CN218759944U - Collapsible combination formula steel bow member in tunnel - Google Patents
Collapsible combination formula steel bow member in tunnel Download PDFInfo
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- CN218759944U CN218759944U CN202222698294.2U CN202222698294U CN218759944U CN 218759944 U CN218759944 U CN 218759944U CN 202222698294 U CN202222698294 U CN 202222698294U CN 218759944 U CN218759944 U CN 218759944U
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Abstract
The utility model discloses a foldable combined steel arch center for tunnels, which comprises a vault steel frame, hinges and side wall steel frames, wherein the hinges and the side wall steel frames are symmetrically connected to the end parts of two sides of the vault steel frame; the whole steel arch centering of tunnel section can be spliced and folded after completion, road transportation is convenient, and the problem of assembling and transporting of large-scale steel frame is solved, so that the foldable combined steel arch centering is applied to the construction of excavation and support of the tunnel by a mining method, and the foldable combined steel arch centering has practical significance.
Description
Technical Field
The utility model belongs to the technical field of the construction is strutted in the tunnel excavation, concretely relates to collapsible combination formula steel bow member in tunnel.
Background
When the steel arch frames are adopted for excavation and post-construction protection in the mine method tunnel engineering, at present, a plurality of sections of steel arch frames are mostly spliced manually, and in the operation process, the arch frames are generally required to be shouldered manually for butt joint of spliced plates and bolts, so that the requirements on the physical strength of workers and an installation platform are high; meanwhile, a worker is directly exposed under the support of the steel arch frame, the worker faces the risk that the steel arch frame falls off and is injured by crashing objects all the time, the steel arch frame falls off and is injured by crashing objects very easily, and the safety risk of constructors is high. If the mechanical support operation is adopted in the tunnel, the single steel frame is required to be assembled for many times, which wastes time and labor. If the full-section steel frame is integrally assembled, the problems of overlarge steel frame size and difficult road transportation are faced.
SUMMERY OF THE UTILITY MODEL
To exist not enough among the prior art, the utility model aims to provide a collapsible combination formula steel bow member in tunnel that simple structure, convenient operation, preparation and use maintenance cost are low.
In order to achieve the above purpose, the technical scheme of the utility model is that: the utility model provides a collapsible combination formula steel bow member in tunnel, includes vault steelframe, articulated joint and side wall steelframe, and articulated joint and side wall steelframe symmetric connection are at the tip of vault steelframe both sides, and the one end of articulated joint is connected on the vault steelframe, and the other end of articulated joint is connected on the side wall steelframe, and the side wall steelframe rotates through the articulated joint to be connected and realizes folding on the vault steelframe.
Further, both ends of vault steelframe are equipped with and connect board I, and the one end that side wall steelframe and vault steelframe are connected is equipped with and connects board II, and the one end that the vault steelframe was kept away from to the side wall steelframe is equipped with and connects board III, connects board I, is equipped with the connecting hole on board II and the joint board III, and the one end of articulated joint is passed through bolt cooperation and is connected with the joint board I on the vault steelframe, and the other end of articulated joint passes through bolt cooperation and is connected with the joint board II on the side wall steelframe.
Furthermore, the hinge comprises a hinge inner plate and a hinge outer plate, the hinge inner plate is connected to the joint plate I, the hinge outer plate is connected to the joint plate II, and the hinge inner plate is rotatably connected with the hinge outer plate through a bolt.
Furthermore, the inner plate of the hinge joint is of a pi-shaped structure, the outer plate of the hinge joint is of a U-shaped structure, splicing screw holes respectively connected with the joint plate I and the joint plate II are formed in the bottom plates of the inner plate of the hinge joint and the outer plate of the hinge joint, corresponding through holes are formed in the side walls of the inner plate of the hinge joint and the outer plate of the hinge joint, the inner plate of the hinge joint is inserted into the outer plate of the hinge joint, bolts penetrate through the through holes in the side walls of the inner plate of the hinge joint and the outer plate of the hinge joint and are fixed through nuts, and the inner plate of the hinge joint is rotatably connected with the outer plate of the hinge joint.
Furthermore, one end, far away from the bottom plate, of the side wall of the outer hinge joint plate is of an arc structure, and the arc structure at the end part of the side wall of the outer hinge joint plate is in contact with the bottom plate of the inner hinge joint plate.
