CN110219695A - A kind of tunnel compound polyurethane material conduit and application method - Google Patents
A kind of tunnel compound polyurethane material conduit and application method Download PDFInfo
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- CN110219695A CN110219695A CN201910465300.XA CN201910465300A CN110219695A CN 110219695 A CN110219695 A CN 110219695A CN 201910465300 A CN201910465300 A CN 201910465300A CN 110219695 A CN110219695 A CN 110219695A
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- 239000004814 polyurethane Substances 0.000 title claims abstract description 64
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 63
- 239000000463 material Substances 0.000 title claims abstract description 53
- 150000001875 compounds Chemical class 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000000835 fiber Substances 0.000 claims abstract description 36
- 230000002787 reinforcement Effects 0.000 claims abstract description 23
- 239000002131 composite material Substances 0.000 claims abstract description 20
- 239000003365 glass fiber Substances 0.000 claims description 16
- 239000011521 glass Substances 0.000 claims description 14
- 239000004744 fabric Substances 0.000 claims description 7
- 239000011152 fibreglass Substances 0.000 claims description 7
- 239000012779 reinforcing material Substances 0.000 claims description 5
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 4
- 229920006231 aramid fiber Polymers 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 239000004917 carbon fiber Substances 0.000 claims description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- 238000003786 synthesis reaction Methods 0.000 claims description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 3
- 239000012948 isocyanate Substances 0.000 claims description 3
- 150000002513 isocyanates Chemical class 0.000 claims description 3
- 239000002086 nanomaterial Substances 0.000 claims description 3
- 150000005846 sugar alcohols Polymers 0.000 claims description 3
- 229920002748 Basalt fiber Polymers 0.000 claims description 2
- 229910021529 ammonia Inorganic materials 0.000 claims description 2
- -1 graphite Alkene Chemical class 0.000 claims description 2
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims description 2
- 238000009736 wetting Methods 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims 1
- 229910002804 graphite Inorganic materials 0.000 claims 1
- 239000010439 graphite Substances 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 19
- 239000010959 steel Substances 0.000 abstract description 19
- 239000002184 metal Substances 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 8
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 230000036647 reaction Effects 0.000 abstract description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 229910021389 graphene Inorganic materials 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000002105 nanoparticle Substances 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 229920005749 polyurethane resin Polymers 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 229910001339 C alloy Inorganic materials 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 206010057071 Rectal tenesmus Diseases 0.000 description 1
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 208000012271 tenesmus Diseases 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
- C08J5/043—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with glass fibres
-
- 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
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/04—Distributing means for power supply in mines
- E21F17/06—Distributing electric power; Cable networks; Conduits for cables
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Power Engineering (AREA)
- Civil Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a kind of tunnel compound polyurethane material conduits and application method, it is installed on tunnel inner wall face, conduit ontology including hollow structure, deviate from tunnel inner wall face side in the conduit ontology, length direction along conduit is provided with long channel opening at the intermediate position of width, wherein, the conduit is made of fiber reinforcement polyurethane composite material.The present invention is fixed on tunnel inner wall face using conduit made of fiber reinforcement polyurethane composite material instead of metal channels in the prior art, and the bracket for supporting cable is safely and reliably fixed on to the target fixed position of setting.It avoids in the prior art, because of the effects of conduction for the metal fixing bolt being inserted into the steel reinforcement cage inside tunnel duct piece, cause the steel reinforcement cage that corrosiveness caused by cell reaction occurs and damages, and facilitate live aperture, reduce in the prior art, because metal channels corrode and cause cable bearer sliding etc. may cause tunnel cable danger accident possibility.
Description
Technical field
The present invention relates to tunnel conduit and application method more particularly to a kind of tunnel compound polyurethane material slots
Road and application method.
Background technique
In transport development, especially in mountain railway construction and metro construction, it is often necessary to tunneling.In life
It produces in practice, after tunneling, it is necessary first to be laid with one layer of tunnel duct piece, on the tunnel inner wall face excavated to reinforce tunnel
Support effect.
