CN209129633U - Full section of tunnel construction integer support steel arch-shelf - Google Patents
Full section of tunnel construction integer support steel arch-shelf Download PDFInfo
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- CN209129633U CN209129633U CN201821745642.4U CN201821745642U CN209129633U CN 209129633 U CN209129633 U CN 209129633U CN 201821745642 U CN201821745642 U CN 201821745642U CN 209129633 U CN209129633 U CN 209129633U
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Abstract
The utility model belongs to steel arch-shelf technical field, discloses a kind of full section of tunnel construction integer support steel arch-shelf.It is mainly characterized in that including upper arch, middle arch rack and lower arch, terminal pad is set between upper arch and middle arch rack and between middle arch rack and lower arch, terminal pad includes first flange disk and second flange disk, the first flange disk and second flange disk side are flexibly connected by bindiny mechanism, and connection bolt is provided in the connecting hole.In storage and transportational process, the steel arch-shelf connected by the terminal pad is folded, when transporting supporting position, it is mechanical from the picking-up of upper arch middle part with lifting, middle arch rack and lower arch are sagging under self gravitation effect, at this time, under the limit of bindiny mechanism, the connecting hole automatic aligning of first flange disk and second flange disk, staff is shortened in the operating time of supporting position, reduce because of falling rocks or the incidence to cause the accident of collapsing, and improve installation effectiveness, reduces labor intensity.
Description
Technical field
The utility model belongs to tunnel support steel arch-shelf technical field more particularly to a kind of whole branch of full section of tunnel construction
Shield uses steel arch-shelf.
Background technique
For country's Tunnel Engineering frequently with composite lining structure, tunnel steel arch frame is the composition portion of Tunnel at present
Point, main function is resistant to the initial stage convergent deformation that country rock is generated due to excavation disturbance.Steel arch-shelf is fragmented under normal conditions
It is transported to construction site, the face after excavating manually is attached it to by worker, and using lock foot anchor tube at steel arch-shelf arch springing
It is fixed, uses U-typed reinforcement welding between steel arch-shelf and lock foot anchor tube.The above method have the following deficiencies: first, due to
Manually steel arch-shelf fragment is transported at the face after excavating and is installed, installation space is small, and installation difficulty is big, and due to face
It is easy to appear falling rocks etc., increases accident rate；Second, being connected between fragment using ring flange, every steel arch-shelf weighs number
Hundred kilograms, it is not easy to be aligned in small space, increases labor intensity；Third, due to being influenced by operating space is narrow, often
The steel arch-shelf of secondary installation weighs hundreds of kilograms, is only manually often difficult to be lifted to, vault closely connected with tunnel vault country rock
There are biggish gaps between country rock and steel arch-shelf apical margin；Arch locally will appear when multiple pneumatically placed concrete after steel arch-shelf is set up
It comes to nothing phenomenon.In the case, steel arch-shelf will cannot play the work for resisting the convergence of arch country rock, deformation in certain deformation range
With.
Utility model content
The technical problems to be solved in the utility model is just to provide that welding quality is good, full section of tunnel of high production efficiency is applied
Work integer support steel arch-shelf.
To solve the above problems, the technical solution adopted in the utility model are as follows: including being located at the upper arch at middle part, being located at institute
Two middle arch racks at arch both ends and the lower arch positioned at the middle arch rack both ends are stated, in the upper arch and the middle arch rack
Between and terminal pad, the end of the upper arch, middle arch rack and lower arch be set between the middle arch rack and the lower arch
Be fixedly connected with corresponding terminal pad, the terminal pad includes first flange disk and second flange disk, the first flange disk and
Second flange disk side is flexibly connected by bindiny mechanism, is provided with connection on the first flange disk and second flange disk
Hole is provided with connection bolt in the connecting hole.
Its additional technical feature are as follows:
The bindiny mechanism is the hinge shaft connecting with the first flange disk and second flange disk；
It is provided with anchor pole locating rack in the terminal pad, is provided with anchor pole guide sleeve on the anchor pole locating rack；
The fixation hole with connecting hole location matches is provided on the anchor pole locating rack, the anchor pole locating rack passes through company
Connecting bolt is fixedly connected with first flange disk and second flange disk；
The lower end of described two lower arches is provided with jacking terminal pad, which includes solid with lower arch bottom
Surely the bottom surface supporting plate connected is side supporting plate in the bottom surface supporting plate two sides, and the bottom surface supporting plate and side supporting plate are in " U " font,
The upper end of described two side supporting plates is provided with foot's anchor pole guide sleeve.
