CN109505556A - Expand the restorative procedure of Grouting Pipe and tunnel lining concrete defect - Google Patents
Expand the restorative procedure of Grouting Pipe and tunnel lining concrete defect Download PDFInfo
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- CN109505556A CN109505556A CN201811250022.8A CN201811250022A CN109505556A CN 109505556 A CN109505556 A CN 109505556A CN 201811250022 A CN201811250022 A CN 201811250022A CN 109505556 A CN109505556 A CN 109505556A
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3225—Polyamines
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4804—Two or more polyethers of different physical or chemical nature
- C08G18/4812—Mixtures of polyetherdiols with polyetherpolyols having at least three hydroxy groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
- C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/42—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
- C09K8/428—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells for squeeze cementing, e.g. for repairing
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/42—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
- C09K8/44—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing organic binders only
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Polymers & Plastics (AREA)
- Medicinal Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Geochemistry & Mineralogy (AREA)
- Sealing Material Composition (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a kind of restorative procedure for expanding Grouting Pipe and tunnel lining concrete defect, the restorative procedure of the tunnel lining concrete defect includes: S10, cleaning coring hole；S20, installation expansion Grouting Pipe and exhaust pipe；S30, production packing material；S40, the filling packing material；S50, fire-retardant decorative material is smeared.The restorative procedure of tunnel lining concrete defect of the invention is injected, pressure maintaining and control pressurer system using the construction equipment of lightweight filler (such as polyurethane foam material, epoxy material, light mortar etc.) and profession using pressure.By preventing secondary chip off-falling construction technology, convenient and fast support process smears the composition such as anti-contact net flare polymer mortar, and making the present invention that there is the low bulk density of material, high-bond, curing rate is fast, the features such as construction equipment is light, tooling concise in technology, without template and supports.
Description
Technical field
The present invention relates to a kind of renovation techniques for expanding Grouting Pipe and tunnel lining concrete coring hole, more particularly to one kind
The restorative procedure of tunnel lining concrete defect.
Background technique
China is man, a Ge Duo mountain country, so tunnel amount is also very huge.In tunnel-liner (two linings) construction, due to arch
It is special to push up position, in construction may it is reserved because of placing, plugging hole setting is unreasonable, the pump concrete slump is big, and pumping is mixed
Solidifying soil pressure controls bad, concrete shrinkage, and the reasons such as supporting out-of-flatness inevitably will cause two lining vaults and concrete
It is not closely connected just to build branch mask, arch concrete, which binds, is also easy to produce phenomena such as coming to nothing, is empty.
Due to secondary lining defect, cause lining cutting discontinuity, is degrading lining cutting stress condition, changes lining design
Stress, lining cutting actual loading can exceed that design stress range, under external load action, in addition other unfavorable factor shadows
It rings, the probability that tunnel-liner destroys just will increase.
To realize the detection to tunnel-liner, generally made in the prior art by corning machine boring and coring completing coring
It after industry, needs to block coring hole, but mending mortar is generally used to the closure in coring hole in the prior art, it is this
Method for blocking is embodied in practical applications to the safe operation of later train there are certain hidden danger:
1. repairing using mending mortar, there are problems that the concrete binding force at new and old interface.Simultaneously because the bulk density of mortar
Big (general slurry density is all at 2200kg/ cubic metres) compared, sagging gravity is bigger, and there are the danger of tunnel chip off-falling
Property.
2. by the way of even if to coring hole defect, loose stone is not repaired around the polishing, although it is contemplated that solve with
The dangerous hidden danger of tunnel chip off-falling afterwards, but affect the aesthetic appearance of the quality in tunnel, at the same the presence in coring hole will lead to
The hidden danger for the treatment of technology for tunnel seepage, main forms are afterwards: if splash guard is mated formation, welding, which exists, destroys, in the king-sized rain of rainwater
There is percolating water in the place in coring hole often in the place of concrete structure weakness in season, hydraulic pressure.
Summary of the invention
It is an object of the present invention to provide a kind of restorative procedures for expanding Grouting Pipe and tunnel lining concrete defect, at least solve
It has determined one of above-mentioned technical problem.
