CN108643923A - Tunnel partial excavation assembled arch and mechanized construction technique - Google Patents
Tunnel partial excavation assembled arch and mechanized construction technique Download PDFInfo
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- CN108643923A CN108643923A CN201810366333.4A CN201810366333A CN108643923A CN 108643923 A CN108643923 A CN 108643923A CN 201810366333 A CN201810366333 A CN 201810366333A CN 108643923 A CN108643923 A CN 108643923A
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- excavation portion
- temporary support
- excavation
- ring flange
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- 238000009412 basement excavation Methods 0.000 title claims abstract description 118
- 238000010276 construction Methods 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000009434 installation Methods 0.000 claims abstract description 16
- 238000003032 molecular docking Methods 0.000 claims description 2
- 238000007665 sagging Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 239000011435 rock Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 206010016256 fatigue Diseases 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 239000011372 high-strength concrete Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
-
- 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
- E21D19/00—Provisional protective covers for working space
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a kind of tunnel partial excavation assembled arch and mechanized construction techniques；By taking tunnel CD method excavating sequences as an example, arch is folded according to merogenesis, in face of arch fitting machine handling arch to tunnel face；Arch and temporary support that first is excavated are attached fixation, arch fitting machine snatch arch is lifted, arch and temporary support are fully deployed, and is positioned；The temporary support of the inverted arch arch and remainder in installation left side the second excavation portion of lower section, is attached with the arch and temporary support in the first excavation portion above left side；The supporting arch in installation right side top third excavation portion, is attached with the arch in the first excavation portion above left side；The inverted arch in installation lower right-hand side excavation portion and the inverted arch in the second excavation portion below the supporting arch in third excavation portion above right side and left side are attached.The present invention realizes the mechanization installation of branch's supporting construction, improves construction efficiency, ensures construction safety.
Description
Technical field
The present invention is suitable for one kind during underground engineering partial excavation, and in particular to a kind of flange joint includes this
The assembled supporting construction of node and the construction technology that mechanization rapid construction is carried out using assembled arch.
Background technology
With the rapid development of traffic tunnel construction, construction scale gradually increases, and weakness can be inevitably encountered in process of construction
The complicated geologicals situation such as country rock, fault belt, wall rock loosening and breakoff phenomenon are serious, and it is unstable vault often occur, arch springing
The features such as stress concentration, leads to the safety problems such as big rock deformation, support unit fracture, vault chip off-falling even landslide, Yi Zao
At casualties and great economic loss.
China's underground engineering support constructing device and construction method have the following problems at present：
1. the existing common flange joint that the node of temporary support and supporting construction uses, artificial to carry out single-unit arch
Splicing, the problems such as this node structure causes speed of application slow, low construction efficiency；
2. there is no assembled arch in present underground engineering, after the completion of tunnel excavation, in the feelings of no any supporting measure
Under condition, arch is installed by manpower, is construction link the most dangerous to worker during constructing tunnel；During this period, high-strength
Degree, high load capacity construction, worker is easily tired out, and surrounding rock stability is poor in addition, and working security needs strictly in tunnel construction
It ensures.In addition, as demographic dividend disappears, cost of human resources and the contradiction of engineering economy are increasingly prominent.
3. in tunnel merological approach excavation and support processes, arch supporting construction needs branch to set up, constructional difficulties, and respectively saves arch
Between be attached by manually installed flange joint；Arch weight is big, and manpower construction intensity is big, and low construction efficiency, tradition is applied
Work mode progress is slow.
Based on problem above, there is an urgent need for a kind of safe and efficient mechanized construction technologies for constructing tunnel, to improve construction effect
Rate ensures construction safety.
Invention content
The present invention to solve the above-mentioned problems, by taking the four CD methods in tunnel are excavated as an example, it is proposed that one kind is suitable in underground
Flange joint in engineering distribution excavation construction, the flange joint can be constructed with cooperative mechanicalization, and each arch automatic fastening that saves is consolidated
It is fixed, without manually carrying out the connection of each section arch.
The invention also provides a kind of excavation assembled supporting construction, which can carry out the primary of branch's arch
Property set up.
The invention also provides a kind of method carrying out mechanized construction using assembled arch, this method can ensure construction
Safety improves construction efficiency.
