hanging mode, and the other end of each tensioning chain is fixedly connected with the arc-shaped plate or the supporting plate through the connecting assemblies.
Through adopting above-mentioned technical scheme, taut chain can be used to connect pre-buried board and arc or connect pre-buried board and backup pad, and then makes arc or backup pad can play the support to the tunnel wall and support tight effect, and simultaneously, taut chain can be convenient for constructor and pass the connecting hole, and then has reduced the construction degree of difficulty.
Optionally, the connecting assembly includes a threaded connecting column and a threaded connecting block, one end of the threaded connecting column is fixedly connected to the tensioning chain, the arc-shaped plate or the supporting plate is provided with a through hole, and the other end of the threaded connecting column penetrates through the through hole and is in threaded connection with the threaded connecting block.
Through adopting above-mentioned technical scheme, constructor is when connecting screw thread spliced pole and threaded connection piece two, and constructor can pass the perforation with the one end of screw thread spliced pole earlier, and the while is fixed screw thread spliced pole so that it is difficult for taking place the axial and rotate, later, the staff rotates threaded connection piece to make threaded connection piece support tight arc or backup pad, and then make arc or backup pad support tight tunnel wall, in order to play the supporting role to tunnel wall. The setting of coupling assembling can be convenient for constructor with take-up mechanism with support tight mechanism and be connected, simultaneously, coupling assembling shared space is less, is favorable to improving the inside construction space of tunnel.
Optionally, concrete mortar is filled in the connecting hole.
Through adopting above-mentioned technical scheme, the tensile strength of straining mechanism can further be improved in setting up of concrete mortar, and simultaneously, concrete mortar can plug up the connecting hole after solidifying in the connecting hole, has strengthened the joint strength of straining mechanism and tunnel entity for backup pad and arc are difficult to the pulling taut chain, have further improved the supporting effect of backup pad and arc to the tunnel wall.
Optionally, the supporting rod assembly comprises a pair of supporting rods, the supporting rods are symmetrically arranged about a central axis of the tunnel, one ends of the supporting rods are fixedly connected with the supporting plate, and the other ends of the supporting rods are fixedly connected with the arc-shaped plate.
Through adopting above-mentioned technical scheme, bracing piece one end is fixed with the backup pad, and the other end is fixed and then improved the joint strength between backup pad and the arc with the arc, has improved to support tight mechanism and has supported the effect of tight support tunnel wall.
In summary, the present application includes at least one of the following advantageous technical effects:
1. the setting of supporting device: before the construction, constructor is pre-buried inside the tunnel entity with embedded mechanism earlier, later along with the excavation in tunnel, constructor supports tight mechanism at tunnel internally mounted to it is taut to support tight mechanism and embedded mechanism to be connected through coupling mechanism, so that support tight mechanism and support tightly in tunnel wall department and play good supporting effect to the tunnel wall, and then reduce the potential safety hazard during the construction. Because the pre-buried mechanism and the tensioning mechanism are arranged inside the tunnel entity, the construction space in the tunnel is greatly increased while the construction safety is improved by supporting the tunnel wall, and the operation of a machine by a worker is more convenient;
2. the setting of coupling assembling: constructor is when connecting screw thread spliced pole and threaded connection piece two, constructor can pass the perforation with the one end of screw thread spliced pole earlier, and the while is fixed the screw thread spliced pole so that it is difficult for taking place the axial and rotate, later, the staff rotates the threaded connection piece to make the threaded connection piece support tight arc or backup pad, and then make arc or backup pad support tight tunnel wall, in order to play the supporting role to the tunnel wall. The setting of coupling assembling can be convenient for constructor with take-up mechanism with support tight mechanism and be connected, simultaneously, coupling assembling shared space is less, is favorable to improving the inside construction space of tunnel.
Drawings
FIG. 1 is a related art drawing;
FIG. 2 is a schematic view of the overall structure of an embodiment of the present application when concrete mortar is not poured;
FIG. 3 is a schematic connection diagram of the fastening mechanism and the pre-embedded mechanism in the embodiment of the present application;
FIG. 4 is an enlarged schematic view of portion A of FIG. 3;
fig. 5 is a schematic structural view of a tensioning mechanism in an embodiment of the present application.