The present invention solve technical problem adopt the following technical scheme that a kind of expansion Grouting Pipe comprising sleeve, fixed plate,
Expand conehead, expansion rod, expansion bolt, pallet and fixture nut；
One end of the sleeve offers at least one sleeve notch along its axial direction；
It is provided with fixed plate on the inner sidewall of the sleeve, offers through-hole in the middle part of the fixed plate；
Radius is gradually reduced the expansion conehead from left to right, and the diameter of the expansion conehead is greater than the interior of the sleeve
Diameter；The lesser one end of the expansion conehead diameter is fixed in one end of the expansion rod, and the other end passes through the fixed plate, is located at
The right part of the fixed plate；
It is formed with external screw thread on the expansion rod, and is arranged with expansion bolt on the expansion rod, the expansion bolt
Cooperate with the external screw thread of the expansion rod；
The outside wall surface of the other end of the sleeve is formed with external screw thread, and pallet is arranged on the other end of the sleeve and is consolidated
Determine nut, the pallet is fixed on the outer surface of concrete by the external screw thread cooperation of the fixture nut and the sleeve；
The other end of the sleeve is additionally provided with injected hole, and multiple through-holes are offered on the side wall of the sleeve, so that
The outside for expanding Grouting Pipe is expelled to by the through-hole of the sleeve lateral wall by the slurry that injected hole enters the sleeve.
Optionally, the quantity of the sleeve notch is 4, and four sleeve notches are uniformly distributed along the circumferential direction of the sleeve.
Optionally, the fixed plate is arranged along the axis perpendicular to the sleeve.
The present invention solves the reparation side that technical problem also adopts the following technical scheme that a kind of tunnel lining concrete defect
Method comprising:
S10, cleaning coring hole: the dust of coring hole inner wall is removed using high pressure gas；
S20, installation expansion Grouting Pipe and exhaust pipe: expansion Grouting Pipe is inserted into coring hole 20cm or more, and will expansion
Grouting Pipe is fixed；
S30, production packing material, wherein the packing material is epoxide-resin glue, acrylic resin or polyurethane spray
Hard bubble glue is applied, the polyurethane coating hard bubble glue includes the first polyurethane coating hard bubble glue and the second polyurethane coating hard bubble glue；
S40, the filling packing material: epoxide-resin glue or acrylic resin are injected by coring hole using slip casting machine；Or
Person is using the first polyurethane coating hard bubble glue and the second polyurethane coating hard bubble produced in two-component Pneumatic glue gun spraying S30
Polyurethane foaming body is packed into coring hole by glue spraying hole by glue；When exhaust pipe flows outwardly packing material, exhaust pipe is closed
Pressure maintaining 0.2MPa closes slip casting machine, or stops injection polyurethane foaming body；
S50, it smears fire-retardant decorative material: after glue spraying, the exhaust exposed outside polyurethane foaming body is cut off with angle grinder
Pipe and expansion Grouting Pipe, smear the fire-retardant decorative material of 1-2mm on the surface of polyurethane foaming body.
Optionally, wherein the first polyurethane coating hard bubble glue includes the MDI polymer of 80-95% parts by weight, and
The isocyanate-monomer of 5-20% parts by weight.
Optionally, the second polyurethane coating hard bubble glue includes the binary polyether polyol of 40-55% parts by weight； 20-
The ternary polyether polyol of 27% parts by weight；The glycol chain extender of 5-8% parts by weight；The diamine of 2-5% parts by weight is crosslinked
Agent；The coupling agent of 0.5-1% parts by weight；The catalyst of 0.2-0.5% parts by weight；The foam stabiliser of 1-2% parts by weight；10-
The fire retardant of 15% parts by weight；The mill base of 3-5% parts by weight；And the water of 0.2-0.5% parts by weight.
Optionally, S30 includes: that MDI polymer is added in reaction kettle, and isocyanate-monomer is added under stirring,
Under nitrogen charging hermetic seal, stirring 5-10min is completed, and dispenses nitrogen charging hermetic seal.
Optionally, S30 includes:
(1) binary polyether polyol in proportion, ternary polyether polyol, glycol chain extender and binary are added in reaction kettle
Amine crosslinker is warming up to 100-120 DEG C, is dehydrated 1-2h under high vacuum, until moisture content is lower than 0.05%, is then cooled to 30-
40℃；
(2) fire retardant, mill base is sequentially added under 600 turns/min of mixture low whipping speed in (1), water and foam are stablized
It is uniform to color to continue stirring 15-20min for agent；
(3) mixing speed in (2) is reduced by 300 turns/min, sequentially adds coupling agent, catalyst continues to stir 5-
10min is stirred evenly, that is, completes the second polyurethane coating hard bubble glue production sealed packaging.