Full section of tunnel provided by the utility model construction integer support with steel arch-shelf compared with prior art, have with
Lower advantage: first, due to including the upper arch positioned at middle part, two middle arch racks positioned at the upper arch both ends and being located at described
The lower arch at middle arch rack both ends, between the upper arch and the middle arch rack and between the middle arch rack and the lower arch
Terminal pad is set, and the end of the upper arch, middle arch rack and lower arch is fixedly connected with corresponding terminal pad, the terminal pad packet
First flange disk and second flange disk are included, the first flange disk and second flange disk side are flexibly connected by bindiny mechanism,
It is provided with connecting hole on the first flange disk and second flange disk, connection bolt is provided in the connecting hole, in steel
In arch production process, the steel arch-shelf both ends connected with the terminal pad will be needed to weld respectively with first flange disk and second flange disk
It is connected together, first flange disk and second flange disk are flexibly connected by bindiny mechanism, when completing the process, will pass through the connection
The steel arch-shelf of disk connection folds, and is fixed by holding clamp or rope, when transporting supporting position, by holding clamp
Or rope is opened, with the mechanical picking-up in the middle part of upper arch is lifted, middle arch rack and lower arch are sagging under self gravitation effect, this
When, under the limit of bindiny mechanism, the connecting hole automatic aligning of first flange disk and second flange disk, so that connection bolt holds very much
Easily insertion, will connect bolt on nut tightening, shorten staff in the operating time of supporting position, reduce because
The incidence that falling rocks or collapsing cause the accident, and installation effectiveness is improved, reduce labor intensity；Second, due to the company
Connection mechanism is the hinge shaft connecting with the first flange disk and second flange disk；First flange disk and second flange disk and hinge shaft group
At hinge structure, the connecting hole on such first flange disk and second flange disk is not easy to deviate, and installation speed is fast；Third, by
In being provided with anchor pole locating rack in the terminal pad, it is provided with anchor pole guide sleeve on the anchor pole locating rack, according to working as
The location of ground geologic structure and anchor pole set the direction of anchor pole guide sleeve, so that the anchoring direction of anchor pole is more reasonable,
And anchor pole and steel arch-shelf are combined together by anchor pole guide sleeve, in conjunction with stronger, and are not had to again by anchor pole and steel arch
Frame welding；Fourth, due to being provided with the fixation hole with connecting hole location matches, the anchor pole positioning on the anchor pole locating rack
Frame is fixedly connected by connection bolt with first flange disk and second flange disk, and processing and installation is more convenient；Fifth, due to
The lower end of described two lower arches is provided with jacking terminal pad, which includes the bottom being fixedly connected with lower arch bottom
Face supporting plate is side supporting plate in the bottom surface supporting plate two sides, and the bottom surface supporting plate and side supporting plate are in " U " font, described two
The upper end of side supporting plate is provided with foot's anchor pole guide sleeve, and bottom surface supporting plate side is provided with claw jack, described
The claw lower end of claw jack is inserted into below the bottom surface supporting plate；It is provided with wedge-shaped steel plate below the claw jack,
First steel arch-shelf is erected, below wedge-shaped steel plate insertion steel arch-shelf of the upper end with claw jack, bottom surface supporting plate is made to be located at pawl
The claw of formula jack is lifted so that steel arch-shelf and tunnel vault country rock are closely connected upwards with claw jack, is pushed up in stopping, then
Along foot's anchor pole guide sleeve direction drilling anchor rod aperture, foot's anchor pole is inserted into foot's anchor pole guide sleeve and bolthole, steel
Together with arch is anchored with tunnel wall, claw jack and wedge-shaped steel plate are extracted out, it is more convenient to construct, will not be because of steel arch-shelf
Sink and arch when multiple pneumatically placed concrete is caused locally to will appear phenomenon of coming to nothing, does not need to weld foot's anchor pole and steel arch-shelf, subtract
Lack welding sequence, improves the bonding strength of anchor pole and steel arch-shelf.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model full section of tunnel construction integer support steel arch-shelf；
Fig. 2 is the structural schematic diagram of folded full section of tunnel construction integer support steel arch-shelf；
Fig. 3 is the structural schematic diagram of terminal pad；
Fig. 4 is the structural schematic diagram of the terminal pad with anchor pole locating rack；
Fig. 5 is the structural schematic diagram of anchor pole locating rack；
Fig. 6 is the lateral plan of the terminal pad with anchor pole locating rack；
Fig. 7 is the structural schematic diagram for jacking fixed device；
Fig. 8 is the structural schematic diagram of the fixed device of jacking with the lower arch in part.
