CN109306870A - Full section of tunnel construction integer support steel arch-shelf and method for protecting support - Google Patents
Full section of tunnel construction integer support steel arch-shelf and method for protecting support Download PDFInfo
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- CN109306870A CN109306870A CN201811257159.6A CN201811257159A CN109306870A CN 109306870 A CN109306870 A CN 109306870A CN 201811257159 A CN201811257159 A CN 201811257159A CN 109306870 A CN109306870 A CN 109306870A
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- arch
- anchor pole
- flange disk
- rack
- shelf
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 95
- 239000010959 steel Substances 0.000 title claims abstract description 95
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000010276 construction Methods 0.000 title abstract description 19
- 230000000694 effects Effects 0.000 claims abstract description 17
- 238000007665 sagging Methods 0.000 claims abstract description 15
- 238000009434 installation Methods 0.000 claims abstract description 13
- 238000005553 drilling Methods 0.000 claims description 26
- 230000032258 transport Effects 0.000 claims description 24
- 210000000078 claw Anatomy 0.000 claims description 21
- 238000003466 welding Methods 0.000 claims description 20
- 238000003780 insertion Methods 0.000 claims description 11
- 230000037431 insertion Effects 0.000 claims description 11
- 238000003672 processing method Methods 0.000 claims 4
- 239000011435 rock Substances 0.000 abstract description 10
- 101150097977 arch-1 gene Proteins 0.000 description 24
- 238000010586 diagram Methods 0.000 description 8
- 238000004873 anchoring Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000012634 fragment Substances 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
- E21D11/22—Clamps or other yieldable means for interconnecting adjacent arch members either rigidly, or allowing arch member parts to slide when subjected to excessive pressure
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21D11/14—Lining predominantly with metal
- E21D11/30—Bases for lower arch members
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21D11/40—Devices or apparatus specially adapted for handling or placing units of linings or supporting units for tunnels or galleries
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention belongs to steel arch-shelf and method for protecting support technical field, a kind of full section of tunnel construction integer support steel arch-shelf and method for protecting support are disclosed.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 invention belongs to tunnel support steel arch-shelfs and method for protecting support technical field more particularly to a kind of full section of tunnel to construct
Integer support steel arch-shelf and method for protecting support.
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.
Summary of the invention
The invention solves first technical problem be just to provide that welding quality is good, full section of tunnel of high production efficiency
Construction integer support steel arch-shelf.
To solve the above problems, the technical solution adopted by the present invention are as follows: including being located at the upper arch at middle part, being located on described
Two middle arch racks at arch both ends and lower arch positioned at the middle arch rack both ends, between the upper arch and the middle arch rack
And terminal pad is set between the middle arch rack and the lower arch, the end of the upper arch, middle arch rack and lower arch with it is right
The terminal pad answered is fixedly connected, and the terminal pad includes first flange disk and second flange disk, the first flange disk and second
Ring flange side is flexibly connected by bindiny mechanism, is provided with connecting hole on the first flange disk and second flange disk,
Connection bolt is provided 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 connection spiral shell
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 and the fixed company in lower arch bottom
The bottom surface supporting plate connect 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, in institute
The upper end for stating two side supporting plates is provided with foot's anchor pole guide sleeve.
The invention solves second technical problem be just to provide a kind of above-mentioned full section of tunnel construction integer support and use
The method of section-steel support.
To solve the above problems, the technical solution adopted by the present invention are as follows:
This method includes the following steps:
The first step, arch, middle arch rack and lower arch in connection
Terminal pad between upper arch, middle arch rack and lower arch is welded with corresponding upper arch, middle arch rack and lower arch frame end portion,
Connecting hole after welding on the first flange disk and second flange disk of each terminal pad is opposite；
Second step, transport to supporting position
Terminal pad between upper arch, middle arch rack and lower arch is folded and is fixed by fixed mechanism, transporting equipment is used
It transports to supporting position；
Third step, supporting steel arch-shelf
Fixed mechanism is opened, with the mechanical picking-up in the middle part of upper arch is lifted, middle arch rack and lower arch are under self gravitation effect
It is sagging；
4th step fixes first flange disk and second flange disk
The insertion connection bolt in the connecting hole of first flange disk and second flange disk, will connect the nut tightening on bolt；
5th step, drilling anchor rod aperture simultaneously install anchor pole
In two sides drilling anchor rod aperture of terminal pad, 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.