The invention has the following beneficial effects: compared with the prior art, tunnel lining concrete defect of the invention is repaired
Compound method has the advantage that
(1) present invention realizes the repairing in coring hole using expansion Grouting Pipe, and the expansion Grouting Pipe is with slip casting and admittedly
The integration effect for determining baffle, it is fixed to solve the problems, such as that previous baffle is difficult to.The i.e. described expansion Grouting Pipe both has expansion solid
It being set for expansion Grouting Pipe is played the role of again, this method greatlys save time and manpower and material resources compared to traditional branch support frame,
There is no any destruction to two lining surfaces simultaneously.
(2) polymer mortar and epoxy resin mortar are replaced using high-strength polyurethane spraying hard bubble body, has bulk density low, knot
It is good with joint efforts.The danger of chip off-falling caused by material itself bulk density reason is reduced, while the present invention is further through preparatory anchoring expansion folder spiral shell
Pin device makes the expansion of polyurethane coating hard bubble body and implantation press from both sides to form one, forms Double-protection.
(3) the inorganic mortar protection cover of high bonding is smeared on polyurethane coating hard bubble body surface of the invention, more enough effective
Protect the danger of the polyurethane coating hard bubble body contact net flare of organic system.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of expansion Grouting Pipe of the invention；
Fig. 2 is the use state diagram of expansion Grouting Pipe of the invention；
The mark in the figure shows: 1- sleeve；2- fixed plate；3- expands conehead；4- expansion rod；5- expansion bolt；6- pallet；
7- fixture nut；8- injected hole；9- exhaust pipe.
Specific embodiment
Technical solution of the present invention is further elaborated below with reference to examples and drawings.
Embodiment 1
A kind of expansion Grouting Pipe is provided in the present embodiment comprising sleeve, fixed plate, expansion conehead, expansion rod, expanding screw
Bolt, pallet and fixture nut；
One end of the sleeve offers at least one sleeve notch along its axial direction；In the present embodiment, the sleeve
The quantity of notch is 4, and four sleeve notches are uniformly distributed along the circumferential direction of the sleeve.
Fixed plate is provided on the inner sidewall of the sleeve, it is preferable that the fixed plate is along the axis perpendicular to the sleeve
Line setting, and through-hole is offered in the middle part of the fixed plate.
Radius is gradually reduced the expansion conehead from left to right, and the diameter of the expansion conehead is greater than the interior of the sleeve
Diameter；The lesser one end of the expansion conehead diameter is fixed in one end of the expansion rod, and the other end passes through the fixed plate, is located at
The right part of the fixed plate.
It is formed with external screw thread on the expansion rod, and is arranged with expansion bolt on the expansion rod, the expansion bolt
Cooperate with the external screw thread of the expansion rod, the expansion rod when rotating the expansion bolt, can be pulled to move along a straight line, from
And make the sleeve expansion for having sleeve notch one end, realize the fixation of expansion Grouting Pipe.
Moreover, the outside wall surface of the other end of the sleeve is formed with external screw thread, support is arranged on the other end of the sleeve
The external screw thread of disk and fixture nut, the fixture nut and the sleeve cooperates, and the pallet is fixed on the concrete
On outer surface.
The other end of the sleeve is additionally provided with injected hole, with by injected hole slip casting into the sleeve, also,
Multiple through-holes are offered on the side wall of the sleeve, so that passing through the through-hole by the slurry that injected hole enters the sleeve
It is expelled to the outside of the expansion Grouting Pipe.
Expansion Grouting Pipe when in use, is first put in the position of coring hole 20cm or more, twisted by expansion Grouting Pipe of the invention
Expansion bolt expands the top of sleeve, and sleeve is enable to be firmly secured in coring hole, then installs pallet and gas vent
Pipe, exhaust pipe use the steel pipe or iron pipe of diameter 8mm, to directly carry out slip casting operation, after the completion of slip casting, remove pallet,
Extra exhaust perforated pipe and sleeve are cut off with angle grinder, and thus expansion Grouting Pipe is stayed in coring hole, which thereby enhances coring
When hole is repaired, the intensity of slurry, to improve security performance.
Embodiment 2
Present embodiments provide a kind of restorative procedure of tunnel lining concrete defect, the tunnel lining concrete defect
Including tunnel lining concrete coring hole, the restorative procedure includes:
S10, cleaning coring hole
In the present embodiment, the dust of coring hole inner wall is removed using high pressure gas, to use packing material to the coring hole
When being filled, it can make that there is good binding force between packing material and the inner wall in coring hole.
S20, installation expansion Grouting Pipe and exhaust pipe
The expansion Grouting Pipe can be using expansion Grouting Pipe described in embodiment 1, or other expansion Grouting Pipes.