To achieve the goals above, the present invention adopts the following technical scheme that：
The present invention proposes a kind of flange joint, including ring flange I, ring flange II and guide plate, on the ring flange I
It equipped with interpolation clamping close device, is equipped on ring flange II and is oriented to reception device, the interpolation clamping close device is inserted into described
It is oriented in reception device, and realizes and be oriented in the guide plate and the ring flange I, ring flange II cooperations.
Further, the interpolation clamping close device is a protrusion being arranged in the centers ring flange I；It is described
Guiding reception device be a guide post being arranged on ring flange II, the center of the guide post is set there are one jack,
The protrusion is inserted into the jack.
Further, the guide plate includes two, being arranged in the both sides of ring flange I, ring flange II respectively symmetrically,
Form a sector structure.
Further, the ring flange I, ring flange II are separately mounted on two adjacent arches, and described
The top of ring flange I or ring flange II are equipped with block.
The present invention also provides a kind of assembled supporting construction, the connection between arch is using foregoing novel
Flange joint.
The present invention also provides a kind of underground engineering CD methods excavate assembled supporting construction, including branch's assembled arch and
Temporary support, it includes more to be located above the arch in the first excavation portion of section, the arch in third excavation portion and temporary support I respectively
It saves, is connected by assembling type node between adjacent segments；The arch and temporary support I in the first excavation portion be by assembling type node or
Person's assembled flange is attached；The arch in the first excavation portion and the arch in third excavation portion pass through foregoing flange joint
It is attached；Positioned at the arch in the second, the 4th excavation portion of lower section section, temporary support II from there was only a section, second, the
The arch in four excavation portions, temporary support II by assembled flange and top section first, third excavation portion arch and face
When support II be attached.
The present invention also provides a kind of methods constructed using the supporting construction, include the following steps：
Step 1：Arch is folded according to merogenesis, in face of handling arch to tunnel face；
Step 2：The connecting node of the arch in the first excavation portion above left side and temporary support I are opened, and by the arch
The upside connecting node of itself is opened, and snatch arch is simultaneously lifted, and the downside of the arch itself and temporary support I itself are saved
Point is opened；
Step 3：The arch position for adjusting the first excavation portion of left side top, by longitudinal register attachment device and previous Pin arches
It is attached, realizes being accurately positioned for branch's arch；
Step 4：The inverted arch arch in installation left side the second excavation portion of lower section, and by the arch in the first excavation portion above itself and left side
Frame is connected, while temporary support II and temporary support I being attached；
Step 5：The arch in installation right side top third excavation portion, and by its arch with the first excavation portion above left side into
Row connection；
Step 6：The inverted arch arch in lower right-hand side the 4th excavation portion is installed, and by the arch in third excavation portion above itself and right side
The inverted arch arch connection of frame, the second excavation portion.
Further, the arch and temporary support I in the first excavation portion described in the construction method are mainly by two pieces of methods
The axis pin of blue disk and mounting flange forms, and the arch can be made to be attached and roll over temporary support I by the rotation of axis pin
It is folded；Ring flange is subjected to docking fixation using bolt before the arch lifts, keeps the arch and temporary support I fastenings integral,
Complete disposable set up.
Further, in the construction method, the arch and temporary support I in first excavation portion are in arch fitting machine
After lifting, on the downside of assembling type node it is not deployed, the downside of the arch and temporary support I are in free hang, auxiliary
Fitting machine stretches the assembling type node that do not carry out, completes the integral erection of branch's arch.
Further, in the step 4 and step 6, based on mechanized construction, supplemented by manual operation；I.e.：Arch is pacified
Installation crawl arch places designated position, and human assistance mounting flange node is attached.
Further, the connecting node between the arch and temporary support I by the first excavation portion described in step 2 is opened,
Refer to being fixed by assembling type node or assembled flange, then carry out mechanization lifting.
Further, described in step 2 by the upper side gusset of the arch in the first excavation portion and temporary support I open, be
The assembling type node of corresponding position is fixed by finger, and the node at downside position is without being fixed, after lifting
Auxiliary fitting machine is recycled to be set up the arch in the excavation portion completely.