Specific embodiment
With reference to the accompanying drawings and detailed description to the utility model full section of tunnel construction integer support steel arch-shelf
Structure and be described in further details using principle.
As shown in Figure 1, Figure 2 and Figure 3, the structural representation of the utility model full section of tunnel construction integer support steel arch-shelf
Figure, the utility model full section of tunnel construction integer support steel arch-shelf include positioned at the upper arch 1 at middle part, positioned at upper arch 1
Two middle arch racks 2 at both ends and lower arch 3 positioned at 2 both ends of middle arch rack, between upper arch 1 and middle arch rack 2 and in middle arch rack 2
Terminal pad 4 is set between lower arch 3, and the end of upper arch 1, middle arch rack 2 and lower arch 3 is fixed with corresponding terminal pad 4 to be connected
It connects, terminal pad 4 includes first flange disk 5 and second flange disk 6, and first flange disk 5 and 6 side of second flange disk pass through connection machine
Structure 7 is flexibly connected, and is provided with connecting hole 8 on first flange disk 5 and second flange disk 6, connection spiral shell is provided in connecting hole 8
Bolt 9.In steel arch-shelf production process, by the steel arch-shelf both ends for needing to be connected with the terminal pad 4 respectively with first flange disk 5 and
Two ring flanges 6 weld together, and first flange disk 5 and second flange disk 6 are flexibly connected by bindiny mechanism 7.As shown in Fig. 2,
When completing the process, the steel arch-shelf connected by the terminal pad 4 is folded, is fixed by holding clamp or rope,
When transporting supporting position, holding clamp or rope are opened, held up in the middle part of upper arch 1 with machinery is lifted, middle arch rack 2 is under
Arch 3 is sagging under self gravitation effect, at this point, under the limit of bindiny mechanism 7, first flange disk 5 and second flange disk 6
8 automatic aligning of connecting hole will connect the nut tightening on bolt 9, shorten work so that connection bolt 9 can be readily intercalated into
Make personnel in the operating time of supporting position, reduces because of falling rocks or the incidence to cause the accident of collapsing, and improve installation
Efficiency reduces labor intensity.
As shown in figure 3, bindiny mechanism 7 is the hinge shaft 10 connecting with first flange disk 5 and second flange disk 6；First flange
Disk 5 and second flange disk 6 and hinge shaft 10 form hinge structure, the connecting hole 8 on such first flange disk 5 and second flange disk 6
It is not easy to deviate, installation speed is fast.
As shown in Figure 4, Figure 5 and Figure 6, it is provided with anchor pole locating rack 11 in terminal pad 4, is arranged on anchor pole locating rack 11
There is anchor pole guide sleeve 12, the direction of anchor pole guide sleeve 12 is set according to the location of local geologic structure and anchor pole, from
And the anchoring direction of anchor pole is more reasonable, and anchor pole is combined together by anchor pole guide sleeve 12 with steel arch-shelf, in conjunction with more
Securely, and do not have to again weld anchor pole and steel arch-shelf.
Anchor pole locating rack 11 is structure as a whole with first flange disk 5.Certainly, anchor pole locating rack 11 can also be as shown in Figure 5
Absolute construction, the fixation hole 13 with 8 location matches of connecting hole is provided on anchor pole locating rack 11, anchor pole locating rack 11 passes through
Connection bolt 9 is fixedly connected with first flange disk 5 and second flange disk 6, and processing and installation is more convenient, it is of course also possible to such as
Shown in Fig. 1, Fig. 7 and Fig. 8, the lower end of two lower arches 3 is provided with jacking terminal pad 14, which includes under
The bottom surface supporting plate 15 that 3 bottom of arch is fixedly connected is side supporting plate 16, bottom surface supporting plate 15 and side in 15 two sides of bottom surface supporting plate
Supporting plate 16 is in " U " font, the upper end of two side supporting plates 16 is provided with foot's anchor pole guide sleeve 17, the supporting plate 15 1 in bottom surface
Side is provided with claw jack 18,19 lower end of claw insertion bottom surface supporting plate, 15 lower section of claw jack 18；In claw jack
18 lower sections are provided with wedge-shaped steel plate 20.First steel arch-shelf is erected, upper end is inserted into the wedge-shaped steel plate 20 of claw jack 18
Lower 3 lower section of arch makes bottom surface supporting plate 15 be located at 19 top of claw of claw jack 18, and being lifted upwards with claw jack 18 makes
It obtains steel arch-shelf and tunnel vault country rock is closely connected, pushed up in stopping, it, will then along 17 direction drilling anchor rod aperture of foot's anchor pole guide sleeve
Foot's anchor pole is inserted into foot's anchor pole guide sleeve and bolthole, and steel arch-shelf is together with tunnel wall anchoring, by claw jack
18 and wedge-shaped steel plate 20 extract out, it is more convenient to construct, will not because steel arch-shelf sinks and arch part when causing multiple pneumatically placed concrete
It will appear phenomenon of coming to nothing, do not need to weld foot's anchor pole and steel arch-shelf, reduce welding sequence, improve anchor pole and steel arch-shelf
Bonding strength.
