CN215860230U - Combined profile steel support of stacked shield tunnel - Google Patents
Combined profile steel support of stacked shield tunnel Download PDFInfo
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- CN215860230U CN215860230U CN202121658588.1U CN202121658588U CN215860230U CN 215860230 U CN215860230 U CN 215860230U CN 202121658588 U CN202121658588 U CN 202121658588U CN 215860230 U CN215860230 U CN 215860230U
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Abstract
The utility model belongs to the technical field of tunnel supporting structures, and discloses a combined steel support of a stacked shield tunnel, which comprises a duct piece, wherein an annular steel support frame is arranged on the inner surface wall of the duct piece, the annular steel support frame comprises a first arc-shaped steel plate, a second arc-shaped steel plate, a third arc-shaped steel plate and a fourth arc-shaped steel plate, the first arc-shaped steel plate, the second arc-shaped steel plate, the third arc-shaped steel plate and the fourth arc-shaped steel plate are sequentially assembled, and first fixing blocks are symmetrically fixed on the lower surface walls of the second arc-shaped steel plate and the third arc-shaped steel plate. Meanwhile, the assembled supporting structure is convenient for subsequent disassembly.
Description
Technical Field
The utility model belongs to the technical field of tunnel supporting structures, and particularly relates to a combined profile steel support of a stacked shield tunnel.
Background
The tunnel is an engineering building buried in the stratum, is a form that the mankind utilized the underground space, in the tunnel, the shield structure method is to impel shield structure machinery in the ground, prevent taking place to collapse in the tunnel through shield shell and section of jurisdiction supporting surrounding rock all around, simultaneously carry out the soil body excavation with cutting device in excavation face the place ahead, carry out the hole through unearthing machinery outside, lean on the jack to pressurize the top at the rear portion, and assemble precast concrete section of jurisdiction, after installing the section of jurisdiction, need utilize bearing structure to carry out the support of precast section of jurisdiction, in order to avoid the section of jurisdiction not hard up and drop.
But present current bearing structure has certain defect, and the stability and the portability of traditional bearing structure installation are relatively poor, need consume great manpower when installing bearing structure, comparatively waste time and energy.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a combined steel support for a fold-down shield tunnel, which aims to solve the problems that the traditional support structure in the background technology is poor in installation stability and portability and wastes time and labor when the support structure is installed.
In order to achieve the purpose, the utility model provides the following technical scheme: a combined steel support for a stacked shield tunnel comprises a duct piece, wherein an annular steel support frame is arranged on the inner surface wall of the duct piece, the annular steel support frame comprises a first arc-shaped steel plate, a second arc-shaped steel plate, a third arc-shaped steel plate and a fourth arc-shaped steel plate, the first arc-shaped steel plate, the second arc-shaped steel plate, the third arc-shaped steel plate and the fourth arc-shaped steel plate are sequentially assembled and installed, first fixed blocks are symmetrically fixed on the lower surface walls of the second arc-shaped steel plate and the third arc-shaped steel plate, second fixed blocks are symmetrically fixed on the upper surface walls of the first arc-shaped steel plate and the fourth arc-shaped steel plate, caulking grooves are formed in the opposite sides of the two first fixed blocks, a transverse supporting rod is arranged between the two first fixing blocks, both ends of the transverse supporting rod are embedded into the caulking grooves, two ends of the outer surface wall of the supporting rod are symmetrically screwed and connected with fastening screws, and a vertical supporting rod is fixed between the first fixing block and the second fixing block and is opposite to the first fixing block in the vertical direction.
Preferably, the butt joint groove has all been seted up to one side of first arc steel sheet towards second arc steel sheet and one side of second arc steel sheet towards third arc steel sheet, the one end of second arc steel sheet towards first arc steel sheet and the one end of third arc steel sheet towards second arc steel sheet all are fixed with the butt joint piece, the installation lug has all been welded to the outer table wall tip of first arc steel sheet and fourth arc steel sheet, the screw has all been seted up to the outer table wall tip of third arc steel sheet and fourth arc steel sheet, the outer table wall of installation lug closes soon and is connected with fastening bolt, fastening bolt closes the inside that is connected to the screw soon.