Description of reference numerals: 100. a tunnel entity; 110. connecting holes; 120. pre-burying a groove; 200. a tunnel wall; 300. pre-embedding a mechanism; 310. pre-burying a plate; 311. a cavity through groove; 312. inserting and connecting the bulges; 313. inserting grooves; 330. an auxiliary fixing component; 331. inserting a strip; 332. a plug-in claw; 340. a drive assembly; 341. jacking the movable plate; 342. a double-rod jacking hydraulic cylinder; 343. a slide rail; 344. a slider; 400. a tightening mechanism; 411. an arc-shaped plate; 412. a support plate; 420. perforating; 430. abutting against the flat wall; 440. a support bar; 500. a tensioning mechanism; 510. tensioning the chain; 520. a connecting hook; 530. a threaded connection post; 531. connecting the columns; 532. a connector; 540. and (4) connecting the threaded connection blocks.
Detailed Description
The present application is described in further detail below with reference to figures 2-5.
The embodiment of the application discloses a supporting device for tunnel construction. Referring to fig. 2, a supporting apparatus for tunnel construction includes a pre-buried mechanism 300, a tightening mechanism 400, and a tightening mechanism 500. The pre-buried mechanism 300 is buried in the inside of the tunnel body 100 along the length direction of the tunnel, and the pre-buried mechanism 300 is arranged along the circumferential direction of the tunnel. The abutting mechanism 400 is arranged in the tunnel to act on the tunnel wall 200, the tensioning mechanism 500 is connected with the pre-embedded mechanism 300 and the abutting mechanism 400, and the abutting mechanism 400 abuts against the tunnel wall 200 through the tensioning mechanism 500, so that a certain supporting effect is achieved on the tunnel. Because pre-buried mechanism 300 and straining device 500 all set up in the inside of tunnel entity 100, the supporting device is when playing the effect of strutting to the tunnel, also can be by a relatively large margin improvement construction space in the tunnel, and then the constructor of being convenient for operates construction machinery.
Fig. 2 and fig. 3, the pre-buried mechanism 300 includes the pre-buried board 310, and the pre-buried board 310 has arranged the polylith along the circumference in tunnel, tunnel entity 100 has seted up many pre-buried grooves 120 that are used for placing pre-buried board 310 along tunnel length direction, pre-buried board 310 wears to locate in pre-buried groove 120, can set up polylith pre-buried board 310 in the same pre-buried groove 120, the one end integrated into one piece of pre-buried board 310 has grafting arch 312, grafting recess 313 has been seted up to the other end of pre-buried board 310, two adjacent pre-buried boards 310 are pegged graft the setting through grafting arch 312 and grafting recess 313 in the same pre-buried groove 120.
The tightening mechanism 400 includes tightening members, and the tightening members are provided with a plurality of pairs, and the pairs of tightening members are arranged along the length direction of the tunnel. The abutting assembly comprises an arc plate 411 and a pair of supporting plates 412, the arc plate 411 abuts against the top of the tunnel wall 200 to support the top of the tunnel wall 200, and the supporting plates 412 are arranged below the arc plate 411 and are respectively arranged on different sides of the tunnel to abut against the side portions of the tunnel wall 200.
Referring to fig. 2, 4 and 5, the tensioning mechanism 500 includes a plurality of tensioning chains 510, a plurality of connecting hooks 520 and a plurality of sets of connecting members. The connecting hooks 520 are welded with the side wall of the embedded plate 310 facing the tunnel, the connecting hooks 520 are arranged at equal intervals along the length direction of the embedded plate 310, the tunnel body 100 is provided with connecting holes 110, in the embodiment, the connecting holes 110 are perpendicular to the plate surface of the embedded plate 310, the tension chain 510 is arranged along the length direction of the connecting holes 110, one end of the tension chain 510 penetrates through the connecting holes 110 to be hung with the connecting hooks 520, and the other end of the tension chain 510 is fixedly connected with the arc-shaped plate 411 or the supporting plate 412 through a connecting assembly.