It is oriented to for being provided with anchor pole locating rack in the terminal pad and being provided with anchor pole on the anchor pole locating rack
For the full section of tunnel construction integer support steel arch-shelf of casing, method for protecting support includes the following steps:
The first step, arch, middle arch rack and lower arch in connection
Terminal pad between upper arch, middle arch rack and lower arch is welded with corresponding upper arch, middle arch rack and lower arch frame end portion,
Connecting hole after welding on the first flange disk and second flange disk of each terminal pad is opposite；
Second step, transport to supporting position
Terminal pad between upper arch, middle arch rack and lower arch is folded and is fixed by fixed mechanism, transporting equipment is used
It transports to supporting position；
Third step, supporting steel arch-shelf
Fixed mechanism is opened, with the mechanical picking-up in the middle part of upper arch is lifted, middle arch rack and lower arch are under self gravitation effect
It is sagging；
4th step fixes first flange disk and second flange disk
The insertion connection bolt in the connecting hole of first flange disk and second flange disk, 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 and bolthole along anchor pole guide sleeve direction drilling anchor rod aperture, and by anchor pole, by anchor pole tail
Portion is fixed in anchor pole guide sleeve.
For being provided with the fixation hole with connecting hole location matches on the anchor pole locating rack, the anchor pole locating rack is logical
Cross the full section of tunnel that is fixedly connected with first flange disk and second flange disk of connection bolt construct integer support with steel arch-shelf come
It says, method for protecting support includes the following steps:
The first step, arch, middle arch rack and lower arch in connection
Hinge between upper arch, middle arch rack and lower arch is welded with corresponding upper arch, middle arch rack and lower arch frame end portion, weldering
The connecting hole connect on two leaf of hinge of rear each hinge is opposite；
Second step, transport to supporting position
Hinge between upper arch, middle arch rack and lower arch is folded and is fixed by fixed mechanism, is transported with transporting equipment
Transport to supporting position；
Third step, supporting steel arch-shelf
Fixed mechanism is opened, with the mechanical picking-up in the middle part of upper arch is lifted, middle arch rack and lower arch are under self gravitation effect
It is sagging；
First flange disk and second flange disk are fixed and anchor pole locating rack are fixed by the 4th step
Anchor pole locating rack is placed among first flange disk and second flange disk, so that the fixation hole of anchor pole locating rack and the first method
The alignment of the connecting hole of blue disk and second flange disk, is inserted in the connecting hole of first flange disk, second flange disk and anchor pole locating rack
Enter to connect bolt, the nut tightening on bolt will be connected；
5th step, drilling anchor rod aperture simultaneously install anchor pole
It is inserted into anchor pole guide sleeve and bolthole along anchor pole guide sleeve direction drilling anchor rod aperture, and by anchor pole, by anchor pole tail
Portion is fixed in anchor pole guide sleeve.
Full section of tunnel construction integer support for being provided with jacking terminal pad in the lower end of described two lower arches is used
For steel arch-shelf, method for protecting support includes the following steps:
The first step, arch, middle arch rack and lower arch in connection
Hinge between upper arch, middle arch rack and lower arch is welded with corresponding upper arch, middle arch rack and lower arch frame end portion, weldering
The connecting hole connect on two leaf of hinge of rear each hinge is opposite；
Second step, transport to supporting position
Hinge between upper arch, middle arch rack and lower arch is folded and is fixed by fixed mechanism, is transported with transporting equipment
Transport to supporting position；
Third step, supporting steel arch-shelf
Fixed mechanism is opened, with the mechanical picking-up in the middle part of upper arch is lifted, middle arch rack and lower arch are under self gravitation effect
It is sagging；
First flange disk and second flange disk are fixed and anchor pole locating rack are fixed by the 4th step
Anchor pole locating rack is placed among first flange disk and second flange disk, so that the fixation hole of anchor pole locating rack and the first method
The alignment of the connecting hole of blue disk and second flange disk, is inserted in the connecting hole of first flange disk, second flange disk and anchor pole locating rack
Enter to connect bolt, the nut tightening on bolt will be connected；
5th step jacks entire steel arch-shelf
The lower end that lower arch is jacked with claw jack, drives entire steel arch-shelf to move up, until upper arch upper surface is tightly attached to tunnel
The inner surface on road top；
6th step bores foot's bolthole and installs foot's anchor pole
Foot's bolthole is bored along foot's anchor pole guide sleeve direction, and foot's anchor pole is inserted into foot's anchor pole guide sleeve and foot
In portion'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 and bolthole along anchor pole guide sleeve direction drilling anchor rod aperture, and by anchor pole, by anchor pole tail
Portion is fixed in anchor pole guide sleeve.
