CN209604041U - A kind of assembled is by die mould Tunnel structure - Google Patents
A kind of assembled is by die mould Tunnel structure Download PDFInfo
- Publication number
- CN209604041U CN209604041U CN201822121413.1U CN201822121413U CN209604041U CN 209604041 U CN209604041 U CN 209604041U CN 201822121413 U CN201822121413 U CN 201822121413U CN 209604041 U CN209604041 U CN 209604041U
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- CN
- China
- Prior art keywords
- assembly unit
- tunnel
- unit
- water stop
- stop portion
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Lining And Supports For Tunnels (AREA)
Abstract
A kind of assembled is by die mould Tunnel structure, the technical issues of preliminary bracing mode to the existing steel arch-shelf cooperation concrete for solving to propose in background technique cannot alleviate tunnel circumferential direction deformation.It include assembly unit and water stop portion, the assembly unit and the water stop portion are arranged alternately the domes to form supporting tunnel excavation face, mechanical connection and the compacted water stop portion between the adjacent assembly unit, be bonded on every piece of assembly unit one piece allow pressure unit, this allows pressure unit to be installed between the assembly unit and tunnel excavation face, the utility model structure is simple, and construction operation is convenient, is mainly used for the preliminary bracing in tunnel.
Description
Technical field
The utility model relates to constructing tunnel fields, and in particular to a kind of assembled by die mould tunnel preliminary bracing knot
Structure.
Background technique
The infrastructure constructions scale such as China's traffic, water power, pipe gallery is big, quantity is more, speed is fast, has a high potential.Tunnel
Road engineering is widely adopted as the effective means crossed over mountain after mountain.Currently, mountain tunnel mainly uses composite lining structure, i.e.,
According to the sequence of construction structure of preliminary bracing, splash guard and secondary lining, the preliminary bracing of the structure is often by gunite concrete
It is formed with steelframe etc., common stratum can be well adapted to.
However initial stage, when carrying out preliminary bracing using gunite concrete, concrete first adopts material and mixing by landform and day
Gas is affected, and construction organization cannot need to provide gunite concrete in time for the preliminary bracing in tunnel, therefore cannot be in time
There is provided supporting to the tunnel that drilling depth excavates, and construction of shotcrete speed is slow, especially when jet thickness is larger, initial set and
Final set process time is longer, causes preliminary bracing effect poor, when for special formation, such as expansion stratum, soft stratum, excavation
After deform larger, the larger therefore traditional such supporting construction of generated pressure from surrounding rock cannot be in time to these when deformation
The tunnel excavation of special formation forms effectively preliminary bracing.
Tunnel is usually used steel arch-shelf cooperation and carries out preliminary bracing to the circumferential country rock in tunnel, then adopts
Steel arch-shelf is covered with the concrete of the gunite concrete on circumferential country rock, and injection, this mode is to tunnel initial-stage
Supporting is carried out, there are client's defect, the support patterns of this steel arch-shelf cooperation concrete to belong to for this preliminary bracing mode
Hard supporting, when tunnel circumferential direction country rock generates destructive displacement, steel arch-shelf cooperates concrete that can generate collapsing phenomenon in moment,
The displacement phenomenon of tunnel circumferential direction country rock can not be alleviated.
Utility model content
One, the technical issues of solving
The utility model in view of the deficiencies of the prior art, releases a kind of preliminary bracing structure in tunnel, to solve background skill
The technology that the preliminary bracing mode of the existing steel arch-shelf cooperation concrete proposed in art cannot alleviate tunnel circumferential direction deformation is asked
Topic.
Two, specific technical solution
Realization principle: a kind of assembled includes assembly unit and water stop portion by die mould Tunnel structure, described
Assembly unit and the water stop portion are arranged alternately the domes to form supporting tunnel excavation face, the adjacent assembly unit it
Room machine connection and the compacted water stop portion are bonded with one piece on every piece of assembly unit and allow pressure unit, this allows pressure unit peace
Loaded between the assembly unit and tunnel excavation face.