The connection assembly includes a threaded connection post 530 and a threaded connection block 540. The threaded connection column 530 comprises a connection column 531 and a connection head 532, the connection column 531 is a polygonal column, the connection column 531 is a regular hexagon column in the embodiment, the connection head 532 is cylindrical and is coaxially and fixedly connected with the end of the connection column 531, an external thread is formed on the side wall of the connection head 532, one end of the connection column 531, which deviates from the connection head 532, is welded with the tensioning chain 510, a through hole 420 in the shape of a regular hexagon is formed in the arc plate 411 or the support plate 412, one end of the connection column 531 penetrates through the through hole 420 and is in sliding fit with the side wall of the through hole 420, so that the connection column 531 is difficult to axially rotate, the threaded connection block 540 is in threaded connection with the connection head 532 to tightly support the support plate 412 or the arc plate 411 at the tunnel wall 200, and the support plate 412 and the arc plate 411 can support the tunnel wall 200.
Referring to fig. 3, in order to facilitate the threaded connection block 540 to compress the arc plate 411, the side wall of the arc plate 411 is integrally formed with a abutting flat wall 430, and the wall surface of the abutting flat wall 430 facing the central axis of the tunnel is planar, so that the threaded connection block 540 and the arc plate 411 can be connected more stably and firmly. In this embodiment, three abutting flat walls 430 are provided, and each abutting flat wall 430 is connected to at least one threaded connection post 530 and one tightening chain 510.
In order to improve the stability of being connected between arc 411 and the backup pad 412, each group supports tight subassembly and all is connected with a set of branch subassembly that is used for connecting backup pad 412 and arc 411 at least, and the branch subassembly includes a pair of bracing piece 440, and bracing piece 440 sets up about the axis symmetry in tunnel, and the one end and the backup pad 412 welding of bracing piece 440, the other end and the arc 411 welding of bracing piece 440.
Referring to fig. 2, 3 and 4, in order to improve the connection stability of the embedment plate 310 and the tunnel entity 100, the embedment mechanism 300 further includes an auxiliary fixing assembly 330. The embedded plate 310 is provided with a cavity through groove 311 along the length direction thereof, the auxiliary fixing component 330 comprises a pair of insertion strips 331 and a plurality of insertion claws 332, the insertion strips 331 penetrate through the cavity through groove 311, and the insertion strips 331 are arranged in the cavity through groove 311 along the width direction of the cavity through groove 311 in a sliding manner. The plugging strip 331 has a large friction force with the side wall of the cavity through slot 311, so that the plugging strip 331 is difficult to accidentally slide in a non-working state. The plugging claws 332 are perpendicular to the plugging strip 331 and are respectively arranged on different sides of the plugging strip 331, and the plugging claws 332 are welded with the plugging strip 331. The side wall of the cavity through slot 311 is symmetrically provided with a plurality of plugging through holes along the running direction of the plugging strip 331, the plugging claws 332 penetrate through the plugging through holes to be welded with the plugging strip 331, and the plugging claws 332 are arranged in a sliding fit with the side wall of the plugging through holes. After the embedded plate 310 is inserted into the embedded groove 120, the constructor can drive the insertion strip 331 to move in a direction away from each other, so that the insertion claw 332 passes through the insertion through hole to be inserted into the tunnel entity 100. To facilitate the insertion of the operator driven plug-in claw 332 into the interior of the tunnel entity 100, a drive assembly 340 is connected to the plug-in strip 331.