The tunnel duct piece is usually to be formed by curing using one reinforcement cage structure of cement mortar concreting.And in tunnel
In, especially in urban subway tunnel, it is often necessary to be laid with power cable on the inner wall in tunnel, communicaton and signal cable, let out
Reveal the various cables such as coaxial cable (leakage cable) (leakage coaxial cable referred to as leakage cable, while electromagnetic wave longitudinally transmits in leaking cable
Pass through slot outwardly radiated electromagnetic wave；Extraneous electromagnetic field can also be sensed inside leakage cable by slot and be transmitted to reception
End).
In construction, it is typically necessary and cable is placed in one or more cable beareves, and the cable bearer
Usually it is fixed on by one group of bolt multiple along tunnel hollow conduit circumferentially, these conduits are usually steel system at present
Product, including S275JR (a kind of engineering and structural steel, European standard EN10025 (1994)), Q345B (a kind of low-carbon alloy steel)
Deng fixed to be laid on the tunnel duct piece.
The conduit in the prior art be usually therebetween position, be provided with long channel opening alongst, and
Using T-bolt, it is located inside the middle airway of the conduit by its bolt head expanded, is realized and assembled with this fit system, spiral shell
The outside of the conduit is then stretched out in bar portion position from the elongated slot opening, for assembling cable trough bracket.
Because the conduit is usually that the circumferencial direction (circumferential direction) along tunnel is arranged on the tunnel inner wall face, structure is needed
As soon as at the circumferential shapes in vertical plane, therefore the bolt for being used to fix the bracket thereon is easy to slide downwards along elongated slot.
Therefore, in order to guarantee the fixed effect of the bolt, the sliding for causing the cable bearer, the prior art are prevented
In, usually on the inner wall of the long channel opening, perpendicular to the length direction of the conduit, it is provided with the tooth being parallel to each other
Line, the national standard of the groove are 1.5 millimeters of height, 3 millimeters of spacing.Also, on the bolt for being fixed on the conduit, mainly
It is also correspondingly to be combined with groove in the groove position on the elongated slot inner wall on bolt head.
It is postponed in use, the bolt is moved to preset fixed bit, uses nut fitting outside conduit opening
In on the bolt, it is close to the inner wall, the bolt by tightening the groove after the nut, pull-up on the bolt head
Groove on head is just engaged the groove on the conduit opening inner wall, to fix the bolt well and fix thereon
Bracket.
Conduit made of steel described in the prior art is when being fixed on tunnel inner wall face, due to needing using same
Fixing bolt made of steel to be fixed on the steel reinforcement cage inside the tunnel duct piece, at this point, because the conduit be by
Metal is made, and mainly steel is made, and the fixing bolt contacted with the steel reinforcement cage in tunnel duct piece will play the role of conductor,
It in view of the humidity in tunnel is higher, is chronically in the high humidity environment in tunnel, the conduit is spuious made of steel
It is easier to that galvano-cautery occurs under the action of electric current, further by the fixing bolt being also made of metal, be easy to cause
The galvano-cautery of reinforcement cage structure in the tunnel duct piece, to greatly reduce the service life of the tunnel duct piece.
Meanwhile the groove on the opening inner wall of the conduit is set, it is contemplated that its Height Standard is only 1.5 millis
Rice loses fixed effect with regard to easily rusted, and so as to cause the cable bearer together with cable thereon, slide downward is moved
Position is carried out the equipment belt for connecting the cable dangerous.
In addition, the manufacture of metallic channel usually requires to preset pilot hole, but for site-assembled varying environment situation
When with angle of assembling, it is possible to need to need to carry out in-situ processing according to actual assembly, otherwise may be extremely difficult to fill
It is excessively high with requirement, or to the required precision at scene.
Therefore, the existing technology needs to be improved and developed.