Further, arch at arch springing is opened using auxiliary fitting machine in step 2, by taking the first excavation portion as an example, refers to
After arch is lifted, the downside position of arch and temporary support is in free hang, and auxiliary fitting machine is by arch and temporarily
Support downside free end pushes outward, so that assembling type node is fixed, realizes branch's arch and temporary support
It sets up completely.
Further, it the snatch arch described in step 2 and is lifted, refers to utilizing arch fitting machine manipulator snatch
Position above the arch in the first excavation portion, is lifted to designated position, and accurately manipulate manipulator, make longitudinal register attachment device with
The guider that the weldering of previous Pin arches surface is set is attached fixation, realizes being accurately positioned for branch's arch.
Wherein, foregoing longitudinal register attachment device refers to being mounted to arch to be lifted before arch lifting
Frame surface.
Beneficial effects of the present invention are：
(1) present invention proposes tunnel partial excavation assembled arch and mechanized construction technique, realizes arch erection
Mechanized construction, improve construction efficiency, ensured construction safety, the construction method have efficiently, quickly, safety height etc.
Feature.
(2) a kind of tunnel assembled arch proposed by the present invention, it can be achieved that arch entirety disposable erection, the assembled
Arch is suitable for traditional shaped steel arch, and is suitable for novel Confined High Strength Concrete arch.
(3) a kind of special flange joint device proposed by the present invention is, it can be achieved that excavation portion arch at left and right sides of top
Quickly connection, the process for simplifying traditional artificial connecting flange node, speed of application are fast；
Description of the drawings
The accompanying drawings which form a part of this application are used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation do not constitute the improper restriction to the application for explaining the application.
Fig. 1 is four CD method excavation sequence figures of the invention；
Fig. 2 is the first excavation portion arch of the invention and temporary support construction diagrams；
Fig. 3 is the first excavation portion arch of the invention and temporary support assembling type node connection diagram；
Fig. 4 is the first excavation portion arch of the invention and temporary support assembled flange joint schematic diagram；
Fig. 5 is the special flange joint of present invention connection top section left and right sides excavation portion arch；
Fig. 6 is the special flange joint internal structure schematic diagram of the present invention.
Wherein：1, the first excavation portion above left side, 2, below left side the second excavation portion, 3, above right side third excavation portion,
4, the 4th excavation portion of lower right-hand side, 5, arch, 6, temporary support I, 7, assembled flange joint or assembling type node, 8, upside section
Point, 9, active pin shaft, 10, assembled attachment device, 11, be oriented to pressure-bearing attachment device, 12, ring flange, 13, guide plate, 14, top
Portion's block, 15, be oriented to reception device, 16, ring flange II, 17, interpolation clamping close device, 18 ring flange I.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific implementation mode, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or combination thereof；In order to facilitate narration, in of the invention
If there is "upper", "lower", " left side " " right side " printed words, only indicate consistent with the upper and lower, left and right direction of attached drawing itself, not to knot
Structure plays restriction effect.
As background technology is introduced, after the completion of tunnel excavation, in the case of no any supporting measure, pass through people
Power installation arch is constructing tunnel in the process to the construction link of worker's danger the most.During this period, high intensity, high load capacity are applied
Work, worker is easily tired out, and surrounding rock stability is poor in addition, and working security needs strictly to ensure in tunnel construction.Next, with
Demographic dividend disappearance, cost of human resources and the contradiction of engineering economy are increasingly prominent.Meanwhile tunnel CD method excavation supporting mistakes
Cheng Zhong, arch supporting construction need branch to set up, and the node Joining Technology splicing of temporary support and supporting construction is complicated, and construction is tired
It is difficult；Arch weight is big, and manpower construction intensity is big, low construction efficiency, and traditional construction mode progress is slow.Based on problem above, tunnel
There is an urgent need for a kind of safe and efficient mechanized construction technologies for road construction, to improve construction efficiency, guarantee construction safety.
In a kind of typical embodiment of the application, as shown in Figure 1, the present invention proposes above left side the outside tunnel
3 two parts arch of third excavation portion is folded according to merogenesis above one excavation portion 1 and right side, is utilized after forming collapsible arch
Arch fitting machine is hoisted in face of tunnel face；The second excavation portion 2 and the 4th excavation portion 4 of lower right-hand side are respectively adopted below left side
The monolithic construction of one section.