Working principle: preliminary bracing is carried out by the way of the supporting when excavating to construction tunnel, according to tunnel excavation shape
At tunnel side wall excavation face, tunnel vault excavation face size, radius parameter, determine need the assembly unit quantity and
Assembly unit support is mounted on by construction machinery and support shuttering by the radius of curvature of every piece of assembly unit later
Abutment wall excavation face that tunnel excavation is formed in vault excavation face, when installation, allows pressure unit to be fitted in tunnel circumferential direction country rock for described
On, it needs that the water stop portion is installed in the packaged unit side of matching after being installed each piece of assembly unit, and solid
Water stop portion described in the fixed block is close to the block water stop portion later and installs next assembly unit, and will be described in adjacent two
It is mechanically connected between assembly unit, closely connects between the water stop portion and the assembly unit, recycled with this at this time
The first secondary closure supporting of the abutment wall excavation face, vault excavation face in pairs of tunnel.
Assembly unit structure described in the utility model is simple, using being mechanically connected the adjacent assembly unit and allow pressure
Unit, it is swift to operate, conveniently, the preliminary bracing construction in tunnel is not influenced by landform and weather, can in time, it is rapidly complete
The preliminary bracing of pairs of tunnel excavation, reduces the deformation of tunnel surrounding, substantially increases construction quality and construction safety.
As preferred: described that pressure unit is allowed to be big stroke compressible material.Live tunnel surrounding excavation face can be regarded not
Flat conditions, production different-thickness, the described of different curvature allow pressure unit, and big stroke compressible material has intensity variable, good
The advantages of good plastic deformation ability and good damping effect, avoids traditional slip casting step, and makees in certain predetermined pressure
Under, big stroke compressible material generates certain deformation, the pressure of tunnel surrounding can be more uniformly transmitted to described
On assembly unit, the holding force performance of the assembly unit is played to the maximum extent, is adapted to out-of-flatness tunnel surrounding excavation face
Initial stage installs supporting requirement.
As preferred: the assembly unit two sides are respectively arranged with interconnecting piece, are opened on the interconnecting piece there are two bolt hole, should
Bolt hole is fitted with high-strength fastening bolt.It is connected by screw bolts mode to be attached the adjacent assembly unit, a side
Face can provide a kind of more firm connection type, and the installation effectiveness to the assembly unit on the other hand can be improved, right
The excavation face in tunnel carries out immediate support.
As preferred: the assembly unit is big rigidity hyperbolic arch bar.Configuration aspects use hyperbolic arch structure, with homogenous quantities
Plank frame made by material is compared, and bending resistance, compressive property are the several times of plank frame or more.Therefore with here can be with
Better against the pressure from surrounding rock that tunnel surrounding forms the assembly unit, the resistance to deformation energy of the assembly unit is improved
Power can increase substantially safety and stability for Tunnel.
As preferred: the water stop portion is rubber fastening band, and rubber fastening band lighter weight facilitates installation, rubber fastening band
With certain deformability, the rubber fastening band is squeezed when the adjacent assembly unit is mechanically connected, it can be with
It is filled in rubber fastening band closely between the adjacent assembly unit, better sealing effect can be played, and
And rubber fastening band is used, it can play the role of certain anticorrosive, the protection effect for carrying out preliminary bracing to tunnel can be improved
Fruit.
Pressure unit can be all prefabricated in the factory for the assembly unit, can also manufacture respectively, on-site assembly, for
Single this cycle operation engineering in face tunnel, can be greatly lowered the Tunnel structure construction occupied time,
Significantly improve the speed of application to Tunnel.And in-site installation does not need gunite concrete, can be obviously improved tunnel
Road excavates the operating environment of face, reduces institute's required airflow, save the cost.In-site installation can be constructed using construction machinery, speed
Spend fast, high-efficient, few to construction worker's demand, safety coefficient is big, risk is small, meets current green, environmentally friendly building technology
Mainstream.