Summary of the invention
In view of above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a kind of tunnel compound polyurethane material slots
Road and application method to reduce the corrosiveness to the tunnel duct piece, and enhance to the bolt and bracket being mounted thereon
Fixed effect facilitates site operation, extends the service life of conduit.
Technical scheme is as follows:
The invention discloses a kind of tunnel compound polyurethane material conduits, are installed on tunnel duct piece, and the tunnel duct piece is solid
It is scheduled on tunnel inner wall face, the conduit ontology including hollow structure, deviates from the side in tunnel inner wall face in the conduit ontology,
The intermediate position of the width of the conduit ontology is provided with long channel opening, length direction of the long channel opening along the conduit ontology
Extend, the opening width of the long channel opening is less than the width that the conduit ontology deviates from tunnel inner wall face side, wherein described
Conduit is made of fiber reinforcement polyurethane composite material, and the fiber reinforcement polyurethane composite material includes polyurethane wetting fibre
Reinforcing material.
Preferably, the polyurethane is by dual-component polyurethane Material synthesis, comprising: isocyanates and polyalcohol are by weight
1.2:1 being synthesized to 1.4:1.
It is highly preferred that the polyurethane is also mixed with graphene nano material.
Preferably, the fibre reinforced materials includes glass fibre, carbon fiber, aramid fiber, high-strength and high-modulus polyethylene fiber
One of peacekeeping basalt fibre is a variety of.
It is highly preferred that being calculated with weight ratio, the fibre reinforced materials content is 65-80%, and the polyurethane content is
35-20%.
It is highly preferred that the fibre reinforced materials is glass fibre, including fibre glass roving.
It is further preferred that the glass fibre further includes glass mat and/or glass fabric, with weight ratio meter
It calculates, the fibre glass roving is 80-50 parts, and the glass mat is 10-20 parts, and the glass fabric is 10-30 parts.
The invention also discloses the application methods of the compound polyurethane material conduit, wherein a cooperation at least bolt,
The bolt head of the bolt is located at the inside of the conduit ontology, and screw rod stretches out the long channel opening, and the bolt is along the length
Channel opening is moved upward to the fixed position of target in the channel lengths side.
Preferably, the compound polyurethane material conduit further includes a gasket, and the centre of the gasket, which is provided with, to be passed through
The aperture of the screw rod on one bottom surface of the gasket, fixes at least two pillars, is located at the two sides of the aperture.
It is highly preferred that the application method of the compound polyurethane material conduit, comprising the following steps:
A. the circumferentially fixed conduit along the tunnel is to tunnel duct piece；
B. the fixed position of target of the bolt is selected；
C. in the target fixed position, the two sides conduit wall surface of the long channel opening, at least one fixation hole, institute are respectively opened
It states the corresponding simultaneously loose fit of fixation hole and accommodates the pillar；
D. the bolt is moved to the fixed position of the target, and the gasket is placed on the screw rod along the aperture；
E. the nut being a tight fit on the screw rod is twisted, the pillar is pushed into and is contained in the fixation hole, the fixed spiral shell
The position of bolt.
Tunnel provided by the present invention compound polyurethane material conduit and application method, it is multiple using fiber reinforcement polyurethane
Conduit is made in condensation material, instead of metal channels in the prior art, is fixed on tunnel inner wall face, for that will support cable
Bracket be safely and reliably fixed on the target fixed position of setting.It avoids in the prior art, because of insertion tunneltron
The effects of conduction of metal fixing bolt in steel reinforcement cage inside piece, causes the steel reinforcement cage that corruption caused by cell reaction occurs
Erosion is acted on and is damaged, and facilitates live punching, and reduce in the prior art, causes cable bearer because of metal channels corrosion
The accident that sliding etc. may cause tunnel cable danger is possible, to have great social and economic implications.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of a piece of conduit in compound polyurethane material conduit of the invention.