Preferably, the outside cover of vertical support pole is equipped with the lantern ring, the exterior wall welding of lantern ring has been connect with the pole that supports, the exterior wall of lantern ring closes soon and is connected with fastening bolt.
Preferably, the number of the supporting rods is two, the free end of one of the supporting rods is over against the connecting part of the first arc-shaped steel plate and the second arc-shaped steel plate, and the free end of the other supporting rod is over against the connecting part of the third arc-shaped steel plate and the fourth arc-shaped steel plate.
Preferably, an arc-shaped base plate is arranged at the bottom of the inner portion of the annular steel support frame.
Preferably, the top ends of the transverse supporting rods are symmetrically connected with two supporting vertical rods.
Compared with the prior art, the utility model has the beneficial effects that:
(1) the assembled type annular steel support frame is reasonable in structure and convenient to assemble and carry, the assembled type annular steel support frame is arranged, the installation and butt joint are convenient during preliminary support, and then the two ends of the transverse support rod are only required to be embedded into the caulking grooves and then the fastening screws are screwed when the transverse support rod is installed through the matching of the first fixing block, the caulking grooves and the like, so that the installation is convenient and fast, and meanwhile, the assembled type support structure is convenient to disassemble subsequently.
(2) According to the utility model, through the matching of the butt joint groove and the butt joint block, when the first arc-shaped steel plate, the second arc-shaped steel plate and the third arc-shaped steel plate are butt jointed, the butt joint block can be embedded into the butt joint groove, when the fourth arc-shaped steel plate is installed, only the fourth arc-shaped steel plate is required to be arranged at the gap between the first arc-shaped steel plate and the third arc-shaped steel plate, then the fastening bolt penetrates through the installation lug and is screwed into the screw hole to fix the fourth arc-shaped steel plate, and the installation is rapid and stable.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a schematic structural view of an annular steel support frame of the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 1;
FIG. 4 is an enlarged view of portion B of FIG. 2;
in the figure: 1. a duct piece; 2. an annular steel support frame; 21. a first arc-shaped steel plate; 22. a second arc-shaped steel plate; 23. a third arc-shaped steel plate; 24. a fourth arc-shaped steel plate; 3. a support rod; 4. a transverse support rod; 5. a first fixed block; 6. a vertical support rod; 7. a collar; 8. a second fixed block; 9. an arc-shaped base plate; 10. mounting a bump; 11. a butt joint block; 12. a screw hole; 13. fastening screws; 14. caulking grooves; 15. and (4) butting the grooves.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides the following technical solutions: a combined steel support for a stacked shield tunnel comprises a duct piece 1, an annular steel support frame 2 is arranged on the inner surface wall of the duct piece 1, the annular steel support frame 2 comprises a first arc-shaped steel plate 21, a second arc-shaped steel plate 22, a third arc-shaped steel plate 23 and a fourth arc-shaped steel plate 24, the first arc-shaped steel plate 21, the second arc-shaped steel plate 22, the third arc-shaped steel plate 23 and the fourth arc-shaped steel plate 24 are sequentially assembled and installed, first fixing blocks 5 are symmetrically fixed on the lower surface walls of the second arc-shaped steel plate 22 and the third arc-shaped steel plate 23, second fixing blocks 8 are symmetrically fixed on the upper surface walls of the first arc-shaped steel plate 21 and the fourth arc-shaped steel plate 24, caulking grooves 14 are formed in one sides, opposite to the two first fixing blocks 5, transverse supporting rods 4 are arranged between the two first fixing blocks 5, two ends of the transverse supporting rods 4 are embedded into the caulking grooves 14, two ends of the outer surface walls of the supporting rods 4 are symmetrically screwed and connected with fastening screws 13, vertical supporting rods 6 are fixed between the upper and lower relative first fixing blocks 5 and the second fixing blocks 8, the assembled annular steel supporting frame 2 is arranged, when preliminary supporting is conducted, installation butt joint is convenient, secondly, when the transverse supporting rod 4 is installed, only the two ends of the transverse supporting rod 4 are required to be embedded into the caulking grooves 14 formed in the first fixing blocks 5, and then the fastening screws 13 are screwed, so that the installation is convenient and rapid, and meanwhile, the assembled supporting structure is convenient to follow-up disassembly.