The utility model has the following beneficial effects:
1, unit is pressed using described allow, under certain predetermined pressure effect, this allows pressure unit that moderate finite deformation can occur,
For adapting to the irregularity degree of excavation face, to make assembly unit stress as early as possible, slip casting is avoided.By compression
Afterwards described allow pressure unit with tunnel excavation face is compacted contacts, and described allow between pressure unit and the assembly unit in completely
Closely connected bond state, therefore described allow presses unit the pressure of tunnel surrounding more uniformly can be transmitted to each piece of dress
With on unit, pressure from surrounding rock good can be shifted and distributed.And when tunnel surrounding conjugates, the displacement of tunnel surrounding
Pressure is acted on first to allow and is pressed on unit, this allows pressure unit to be squeezed and deformed, and this process can effectively alleviate tunnel
The displacement of country rock can be prevented effectively to stop displacement after tunnel surrounding displacement to a certain extent, and then guarantee tunnel structure
Safety.
2, the assembly unit is set, pressure unit can be all prefabricated in the factory for the assembly unit, on-site assembly,
The Tunnel structure construction occupied time can be greatly lowered, avoid conventionally employed shotcrete layer, prevent
Water layer and two lining concrete are molded into layer construction, improve the construction efficiency of Tunnel, therefore improve tunnel initial-stage branch
Shield resists the deformability of tunnel surrounding, and construction safety is greatly improved.
3, in terms of bearing capacity using resisting tunnel wall rock deformation based on double curvature arch, the plank frame phase with homogenous quantities production
Than being the several times of plank frame or more, therefore further improving resistance tunnel using double curvature arch form its bending resistance, anti-pressure ability
The deformability of country rock improves the supporting intensity that preliminary bracing is carried out to tunnel surrounding.
4, the utility model structure is simple, can be prefabricated, assembled in factory's progress before construction, constructs not by landform and day
Gas influences, and installation operation is fast, less to construction personnel's demand, the excavation face to tunnel can most importantly carry out in time
Preliminary bracing improves support efficiency and supporting intensity to Tunnel.
Detailed description of the invention
Fig. 1 is assembly unit, allows and press unit adhesive structure schematic diagram；
Fig. 2 be assembly unit, allow pressure unit, water stop portion tunnel surrounding excavation face assembling schematic diagram；
Fig. 3 is enlarged diagram at A in Fig. 2.
Description of symbols: 1 assembly unit, 2 water stop portions, 3 allow pressure unit, 4 interconnecting pieces, 5 bolts hole, 6 high-intensitive fastenings
Bolt, 7 country rocks.
Specific embodiment
The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, to make the protection scope of the utility model apparent clear
Define.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
As Figure 1-Figure 2: a kind of assembled is by die mould Tunnel structure, by assembly unit 1 and 2 groups of water stop portion
At the assembly unit 1 and the water stop portion 2 are arranged alternately the domes to form supporting tunnel excavation face, and adjacent is described
Mechanical connection and the compacted water stop portion 2 between assembly unit 1.The assembly unit 1 is big rigidity hyperbolic arch bar, the assembly list
First 1 two sides are respectively arranged with interconnecting piece 4, and the interconnecting piece 4 and the assembly unit 1 are integrally formed, ensure that the interconnecting piece 4
The globality being connect with the assembly unit 1, at the same ensure that the interconnecting piece 4 and the assembly unit 1 integral strength and
Stability is opened on the interconnecting piece 4 there are two bolt hole 5, and the bolt hole 5 is fitted with high-strength fastening bolt 6.Adjacent institute
It states and is carried out between assembly unit 1 by the interconnecting piece 4 and two bolts hole 5 on the interconnecting piece 4, high-strength fastening bolt 6
Connection, in such a way that the high-strength fastening bolt 6 is mechanically connected, on the one hand can be improved installation effectiveness, another party
The bonding strength between the adjacent assembly unit 1 can be improved in face.It is bonded with one piece on every piece of assembly unit 1 and allows pressure
Unit 3, this allows pressure unit 3 to be installed between the assembly unit 1 and tunnel excavation face, described that pressure unit 3 is allowed to be that big stroke can
Compression material, this allows pressure unit 3 to be specially light foam concrete.The water stop portion 2 is the trapezoidal rubber water-proof of water-swellable
Band.