Fig. 2 is the structural schematic diagram of compound polyurethane material conduit of the invention by bolt after fixed.
Fig. 3 is the gasket construction schematic diagram of compound polyurethane material conduit of the invention.
Fig. 4 is the compound polyurethane material conduit of the invention application method flow chart that bolt is fixed.
In figure, 1. conduit ontologies, 2. deviate from tunnel inner wall face side, 3. long channel openings, 4. bolts, 5. bolt heads, 6. spiral shells
Bar, 7. gaskets, 8. apertures, 9. pillars, 11. fixation holes, 12. nuts
Specific embodiment
The present invention provides a kind of tunnel compound polyurethane material conduit and application method, to make the purpose of the present invention, skill
Art scheme and effect are clearer, clear, referring to the drawings and give an actual example that the present invention is described in more detail.It should manage
Solution, the specific embodiments described herein are merely illustrative of the present invention, is not intended to limit the present invention.
Composite material used at present is all much organic high polymer material as matrix, the compound nothing as reinforcement
Machine or organic fiber reinforcing material, including carbon fiber, glass fibre, aramid fiber etc., pass through pultrusion.Its principle is institute
It states organic high polymer material and braiding binding is carried out to the fibre reinforced materials being aligned in generally parallel relation.And polyurethane material, example
As polyurethane resin usually has extraordinary bonding force to fibre reinforced materials surface, simultaneously because having excellent elasticity
The intensity of its ontology is also relatively high, therefore is the good selection of the basis material in composite material.So the present invention selects poly- ammonia
Ester material makes tunnel fiber reinforcement polyurethane composite material conduit.
In a preferred embodiment of the present invention, similar with existing tunnel conduit technology, as shown in Figure 1, of the invention
Tunnel fiber reinforcement polyurethane composite material conduit, along the circumferentially distributed of tunnel, according to actual needs, installation arranged in parallel
In the ring for the circle circle arranged in parallel on the tunnel duct piece for being fixed on tunnel inner wall face, constituting the length direction perpendicular to tunnel
Shape structure (conduit with certain predetermined radian can be used at this time, or directly carry out straight conduit according to tunnel inner wall
Bend mode use), it also can be set in the axial direction along length of tunnel direction (at this time using straight conduit).
The compound polyurethane material conduit, the conduit ontology 1 including hollow structure, in deviating from for the conduit ontology 1
Tunnel inner wall face side 2 is provided with long channel opening 3, long 3 edge of channel opening at the intermediate position of the width of the conduit ontology 1
The length direction of the conduit ontology 1 extends, that is, after being installed on tunnel inner wall face, along the circumferentially extending in tunnel.The elongated slot
The opening width of opening 3 is less than the width away from tunnel inner wall face side 2 of the conduit ontology 1, to deviate from tunnel described
Still there are the conduit wall surfaces of one fixed width on road inner wall side 2, for using when installation.
The conduit is made of fiber reinforcement polyurethane composite material, wherein the polyurethane is by dual-component polyurethane
Material synthesis, comprising: isocyanates and polyalcohol are synthesized by weight 1.2:1 to 1.4:1.In one more preferably embodiment,
Graphene nano material is also mixed in the polyurethane.When being mixed into graphene nano particle, the graphene nano particle is equal
It is even to be scattered in polyurethane, thus on the fiber being uniformly distributed in the fibre reinforced materials of less parallel distribution or all
It encloses, and because graphene has the characteristic of high surface area, therefore there is biggish adhesive force to the fibre reinforced materials accompanying by it,
It can greatly help to bind the fibre reinforced materials, thus not reducing institute by toughness and hardness, the intensity of its own
While the vertical mixing coefficient of the composite material of generation, the low short slab of the transverse strength of composite material is greatly compensated for.?
In a preferred embodiment of the invention, according to weight ratio, when the polyurethane is selected as 20-30 parts, the graphene
Nano particle is preferably 0.001-0.045 parts.
