CN107201753B - It is a kind of for basement or the high-pressure slip-casting blocking method of top plate of underground parking garage - Google Patents
It is a kind of for basement or the high-pressure slip-casting blocking method of top plate of underground parking garage Download PDFInfo
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- CN107201753B CN107201753B CN201710457743.5A CN201710457743A CN107201753B CN 107201753 B CN107201753 B CN 107201753B CN 201710457743 A CN201710457743 A CN 201710457743A CN 107201753 B CN107201753 B CN 107201753B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F120/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
- C08F120/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F120/52—Amides or imides
- C08F120/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F120/56—Acrylamide; Methacrylamide
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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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
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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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
- C09J175/08—Polyurethanes from polyethers
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Abstract
This application provides a kind of for basement or the high-pressure slip-casting blocking method of top plate of underground parking garage, the very strong complementarity in terms of key performance between polyurethane modified epoxy resin class injection slurry and acrylic amide injection slurry is utilized, leakage is slightly mended using polyurethane modified epoxy resin class injection slurry, leakage is mended using acrylic amide injection slurry essence on this basis, to have complementary advantages, combination among the strong ones, and it maximizes favourable factors and minimizes unfavourable ones, realize the quick grouting for water plugging of basement or top plate of underground parking garage, improve leak stopping quality, improve the persistence of leak stopping, and do not destroy the original structure and function of building, meet architectural development needs at this stage.
Description
Technical field
The present invention relates to technical field of building construction, more particularly, to a kind of for basement or the height of top plate of underground parking garage
Pressure grouting blocking method.
Background technique
Residential building basement roof percolating water phenomenon, reduces the service life of building, can also drastically influence underground
The normal use situation of room.Patent CN 105369833A is related to a kind of basement roof leakage slip casting maintenance engineering method, but using biography
Slip casting method of uniting carries out leak stopping, is limited by grouting equipment performance, grouting pressure 0.3Mpa.Water Seepage in Basement generally has centainly
Pressure, especially basement roof bright water leakage, plugging material can not be perfused under artesian pressure in crack at all.Herein
Under pressure, even if liquid be perfused is oily material, such as polyurethane or epoxy resin, entire basement may not be filled
Crack, long-time service will cause secondary leak.
Top plate of underground parking garage is difficult to find leakage source since its construction is special；Once leaking, must be infused using back side
Starch leaking stoppage repairing method.
At present frequently with grouting for water plugging restorative procedure be epoxy resin and polyurethane foam grouting for water plugging, epoxy resin is more
For the structural strengthening of building, and polyurethane foam slip casting is chiefly used in the leak stopping processing of building.
Though polyurethane foam grouting for water plugging material has instant expansion water-stop feature in construction, there is also foaming bodies itself
There may be gaps, and the shortcomings that day after-contraction, often occur as soon as the shortcomings that leaking again after construction 3 months, can not be complete
Complete solution is determined the leakage problems of top plate of underground parking garage.
Polyurethane modified epoxy resin class injection slurry is a kind of novel adhesive, combines polyurethane resin and epoxy resin
The advantages of: compression strength is up to 50MPa or more after solidification, and has certain elasticity；But slurries initial viscosity is big, infiltration coefficient
It is small, it is difficult to be injected in very deep crack simultaneously.
And acrylic amide injection slurry gel time is short, slurries initial viscosity is low, can penetrate into concrete micro-cracks or hole
In gap, gel very big telescopic resilience is waterproof after injection, but needs to do anti-chap processing after grout cures, and compression strength is low.
Therefore, how to realize the quick grouting for water plugging of basement or top plate of underground parking garage, improve leak stopping quality, improve leak stopping
Persistence, and do not destroy the original structure and function of building, need to be current ability with the architectural development for meeting at this stage
The technical issues of field technique personnel's urgent need to resolve.
Summary of the invention
The object of the present invention is to provide a kind of for basement or the high-pressure slip-casting blocking method of top plate of underground parking garage, the height
Pressure grouting blocking method can be realized the quick grouting for water plugging of basement or top plate of underground parking garage, improve leak stopping quality, improve stifled
The persistence of leakage, and the original structure and function of building are not destroyed, meet architectural development needs at this stage.