When installation expands Grouting Pipe, expansion Grouting Pipe is inserted into coring hole 20cm or more first, and slip casting will be expanded
Pipe is fixed.
(caliber can be under conditions of not influencing to be vented and observe stream slurry for the steel pipe or iron pipe that exhaust pipe uses diameter 8mm
Any selection), 3mm × 3mm deep trouth is cut in the top right-angled intersection of exhaust pipe, and exhaust pipe is located at one end and waterproof inside coring hole
Retain pre-determined distance, such as 2cm between plate.
S30, production packing material
In the present embodiment, the packing material is lightweight filler, such as can be epoxide-resin glue, acrylic resin
Deng having high-intensitive organic cementitious material after solidifying；It is highly preferred that the packing material is polyurethane coating hard bubble glue.
In the present embodiment, the polyurethane coating hard bubble glue includes the first polyurethane coating hard bubble glue and the second polyurethane spray
Hard bubble glue is applied, wherein the first polyurethane coating hard bubble glue includes the MDI polymer and 5-20% of 80-95% parts by weight
The isocyanate-monomer of parts by weight；The second polyurethane coating hard bubble glue includes the binary polyether polyols of 40-55% parts by weight
Alcohol (molecular weight 500-800)；The ternary polyether polyol (molecular weight 350-500) of 20-27% parts by weight；5-8% parts by weight
Glycol chain extender；The binary amine crosslinker of 2-5% parts by weight；The coupling agent of 0.5-1% parts by weight；0.2-0.5% parts by weight
Catalyst；The foam stabiliser of 1-2% parts by weight；The fire retardant of 10-15% parts by weight；The mill base of 3-5% parts by weight；0.2-
The water of 0.5% parts by weight.
It is highly preferred that the MDI polymer is poly methylene poly phenyl poly isocyanate PAPI, isocyanate-monomer is liquid
Change MDI, toluene di-isocyanate(TDI) TDI or isophorone diisocyanate value IPDI.
The binary polyether polyol is the polyoxypropyleneglycol PPG of molecular weight 500-800, and ternary polyether polyol is
The polypropylene oxide triol of molecular weight 350-500.Glycol chain extender can be ethylene glycol, diglycol, Isosorbide-5-Nitrae fourth two
Alcohol, 1,6 hexylene glycol etc..Binary amine crosslinker can be 3,3 ' two chloro- 4,4 '-diphenylmethanediamiands (MOCA), 3,5 '-two
(methylthiomethyl) diamines (E-300) or 3,5- diethyl toluene diamine (Ethacure100) etc..Coupling agent can be for containing amino
Silane coupling agent, the silane coupling agent etc. containing epoxy group.Catalyst can be organic tin catalyst such as two fourth of tin dilaurate
Ji Xi, stannous octoate, dibutyltin diacetate etc. or be tertiary amine catalyst such as triethylenediamine, dimethyl cyclohexyl amine etc..
Foam stabiliser is organic silicon modified by polyether class surfactant.Fire retardant is polyalcohol containing halogenated aliphatic.
First polyurethane coating hard bubble glue and the second polyurethane coating hard bubble glue of the invention has following technical effect that
(1) curing rate is fast, when saving maintainer.(2) 800-300kg/ cubes of material low bulk density only mortar 1/5-1/4.(3) with
The binding force intensity of concrete.(4) compression strength is up to the same strength grade of lining concrete.(5) full closed pore structurally waterproof
Performance is good.(6) good flame resistance.
The production technology of the first polyurethane coating hard bubble glue: MDI polymer is added in reaction kettle, under stirring
Isocyanate-monomer is added, under nitrogen charging hermetic seal, stirring 5-10min is completed, and dispenses nitrogen charging hermetic seal.
The production technology of the second polyurethane coating hard bubble glue:
(1) binary polyether polyol in proportion, ternary polyether polyol, glycol chain extender and binary are added in reaction kettle
Amine crosslinker is warming up to 100-120 DEG C, is dehydrated 1-2h under high vacuum, until moisture content is lower than 0.05%, is then cooled to 30-
40℃。
(2) fire retardant, mill base is sequentially added under 600 turns/min of mixture low whipping speed in (1), water and foam are stablized
It is uniform to color to continue stirring 15-20min for agent.
(3) mixing speed in (2) is reduced by 300 turns/min, sequentially adds coupling agent, catalyst continues to stir 5-
10min is stirred evenly, that is, completes the second polyurethane coating hard bubble glue production sealed packaging.