Further, the steel arch center still includes supporting fastener, and supporting fastener is installed in the articulated joint position, and supporting fastener wraps up the articulated joint, and supporting fastener is located and connects between board I and the board II.
Furthermore, the steel arch center still includes the reinforcement reinforcing bar, and the reinforcement reinforcing bar is located the bottom of supporting fastener, and the reinforcement reinforcing bar welds on adapter plate II, and supporting fastener welds on the reinforcement reinforcing bar.
Further, supporting fastener includes fastener I and fastener II, and the both sides portion of fastener I is equipped with fastener otic placode I, and the both sides portion of fastener II is equipped with fastener otic placode II, all is equipped with the through-hole that is used for connecting on fastener otic placode I and the fastener otic placode II, and when fastener I and II locks of fastener, fastener otic placode I and II coincidences of fastener otic placode, the bolt passes through-hole on fastener otic placode I and the fastener otic placode II and links together fastener I and fastener II.
Further, fastener I and fastener II are U type structure, form square cavity behind fastener I and the II locks of fastener, and the hinge is arranged in square cavity.
Adopt the utility model discloses technical scheme's advantage does:
1. the utility model discloses collapsible combination formula steel bow member in tunnel, structural design is ingenious, the cost of preparation and use maintenance is low, through hinge and supporting fastener, solve the problem of assembling of the mechanization of steel bow member, simultaneously, utilize hinge and supporting fastener, can accomplish the back with the whole steel bow member concatenation of tunnel section and fold, the road transportation of being convenient for solves assembling and the transportation problem of large-scale steelframe, so it has its realistic meaning to use collapsible combination formula steel bow member in the construction is strutted in the mine method tunnel excavation.
2. The utility model discloses great practicality and economic nature have. Taking the mechanized supporting of a high-altitude operation vehicle as an example for a tunnel in a certain mining method, the foldable combined type steel arch for the tunnel is utilized to perform supporting operation after tunnel excavation, the erection construction of the steel arch can be quickly completed by folding the combined type steel arch and the high-altitude operation vehicle under the condition that a large number of constructors only need 2-3 constructors, the supporting task after tunnel excavation is excellently completed with low cost investment, and good economic benefit is obtained.
Drawings
The invention will be described in further detail with reference to the following drawings and detailed description:
fig. 1 is a schematic structural view of the foldable combined steel arch of the utility model;
fig. 2 is a schematic view of the hinge joint structure of the present invention;
FIG. 3 is a schematic view of the structure of the fastener of the present invention;
fig. 4 is a schematic view of the installation of the foldable combined steel arch of the present invention;
FIG. 5 is a schematic view of the steel arch of the present invention folded when in use;
fig. 6 is a semi-automatic erection diagram of the steel arch of the present invention.
The labels in the above figures are respectively: 1. vault steel frame; 2. a hinge joint; 21. a hinge head inner plate; 22. a hinge joint outer plate; 23. splicing screw holes; 3. side wall steel frames; 41. a joint plate I; 42. a joint plate II; 43. a joint plate III; 5. a matched fastener; 51. a fastener I; 52. a fastener II; 53. a fastener ear plate I; 54. a fastener ear plate II; 55. a bolt; 6. provided is an overhead working truck.
Detailed Description
In the present invention, it is to be understood that the term "length"; "Width"; "Up"; "Down"; "front"; "Back"; "left"; "Right"; "vertical"; "horizontal"; "Top"; "bottom" "inner"; "outer"; "clockwise"; "counterclockwise"; "axial"; "planar direction"; the directional or positional relationship indicated as "circumferential" or the like is based on the directional or positional relationship shown in the drawings, and is only for convenience of description and simplified description, and does not indicate or imply that the device or element referred to must have a particular orientation; constructed and operative in a particular orientation and therefore should not be construed as limiting the invention.
As shown in fig. 1 to 6, the foldable combined steel arch center for the tunnel comprises a vault steel frame 1, hinges 2 and side wall steel frames 3, wherein the hinges 2 and the side wall steel frames 3 are symmetrically connected to the end parts of two sides of the vault steel frame 1, one end of each hinge 2 is connected to the vault steel frame 1, the other end of each hinge 2 is connected to the side wall steel frame 3, and the side wall steel frames 3 are rotatably connected to the vault steel frames 1 through the hinges 2 to realize folding; the whole steel arch centering of tunnel section can be spliced and folded, road transportation is facilitated, the problem of splicing and transportation of large steel frames is solved, and therefore the foldable combined steel arch centering is applied to tunnel excavation supporting construction of a mine method and has practical significance.