In order to solve the above technical problems, technical solution provided by the invention are as follows:
It is a kind of for basement or the high-pressure slip-casting blocking method of top plate of underground parking garage, comprising the following steps:
1) positioning leaks crack first, determines position and its length in crack, then cleans crack and its peripheral region, so
Crack is sealed with leak stopping spirit afterwards；
2) according to the concrete structure thickness at crack, injected hole is being drilled at the 0-50mm of crack, and in injected hole
In bury Water slop injector, injected hole cloth hole use the junction of the edges of two sheets of paper or inclined hole form, slip casting hole depth according to concrete thickness determine, pitch-row
It is determined by on-site actual situations；
3) polyurethane modified epoxy resin class injection slurry is injected into the Water slop injector in step 2) with high-pressure slip-casting equipment,
When grouting pressure is higher than 30MPa, stop slip casting；
Etc. 4) after the polyurethane modified epoxy resin class injection slurry solidification at crack openings, original Water slop injector is removed, and
Continue the 5cm~10cm that drills on the basis of former injected hole, and buries new Water slop injector；
5) acrylic amide injection slurry is injected into the new Water slop injector in step 4) with high-pressure slip-casting equipment, until note
Slurry pressure reach 100MPa or more or acrylic amide injection slurry from close on from Water slop injector or crack leak until；
6) after acrylic amide slip casting liquid grout, observation plugging effect overnight, if third should be continued there are also leaking
Acrylamide injection slurry grouting operation, until breakthrough does not leak；
7) after success leak stopping, Water slop injector is removed, and closes injected hole with leak stopping spirit and entirely leaks crack.
Preferably, the polyurethane modified epoxy resin class injection slurry is dual-component polyurethane modified epoxy class gluing
Agent, wherein component A is amino-terminated polyurethane elastomeric prepolymer body, and component B is bisphenol A type epoxy resin.
Preferably, the amino-terminated polyurethane elastomeric prepolymer body is proportionally mixed by isocyanates with polyol
It closes, is synthesized under argon atmosphere protection and chlorobenzoyl chloride catalytic action, then proportionally react, obtain with common aromatic amine
Amino-terminated polyurethane elastomeric prepolymer body.
Preferably, the isocyanates is toluene di-isocyanate(TDI), and the polyol is polyether polyol, described
Common aromatic amine is m-xylene diamine；
The amino-terminated polyurethane elastomeric prepolymer body is mixed by toluene di-isocyanate(TDI) and polyether polyol according to molar ratio 4:1
It closes, is synthesized under argon atmosphere protection and chlorobenzoyl chloride catalytic action, then with m-xylene diamine according to toluene di-isocyanate(TDI):
Polyether polyol: the molar ratio that m-xylene diamine is 4:1:2 reacts, and obtains amino-terminated polyurethane elastomeric prepolymer body.
Preferably, the acrylic amide injection slurry is two-component water soluble acrylamido gelling agent, and wherein component A is third
Acrylamide solution, mass concentration are 5%~20%, and B component is acrylamide polymerization initiator and the aqueous solution for polymerizeing adjuvant.
Preferably, the component A is made of the raw material of following weight percent: 5%~20% acrylamide, 1%
Disodium hydrogen phosphate, 0.5%~2% triethylene tetramine and the water of surplus.
Preferably, the B component is made of the raw material of following weight percent: 2%~8% ammonium persulfate, 1%~
The water of 3% sodium sulfite, 1%~5% sodium chlorate and surplus.
Preferably, the high-pressure slip-casting equipment is plunger pump, and highest outlet pressure is 150MPa.
The application has beneficial technical effect below:
(1) the method for the present invention carries out basement or the leakage with pressure of top plate of underground parking garage is repaired, and does not cut the earth, does not demolish walls, nothing
Building original structure need to be destroyed, can be constructed with water, short construction period while remediation efficiency is greatly improved, ensure that leak stopping
The structure safety of building after reparation.
(2) polyurethane modified epoxy resin class injection slurry of the present invention can form the elastomer with reticular structure, Gu
After being melted into film, it is firmly combined with concrete, the leakage of acrylic amide injection slurry under the conditions of high-pressure slip-casting can be prevented, influence leak stopping
Effect.