Full section of tunnel provided by the present invention construction integer support steel arch-shelf and method for protecting support compared with prior art,
It has the advantage that first, due to including positioned at upper arch, two middle arch racks positioned at the upper arch both ends and the position at middle part
Lower arch in the middle arch rack both ends, between the upper arch and the middle arch rack and in the middle arch rack and the lower arch
Terminal pad is set between frame, and the end of the upper arch, middle arch rack and lower arch is fixedly connected with corresponding terminal pad, the company
Connecing disk includes first flange disk and second flange disk, and the first flange disk and second flange disk side pass through bindiny mechanism's activity
Connection, is provided with connecting hole on the first flange disk and second flange disk, connection bolt is provided in the connecting hole,
In steel arch-shelf production process, by need with the terminal pad connect steel arch-shelf both ends respectively with first flange disk and second flange
Disk welds together, and first flange disk and second flange disk are flexibly connected by bindiny mechanism, when completing the process, will pass through this
The steel arch-shelf of terminal pad connection folds, and is fixed by holding clamp or rope, when transporting supporting position, will be fixed
Fixture or rope are opened, and 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,
At this point, under the limit of bindiny mechanism, the connecting hole automatic aligning of first flange disk and second flange disk, so that connection bolt is very
It is easy insertion, the nut tightening on bolt will be connected, shorten staff in the operating time of supporting position, reduce
Because of falling rocks or the incidence to cause the accident of collapsing, and installation effectiveness is improved, reduces labor intensity；Second, due to described
Bindiny 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
Hinge structure is formed, the connecting hole on such first flange disk and second flange disk is not easy to deviate, and installation speed is fast；Third,
Due to 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
The location of local geologic structure and anchor pole set the direction of anchor pole guide sleeve, thus the anchoring direction more adduction of anchor pole
Reason, and anchor pole and steel arch-shelf are combined together by anchor pole guide sleeve, in conjunction with stronger, and without again by anchor pole and steel
Arch welding；Fourth, due to being provided with the fixation hole with connecting hole location matches on the anchor pole locating rack, the anchor pole is fixed
Position 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 being fixedly connected with lower arch bottom
Bottom surface 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 a side supporting plate is provided with foot's anchor pole guide sleeve, and bottom surface supporting plate side is provided with claw jack, institute
The claw lower end for stating claw jack is inserted into below the bottom surface supporting plate；Wedge-shaped steel is provided with below the claw jack
Plate first erects steel arch-shelf, below wedge-shaped steel plate insertion steel arch-shelf of the upper end with claw jack, is located at bottom surface supporting plate
The claw of claw 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, so
Afterwards 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,
Together with steel arch-shelf 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
Frame sinks and arch when multiple pneumatically placed concrete is caused locally to will appear phenomenon of coming to nothing, and does not need to weld foot's anchor pole and steel arch-shelf,
Reduce 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 full section of tunnel of the present invention 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 knot of full section of tunnel of the present invention construction integer support steel arch-shelf
It structure and is described in further details using principle and method for protecting support.