S40, the filling packing material
In the present embodiment, when the packing material is epoxide-resin glue, acrylic resin etc. has high-intensitive after solidifying
When organic cementitious material, slip casting machine or grouting equipment can be used by above-mentioned packing material and inject coring hole, to coagulation
Native defect is repaired；When exhaust pipe flows outwardly packing material, exhaust pipe pressure maintaining 0.2MPa is closed, slip casting machine is then shut off
Or Grouting Pipe, i.e., it is almost the same and have sufficiently to concrete substrate filling material density to be able to maintain by pressure control function
Wellability, can increase the binding force of packing material and concrete, and dwell pressure is different according to different materials.
When the packing material is polyurethane coating hard bubble glue:
Using the first polyurethane coating hard bubble glue and the second polyurethane coating produced in two-component Pneumatic glue gun spraying S30
Hard bubble glue, wherein two packing elements of the two-component Pneumatic glue gun are respectively charged into the first polyurethane coating hard bubble glue and second and gather
Urethane spray hard bubble glue, and external 0.6/8 air pump to provide gas source, the external static mixing tube of packing element upper end can be sprayed
It applies, and makes polyurethane foaming body.
In the present embodiment, by expanding the injected hole of Grouting Pipe for above-mentioned first polyurethane coating hard bubble glue and the second poly- ammonia
Ester sprays hard bubble glue and sprays into coring hole, and when coring hole is filled up by polyurethane foaming body, i.e., exhaust pipe flows outwardly polyurethane
When foaming body, exhaust pipe pressure maintaining 0.2MPa is closed, is stopped to coring hole filled polyurethane foaming body, at this point, stifled by conical plug
Firmly exhaust pipe.
It can also be constructed according to the actual situation using two-component slip casting machine or high pressure dual-component polyurethane flush coater simultaneously.
It is sprayed when mixing the first polyurethane coating hard bubble glue and the second polyurethane coating hard bubble glue according to the volume ratio of 1:1
Afterwards, the material property of the polyurethane foaming body obtained is as follows:
S50, fire-retardant decorative material is smeared
After glue spraying finishes 30min, i.e., after glue is fully cured, i.e., the baffle of dismountable expansion Grouting Pipe is cut off with angle grinder
Extra exhaust pipe and expansion Grouting Pipe (that is, exposing the exhaust pipe and expansion Grouting Pipe outside polyurethane foaming body), surface is smeared
The fire-retardant decorative material of 1-2mm, such as polymer mortar cover, or water-base epoxy mortar.
The finish coat mortar material performance requirement:
There are following technical effects for the restorative procedure of tunnel lining concrete defect of the invention:
(1) present invention realizes the repairing in coring hole using expansion Grouting Pipe, and the expansion Grouting Pipe is with slip casting and admittedly
The integration effect for determining baffle, it is fixed to solve the problems, such as that previous baffle is difficult to.The i.e. described expansion Grouting Pipe both has expansion solid
It being set for expansion Grouting Pipe is played the role of again, this method greatlys save time and manpower and material resources compared to traditional branch support frame,
There is no any destruction to two lining surfaces simultaneously.
(2) polymer mortar and epoxy resin mortar are replaced using high-strength polyurethane spraying hard bubble body, has bulk density low, knot
It is good with joint efforts.The danger of chip off-falling caused by material itself bulk density reason is reduced, while the present invention is further through preparatory anchoring expansion folder spiral shell
Pin device makes the expansion of polyurethane coating hard bubble body and implantation press from both sides to form one, forms Double-protection.
(3) the inorganic mortar protection cover of high bonding is smeared on polyurethane coating hard bubble body surface of the invention, more enough effective
Protect the danger of the polyurethane coating hard bubble body contact net flare of organic system.