(3) cost performance height, A, the B component initial viscosity of acrylic amide injection slurry of the present invention are small, slip casting gel
Imporosity, elongation is good, does not crack for a long time, and can polymerize under conditions of construction temperature minimum zero degrees celsius, acrylamide
The content of the polymerization initiator and polymerization adjuvant in B component in class injection slurry is adjustable, guarantees A, B component in any construction temperature
Simultaneously gel time was maintained in 1~5 minute the lower generation polymerization of degree.
(4) two-component water soluble acrylamido's gelling agent property prepared by the present invention is stablized, and Storage period is long, uses letter
It is single, it is very big to ensure that construction safety.
(5) slip casting pump pressure of the present invention is high, can guarantee that acrylic amide injection slurry is sufficient filling with basement or ground
Lower garage foig forms T-shaped repairing, fully ensures that the long-term effect of pressurization sealing.
Specific embodiment
For a further understanding of the present invention, the preferred embodiment of the invention is described below with reference to embodiment, still
It should be appreciated that these descriptions only further illustrate feature and advantage of the invention, rather than to the limit of the claims in the present invention
System.
This application provides a kind of for basement or the high-pressure slip-casting blocking method of top plate of underground parking garage, including following step
It is rapid:
1) positioning leaks crack first, determines position and its length in crack, then cleans crack and its peripheral region, so
Crack is sealed with leak stopping spirit afterwards；
2) according to the concrete structure thickness at crack, injected hole is being drilled at the 0-50mm of crack, and in injected hole
In bury Water slop injector, injected hole cloth hole use the junction of the edges of two sheets of paper or inclined hole form, slip casting hole depth according to concrete thickness determine, pitch-row
It is determined by on-site actual situations；
3) polyurethane modified epoxy resin class injection slurry is injected into the Water slop injector in step 2) with high-pressure slip-casting equipment,
When grouting pressure is higher than 30MPa, stop slip casting；
Etc. 4) after the polyurethane modified epoxy resin class injection slurry solidification at crack openings, original Water slop injector is removed, and
Continue the 5cm~10cm that drills on the basis of former injected hole, and buries new Water slop injector；
5) acrylic amide injection slurry is injected into the new Water slop injector in step 4) with high-pressure slip-casting equipment, until note
Slurry pressure reach 100MPa or more or acrylic amide injection slurry from close on from Water slop injector or crack leak until；
6) after acrylic amide slip casting liquid grout, observation plugging effect overnight, if third should be continued there are also leaking
Acrylamide injection slurry grouting operation, until breakthrough does not leak；
7) after success leak stopping, Water slop injector is removed, and closes injected hole with leak stopping spirit and entirely leaks crack.
In one embodiment of the application, the polyurethane modified epoxy resin class injection slurry changes for dual-component polyurethane
Property epoxy resin adhesive, wherein component A be amino-terminated polyurethane elastomeric prepolymer body, component B be bisphenol type epoxy tree
Rouge.
In one embodiment of the application, the amino-terminated polyurethane elastomeric prepolymer body by isocyanates with it is polyhydroxylated
It closes object proportionally to mix, synthesizes under argon atmosphere protection and chlorobenzoyl chloride catalytic action, then pressed with common aromatic amine
It is reacted according to ratio, obtains amino-terminated polyurethane elastomeric prepolymer body.
In one embodiment of the application, the isocyanates is toluene di-isocyanate(TDI), the polyol
For polyether polyol, the common aromatic amine is m-xylene diamine；
The amino-terminated polyurethane elastomeric prepolymer body is mixed by toluene di-isocyanate(TDI) and polyether polyol according to molar ratio 4:1
It closes, is synthesized under argon atmosphere protection and chlorobenzoyl chloride catalytic action, then with m-xylene diamine according to toluene di-isocyanate(TDI):
Polyether polyol: the molar ratio that m-xylene diamine is 4:1:2 reacts, and obtains amino-terminated polyurethane elastomeric prepolymer body.
In one embodiment of the application, the acrylic amide injection slurry is two-component water soluble acrylamido gel
Agent, wherein component A is acrylamide solution, and mass concentration is 5%~20%, and B component is acrylamide polymerization initiator and gathers
Close the aqueous solution of adjuvant.
In one embodiment of the application, the component A is made of the raw material of following weight percent: 5%~20%
Acrylamide, 1% disodium hydrogen phosphate, 0.5%~2% triethylene tetramine and surplus water.