As shown in Figure 1, Figure 2 and Figure 3, the structural schematic diagram of full section of tunnel construction integer support steel arch-shelf of the present invention,
Full section of tunnel construction integer support steel arch-shelf of the present invention includes positioned at the upper arch 1 at middle part, positioned at the two of upper 1 both ends of arch
A middle arch rack 2 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 and lower arch
Terminal pad 4 is set between 3, and the end of upper arch 1, middle arch rack 2 and lower arch 3 is fixedly connected with corresponding terminal pad 4, terminal pad
4 include first flange disk 5 and second flange disk 6, and first flange disk 5 and 6 side of second flange disk are connected by 7 activity of bindiny mechanism
It connects, is provided with connecting hole 8 on first flange disk 5 and second flange disk 6, connection bolt 9 is provided in connecting hole 8.In steel
In arch 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 second flange disk
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, processing
The steel arch-shelf connected by the terminal pad 4 is folded, is fixed by holding clamp or rope, transporting branch by Cheng Shi
When protecting 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 and lower arch 3 exist
It is sagging under self gravitation effect, at this point, under the limit of bindiny mechanism 7, the connecting hole 8 of first flange disk 5 and second flange disk 6
Automatic aligning will connect the nut tightening on bolt 9, shorten staff and exist so that connection bolt 9 can be readily intercalated into
The operating time of supporting position reduces because of falling rocks or the incidence to cause the accident of collapsing, and improves installation effectiveness, 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 lower 3 end of arch between upper arch 1, middle arch rack 2 and lower arch 3
Portion's welding, 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, with transport
Equipment conveying is 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 gravitation effect
Under it is sagging；
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 nut on bolt 9 and revolve
Tightly；
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 lower 3 end of arch between upper arch 1, middle arch rack 2 and lower arch 3
Portion's welding, 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, with transport
Equipment conveying is 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 gravitation effect
Under it is sagging；
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 nut on bolt 9 and revolve
Tightly；
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, by anchor
Bar 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 lower 3 end of arch between upper arch 1, middle arch rack 2 and lower arch 3
Portion's welding, 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, with transport
Equipment conveying is 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 gravitation effect
Under it is sagging；
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 hole 13 of anchor pole locating rack 11
It is aligned with the connecting hole 8 of first flange disk 5 and second flange disk 6, in first flange disk 5, second flange disk 6 and anchor pole locating rack
Insertion connection bolt 9 in 11 connecting hole 8, 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, by anchor
Bar 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 lower 3 end of arch between upper arch 1, middle arch rack 2 and lower arch 3
Portion's welding, 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, with transport
Equipment conveying is 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 gravitation effect
Under it is sagging；
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 hole 13 of anchor pole locating rack 11
It is aligned with the connecting hole 8 of first flange disk 5 and second flange disk 6, in first flange disk 5, second flange disk 6 and anchor pole locating rack
Insertion connection bolt 9 in 11 connecting hole 8, 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 tightly attached to tunnel
The inner surface on road 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 17
In 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, by anchor
Bar tail portion is fixed in anchor pole guide sleeve 12.
Protection scope of the present invention is not limited solely to above-described embodiment, as long as structure and full section of tunnel of the present invention are constructed
Integer support with steel arch-shelf structure is same or similar and method for protecting support with the method for protecting support is same or similar just falls in guarantor of the present invention
The range of shield.
Claims (9)
- 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.
- The processing method for protecting support of integer support steel arch-shelf 6. full section of tunnel described in claim 1,2 or 3 is constructed, it is special Sign is: this method includes the following steps:The first step, arch, middle arch rack and lower arch in connectionTerminal pad between upper arch, middle arch rack and lower arch is welded with corresponding upper arch, middle arch rack and lower arch frame end portion, Connecting hole after welding on the first flange disk and second flange disk of each terminal pad is opposite；Second step, transport to supporting positionTerminal pad between upper arch, middle arch rack and lower arch is folded and is fixed by fixed mechanism, transporting equipment is used It transports to supporting position；Third step, supporting steel arch-shelfFixed mechanism is opened, with the mechanical picking-up in the middle part of upper arch is lifted, middle arch rack and lower arch are under self gravitation effect It is sagging；4th step fixes first flange disk and second flange diskThe insertion connection bolt in the connecting hole of first flange disk and second flange disk, will connect the nut tightening on bolt；5th step, drilling anchor rod aperture simultaneously install anchor poleIn two sides drilling anchor rod aperture of terminal pad, and by rockbolt installation in bolthole；6th step fixes anchor pole and supporting steel arch-shelfAnchor pole is fixed with supporting steel arch-shelf by welding or other modes.