Embodiment 3
Present embodiments provide a kind of restorative procedure of tunnel lining concrete defect, the tunnel lining concrete defect
Including tunnel lining concrete coring hole, the restorative procedure of the restorative procedure and embodiment 2 is that the first polyurethane coating is hard
The component and content for steeping glue and the second polyurethane coating hard bubble glue are different, specifically, in the present embodiment, first polyurethane
Spraying hard bubble glue includes the PM200 of the 100 mass parts and MDI50 of 20 parts by weight；The second polyurethane coating hard bubble Jiao Bao
Include each component of following parts by weight: DL1000:42.3；YRLK-100:21.15；E-100:4.1；Diethylene glycol: 7.3；It is fire-retardant
Agent DOher6209:14.1；Foam stabilizer SD641:0.85；KH560:0.85；T12:0.85；Water: 0.35；And grey mill base:
8.4。
Operable time, expansion ratio are detected by JC/T2041-2010 " polyurethane grouting material ", and foaming volume density is pressed
GB/T6343 " foamed plastics and the measurement of rubber-apparent density " detection, compression strength by JC/T1041, " use by distress in concrete
Epoxy grouting material " detection, adhesive strength by GB/T16777.7A method " building water-proof paint experimental method ", press by combustibility
GB8624-1997 " Classification on burning behaviour for building materials " testing result is as follows:
| Serial number | Project | Detected value |
| 1 | Operable time | 25s(22g@20℃) |
| 2 | Expansion ratio | 100% |
| 3 | Foam volume density | 500kg/ cubes |
| 4 | Compression strength | 9MPa |
| 5 | Adhesive strength | 3.3Mpa |
| 6 | It is flammable | Fire-protection rating B1 |
Embodiment 4
Present embodiments provide a kind of restorative procedure of tunnel lining concrete defect, the tunnel lining concrete defect
Including tunnel lining concrete coring hole, the restorative procedure of the restorative procedure and embodiment 2 is that the first polyurethane coating is hard
The component and content for steeping glue and the second polyurethane coating hard bubble glue are different, specifically, in the present embodiment, first polyurethane
Spraying hard bubble glue includes the PM200 of the 100 mass parts and MDI50 of 20 parts by weight；The second polyurethane coating hard bubble Jiao Bao
Include each component of following parts by weight: DL1000:42.3；YRLK-100:21.15；E-100:4.1；BDO:6.2；Fire retardant
DOher6209:14.1；Foam stabilizer SD641:0.85；KH560:0.85；T12:0.85；Water: 0.35；And grey mill base: 8.4.
Operable time, expansion ratio are detected by JC/T2041-2010 " polyurethane grouting material ", and foaming volume density is pressed
GB/T6343 " foamed plastics and the measurement of rubber-apparent density " detection, compression strength by JC/T1041, " use by distress in concrete
Epoxy grouting material " detection, adhesive strength by GB/T16777.7A method " building water-proof paint experimental method ", press by combustibility
GB8624-1997 " Classification on burning behaviour for building materials " testing result is as follows:
| Serial number | Project | Detected value |
| 1 | Operable time | 23s(22g@20℃) |
| 2 | Expansion ratio | 60% |
| 3 | Foam volume density | 700kg/ cubes |
| 4 | Compression strength | 12MPa |
| 5 | Adhesive strength | 3.5Mpa |
| 6 | It is flammable | Fire-protection rating B1 |
Embodiment 5
Present embodiments provide a kind of restorative procedure of tunnel lining concrete defect, the tunnel lining concrete defect
Including tunnel lining concrete coring hole, the restorative procedure of the restorative procedure and embodiment 2 is that the first polyurethane coating is hard
The component and content for steeping glue and the second polyurethane coating hard bubble glue are different, specifically, in the present embodiment, first polyurethane
Spraying hard bubble glue includes the PM200 of the 100 mass parts and MDI50 of 20 parts by weight；The second polyurethane coating hard bubble Jiao Bao
Include each component of following parts by weight: DL1000:42.3；YRLK-100:21.15；E-300:5.0；BDO:6.2；Fire retardant
DOher 6209:14.1；Foam stabilizer SD641:0.85；KH560:0.85；T12:0.85；Water: 0.35；And grey mill base: 8.4.