Both ends of vault steelframe 1 are equipped with and connect board I41, the one end that side wall steelframe 3 is connected with vault steelframe 1 is equipped with and connects board II 42, the one end that side wall steelframe 3 kept away from vault steelframe 1 is equipped with and connects board III 43, connect board I41, it is equipped with the connecting hole on board II 42 and the joint board III 43 to connect, the one end of articulated joint 2 is passed through bolt cooperation and is connected with the board I41 that connects on the vault steelframe 1, the other end of articulated joint 2 passes through bolt cooperation and is connected with the board II 42 that connects on the side wall steelframe 3, it is connected with the ground through rag bolt to connect board III 43.
Specifically, I-steel or H-shaped steel is adopted to manufacture a single-section steel frame, the length and the bending radian of the single-section steel frame are divided into sections according to the design requirement of the tunnel, joint plates are welded on two sides of the steel arch frame, the joint plates are square, mechanically perforated and connected with the hinged joint through bolts, and the foldable combined type steel arch frame is mutually connected through the hinged joint.
The hinge 2 comprises a hinge inner plate 21 and a hinge outer plate 22, the hinge inner plate 21 is connected to the joint plate I41, the hinge outer plate 22 is connected to the joint plate II 42, and the hinge inner plate 21 is rotatably connected with the hinge outer plate 22 through bolts. The hinge joint inner plate 21 is of an n-shaped structure, the hinge joint outer plate 22 is of a U-shaped structure, splicing screw holes 23 respectively connected with the joint plate I41 and the joint plate II 42 are formed in bottom plates of the hinge joint inner plate 21 and the hinge joint outer plate 22, the hinge joint inner plate 21 and the hinge joint outer plate 22 are respectively fixedly connected with the joint plate I41 and the joint plate II 42 through bolts, corresponding through holes 24 are formed in the side walls of the hinge joint inner plate 21 and the hinge joint outer plate 22, the hinge joint inner plate 21 is inserted into the hinge joint outer plate 22, the bolts penetrate through the through holes in the side walls of the hinge joint inner plate 21 and the hinge joint outer plate 22 and are fixed through nuts, the hinge joint inner plate 21 is rotatably connected with the hinge joint outer plate 22, and accordingly folding between the side wall steel frame 3 and the vault steel frame 1 is achieved.
The end, far away from the bottom plate, of the side wall of the hinge joint outer plate 22 is of an arc structure, the arc structure at the end part of the side wall of the hinge joint outer plate 22 is in contact with the bottom plate of the hinge joint inner plate 21, the limiting effect is achieved, and the hinge joint inner plate 21 and the hinge joint outer plate 22 can be prevented from moving.
The single steel frame is connected with each other through the hinge joint by using the bolt, and in the transportation process, the steel frame below the integral steel arch is folded by using the hinge joint, so that the road transportation is facilitated.
The steel bow member still includes supporting fastener 5, and supporting fastener 5 is installed in articulated joint 2 position, and supporting fastener 5 parcel articulated joint 2, supporting fastener 5 are located and connect between I41 of board and the board II 42 of joint. Supporting fastener 5 is placing the steel bow member and is strutting the position, just uses when side wall steelframe 3 is opened, and its purpose prevents to rotate between side wall steelframe 3 and the vault steelframe 1, guarantees the support of side wall steelframe 3 to vault steelframe 1.
Supporting fastener 5 includes fastener I51 and fastener II 52, the both sides portion of fastener I51 is equipped with fastener otic placode I53, the both sides portion of fastener II 52 is equipped with fastener otic placode II 54, all be equipped with the through-hole that is used for connecting on fastener otic placode I53 and the fastener otic placode II 54, when fastener I51 was buckled with fastener II 52, the coincidence of fastener otic placode I53 and fastener otic placode II 54, the through-hole that the bolt passed on fastener otic placode I53 and the fastener otic placode II 54 links together fastener I51 and fastener II 52.
Fastener I51 and fastener II 52 are U type structure, form square cavity after fastener I51 and the II 52 lock of fastener, and articulated joint 2 is located square cavity.