In one embodiment of the application, the B component is made of the raw material of following weight percent: 2%~8%
Ammonium persulfate, 1%~3% sodium sulfite, 1%~5% sodium chlorate and surplus water.
In one embodiment of the application, the high-pressure slip-casting equipment is plunger pump, and highest outlet pressure is 150MPa.
Leak stopping principle provided by the present application for basement or the high-pressure slip-casting blocking method of top plate of underground parking garage:
Compression strength is up to 50MPa or more after the solidification of polyurethane modified epoxy resin class injection slurry, but its slurries initially glues
Degree is big, and infiltration coefficient is small, is difficult to be injected in very deep very thin crack, and elasticity is moderate；
And compression strength is low after the solidification of acrylic amide injection slurry, and need to do anti-chap processing, but its slurries initial viscosity
Low, infiltration coefficient is big, can penetrate into micro-cracks or hole, and gel time is short, and gel has very big telescopic resilience, after injection
It is waterproof；
As it can be seen that polyurethane modified epoxy resin class injection slurry and acrylic amide injection slurry, compression strength after solidification
Aspect, pre-large post-small, pre-large post-small in terms of initial viscosity, pre-small post-large in terms of infiltration coefficient, elasticity side after solidification
Face, pre-small post-large, the two has very strong complementarity at least in terms of four key performances；
It is moderate up to 50MPa or more, elasticity using compression strength after the solidification of polyurethane modified epoxy resin class injection slurry
Feature allows it as the support frame after fracture plugging grout cures, as the coagulum after the entire grout cures of skeletal support,
It is the same similar to the concrete after the coarse aggregate support solidification in concrete, using at the beginning of polyurethane modified epoxy resin class injection slurry
Beginning viscosity is big, infiltration coefficient is small, is difficult the feature injected in very deep very thin crack, allows big seam in its filling cracks, etc.
Many tiny gaps or cavity are formed after it is solidified, among coagulum, so that big seam in a disguised form is become crack；
Low using acrylic amide injection slurry initial viscosity, infiltration coefficient is big, can penetrate into spy in micro-cracks or hole
Point, many tiny gaps or sky that the coagulum centre after filling up the solidification of polyurethane modified epoxy resin class injection slurry is formed
Hole, and since grouting pressure is in 100MPa or more, the acrylic amide injection slurry for allowing infiltration coefficient big fills up almost institute
Fine gap among coagulum or cavity after the solidification of some polyurethane modified epoxy resin class injection slurries, and due to acryloyl
The injected hole of amine injection slurry be continue on the basis of polyurethane modified epoxy resin class injection slurry injected hole drill 5cm~
10cm, so that the slip casting entrance of acrylic amide injection slurry is solidifying after being opened in the solidification of polyurethane modified epoxy resin class injection slurry
Gu inside object, acrylic amide injection slurry is the center portion from the coagulum after the solidification of polyurethane modified epoxy resin class injection slurry
Around edge spread, after the two all solidifies, obtain be the coagulum of polyurethane modified epoxy resin class injection slurry from the outside
It is wrapped in the coagulum of acrylic amide injection slurry, as the hard plate first of one side protects the inside lower spun gold hapalonychia of intensity,
There is the outer guard of the coagulum of polyurethane modified epoxy resin class injection slurry, is no longer needed to after the solidification of acrylic amide injection slurry
Do anti-chap processing as in traditional handicraft, time saving and energy saving cost-saving, and due to acrylic amide injection slurry have it is very big
Telescopic resilience, the fine gap among coagulum or third in cavity after the solidification of polyurethane modified epoxy resin class injection slurry
After the solidification of acrylamide injection slurry, the coagulum of acrylic amide injection slurry can be largely expanded, by polyurethane modified epoxy tree
Lipid injection slurry solidification after coagulum among many tiny gaps or cavity further turgor and sealing, thus significantly
Improve plugging effect；
Present invention take advantage of that the very strong complementarity in terms of certain key performances between the two, utilization are polyurethane-modified
Epoxy resin injection slurry slightly mends leakage, mends leakage using acrylic amide injection slurry essence on this basis, is changed using polyurethane
Property the big seam of epoxy resin injection slurry leak stopping, on this basis utilize acrylic amide injection slurry leak stopping fine crack, utilize polyurethane
Modified epoxy class injection slurry forms hard support frame, forms skeleton using acrylic amide injection slurry on this basis
In soft filler, using polyurethane modified epoxy resin class injection slurry formed outer guard, on this basis utilize propylene
Amides injection slurry forms the intumescent filler object of inside, thus have complementary advantages, combination among the strong ones, and maximize favourable factors and minimize unfavourable ones, realize underground
The quick grouting for water plugging of room or top plate of underground parking garage, improves leak stopping quality, improves the persistence of leak stopping, and do not destroy building
The original structure and function of object meet architectural development needs at this stage.