Working principle: the cross dimension excavated according to Tunnel Design determines institute required for each cross section in tunnel
State 1 quantity of assembly unit and with the assembly unit 1 match described in allow pressure unit 3 quantity, and determine every piece of dress
With allowing the size and radius of curvature of pressure unit 3 described on unit 1 and the block assembly unit 1；According to determining each piece
Assembly unit 1 and it is each piece corresponding described in allow the size of pressure unit 3 and radius of curvature to carry out in factory prefabricated, the assembly is singly
Member 1 is made of double curvature arch steel, is poured prefabricated described allow on each piece of assembly unit 1 by template and is pressed unit 3, this
When each piece of assembly unit 1 by on the block described in allow pressure 3 tight bond of unit formed an entirety；Later by applying
Work machinery according in tunnel erection sequence from top to bottom the assembly unit 1 is installed, make pressure unit 3 close for described when installation
Paste abutment wall excavation face, the vault excavation face in tunnel, and to be mounted on the abutment wall excavation face in tunnel, each piece in vault excavation face
The assembly unit 1 carries out precompressed, and described allow on the block assembly unit 1 presses unit 3 that will be generated certain deformation by compression at this time,
And the assembly unit 1 is adjusted to designed elevation；Trapezoidal rubber fastening band is installed later, trapezoidal rubber fastening band is mounted on institute
The side of interconnecting piece 4 is stated, two through-holes are provided on trapezoidal rubber water-proof band, for wearing the high-strength fastening bolt 6；Later
The next assembly unit 1 is installed in the trapezoidal rubber fastening band side of installation, and by the interconnecting piece 4, be set to should
Bolt hole 5 on interconnecting piece 4, the through-hole on the trapezoidal rubber water-proof band, the high-strength fastening bolt 6 is threaded through
It in through-hole on the bolt hole 5, trapezoidal rubber water-proof band and is threadedly coupled, is completed at this time to the adjacent assembly unit 1
It is fastenedly connected.Later with same installation method to be bonded with the assembly unit 1 for allowing pressure unit 3 and it is described only
Water portion 2 carries out alternately installation, and the abutment wall excavation face in tunnel, vault excavation face are covered closed cyclization.
It, for the ordinary skill in the art, can although having shown that and describing the embodiments of the present invention
These embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit with understanding, repaired
Change, replacement and variant, subject to the scope of the utility model is defined by the following claims.
Claims (5)
1. a kind of assembled is by die mould Tunnel structure, it is characterised in that: include assembly unit (1) and water stop portion
(2), the assembly unit (1) and the water stop portion (2) are arranged alternately the domes to form supporting tunnel excavation face, adjacent
Mechanical connection and the compacted water stop portion (2) between the assembly unit (1), are bonded with one on every piece of assembly unit (1)
Block, which allows, presses unit (3), this allows pressure unit (3) to be installed between the assembly unit (1) and tunnel excavation face.
2. a kind of assembled according to claim 1 is by die mould Tunnel structure, it is characterised in that: the pressure that allows
Unit (3) is big stroke compressible material.
3. a kind of assembled according to claim 1 is by die mould Tunnel structure, it is characterised in that: the assembly
Unit (1) two sides are respectively arranged with interconnecting piece (4), are opened on the interconnecting piece (4) there are two bolt hole (5), which is adapted to
There are high-strength fastening bolt (6).
4. a kind of assembled according to claim 1 or 2 or 3 is by die mould Tunnel structure, it is characterised in that: institute
Stating assembly unit (1) is big rigidity hyperbolic arch bar.
5. a kind of assembled according to claim 1 or 2 or 3 is by die mould Tunnel structure, it is characterised in that: institute
Stating water stop portion (2) is rubber fastening band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822121413.1U CN209604041U (en) | 2018-12-18 | 2018-12-18 | A kind of assembled is by die mould Tunnel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822121413.1U CN209604041U (en) | 2018-12-18 | 2018-12-18 | A kind of assembled is by die mould Tunnel structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209604041U true CN209604041U (en) | 2019-11-08 |
Family
ID=68397570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822121413.1U Expired - Fee Related CN209604041U (en) | 2018-12-18 | 2018-12-18 | A kind of assembled is by die mould Tunnel structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209604041U (en) |
-
2018
- 2018-12-18 CN CN201822121413.1U patent/CN209604041U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191108 Termination date: 20201218 |