The steel bow member still includes the reinforcement reinforcing bar, and the reinforcement reinforcing bar is located supporting fastener 5's bottom, and reinforcement reinforcing bar welds on II 42 of adapter plate, and supporting fastener 5 welds on the reinforcement reinforcing bar, plays reinforced (rfd) effect on the one hand, and on the other hand can prevent supporting fastener 5 gliding.
Connect through hexagon socket head cap screw in the collapsible combination formula steel bow member articulated joint, the articulated joint position utilizes supporting fastener to consolidate, and the fastener is made for the steel sheet, and both sides are fixed through two bolts, the bolt also can be dismantled and connect, all installs the gasket between the bolt, and the bolt passes behind the connecting plate closely fixed through the nut.
Adopt conventional high altitude construction car 6 to lift whole steel bow member to strutting the position, the operation personnel utilize the excavation operation rack to open the folding steelframe in below promptly side wall steelframe 3, adopt the bolt to fix joint plate and articulated joint, the back is screwed up to the hexagon socket head cap screw, carries out welded fastening to articulated joint active position, uses supporting fastener to carry out articulated joint rigidity.
Open when accomplishing when strutting the steelframe grudging post through the hinge when vault steelframe and side wall steelframe, at first tighten hinge soket head cap bolt, then carry out welded fastening to hinge active position, at last at the supporting fastener parcel hinge of hinge place position installation, fix through fastener otic placode bolt, supporting fastener below welding a lesson reinforcing bar prevents supporting fastener slippage downwards.
The foldable combined steel arch frame is assembled in a factory and transported to a construction site in a folded mode. When the foldable combined steel arch frame is transported to the tunnel face, the lifting and the automatic opening of the foldable combined steel arch frame are completed by the overhead working truck. After the foldable combined steel arch frame is accurately positioned, the arch springing is manually positioned. The hinged joint and the matched fastener between the steel arch frames are processed in a factory in advance, and are assembled in place beside the tunnel face at one time.
After the steel bow member installation targetting in place, strut the operation personnel and screw up the back to hinge hexagon socket head cap screw, carry out welded fastening to hinge head active position, utilize supporting fastener bolt to carry out the outside of hinge head place position and detain the parcel tightly at last, supporting fastener below welding a lesson reinforcing bar prevents supporting fastener slippage downwards.
The utility model discloses collapsible combination formula steel bow member in tunnel, structural design is ingenious, the cost that preparation and use were maintained is low, through hinge and supporting fastener, solve the mechanized problem of assembling of steel bow member, and simultaneously, utilize hinge and supporting fastener, can accomplish the back with the concatenation of the whole steel bow member in tunnel section and fold, the road transportation of being convenient for, solve assembling and transportation problem of large-scale steelframe, so it is significant to have its reality in using collapsible combination formula steel bow member to the construction of mine method tunnel excavation supporting.
The utility model adopts steel structure and stable mechanical property in the splicing and combination structure; through the hinged joint and the matched fastener, constructors can complete integral assembly or folding of a plurality of sections of steel frames, and can fix the arch crown and the side wall steel arch together by utilizing a conventional overhead working truck, so that the aim of safe and quick support after tunnel excavation is fulfilled.
The utility model discloses great practicality and economic nature have. Taking the mechanized supporting of a high-altitude operation vehicle as an example for a tunnel in a certain mining method, the foldable combined type steel arch for the tunnel is utilized to perform supporting operation after tunnel excavation, the erection construction of the steel arch can be quickly completed by folding the combined type steel arch and the high-altitude operation vehicle under the condition that a large number of constructors only need 2-3 constructors, the supporting task after tunnel excavation is excellently completed with low cost investment, and good economic benefit is obtained.
The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, and various insubstantial improvements can be made without the technical solutions of the present invention, or the present invention can be directly applied to other occasions without the improvements, and all are within the protection scope of the present invention.