The method of above-mentioned full section of tunnel construction integer support section-steel support, this method include the following steps:
This method includes the following steps:
The first step, arch 1, middle arch rack 2 and lower arch 3 in connection
By terminal pad 4 and corresponding upper arch 1, middle arch rack 2 and the lower arch between upper arch 1, middle arch rack 2 and lower arch 3
The welding of 3 end of frame, the connecting hole 8 after welding on the first flange disk 5 and second flange disk 6 of each terminal pad 4 are opposite；
Second step, transport to supporting position
Terminal pad 4 between upper arch 1, middle arch rack 2 and lower arch 3 is folded and is fixed by fixed mechanism, is used
Transporting equipment is transported to supporting position；
Third step, supporting steel arch-shelf
Fixed mechanism is opened, is held up in the middle part of upper arch 1 with machinery is lifted, middle arch rack 2 and lower arch 3 are in self gravity
It is sagging under effect；
4th step fixes first flange disk and second flange disk
The insertion connection bolt 9 in the connecting hole 8 of first flange disk 5 and second flange disk 6, will connect the spiral shell on bolt 9
Mother screws；
5th step, drilling anchor rod aperture simultaneously install anchor pole
In two sides drilling anchor rod aperture of terminal pad 4, and by rockbolt installation in bolthole；
6th step fixes anchor pole and supporting steel arch-shelf
Anchor pole is fixed with supporting steel arch-shelf by welding or other modes.
For being provided with anchor pole locating rack 11 in terminal pad 4, anchor pole guide sleeve is provided on anchor pole locating rack 11
For 12 full section of tunnel construction integer support steel arch-shelf, method for protecting support includes the following steps:
The first step, arch 1, middle arch rack 2 and lower arch 3 in connection
By terminal pad 4 and corresponding upper arch 1, middle arch rack 2 and the lower arch between upper arch 1, middle arch rack 2 and lower arch 3
The welding of 3 end of frame, the connecting hole 8 after welding on the first flange disk 5 and second flange disk 6 of each terminal pad 4 are opposite；
Second step, transport to supporting position
Terminal pad 4 between upper arch 1, middle arch rack 2 and lower arch 3 is folded and is fixed by fixed mechanism, is used
Transporting equipment is transported to supporting position；
Third step, supporting steel arch-shelf
Fixed mechanism is opened, is held up in the middle part of upper arch 1 with machinery is lifted, middle arch rack 2 and lower arch 3 are in self gravity
It is sagging under effect；
4th step fixes first flange disk and second flange disk
The insertion connection bolt 9 in the connecting hole 8 of first flange disk 5 and second flange disk 6, will connect the spiral shell on bolt 9
Mother screws；
5th step, drilling anchor rod aperture simultaneously install anchor pole
It is inserted into anchor pole guide sleeve 12 and bolthole along 12 direction drilling anchor rod aperture of anchor pole guide sleeve, and by anchor pole,
Anchor pole tail portion is fixed in anchor pole guide sleeve 12.