In an embodiment of the present invention, the fibre reinforced materials can be glass fibre, carbon fiber, aramid fiber and profound
One of military rock fiber is a variety of, is calculated with weight ratio, and experiment shows that when the fibre reinforced materials content be 65-80%,
When the polyurethane content is 35-20%, preferable mechanical property can be obtained.
The fibre reinforced materials is preferably glass fiber material, especially fibre glass roving.It is described according to weight ratio
When content of glass fiber is selected as 65-80%, the polyurethane content is selected as 35-20%；More preferably, the content of glass fiber
For 75-80%, the polyurethane content is 25-20%；Optimal scheme is that the glass fibre is 78-80%, described poly-
Urethane is 22-20%.
In an embodiment of the present invention, the glass fibre can root only with fibre glass roving, diameter
Factually border it needs to be determined that.But in the preferred embodiment, the glass fibre can also include glass mat, or/
With glass fabric etc., specific ratio can are as follows: according to weight ratio, described fibre glass roving 80-50 parts, and the glass fibre
10-20 parts of felt, described glass fabric 10-30 parts.Increase glass mat and/or the advantages of glass fabric be can be into
One step strengthens the polyurethane composite fibre reinforcing material in the mechanical property of different directions.
The polyurethane composite fibre reinforcing material of this patent preferred embodiment is by OWENS CORNING Asia-Pacific research and development centre
(OWENS CORNING Asia Pacific Science&Technology Center) completes examining report.
Sample message:
Glass: Owens Corning PS4100, Tex4400, parts by weight: 80 parts
Resin: Huntsman SUP9706/SK14001 polyurethane resin, parts by weight: 20 parts
Additive: graphene particles (parts by weight: 0.03 part)
Test result: as shown in table 1.
1:0 ° of bending property of table
And as a comparison, the yield limit of common S275JR steel is 275MPa, tensile strength 410-560MPa；And Q345B
The yield limit of steel is 345MP, tensile strength 470-630MPa.
It can be seen that the mechanical property of glass fiber reinforced polyester urethane composite material of the present invention is significantly super
Cross the mechanical property of steel used by the prior art.And composite material conduit used by the application has more corrosion-resistant, matter
The advantages of amount is light, and intensity is high, good insulating, easy cutting operation.
Fiber reinforcement polyurethane composite material conduit of the present invention is when setting up, when tunnel has been dug, tunneltron
After piece is laid in tunnel wall, it is first determined need to be laid with the position of various cables, mainly circumferentially laid along tunnel
The cable.Then on tunnel duct piece, locate at the desired position, be laid with and fix polyurethane composite provided by the present invention
Hopper road.Compound polyurethane material conduit of the invention is compared to existing metal steel conduit, has and is easy cutting operation
The advantages of, it can be cut, be laid so being easier assembling according to the actual needs of the site completely.
During installation, when the fiber reinforcement polyurethane composite material conduit is on being circumferentially fixed on the tunnel duct piece
Afterwards, the long channel opening 3 is circumferentially extended towards tunnel internal, and along tunnel.When needing that cable bearer is installed, first
In the conduit ontology 1 on tunnel inner wall face side 2, on the both sides wall surface of the long channel opening 3, the bracket is needed
It wants fixed target fixed position to perform label, is then punched in mark, obtain fixation hole 11.Because the conduit is
Compound polyurethane material production, therefore scene punching is easy to operate.
Then it by a bolt 4 from the both ends of the conduit ontology 1, is placed in the cavity inside the conduit ontology 1, such as schemes
Shown in 2, the bolt head 5 of the bolt 4 is located at the inside of the conduit ontology 1, and the screw rod 6 of the bolt 4 stretches out the elongated slot
Opening 3.The fixed position of target required for the bolt 4 is moved to along 1 length direction of conduit ontology again.