The underground engineering CD methods that the present invention uses excavate assembled supporting construction, including branch's assembled arch and interim branch
Support, which is characterized in that be located above the arch in the first excavation portion of section, the arch in third excavation portion and temporary support I6 respectively
Including more piece, it is connected by assembling type node between adjacent segments；The arch and temporary support I6 in the first excavation portion are to pass through assembly
Formula node or assembled flange are attached；The arch in the first excavation portion and the new flange joint that encircles in third excavation portion carry out
Connection；
Positioned at the arch in the second, the 4th excavation portion of lower section section, temporary support II from there was only a section, second, the
The arch in four excavation portions, temporary support II by assembled flange and top section first, third excavation portion arch and face
When support II be attached.The structure of temporary support I and temporary support II in the present invention is different, interim branch shown in Fig. 2
Support the structure of I.
Whole excavation method is as follows：
By the assembled flange joint or assembling type node 7 between the assembled arch 5 and temporary support I6 in the first excavation portion
It opens and fixes, and side gusset on arch 8 is opened, lifted using arch fitting machine snatch arch 5, specific bit to be lifted to
It postpones, auxiliary fitting machine opens the lower side gusset of arch 5 and temporary support I6；Arch fitting machine accurately adjusts arch position,
Longitudinal register attachment device and previous Pin arches are attached, realize being accurately positioned for branch's arch；Installation left side lower section the
The temporary support of the inverted arch arch 5 and remainder in two excavation portions 2, the supporting arch 5 with top the first excavation portion and interim branch
Support 6 is attached；The supporting arch 5 in installation right side top third excavation portion 3, with 1 supporting arch 5 of the first excavation portion above left side
It is attached, branch's arch is accurately positioned；The inverted arch for installing lower right-hand side the 4th excavation portion 4, with its right side top the
The inverted arch in the second excavation portion 2 is attached below the supporting arch 5 in three excavation portions 3 and left side.
Specific excavation method is as follows：
(1) outside tunnel single-unit arch is carried out assembled and folded, be hoisted to collapsible arch using arch fitting machine
In face of tunnel face.
Specifically, when carrying out arch splicing, mainly to the arch in third excavation portion 3 on the right side of the first excavation portion 1 and its section
Frame 5 carries out preassembling, and the inverted arch in the second excavation portion 2 and the 4th excavation portion 4 can be installed directly below section.
As shown in Figure 1, the construction of CD methods is is excavated successively according to 1-4 sequences and supporting, temporary support 6 is by two excavations
What realization was installed completely.
It is by the branch with the first excavation portion 1 specifically, in the temporary support 6 of excavation portion horizontal dividing lines above section
Shield arch is attached, and mechanization installation is carried out using arch fitting machine；In excavation portion, horizontal dividing lines are with the interim of lower part
Support is the direct inverted arch with upside temporary support and the second excavation portion 2 when the second excavation portion 2 carries out supporting construction erection
It is attached.
(2) connecting node between the assembled arch 5 and temporary support 6 in the first excavation portion 1 is opened and is fixed, and arch
Upside assembling type node 8 is opened, and is lifted using arch fitting machine snatch arch 5.
Specifically, the connecting node between assembled arch 5 and temporary support 6, can be divided into assembling type node and assembled method
Two kinds of forms of blue node.
It is illustrated in figure 3 automatic assembling formula node, using existing technical solution comprising assembled attachment device
It 10 and is oriented to pressure-bearing attachment device 11 and assembled attachment device 10 and is oriented to the active pin shaft 9 of pressure-bearing attachment device 11.Dress
With formula attachment device 10 and it is oriented to the end that pressure-bearing attachment device 11 is welded to adjacent arch, by active pin shaft 9 by two
Part is attached.Assembled attachment device 10 is equipped with spring catch, is equipped with axis hole to pressure-bearing attachment device 11, node is complete
Engaging can make in spring catch insertion axis hole, realize the folding and stretching, extension of arch.
It is illustrated in figure 4 assembled flange joint 7, including a pair of of ring flange 12 and active pin shaft 9, before arch lifting,
Two pieces of assembled flange joints 7 are subjected to complete pairing, fixing bolt is installed.