For being provided with the fixation hole 13 with 8 location matches of connecting hole, anchor pole locating rack on the anchor pole locating rack 11
The 11 full section of tunnel construction integer support steel being fixedly connected by connecting bolt 9 with first flange disk 5 and second flange disk 6
For arch, method for protecting support includes the following steps:
The first step, arch 1, middle arch rack 2 and lower arch 3 in connection
By terminal pad 4 and corresponding upper arch 1, middle arch rack 2 and the lower arch between upper arch 1, middle arch rack 2 and lower arch 3
The welding of 3 end of frame, the connecting hole 8 after welding on the first flange disk 5 and second flange disk 6 of each terminal pad 4 are opposite；
Second step, transport to supporting position
Terminal pad 4 between upper arch 1, middle arch rack 2 and lower arch 3 is folded and is fixed by fixed mechanism, is used
Transporting equipment is transported to supporting position；
Third step, supporting steel arch-shelf
Fixed mechanism is opened, is held up in the middle part of upper arch 1 with machinery is lifted, middle arch rack 2 and lower arch 3 are in self gravity
It is sagging under effect；
First flange disk and second flange disk are fixed and anchor pole locating rack are fixed by the 4th step
Anchor pole locating rack 11 is placed among first flange disk 5 and second flange disk 6, so that the fixation of anchor pole locating rack 11
Hole 13 is aligned with the connecting hole 8 of first flange disk 5 and second flange disk 6, fixed in first flange disk 5, second flange disk 6 and anchor pole
Insertion connection bolt 9 in the connecting hole 8 of position frame 11, will connect the nut tightening on bolt；
5th step, drilling anchor rod aperture simultaneously install anchor pole
It is inserted into anchor pole guide sleeve 12 and bolthole along 12 direction drilling anchor rod aperture of anchor pole guide sleeve, and by anchor pole,
Anchor pole tail portion is fixed in anchor pole guide sleeve 12.
Full section of tunnel construction integer support for being provided with jacking terminal pad in the lower end of described two lower arches 3 is used
For steel arch-shelf, method for protecting support includes the following steps:
The first step, arch 1, middle arch rack 2 and lower arch 3 in connection
By terminal pad 4 and corresponding upper arch 1, middle arch rack 2 and the lower arch between upper arch 1, middle arch rack 2 and lower arch 3
The welding of 3 end of frame, the connecting hole 8 after welding on the first flange disk 5 and second flange disk 6 of each terminal pad 4 are opposite；
Second step, transport to supporting position
Terminal pad 4 between upper arch 1, middle arch rack 2 and lower arch 3 is folded and is fixed by fixed mechanism, is used
Transporting equipment is transported to supporting position；
Third step, supporting steel arch-shelf
Fixed mechanism is opened, is held up in the middle part of upper arch 1 with machinery is lifted, middle arch rack 2 and lower arch 3 are in self gravity
It is sagging under effect；
First flange disk and second flange disk are fixed and anchor pole locating rack are fixed by the 4th step
Anchor pole locating rack 11 is placed among first flange disk 5 and second flange disk 6, so that the fixation of anchor pole locating rack 11
Hole 13 is aligned with the connecting hole 8 of first flange disk 5 and second flange disk 6, fixed in first flange disk 5, second flange disk 6 and anchor pole
Insertion connection bolt 9 in the connecting hole 8 of position frame 11, will connect the nut tightening on bolt；
5th step jacks entire steel arch-shelf
Lower 3 lower end of arch is jacked with claw jack 18, drives entire steel arch-shelf to move up, until upper arch upper surface is close to
Inner surface on tunnel top；
6th step bores foot's bolthole and installs foot's anchor pole
Foot's bolthole is bored along 17 direction of foot's anchor pole guide sleeve, and foot's anchor pole is inserted into foot's anchor pole guide sleeve
In pipe 17 and foot's bolthole, foot's anchor pole tail portion is fixed in foot's anchor pole guide sleeve；
7th step, drilling anchor rod aperture simultaneously install anchor pole
It is inserted into anchor pole guide sleeve 12 and bolthole along 12 direction drilling anchor rod aperture of anchor pole guide sleeve, and by anchor pole,
Anchor pole tail portion is fixed in anchor pole guide sleeve 12.
The protection scope of the utility model is not limited solely to above-described embodiment, as long as structure and the utility model tunnel are complete
The section construction integer support same or similar range for just falling in the utility model protection of steel arch-shelf structure.
Claims (5)
- The integer support steel arch-shelf 1. full section of tunnel is constructed, including being located at the upper arch at middle part, being located at the upper arch both ends Two middle arch racks and lower arch positioned at the middle arch rack both ends, it is characterised in that: in the upper arch and the middle arch rack Between and terminal pad, the end of the upper arch, middle arch rack and lower arch be set between the middle arch rack and the lower arch Be fixedly connected with corresponding terminal pad, the terminal pad includes first flange disk and second flange disk, the first flange disk and Second flange disk side is flexibly connected by bindiny mechanism, is provided with connection on the first flange disk and second flange disk Hole is provided with connection bolt in the connecting hole.