Further, the butt-joint groove 15 is formed in one side of the first arc-shaped steel plate 21 facing the second arc-shaped steel plate 22 and one side of the second arc-shaped steel plate 22 facing the third arc-shaped steel plate 23, the butt-joint block 11 is fixed to one end of the second arc-shaped steel plate 22 facing the first arc-shaped steel plate 21 and one end of the third arc-shaped steel plate 23 facing the second arc-shaped steel plate 22, the mounting convex block 10 is welded to the outer wall end of the first arc-shaped steel plate 21 and the outer wall end of the fourth arc-shaped steel plate 24, the screw hole 12 is formed in the outer wall end of the third arc-shaped steel plate 23 and the outer wall end of the fourth arc-shaped steel plate 24, the outer wall of the mounting convex block 10 is screwed and connected with the fastening bolt, the fastening bolt is screwed and connected to the inside of the screw hole 12, when the first arc-shaped steel plate 21, the second arc-shaped steel plate 22 and the third arc-shaped steel plate 23 are butt-jointed, the butt-joint block 11 is embedded into the butt-joint groove 15, when the fourth arc-shaped steel plate 24 is mounted, the fourth arc-shaped steel plate 24 is placed in the gap between the first arc-shaped steel plate 21 and the third arc-shaped steel plate 23, then, the fastening bolt penetrates through the mounting lug 10 and is screwed into the screw hole 12 to fix the fourth arc-shaped steel plate 24, and the mounting is rapid and stable.
Further, the outside cover of vertical support pole 6 is equipped with lantern ring 7, the exterior wall welding of lantern ring 7 has supported pole 3, the exterior wall of lantern ring 7 closes soon and is connected with fastening bolt, it is equipped with two to support pole 3, one of them free end that supports pole 3 is just to the connection position of first arc steel sheet 21 and second arc steel sheet 22, another free end that supports pole 3 is just to the connection position of third arc steel sheet 23 and fourth arc steel sheet 24, utilize to support pole 3 and can further increase the stability of being connected between first arc steel sheet 21 and second arc steel sheet 22 and third arc steel sheet 23 and the fourth arc steel sheet 24, improve support strength.
Further, the inside bottom of annular steel support frame 2 is equipped with arc backing plate 9, and the arc backing plate 9 that adds can further increase the stability of first arc steel sheet 21 and the 24 connecting portion of fourth arc steel sheet.
Further, the top symmetrical connection of horizontal support rod 4 has the support pole setting, supports the pole setting and is equipped with two, and the bracing piece of addding can further withstand the prefabricated section of jurisdiction in tunnel top, increases the stability of section of jurisdiction.