As shown in Figure 5, Figure 6, it is the special flange joint of designed, designed of the present invention, specifically, being by special flange section
Point and the arch in the first excavation portion 1 above left side are attached.Special flange joint includes the method with centre pilot device
Blue node, positioning baffle node and detachable guiding three kinds of forms of node.Include mainly guide plate 13, top stop 14, is oriented to
Reception device 15, interpolation clamping close device 17, ring flange I18 and ring flange II 16, the ring flange I engage equipped with interpolation
Device 17, is equipped on ring flange II18 and is oriented to reception device 15, and the interpolation clamping close device is inserted into the guiding and connects
In receiving apparatus 15, and realizes and be oriented in the guide plate 14 and the ring flange I, ring flange II cooperations.
The interpolation clamping close device is a protrusion being arranged in the centers ring flange I, and the guiding connects
Receiving apparatus is a guide post being arranged on ring flange II, and the center of the guide post sets that there are one jacks, and described is convex
It rises and is inserted into the jack.
The guide plate 14 includes two, is separately positioned on the both sides of ring flange I, ring flange II, in fan-shaped distribution, institute
Ring flange I, the ring flange II stated is separately mounted on two adjacent arches, and in the ring flange I or ring flange II
Top be equipped with block；Two guide plates 14 respectively symmetrically by a bolt arch installed therein, it is specific such as Fig. 4
It is shown.
Specifically, the installation of the first excavation portion supporting construction, first beats the connecting node between arch 5 and temporary support 6
It opens, after then opening side gusset in the excavation portion, then carries out the mechanization lifting of arch.
(3) after fitting machine snatch arch 5 is lifted to designated position, assist fitting machine by the downside of arch 5 and temporary support 6
Node is opened；Arch fitting machine accurately adjusts 5 position of arch, and longitudinal register attachment device and previous Pin arches are attached,
Realize being accurately positioned for branch's arch.
Refer to the downside position of arch 5 and temporary support 6 after lifting arch 5 specifically, by taking the first excavation portion as an example
In free hang, auxiliary fitting machine pushes arch 5 and 6 downside free end of temporary support outward, makes assembled section
Point 8 is fixed, and realizes the complete erection of the excavation portion arch and temporary support.
The temporary support of the inverted arch arch 5 and remainder in (4) second excavation portions 2, the supporting with top the first excavation portion
Arch 5 and temporary support 6 are attached.
Specifically, referring to being attached by flange joint and the arch 5 and temporary support 6 in top excavation portion.The process
In based on mechanized construction, supplemented by manual operation.I.e.：Arch fitting machine crawl arch 5 is put to designated position, human assistance peace
Dress flange joint is attached.
(5) the supporting arch 5 in installation right side top third excavation portion 3, with 1 supporting arch 5 of the first excavation portion above left side
It is attached.
(6) the inverted arch arch in installation lower right-hand side the 4th excavation portion, and by it with the arch in third excavation portion above right side,
The inverted arch arch in the second excavation portion connects.
The foregoing is merely the preferred embodiments of the application, are not intended to limit this application, for the skill of this field
For art personnel, the application can have various modifications and variations.Within the spirit and principles of this application, any made by repair
Change, equivalent replacement, improvement etc., should be included within the protection domain of the application.
Claims (10)
1. a kind of flange joint, which is characterized in that including ring flange I, ring flange II and guide plate, set on the ring flange I
There is interpolation clamping close device, be equipped on ring flange II and be oriented to reception device, the interpolation clamping close device is inserted into described lead
It realizes and is oriented into reception device, and in the guide plate and the ring flange I, ring flange II cooperations.
2. flange joint as described in claim 1, which is characterized in that the interpolation clamping close device is one and is arranged in flange
One protrusion of the centers disk I, the guiding reception device is a guide post being arranged on ring flange II, described
The center of guide post is set there are one jack, and the protrusion is inserted into the jack.
3. flange joint as described in claim 1, which is characterized in that the guide plate includes two, setting respectively symmetrically
It sets in the both sides of ring flange I, ring flange II, forms a sector structure.