Operable time, expansion ratio are detected by JC/T2041-2010 " polyurethane grouting material ", and foaming volume density is pressed
GB/T6343 " foamed plastics and the measurement of rubber-apparent density " detection, compression strength by JC/T1041, " use by distress in concrete
Epoxy grouting material " detection, adhesive strength by GB/T16777.7A method " building water-proof paint experimental method ", press by combustibility
GB8624-1997 " Classification on burning behaviour for building materials " testing result is as follows:
| Serial number | Project | Detected value |
| 1 | Operable time | 95s(22g@20℃) |
| 2 | Expansion ratio | 50% |
| 3 | Foam volume density | 750kg/ cubes |
| 4 | Compression strength | 15MPa |
| 5 | Adhesive strength | 3.5Mpa |
| 6 | It is flammable | Fire-protection rating B1 |
The sequencing of above embodiments is not only for ease of description, represent the advantages or disadvantages of the embodiments.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (8)
1. a kind of expansion Grouting Pipe, which is characterized in that including sleeve, fixed plate, expansion conehead, expansion rod, expansion bolt, pallet
And fixture nut；
One end of the sleeve offers at least one sleeve notch along its axial direction；
It is provided with fixed plate on the inner sidewall of the sleeve, offers through-hole in the middle part of the fixed plate；
Radius is gradually reduced the expansion conehead from left to right, and the diameter of the expansion conehead is greater than the internal diameter of the sleeve；Institute
The lesser one end of the expansion conehead diameter is fixed in the one end for stating expansion rod, and the other end passes through the fixed plate, is located at described
The right part of fixed plate；
It is formed with external screw thread on the expansion rod, and is arranged with expansion bolt on the expansion rod, the expansion bolt and institute
State the external screw thread cooperation of expansion rod；
The outside wall surface of the other end of the sleeve is formed with external screw thread, and pallet and fixed spiral shell are arranged on the other end of the sleeve
The external screw thread of mother, the fixture nut and the sleeve cooperates, and the pallet is fixed on the outer surface of concrete；
The other end of the sleeve is additionally provided with injected hole, and multiple through-holes are offered on the side wall of the sleeve, so that passing through
The slurry that injected hole enters the sleeve is expelled to the outside of the expansion Grouting Pipe by the through-hole of the sleeve lateral wall.
2. expansion Grouting Pipe according to claim 1, which is characterized in that the quantity of the sleeve notch is 4, four sets
Cylinder notch is uniformly distributed along the circumferential direction of the sleeve.
3. expansion Grouting Pipe according to claim 1, which is characterized in that the fixed plate is along the axis perpendicular to the sleeve
Line setting.
4. a kind of restorative procedure of tunnel lining concrete defect characterized by comprising
S10, cleaning coring hole: the dust of coring hole inner wall is removed using high pressure gas；
S20, installation expansion Grouting Pipe and exhaust pipe: expansion Grouting Pipe is inserted into coring hole 20cm or more, and slip casting will be expanded
Pipe is fixed；
S30, production packing material, wherein the packing material is that epoxide-resin glue, acrylic resin or polyurethane coating are hard
Glue is steeped, the polyurethane coating hard bubble glue includes the first polyurethane coating hard bubble glue and the second polyurethane coating hard bubble glue；
S40, the filling packing material: epoxide-resin glue or acrylic resin are injected by coring hole using slip casting machine；Or it adopts
With the first polyurethane coating hard bubble glue and the second polyurethane coating hard bubble glue produced in two-component Pneumatic glue gun spraying S30, lead to
It crosses glue spraying hole and polyurethane foaming body is packed into coring hole；When exhaust pipe flows outwardly packing material, exhaust pipe pressure maintaining is closed
0.2MPa closes slip casting machine, or stops injection polyurethane foaming body；
S50, smear fire-retardant decorative material: after glue spraying, with angle grinder cut off expose polyurethane foaming body outside exhaust pipe and
Grouting Pipe is expanded, smears the fire-retardant decorative material of 1-2mm on the surface of polyurethane foaming body.
5. the restorative procedure of tunnel lining concrete defect according to claim 4, which is characterized in that wherein, described
One polyurethane coating hard bubble glue includes the MDI polymer of 80-95% parts by weight and the isocyanates list of 5-20% parts by weight
Body.
6. the restorative procedure of tunnel lining concrete defect according to claim 5, which is characterized in that the second poly- ammonia
Ester spraying hard bubble glue includes the binary polyether polyol of 40-55% parts by weight；The ternary polyether polyol of 20-27% parts by weight；
The glycol chain extender of 5-8% parts by weight；The binary amine crosslinker of 2-5% parts by weight；The coupling agent of 0.5-1% parts by weight；
The catalyst of 0.2-0.5% parts by weight；The foam stabiliser of 1-2% parts by weight；The fire retardant of 10-15% parts by weight；3-5% weight
Measure the mill base of part；And the water of 0.2-0.5% parts by weight.
7. the restorative procedure of tunnel lining concrete defect according to claim 6, which is characterized in that S30 includes: anti-
It answers kettle that MDI polymer is added, isocyanate-monomer is added under stirring, under nitrogen charging hermetic seal, stirring 5-10min is complete
At packing nitrogen charging hermetic seal.