There is no limit using in the art to processing equipment unmentioned in the above method and technological parameter by the present invention
Processing equipment and technological parameter known to technical staff.
For a further understanding of the present invention, below with reference to embodiment to provided by the invention a kind of for basement or underground
The high-pressure slip-casting blocking method of shed deckhead is described in detail, and protection scope of the present invention is not limited by the following examples.
Embodiment 1:
Cell top plate of underground parking garage leakage in Weifang is repaired: the following steps are included:
1) positioning leaks crack first, determines position and its length in crack, then cleans crack and its peripheral region, so
Crack is sealed with leak stopping spirit afterwards；
2) according to the concrete structure thickness at crack, injected hole is being drilled at the 10mm of crack, and in injected hole
Embedded Water slop injector, injected hole cloth hole use the junction of the edges of two sheets of paper or inclined hole form, and slip casting hole depth determines that pitch-row is pressed according to concrete thickness
On-site actual situations determine；
3) polyurethane modified epoxy resin class injection slurry is injected into the Water slop injector in step 2) with high-pressure slip-casting equipment,
When grouting pressure is higher than 30MPa, stop slip casting；
The polyurethane modified epoxy resin class injection slurry is dual-component polyurethane modified epoxy class adhesive, wherein
Component A is amino-terminated polyurethane elastomeric prepolymer body, and component B is bisphenol A type epoxy resin；
The amino-terminated polyurethane elastomeric prepolymer body is mixed by toluene di-isocyanate(TDI) and polyether polyol according to molar ratio 4:1
It closes, is synthesized under argon atmosphere protection and chlorobenzoyl chloride catalytic action, then with m-xylene diamine according to toluene di-isocyanate(TDI):
Polyether polyol: the molar ratio that m-xylene diamine is 4:1:2 reacts, and obtains amino-terminated polyurethane elastomeric prepolymer body；
Etc. 4) after the polyurethane modified epoxy resin class injection slurry solidification at crack openings, original Water slop injector is removed, and
Continue the 6cm that drills on the basis of former injected hole, and buries new Water slop injector；
The acrylic amide injection slurry is two-component water soluble acrylamido gelling agent, and wherein component A is acrylamide
Solution, mass concentration 15%, B component are acrylamide polymerization initiator and the aqueous solution for polymerizeing adjuvant；
The component A is made of the raw material of following weight percent: 15% acrylamide, 1% disodium hydrogen phosphate,
1% triethylene tetramine and the water of surplus；
The B component is made of the raw material of following weight percent: 5% ammonium persulfate, 2% sodium sulfite, 3%
The water of sodium chlorate and surplus；
5) acrylic amide injection slurry is injected into the new Water slop injector in step 4) with high-pressure slip-casting equipment, until note
Slurry pressure reach 100MPa or more or acrylic amide injection slurry from close on from Water slop injector or crack leak until；
6) after acrylic amide slip casting liquid grout, observation plugging effect overnight, if third should be continued there are also leaking
Acrylamide injection slurry grouting operation, until breakthrough does not leak；
7) after success leak stopping, Water slop injector is removed, and closes injected hole with leak stopping spirit and entirely leaks crack.
The above description of the embodiment is only used to help understand the method for the present invention and its core ideas.It should be pointed out that pair
For those skilled in the art, without departing from the principle of the present invention, the present invention can also be carried out
Some improvements and modifications, these improvements and modifications also fall within the scope of protection of the claims of the present invention.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
A variety of modifications for these embodiments are it will be apparent that as defined herein one for those skilled in the art
As principle can realize in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention will
It will not be intended to be limited to the embodiments shown herein, and be to fit to consistent with the principles and novel features disclosed herein
Widest range.