At this point, covering a upper gasket 7 on the screw rod 6, the specific structure is shown in FIG. 3 for the gasket 7, uses metal material
Material production, such as steel, the gasket 7 is provided at intermediate position can be by the aperture 8 of the screw rod 6, when installation, the gasket
7 are inserted on the screw rod 6.One bottom surface of the gasket 7 is fixed at least two pillars 9, is located at the aperture 8
Two sides, the usually two sides in the longer width direction of the gasket 7.
The size of the pillar 9 and position, the slightly loose cooperation of size and position with the fixation hole 11.In production practices
In, because the gasket 7 first produces, therefore the size of the pillar 9 and position are fixed already in installation.When installation, only
The size and position according to the pillar 9 are needed, in the two sides channel wall of the long channel opening of the compound polyurethane material conduit
On face, the two sides of corresponding target fixed position, get corresponding fixation hole 11.
After the fixation hole 11 is accomplished fluently, the screw rod 6 is inserted in the aperture 8 by the gasket 7 along its center, also,
The pillar 9 is kept to fairly fall in the fixation hole 11.A upper nut 12 is covered on the screw rod 6 again, is screwed, it will be described convex
Column 9 is fixed in the fixation hole 11.To fix the bolt 4, and then the branch being fixedly connected on the bolt 4
Frame.
The specifically used method of compound polyurethane material conduit provided by the present invention, process as shown in figure 4, include with
Lower step:
A. circumferential, the fixed conduit along the tunnel is to being affixed on the tunnel duct piece in tunnel inner wall face；The fixation can be with
It is completed by the modes such as being spirally connected or welding.
B. the fixed position of target of the bolt 4 is selected；Make corresponding label.The fixed position of the target is described
The position to be fixed of bolt 4, namely the bracket of support cable need to install fixed position.Such as in one section of straight tunnel
In, the corresponding fixed position of the target should be located at same height on each conduit, so that the cable can remain as far as possible
Level passes through.
C. at least one is respectively opened on the conduit wall surface of the two sides of the long channel opening in the target fixed position
Fixation hole 11, the fixation hole 11 is corresponding and loosely accommodates the pillar 9；That is two fixation holes 11 and the opening
The triangle of composition should be with the equivalent of triangle of opening and two pillars 9 composition on the gasket 7, will be described to pass through
Pillar 9 is included in the fixation hole 11, and fixes the position of the gasket 7, prevents from gliding, while passing through 7 center of gasket
Aperture 8 is placed on the screw rod 6, is fixed to the bolt 4, to guarantee the phenomenon that cable will not send tenesmus.
D. the bolt 4 is moved to the fixed position of the target, and the gasket 7 is placed on the screw rod 6 along the aperture
On；And it is pushed into the pillar 9 and is included in the fixation hole 11.
E. it tightens the nut 12 for cooperating the screw rod 6, locks to keep the pillar 9 to be contained in the fixation hole 11, from
And bolt 4 is fixed on the fixed position of the target.
In conclusion tunnel provided by the present invention compound polyurethane material conduit and application method, are increased using fiber
Conduit is made in strong compound polyurethane material, instead of metal channels in the prior art, is fixed on tunnel inner wall face, is used for
The bracket for supporting cable is safely and reliably fixed on to the target fixed position of setting.It avoids in the prior art, because
The effects of conduction of the metal fixing bolt in steel reinforcement cage inside insertion tunnel duct piece, causes the steel reinforcement cage that electrolysis occurs instead
It answers caused corrosiveness and damages, and reduce in the prior art, cause cable bearer to slide because of metal channels corrosion
It is possible etc. the accident that may cause tunnel cable danger, to have great social and economic implications.
It should be understood that the application of the present invention is not limited to the above for those of ordinary skills can
With improvement or transformation based on the above description, all these modifications and variations all should belong to the guarantor of appended claims of the present invention
Protect range.