8. the restorative procedure of tunnel lining concrete defect according to claim 7, which is characterized in that S30 includes:
(1) binary polyether polyol in proportion, ternary polyether polyol are added in reaction kettle, glycol chain extender and diamine are handed over
Join agent, be warming up to 100-120 DEG C, be dehydrated 1-2h under high vacuum, until moisture content is lower than 0.05%, is then cooled to 30-40 DEG C；
(2) sequentially adding fire retardant, mill base, water and foam stabiliser under 600 turns/min of mixture low whipping speed in (1),
It is uniform to color to continue stirring 15-20min；
(3) mixing speed in (2) being reduced by 300 turns/min, sequentially adds coupling agent, catalyst continues to stir 5-10min,
It stirs evenly, that is, completes the second polyurethane coating hard bubble glue production sealed packaging.
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| CN201811250022.8A CN109505556B (en) | 2018-10-25 | 2018-10-25 | Method for repairing defects of expansion grouting pipe and tunnel lining concrete |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112031821A (en) * | 2020-08-04 | 2020-12-04 | 北京鸿锐嘉科技发展有限公司 | Reinforcing protection treatment method for tunnel lining defects |
| CN113565465A (en) * | 2021-07-19 | 2021-10-29 | 中铁十九局集团第六工程有限公司 | Filling and pouring device for lining coring hole and construction method thereof |
| CN113773635A (en) * | 2021-07-16 | 2021-12-10 | 国网电子商务有限公司 | Pipe orifice sealing material and preparation method and sealing method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005073510A1 (en) * | 2004-01-28 | 2005-08-11 | Denki Kagaku Kogyo Kabushiki Kaisha | Expandable injection bolt and grouting method using same |
| CN201561016U (en) * | 2009-11-16 | 2010-08-25 | 屠工远 | Multifunctional draw-in adjustable setscrew |
| CN201763348U (en) * | 2010-09-17 | 2011-03-16 | 中铁十九局集团轨道交通工程有限公司 | Grouting pipe |
| CN103254880A (en) * | 2013-03-07 | 2013-08-21 | 河南煤业化工集团研究院有限责任公司 | Gas-extraction hole-sealing material |
| CN204898668U (en) * | 2015-08-07 | 2015-12-23 | 重庆工程职业技术学院 | Totally closed anchor section anchor that extends greatly |
| CN106498929A (en) * | 2016-12-05 | 2017-03-15 | 北京鸿锐嘉科技发展有限公司 | Grouting Pipe and reinforcement of concrete defect method |
| CN107130988A (en) * | 2017-07-10 | 2017-09-05 | 中南大学 | A kind of anti-reflection slip casting Composite Bolt of liquid carbon dioxide explosion |
| CN108222539A (en) * | 2018-01-12 | 2018-06-29 | 江苏筑镹营造科技有限公司 | The method of masonry component bolt anchorage |
-
2018
- 2018-10-25 CN CN201811250022.8A patent/CN109505556B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005073510A1 (en) * | 2004-01-28 | 2005-08-11 | Denki Kagaku Kogyo Kabushiki Kaisha | Expandable injection bolt and grouting method using same |
| CN201561016U (en) * | 2009-11-16 | 2010-08-25 | 屠工远 | Multifunctional draw-in adjustable setscrew |
| CN201763348U (en) * | 2010-09-17 | 2011-03-16 | 中铁十九局集团轨道交通工程有限公司 | Grouting pipe |
| CN103254880A (en) * | 2013-03-07 | 2013-08-21 | 河南煤业化工集团研究院有限责任公司 | Gas-extraction hole-sealing material |
| CN204898668U (en) * | 2015-08-07 | 2015-12-23 | 重庆工程职业技术学院 | Totally closed anchor section anchor that extends greatly |
| CN106498929A (en) * | 2016-12-05 | 2017-03-15 | 北京鸿锐嘉科技发展有限公司 | Grouting Pipe and reinforcement of concrete defect method |
| CN107130988A (en) * | 2017-07-10 | 2017-09-05 | 中南大学 | A kind of anti-reflection slip casting Composite Bolt of liquid carbon dioxide explosion |
| CN108222539A (en) * | 2018-01-12 | 2018-06-29 | 江苏筑镹营造科技有限公司 | The method of masonry component bolt anchorage |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112031821A (en) * | 2020-08-04 | 2020-12-04 | 北京鸿锐嘉科技发展有限公司 | Reinforcing protection treatment method for tunnel lining defects |
| CN113773635A (en) * | 2021-07-16 | 2021-12-10 | 国网电子商务有限公司 | Pipe orifice sealing material and preparation method and sealing method thereof |
| CN113565465A (en) * | 2021-07-19 | 2021-10-29 | 中铁十九局集团第六工程有限公司 | Filling and pouring device for lining coring hole and construction method thereof |
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