The driving assembly 340 includes a pair of pushing plates 341 and a plurality of double-rod pushing hydraulic cylinders 342, the pushing plates 341 penetrate the through slot 311 and are located between the pair of insertion strips 331, the double-rod pushing hydraulic cylinders 342 are all disposed between the pair of pushing plates 341, piston rods of the double-rod pushing hydraulic cylinders 342 are vertically fixed to the pushing plates 341, and the pushing plates 341 and the insertion strips 331 are tightly abutted. In order to facilitate the driving assembly 340 to drive the insertion claws 332 in the through grooves 311 of the cavity to operate, the cylinder body of the double-rod jacking hydraulic cylinder 342 is fixedly connected with a sliding block 344, each through groove 311 of the cavity is provided with a sliding rail 343, the end parts of adjacent sliding rails 343 are tightly abutted against each other, and the sliding block 344 is slidably arranged at the sliding rail 343.
Referring to fig. 2 and 3, in order to improve the tensile strength of the tension chain 510, after the threaded connection block 540 is pressed against the arc plate 411 and the support plate 412, a worker may fill concrete mortar into the connection hole 110. Meanwhile, in order to improve the structural strength of the embedment plate 310, a worker may take out the driving assembly 340 from the inside of the cavity through slot 311 to pour concrete mortar into the cavity through slot 311 and the gap between the embedment plate 310 and the embedment slot 120, so that the insertion claw 332 works more stably and reliably inside the tunnel entity 100.
The implementation principle of the embodiment of the application is as follows: during construction, constructor can set up embedded groove 120 in tunnel entity 100 earlier, and wear to locate embedded plate 310 inside embedded groove 120, later, set up connecting hole 110 in tunnel entity 100, and pass connecting hole 110 with taut chain 510 and be connected with coupling hook 520, later, constructor erects arc 411 and backup pad 412, so that threaded connection piece 540 and threaded connection post 530 threaded connection, and then make threaded connection piece 540 compress tightly backup pad 412 and arc 411, later, staff erection bracing pole 440. Then, the constructor controls the double-rod jacking hydraulic cylinder 342 so that the insertion claws 332 are inserted into the inside of the tunnel entity 100, and then, the constructor moves the driving assembly 340 and pours the concrete mortar into the cavity through grooves 311 and the gaps between the embedment plates 310 and the embedment grooves 120 and pours the concrete mortar into the connection holes 110.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. The utility model provides a supporting device for tunnel construction which characterized in that: the tunnel wall tightening mechanism comprises an embedded mechanism (300) embedded in a tunnel entity (100) along the length direction of the tunnel, a tightening mechanism (400) arranged in the tunnel and used for tightening a tunnel wall (200), and a tightening mechanism (500) used for connecting the embedded mechanism (300) and the tightening mechanism (400) to enable the tightening mechanism (400) to tighten the tunnel wall (200).
2. The support device for tunnel construction according to claim 1, characterized in that: the embedded mechanism (300) comprises a plurality of embedded plates (310), the embedded plates (310) are arranged along the circumferential direction of the tunnel, a plurality of embedded grooves (120) used for placing the embedded plates (310) are formed in the tunnel body (100) along the length direction of the tunnel, the embedded plates (310) penetrate through the embedded grooves (120), and the embedded mechanism (300) further comprises an auxiliary fixing component (330) connected with the embedded plates (310) to fix the positions of the embedded plates.
3. The support device for tunnel construction according to claim 2, characterized in that: the cavity is led to groove (311) has been seted up along its length direction in pre-buried board (310), supplementary fixed subassembly (330) include many plug-in claws (332) and a pair of rectangular (331) of grafting of wearing to locate in the logical groove (311) of cavity, the width direction that logical groove (311) were led to along the cavity in rectangular (331) of grafting (331) slides and sets up in the logical groove (311) of cavity, and plug-in claws (332) symmetry branch is established in the different sides of a pair of rectangular (331) of grafting, the lateral wall that logical groove (311) of cavity has seted up a plurality of grafting through-holes along the traffic direction symmetry of the rectangular (331) of grafting, plug-in claws (332) pass the grafting through-hole and peg graft rectangular (331) fixed connection, it keeps away from each other so that plug-in claws (332) pass drive assembly (340) of grafting through-hole to peg graft rectangular (331).