Claims (6)
1. a kind of for basement or the high-pressure slip-casting blocking method of top plate of underground parking garage, which comprises the following steps:
1) positioning leaks crack first, determines position and its length in crack, then cleans crack and its peripheral region, then uses
Leak stopping spirit seals crack；
2) according to the concrete structure thickness at crack, injected hole is being drilled at the 0-50mm of crack, and is being buried in injected hole
If Water slop injector, injected hole cloth hole uses the junction of the edges of two sheets of paper or inclined hole form, and slip casting hole depth determines that pitch-row is by existing according to concrete thickness
Field actual conditions determine；
3) polyurethane modified epoxy resin class injection slurry is injected into the Water slop injector in step 2) with high-pressure slip-casting equipment, work as note
When starching pressure higher than 30MPa, stop slip casting；
Etc. 4) after the polyurethane modified epoxy resin class injection slurry solidification at crack openings, original Water slop injector is removed, and in original
Continue the 5cm~10cm that drills on the basis of injected hole, and buries new Water slop injector；
5) acrylic amide injection slurry is injected into the new Water slop injector in step 4) with high-pressure slip-casting equipment, until slip casting pressure
Power reach 100MPa or more or acrylic amide injection slurry from close on from Water slop injector or crack leak until；
6) after acrylic amide slip casting liquid grout, observation plugging effect overnight, if acryloyl should be continued there are also leaking
Amine injection slurry grouting operation, until breakthrough does not leak；
7) after success leak stopping, Water slop injector is removed, and closes injected hole with leak stopping spirit and entirely leaks crack；
The polyurethane modified epoxy resin class injection slurry is dual-component polyurethane modified epoxy class adhesive, wherein first group
Part is amino-terminated polyurethane elastomeric prepolymer body, and component B is bisphenol A type epoxy resin；
The acrylic amide injection slurry is two-component water soluble acrylamido gelling agent, and wherein component A is acrylamide solution,
Mass concentration is 5%~20%, and B component is acrylamide polymerization initiator and the aqueous solution for polymerizeing adjuvant.
2. high-pressure slip-casting blocking method according to claim 1, which is characterized in that the amino-terminated polyurethane elastomeric prepolymer
Body is proportionally mixed by isocyanates with polyol, is closed under argon atmosphere protection and chlorobenzoyl chloride catalytic action
At then proportionally being reacted with common aromatic amine, obtain amino-terminated polyurethane elastomeric prepolymer body.
3. high-pressure slip-casting blocking method according to claim 2, which is characterized in that the isocyanates is toluene diisocyanate
Acid esters, the polyol are polyether polyol, and the common aromatic amine is m-xylene diamine；
The amino-terminated polyurethane elastomeric prepolymer body is mixed with polyether polyol according to molar ratio 4:1 by toluene di-isocyanate(TDI),
It is synthesized under argon atmosphere protection and chlorobenzoyl chloride catalytic action, then with m-xylene diamine according to toluene di-isocyanate(TDI): poly-
Ethoxylated polyhydric alcohol: the molar ratio that m-xylene diamine is 4:1:2 reacts, and obtains amino-terminated polyurethane elastomeric prepolymer body.
4. high-pressure slip-casting blocking method according to claim 1, which is characterized in that the component A is by following weight percent
Several raw materials are made: 5%~20% acrylamide, 1% disodium hydrogen phosphate, 0.5%~2% triethylene tetramine and remaining
The water of amount.
5. high-pressure slip-casting blocking method according to claim 1, which is characterized in that the B component is by following weight percent
Several raw materials are made: 2%~8% ammonium persulfate, 1%~3% sodium sulfite, 1%~5% sodium chlorate and surplus
Water.
6. high-pressure slip-casting blocking method according to claim 1, which is characterized in that the high-pressure slip-casting equipment is plunger
Pump, highest outlet pressure are 150MPa.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710457743.5A CN107201753B (en) | 2017-06-16 | 2017-06-16 | It is a kind of for basement or the high-pressure slip-casting blocking method of top plate of underground parking garage |
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|---|---|---|---|---|
| CN109882203B (en) * | 2019-03-08 | 2021-02-23 | 山东高速集团有限公司 | Combined filling and reinforcing process |
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