Claims (8)
1. The utility model provides a collapsible combination formula steel bow member in tunnel which characterized in that: the arch crown steel frame folding device comprises an arch crown steel frame (1), hinges (2) and side wall steel frames (3), wherein the hinges (2) and the side wall steel frames (3) are symmetrically connected to the end parts of two sides of the arch crown steel frame (1), one end of each hinge (2) is connected to the arch crown steel frame (1), the other end of each hinge (2) is connected to the side wall steel frame (3), and the side wall steel frames (3) are rotatably connected to the arch crown steel frame (1) through the hinges (2) to realize folding; the both ends of vault steelframe (1) are equipped with and connect board I (41), the one end that side wall steelframe (3) and vault steelframe (1) are connected is equipped with and connects board II (42), the one end that side wall steelframe (3) kept away from vault steelframe (1) is equipped with and connects board III (43), connect board I (41), be equipped with the connecting hole on connecting board II (42) and joint board III (43), the one end of articulated joint (2) is passed through bolt cooperation and is connected with joint board I (41) on vault steelframe (1), the other end of articulated joint (2) passes through bolt cooperation and is connected with joint board II (42) on side wall steelframe (3).
2. A collapsible sectional steel arch for tunnels as claimed in claim 1, wherein: the hinge joint (2) comprises a hinge joint inner plate (21) and a hinge joint outer plate (22), the hinge joint inner plate (21) is connected to the joint plate I (41), the hinge joint outer plate (22) is connected to the joint plate II (42), and the hinge joint inner plate (21) is rotatably connected with the hinge joint outer plate (22) through bolts.
3. A collapsible sectional steel arch for tunnels according to claim 2, wherein: the hinge joint inner plate (21) is of a n-shaped structure, the hinge joint outer plate (22) is of a U-shaped structure, splicing screw holes (23) which are respectively connected with the joint plate I (41) and the joint plate II (42) are formed in the bottom plates of the hinge joint inner plate (21) and the hinge joint outer plate (22), corresponding through holes are formed in the side walls of the hinge joint inner plate (21) and the hinge joint outer plate (22), the hinge joint inner plate (21) is inserted into the hinge joint outer plate (22), bolts penetrate through the through holes in the side walls of the hinge joint inner plate (21) and the hinge joint outer plate (22) and are fixed through nuts, and the hinge joint inner plate (21) is rotatably connected with the hinge joint outer plate (22).
4. A collapsible sectional steel arch for tunnels according to claim 3, wherein: one end, far away from the bottom plate, of the side wall of the hinge joint outer plate (22) is of an arc structure, and the arc structure at the end part of the side wall of the hinge joint outer plate (22) is in contact with the bottom plate of the hinge joint inner plate (21).
5. A collapsible sectional steel arch for tunnel according to any one of claims 2 to 4, wherein: the steel bow member still includes supporting fastener (5), and supporting fastener (5) are installed in articulated joint (2) place position, and supporting fastener (5) parcel articulated joint (2), and supporting fastener (5) are located and are connected between board I (41) and the board II (42) that connects.
6. A collapsible sectional steel arch for tunnels as claimed in claim 5, wherein: the steel arch frame further comprises a reinforcing steel bar, the reinforcing steel bar is located at the bottom of the matched fastener (5), the reinforcing steel bar is welded on the joint plate II (42), and the matched fastener (5) is welded on the reinforcing steel bar.
7. A collapsible sectional steel arch for tunnels according to claim 6, wherein: supporting fastener (5) are including fastener I (51) and fastener II (52), the both sides portion of fastener I (51) is equipped with fastener otic placode I (53), the both sides portion of fastener II (52) is equipped with fastener otic placode II (54), all be equipped with the through-hole that is used for connecting on fastener otic placode I (53) and the fastener otic placode II (54), when fastener I (51) is buckled with fastener II (52), fastener otic placode I (53) and the coincidence of fastener otic placode II (54), bolt (55) pass through-hole on fastener otic placode I (53) and the fastener otic placode II (54) link together fastener I (51) and fastener II (52).
8. A collapsible sectional steel arch for tunnels according to claim 7, wherein: fastener I (51) and fastener II (52) are U type structure, form square cavity after fastener I (51) and fastener II (52) lock, and hinge (2) are located square cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222698294.2U CN218759944U (en) | 2022-10-13 | 2022-10-13 | Collapsible combination formula steel bow member in tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222698294.2U CN218759944U (en) | 2022-10-13 | 2022-10-13 | Collapsible combination formula steel bow member in tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218759944U true CN218759944U (en) | 2023-03-28 |
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ID=85699323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222698294.2U Active CN218759944U (en) | 2022-10-13 | 2022-10-13 | Collapsible combination formula steel bow member in tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218759944U (en) |
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2022
- 2022-10-13 CN CN202222698294.2U patent/CN218759944U/en active Active
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