4. The support device for tunnel construction according to claim 3, characterized in that: the driving assembly (340) comprises a pair of jacking plates (341) arranged in parallel and a plurality of double-rod jacking hydraulic cylinders (342) arranged between the jacking plates (341), piston rods of the double-rod jacking hydraulic cylinders (342) are perpendicular to the jacking plates (341), the piston rods of the double-rod jacking hydraulic cylinders (342) are fixedly connected with the jacking plates (341), and the jacking plates (341) are tightly abutted to the insertion strips (331).
5. The support device for tunnel construction according to claim 2, characterized in that: the supporting mechanism (400) comprises a plurality of groups of supporting assemblies, each supporting assembly comprises an arc-shaped plate (411) and a pair of supporting plates (412), each arc-shaped plate (411) is supported against the top of the tunnel wall (200), the supporting plates (412) are arranged on two sides of the tunnel to support the bottom of the tunnel wall (200), each supporting mechanism (400) further comprises a supporting rod assembly used for supporting and fixing the corresponding supporting plate (412) and the corresponding arc-shaped plate (411), and the plurality of groups of supporting assemblies are arranged along the length direction of the tunnel.
6. The support device for tunnel construction according to claim 5, characterized in that: the tensioning mechanism (500) comprises a plurality of tensioning chains (510), a plurality of connecting hooks (520) and a plurality of groups of connecting assemblies, the connecting hooks (520) are fixedly connected with the embedded plate (310), the connecting hooks (520) are arranged along the length direction of the embedded plate (310), the connecting hooks (520) are fixedly connected with the embedded plate (310), the tunnel entity (100) is provided with connecting holes (110), one end of each tensioning chain (510) penetrates through the connecting holes (110) to be connected with the connecting hooks (520) in a hanging mode, and the other end of each tensioning chain (510) is fixedly connected with the arc-shaped plate (411) or the supporting plate (412) through the connecting assemblies.
7. The support device for tunnel construction according to claim 6, characterized in that: the connecting assembly comprises a threaded connecting column (530) and a threaded connecting block (540), one end of the threaded connecting column (530) is fixedly connected with the tensioning chain (510), a through hole (420) is formed in the arc-shaped plate (411) or the supporting plate (412), and the other end of the threaded connecting column (530) penetrates through the through hole (420) and is in threaded connection with the threaded connecting block (540).
8. The support device for tunnel construction according to claim 7, characterized in that: concrete mortar is filled in the connecting holes (110).
9. The support device for tunnel construction according to claim 5, characterized in that: the branch subassembly includes a pair of bracing piece (440), the bracing piece sets up about the axis symmetry in tunnel, the one end and the backup pad (412) fixed connection of bracing piece (440), the other end and arc (411) fixed connection of bracing piece (440).
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| CN202110897685.4A CN113622942A (en) | 2021-08-05 | 2021-08-05 | Supporting device for tunnel construction |
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| CN202110897685.4A CN113622942A (en) | 2021-08-05 | 2021-08-05 | Supporting device for tunnel construction |
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| CN208650862U (en) * | 2018-07-31 | 2019-03-26 | 中交基础设施养护集团有限公司 | A kind of anti-collapse suspension device of constructing tunnel |
| CN109209434A (en) * | 2018-10-31 | 2019-01-15 | 上海隧道工程有限公司 | Built-in type section of jurisdiction gasket and its built-in process |
| CN210420947U (en) * | 2019-07-22 | 2020-04-28 | 漳州鑫永顺智能设备有限公司 | Hydraulic lifting column with shallow embedded depth |
| CN111472811A (en) * | 2020-04-17 | 2020-07-31 | 中国人民解放军63921部队 | Assembled integral GFRP-framework concrete mouth lining structure for rapid repair of tunnel mouth and rapid repair method |
| CN111577320A (en) * | 2020-05-22 | 2020-08-25 | 河南城建学院 | High security civil engineering tunnel support |
| CN113027496A (en) * | 2021-04-07 | 2021-06-25 | 凌振英 | Supporting device for in-out section of shallow-buried large-diameter shield tunnel |
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