The working principle and the using process of the utility model are as follows: the utility model discloses a when using, set up assembled annular steel support frame 2, when tentatively supporting, the installation butt joint is convenient, secondly, when installation cross bracing piece 4, only need imbed the both ends of cross bracing piece 4 to the caulking groove 14 of seting up on first fixed block 5 in, then screw fastening screw 13 can, simple to operate is swift, wherein, at first arc steel sheet 21 of butt joint, when second arc steel sheet 22 and third arc steel sheet 23, with butt joint piece 11 imbed to butt joint inslot 15 can, when installing fourth arc steel sheet 24, only need arrange fourth arc steel sheet 24 in the clearance department between first arc steel sheet 21 and the third arc steel sheet 23, then pass fastening bolt installation lug 10 precession screw 12 in carry out the fixed of fourth arc steel sheet 24 can, the installation is swift and stable, in addition, utilize lantern ring 7 outside support pole 3 can further increase first arc steel sheet 21 and second arc steel sheet 22 and third arc steel sheet 23 and fourth arc steel sheet 23 and the arc steel sheet 23 24, the stability of the connection between the two plates improves the supporting strength.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a fold combination shaped steel support that falls shield tunnel which characterized in that: comprises a duct piece (1), wherein an annular steel support frame (2) is arranged on the inner surface wall of the duct piece (1), the annular steel support frame (2) comprises a first arc-shaped steel plate (21), a second arc-shaped steel plate (22), a third arc-shaped steel plate (23) and a fourth arc-shaped steel plate (24), the first arc-shaped steel plate (21), the second arc-shaped steel plate (22), the third arc-shaped steel plate (23) and the fourth arc-shaped steel plate (24) are sequentially assembled and installed, the lower surface walls of the second arc-shaped steel plate (22) and the third arc-shaped steel plate (23) are symmetrically fixed with first fixed blocks (5), the upper surface walls of the first arc-shaped steel plate (21) and the fourth arc-shaped steel plate (24) are symmetrically fixed with second fixed blocks (8), two caulking grooves (14) are formed in one side, opposite to the first fixed blocks (5), and a transverse support rod (4) is arranged between the two first fixed blocks (5), the both ends of horizontal bracing piece (4) all are embedded into the inside of caulking groove (14), the exterior wall both ends symmetry of bracing piece (4) is closed soon and is connected with fastening screw (13), and is relative from top to bottom be fixed with between first fixed block (5) and second fixed block (8) and erect bracing piece (6).
2. The combined steel support for the shield tunnel according to claim 1, wherein: butt joint groove (15) have all been seted up towards one side of second arc steel sheet (22) and second arc steel sheet (22) towards one side of third arc steel sheet (23) in first arc steel sheet (21), one end of second arc steel sheet (22) towards first arc steel sheet (21) and one end of third arc steel sheet (23) towards second arc steel sheet (22) all are fixed with butt joint piece (11), installation lug (10) have all been welded to the outer table wall tip of first arc steel sheet (21) and fourth arc steel sheet (24), screw (12) have all been seted up to the outer table wall tip of third arc steel sheet (23) and fourth arc steel sheet (24), the outward appearance wall of installation lug (10) closes soon and is connected with fastening bolt, fastening bolt closes soon and is connected to the inside of screw (12).
3. The combined steel support for the shield tunnel according to claim 1, wherein: the outer portion of the vertical supporting rod (6) is sleeved with a sleeve ring (7), the outer surface wall of the sleeve ring (7) is welded with the abutting rod (3), and the outer surface wall of the sleeve ring (7) is connected with a fastening bolt in a screwing mode.
4. The combined steel support for the stacked shield tunnel according to claim 3, wherein: the two supporting rods (3) are arranged, the free end portion of one of the supporting rods (3) is over against the connecting portion of the first arc-shaped steel plate (21) and the second arc-shaped steel plate (22), and the free end portion of the other supporting rod (3) is over against the connecting portion of the third arc-shaped steel plate (23) and the fourth arc-shaped steel plate (24).
5. The combined steel support for the shield tunnel according to claim 1, wherein: an arc-shaped base plate (9) is arranged at the bottom of the inner part of the annular steel support frame (2).
6. The combined steel support for the shield tunnel according to claim 1, wherein: the top end of the transverse supporting rod (4) is symmetrically connected with two supporting vertical rods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121658588.1U CN215860230U (en) | 2021-07-21 | 2021-07-21 | Combined profile steel support of stacked shield tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121658588.1U CN215860230U (en) | 2021-07-21 | 2021-07-21 | Combined profile steel support of stacked shield tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215860230U true CN215860230U (en) | 2022-02-18 |
Family
ID=80331097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121658588.1U Expired - Fee Related CN215860230U (en) | 2021-07-21 | 2021-07-21 | Combined profile steel support of stacked shield tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215860230U (en) |
-
2021
- 2021-07-21 CN CN202121658588.1U patent/CN215860230U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220218 |
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| CF01 | Termination of patent right due to non-payment of annual fee |