Claims (10)
1. a kind of tunnel compound polyurethane material conduit, is installed on tunnel duct piece, the tunnel duct piece is fixed in tunnel
On wall surface, the conduit ontology including hollow structure deviates from the side in tunnel inner wall face in the conduit ontology, in the conduit sheet
The intermediate position of the width of body is provided with long channel opening, and the long channel opening extends along the length direction of the conduit ontology, described
The opening width of long channel opening is less than the width that the conduit ontology deviates from tunnel inner wall face side, which is characterized in that the slot
Road is made of fiber reinforcement polyurethane composite material, and the fiber reinforcement polyurethane composite material includes that polyurethane wetting fibre increases
Strong material.
2. compound polyurethane material conduit according to claim 1, which is characterized in that the polyurethane is by the poly- ammonia of two-component
Ester Material synthesis, comprising: isocyanates and polyalcohol are by weight 1.2: 1 to 1.4: 1 synthesis.
3. compound polyurethane material conduit according to claim 2, which is characterized in that the polyurethane is also mixed with graphite
Alkene nano material.
4. compound polyurethane material conduit according to claim 1 to 3, which is characterized in that the fibre reinforced materials
Including one of glass fibre, carbon fiber, aramid fiber, high-strength high-modulus polyethylene fiber and basalt fibre or a variety of.
5. compound polyurethane material conduit according to claim 4, which is characterized in that calculated with weight ratio, the fiber
Reinforcing material content is 65-80%, and the polyurethane content is 35-20%.
6. compound polyurethane material conduit according to claim 4, which is characterized in that the fibre reinforced materials is glass
Fiber, including fibre glass roving.
7. compound polyurethane material conduit according to claim 6, which is characterized in that the glass fibre further includes glass
Fibrofelt and/or glass fabric, are calculated with weight ratio, and the fibre glass roving is 80-50 parts, and the glass mat is
10-20 parts, the glass fabric is 10-30 parts.
8. the application method of -7 any compound polyurethane material conduits according to claim 1, which is characterized in that be engaged to
A few bolt, the bolt head of the bolt are located at the inside of the conduit ontology, and screw rod stretches out the long channel opening, the bolt
Along the long channel opening, the fixed position of target is moved upward in the channel lengths side.
9. application method according to claim 8, which is characterized in that further include a gasket, the centre of the gasket is opened
Having on one bottom surface of the gasket, can be fixed at least two pillars, be located at the aperture by the aperture of the screw rod
Two sides.
10. application method according to claim 9, which comprises the following steps:
A. the circumferentially fixed conduit along tunnel is to tunnel duct piece；
B. the fixed position of target of the bolt is selected；
C. in the target fixed position, the two sides conduit wall surface of the long channel opening, at least one fixation hole is respectively opened,
The fixation hole is corresponding and loose fit accommodates the pillar；
D. the bolt is moved to the fixed position of the target, and the gasket is placed on the screw rod along the aperture；
E. the nut being a tight fit on the screw rod is twisted, the pillar is pushed into and is contained in the fixation hole, the fixed spiral shell
The position of bolt.
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| CN201910465300.XA CN110219695A (en) | 2019-05-30 | 2019-05-30 | A kind of tunnel compound polyurethane material conduit and application method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910465300.XA CN110219695A (en) | 2019-05-30 | 2019-05-30 | A kind of tunnel compound polyurethane material conduit and application method |
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| CN110219695A true CN110219695A (en) | 2019-09-10 |
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ID=67818646
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| CN1190679C (en) * | 1999-09-22 | 2005-02-23 | 美利肯公司 | Conduit insert for optical fiber cable |
| EP2081268A1 (en) * | 2008-01-21 | 2009-07-22 | Zurecon AG | Device with a cable channel |
| CN103321318A (en) * | 2012-03-22 | 2013-09-25 | 拜耳知识产权有限责任公司 | Use of fibre-reinforced polyurethane for forming a rail for a fitting assembly |
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Application publication date: 20190910 |