- The integer support steel arch-shelf 2. full section of tunnel according to claim 1 is constructed, it is characterised in that: the connection machine Structure is the hinge shaft connecting with the first flange disk and second flange disk.
- The integer support steel arch-shelf 3. full section of tunnel according to claim 1 is constructed, it is characterised in that: in the connection It is provided with anchor pole locating rack on disk, is provided with anchor pole guide sleeve on the anchor pole locating rack.
- The integer support steel arch-shelf 4. full section of tunnel according to claim 3 is constructed, it is characterised in that: in the anchor pole The fixation hole with connecting hole location matches is provided on locating rack, the anchor pole locating rack passes through connection bolt and first flange disk It is fixedly connected with second flange disk.
- The integer support steel arch-shelf 5. full section of tunnel according to claim 1 is constructed, it is characterised in that: described two The lower end of lower arch is provided with jacking terminal pad, which includes the bottom surface supporting plate being fixedly connected with lower arch bottom, It is side supporting plate in the bottom surface supporting plate two sides, the bottom surface supporting plate and side supporting plate are in " U " font, in described two side supporting plates Upper end be provided with foot's anchor pole guide sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821745642.4U CN209129633U (en) | 2018-10-26 | 2018-10-26 | Full section of tunnel construction integer support steel arch-shelf |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821745642.4U CN209129633U (en) | 2018-10-26 | 2018-10-26 | Full section of tunnel construction integer support steel arch-shelf |
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| CN209129633U true CN209129633U (en) | 2019-07-19 |
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| CN201821745642.4U Active CN209129633U (en) | 2018-10-26 | 2018-10-26 | Full section of tunnel construction integer support steel arch-shelf |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109306870A (en) * | 2018-10-26 | 2019-02-05 | 河北创恒智能装备科技有限公司 | Full section of tunnel construction integer support steel arch-shelf and method for protecting support |
| CN110549055A (en) * | 2019-09-29 | 2019-12-10 | 中国葛洲坝集团路桥工程有限公司 | steel arch frame trial assembly die and connecting plate finish machining method |
| CN110566241A (en) * | 2019-09-16 | 2019-12-13 | 四川睿铁科技有限责任公司 | Quickly-assembled supporting shed frame |
| CN110608055A (en) * | 2019-10-18 | 2019-12-24 | 中铁隧道局集团有限公司 | Plug-and-play ball-hinge type steel arch connecting component capable of achieving quantitative yielding and use method |
| CN112983494A (en) * | 2021-04-02 | 2021-06-18 | 中国铁建重工集团股份有限公司 | Arch and arch are folding with hinge structure |
-
2018
- 2018-10-26 CN CN201821745642.4U patent/CN209129633U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109306870A (en) * | 2018-10-26 | 2019-02-05 | 河北创恒智能装备科技有限公司 | Full section of tunnel construction integer support steel arch-shelf and method for protecting support |
| CN109306870B (en) * | 2018-10-26 | 2024-05-03 | 河北创恒智能装备科技有限公司 | Steel arch frame for whole support of tunnel full-section construction and support method |
| CN110566241A (en) * | 2019-09-16 | 2019-12-13 | 四川睿铁科技有限责任公司 | Quickly-assembled supporting shed frame |
| CN110549055A (en) * | 2019-09-29 | 2019-12-10 | 中国葛洲坝集团路桥工程有限公司 | steel arch frame trial assembly die and connecting plate finish machining method |
| CN110549055B (en) * | 2019-09-29 | 2024-05-28 | 中国葛洲坝集团路桥工程有限公司 | Steel arch trial assembly die and connecting plate finish machining method |
| CN110608055A (en) * | 2019-10-18 | 2019-12-24 | 中铁隧道局集团有限公司 | Plug-and-play ball-hinge type steel arch connecting component capable of achieving quantitative yielding and use method |
| CN110608055B (en) * | 2019-10-18 | 2020-10-20 | 中铁隧道局集团有限公司 | Plug-and-play ball-hinge type steel arch connecting component capable of achieving quantitative yielding and use method |
| CN112983494A (en) * | 2021-04-02 | 2021-06-18 | 中国铁建重工集团股份有限公司 | Arch and arch are folding with hinge structure |
| CN112983494B (en) * | 2021-04-02 | 2023-03-10 | 中国铁建重工集团股份有限公司 | Arch and arch are folding with hinge structure |
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