4. flange joint as described in claim 1, which is characterized in that ring flange I, the ring flange II is separately mounted to two
On a adjacent arch, and block is equipped at the top of the ring flange I or ring flange II.
5. a kind of assembled supporting construction, which is characterized in that the connection between its arch is using the flange described in claim 1-3
Node.
6. a kind of underground engineering CD methods excavate assembled supporting construction, including branch's assembled arch and temporary support, feature
It is, it includes more piece to be located above the arch in the first excavation portion of section, the arch in third excavation portion and temporary support I respectively,
It is connected by assembling type node between adjacent segments；The arch and temporary support I in the first excavation portion be by assembling type node or
Assembled flange is attached；The arch in the first excavation portion and the arch in third excavation portion pass through the method described in claim 1-3
Blue node is attached；Arch, temporary support II positioned at the second, the 4th excavation portion of lower section section only have a section from a,
The arch, temporary support II in the second, the 4th excavation portion pass through the arch of assembled flange and top section first, third excavation portion
Frame and temporary support II are attached.
7. a kind of method that supporting construction using described in claim 6 is constructed, which is characterized in that include the following steps：
Step 1：Arch is folded according to merogenesis, in face of handling arch to tunnel face；
Step 2：The connecting node of the arch in the first excavation portion above left side and temporary support I are opened, and by the arch itself
Upside connecting node open, snatch arch is simultaneously lifted, the lower side gusset of the arch itself and temporary support I itself is beaten
It opens；
Step 3：The arch position for adjusting the first excavation portion of left side top, longitudinal register attachment device and previous Pin arches are carried out
Being accurately positioned for branch's arch is realized in connection；
Step 4：The inverted arch arch in installation left side the second excavation portion of lower section, and by the arch phase in the first excavation portion above itself and left side
Even, while temporary support II and temporary support I being attached；
Step 5：The arch in installation right side top third excavation portion, and the arch in itself and the first excavation portion above left side is connected
It connects；
Step 6：The inverted arch arch in lower right-hand side the 4th excavation portion is installed, and by it with the arch in third excavation portion above right side,
The inverted arch arch in the second excavation portion connects.
8. construction method as claimed in claim 7, which is characterized in that the arch in first excavation portion and temporary support I master
To be made of the axis pin of two pieces of ring flanges and mounting flange, by the rotation of axis pin can make the arch and temporary support I into
Row connection and folding；Ring flange is subjected to docking fixation using bolt before the arch lifts, keeps the arch and temporary support I tight
Gu it is integral, complete disposable set up.
9. construction method as claimed in claim 7, which is characterized in that the arch and temporary support I in first excavation portion exist
After the lifting of arch fitting machine, on the downside of assembling type node it is not deployed, the downside of the arch and temporary support I is in freely sagging
State, auxiliary fitting machine stretch the assembling type node that do not carry out, complete the integral erection of branch's arch.
10. construction method as claimed in claim 7, which is characterized in that snatch arch described in step 2 is simultaneously lifted,
Refer to position above the arch using arch fitting machine manipulator the first excavation of snatch portion, is lifted to designated position, and accurately grasp
Manipulator is controlled, so that longitudinal register attachment device is welded the guider set with previous Pin arches surface and is attached fixation, realize and divide
Portion's arch is accurately positioned.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810366333.4A CN108643923B (en) | 2018-04-23 | 2018-04-23 | Fabricated supporting structure and construction method using same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810366333.4A CN108643923B (en) | 2018-04-23 | 2018-04-23 | Fabricated supporting structure and construction method using same |
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| CN108643923A true CN108643923A (en) | 2018-10-12 |
| CN108643923B CN108643923B (en) | 2020-08-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| JP2020143426A (en) * | 2019-03-04 | 2020-09-10 | 株式会社安藤・間 | Connection structure and connection method for tunnel timbering |
| CN113047876A (en) * | 2021-04-25 | 2021-06-29 | 湖南五新隧道智能装备股份有限公司 | Butt joint device for realizing staggered folding of adjacent arches and arch splicing method |
| IT202100014225A1 (en) * | 2021-05-31 | 2022-12-01 | Officine Maccaferri Italia S R L | Rib for supporting and consolidating an excavation, and method for installing such a rib within an excavation |
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