- The processing method for protecting support of integer support steel arch-shelf 7. full section of tunnel described in claim 3 is constructed, feature exist In: this method includes the following steps:The first step, arch, middle arch rack and lower arch in connectionTerminal pad between upper arch, middle arch rack and lower arch is welded with corresponding upper arch, middle arch rack and lower arch frame end portion, Connecting hole after welding on the first flange disk and second flange disk of each terminal pad is opposite；Second step, transport to supporting positionTerminal pad between upper arch, middle arch rack and lower arch is folded and is fixed by fixed mechanism, transporting equipment is used It transports to supporting position；Third step, supporting steel arch-shelfFixed mechanism is opened, with the mechanical picking-up in the middle part of upper arch is lifted, middle arch rack and lower arch are under self gravitation effect It is sagging；4th step fixes first flange disk and second flange diskThe insertion connection bolt in the connecting hole of first flange disk and second flange disk, will connect the nut tightening on bolt；5th step, drilling anchor rod aperture simultaneously install anchor poleIt is inserted into anchor pole guide sleeve and bolthole along anchor pole guide sleeve direction drilling anchor rod aperture, and by anchor pole, by anchor pole tail Portion is fixed in anchor pole guide sleeve.
- The processing method for protecting support of integer support steel arch-shelf 8. full section of tunnel described in claim 4 is constructed, feature exist In: this method includes the following steps:The first step, arch, middle arch rack and lower arch in connectionHinge between upper arch, middle arch rack and lower arch is welded with corresponding upper arch, middle arch rack and lower arch frame end portion, weldering The connecting hole connect on two leaf of hinge of rear each hinge is opposite；Second step, transport to supporting positionHinge between upper arch, middle arch rack and lower arch is folded and is fixed by fixed mechanism, is transported with transporting equipment Transport to supporting position；Third step, supporting steel arch-shelfFixed mechanism is opened, with the mechanical picking-up in the middle part of upper arch is lifted, middle arch rack and lower arch are under self gravitation effect It is sagging；First flange disk and second flange disk are fixed and anchor pole locating rack are fixed by the 4th stepAnchor pole locating rack is placed among first flange disk and second flange disk, so that the fixation hole of anchor pole locating rack and the first method The alignment of the connecting hole of blue disk and second flange disk, is inserted in the connecting hole of first flange disk, second flange disk and anchor pole locating rack Enter to connect bolt, the nut tightening on bolt will be connected；5th step, drilling anchor rod aperture simultaneously install anchor poleIt is inserted into anchor pole guide sleeve and bolthole along anchor pole guide sleeve direction drilling anchor rod aperture, and by anchor pole, by anchor pole tail Portion is fixed in anchor pole guide sleeve.
- The processing method for protecting support of integer support steel arch-shelf 9. full section of tunnel described in claim 5 is constructed, feature exist In: this method includes the following steps:The first step, arch, middle arch rack and lower arch in connectionHinge between upper arch, middle arch rack and lower arch is welded with corresponding upper arch, middle arch rack and lower arch frame end portion, weldering The connecting hole connect on two leaf of hinge of rear each hinge is opposite；Second step, transport to supporting positionHinge between upper arch, middle arch rack and lower arch is folded and is fixed by fixed mechanism, is transported with transporting equipment Transport to supporting position；Third step, supporting steel arch-shelfFixed mechanism is opened, with the mechanical picking-up in the middle part of upper arch is lifted, middle arch rack and lower arch are under self gravitation effect It is sagging；First flange disk and second flange disk are fixed and anchor pole locating rack are fixed by the 4th stepAnchor pole locating rack is placed among first flange disk and second flange disk, so that the fixation hole of anchor pole locating rack and the first method The alignment of the connecting hole of blue disk and second flange disk, is inserted in the connecting hole of first flange disk, second flange disk and anchor pole locating rack Enter to connect bolt, the nut tightening on bolt will be connected；5th step jacks entire steel arch-shelfThe lower end that lower arch is jacked with claw jack, drives entire steel arch-shelf to move up, until upper arch upper surface is tightly attached to tunnel The inner surface on road top；6th step bores foot's bolthole and installs foot's anchor poleFoot's bolthole is bored along foot's anchor pole guide sleeve direction, and foot's anchor pole is inserted into foot's anchor pole guide sleeve and foot In portion'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 poleIt is inserted into anchor pole guide sleeve and bolthole along anchor pole guide sleeve direction drilling anchor rod aperture, and by anchor pole, by anchor pole tail Portion is fixed in anchor pole guide sleeve.
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| CN201811257159.6A CN109306870B (en) | 2018-10-26 | 2018-10-26 | Steel arch frame for whole support of tunnel full-section construction and support method |
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| CN201811257159.6A CN109306870B (en) | 2018-10-26 | 2018-10-26 | Steel arch frame for whole support of tunnel full-section construction and support method |
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