CN107201753A - It is a kind of to be used for the high-pressure slip-casting blocking method of basement or top plate of underground parking garage - Google Patents
It is a kind of to be used for the high-pressure slip-casting blocking method of basement or top plate of underground parking garage Download PDFInfo
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- CN107201753A CN107201753A CN201710457743.5A CN201710457743A CN107201753A CN 107201753 A CN107201753 A CN 107201753A CN 201710457743 A CN201710457743 A CN 201710457743A CN 107201753 A CN107201753 A CN 107201753A
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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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- Polyurethanes Or Polyureas (AREA)
Abstract
It is used for the high-pressure slip-casting blocking method of basement or top plate of underground parking garage this application provides a kind of, it make use of the very strong complementarity in terms of key performance between polyurethane modified epoxy resin class injection slurry and acrylic amide injection slurry, seepage is slightly mended using polyurethane modified epoxy resin class injection slurry, on this basis seepage is mended using acrylic amide injection slurry essence, so as to have complementary advantages, combination among the strong ones, and maximize favourable factors and minimize 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, it is used for the height of basement or top plate of underground parking garage more particularly, to a kind of
Pressure grouting blocking method.
Background technology
Residential building basement roof percolating water phenomenon, reduces the service life of building, can also drastically influence underground
The normal service condition of room.The A of patent CN 105369833 are related to a kind of basement roof seepage slip casting maintenance engineering method, but use
Traditional slip casting method carries out leak stopping, is limited by grouting equipment performance, grouting pressure is 0.3Mpa.Water Seepage in Basement typically carries one
The bright water leakage of fixed pressure, especially basement roof, crack can not irrigate loss circulation material at all under artesian pressure.
Under this pressure, even if irrigated liquid is oily material, such as polyurethane or epoxy resin, under may not filling entirely
Room crack, long-term use can cause secondary leak.
Top plate of underground parking garage is special due to its construction, it is difficult to find leakage source；Once generation seepage, must be using back side note
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 used for 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 body in itself
Gap, and the shortcoming of day after-contraction are there may be, the shortcoming of seepage again is often occurred as soon as after constructing 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 new adhesive, combines polyurethane resin and epoxy resin
Advantage：Compression strength is up to more than 50MPa after solidification, and has certain elasticity；But slurries initial viscosity is big, infiltration coefficient
It is small, it is difficult to be injected into 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, the quick grouting for water plugging of basement or top plate of underground parking garage how is realized, leak stopping quality is improved, leak stopping is improved
Persistence, and do not destroy the original structure and function of building, be current ability with the architectural development needs met at this stage
The technical problem of field technique personnel's urgent need to resolve.
The content of the invention
It is used for the high-pressure slip-casting blocking method of basement or top plate of underground parking garage, the height it is an object of the invention to provide a kind of
Pressure grouting blocking method can realize 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.
To solve above-mentioned technical problem, the technical scheme that the present invention is provided is：
It is a kind of to be used for the high-pressure slip-casting blocking method of basement or top plate of underground parking garage, comprise the following steps：
1) seepage crack is positioned first, position and its length in crack is determined, then cleans crack and its peripheral region, so
Afterwards with leak stopping spirit sealing crack；
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 uses the junction of the edges of two sheets of paper or inclined hole form, and slip casting hole depth determines according to concrete thickness, pitch-row
Determined by on-site actual situations；
3) with high-pressure slip-casting equipment to step 2) in Water slop injector in inject polyurethane modified epoxy resin class injection slurry,
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 pulled down, and
Continue the 5cm~10cm that drills, and embedded new Water slop injector on the basis of former injected hole；
5) with high-pressure slip-casting equipment to step 4) in new Water slop injector in inject acrylic amide injection slurry, until note
Slurry pressure reaches more than 100MPa, or acrylic amide injection slurry is from closing at Water slop injector or crack untill seepage；
6) after acrylic amide slip casting liquid grout is finished, observation plugging effect overnight, if also seepage, should proceed third
Acrylamide injection slurry grouting operation, untill seepage does not occur for breakthrough；
7) after success leak stopping, Water slop injector is removed, and injected hole and whole seepage crack are closed with leak stopping spirit.
It is preferred that, the polyurethane modified epoxy resin class injection slurry is dual-component polyurethane modified epoxy class gluing
Agent, wherein first component are amino-terminated polyurethane elastomeric prepolymer body, and second component is bisphenol A type epoxy resin.
It is preferred that, the amino-terminated polyurethane elastomeric prepolymer body is proportionally mixed by isocyanates with polyol
Close, synthesized under argon atmosphere protection and chlorobenzoyl chloride catalytic action, then proportionally react, obtain with common aromatic amine
Amino-terminated polyurethane elastomeric prepolymer body.
It is preferred that, the isocyanates is toluene di-isocyanate(TDI), and the polyol is PPG, described
Common aromatic amine is m-xylene diamine；
The amino-terminated polyurethane elastomeric prepolymer body is by toluene di-isocyanate(TDI) and PPG according to mol ratio 4:1 mixes
Close, synthesized under argon atmosphere protection and chlorobenzoyl chloride catalytic action, then with m-xylene diamine according to toluene di-isocyanate(TDI):
PPG:M-xylene diamine is 4:1:2 molar ratio reaction, obtains amino-terminated polyurethane elastomeric prepolymer body.
It is preferred that, the acrylic amide injection slurry is bi-component water soluble acrylamido's gel, and wherein component A is third
Acrylamide solution, mass concentration is 5%~20%, and B component is acrylamide polymerization initiator and the aqueous solution for polymerizeing adjuvant.
It is preferred that, the component A is made up of the raw material of following percetage by weight：5%~20% acrylamide, 1%
The water of disodium hydrogen phosphate, 0.5%~2% triethylene tetramine and surplus.
It is preferred that, the B component is made up of the raw material of following percetage by weight：2%~8% ammonium persulfate, 1%~
The water of 3% sodium sulfite, 1%~5% sodium chlorate and surplus.
It is preferred that, the high-pressure slip-casting equipment is plunger pump, and highest outlet pressure is 150MPa.
The application has following beneficial technique effect：
(1) the inventive method carries out basement or the seepage 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, it is ensured 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 network structure, Gu
It is melted into after film, is firmly combined with concrete, the seepage of acrylic amide injection slurry under the conditions of high-pressure slip-casting can be prevented, influences 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, do not ftracture for a long time, and can polymerize under conditions of the minimum zero degrees celsius of construction temperature, acrylamide
Polymerization initiator in B component in class injection slurry and polymerize adjuvant content it is adjustable, it is ensured that A, B component are in any construction temperature
Simultaneously gel time was maintained in 1~5 minute the lower generation polymerization of degree.
(4) bi-component water soluble acrylamido's gel property prepared by the present invention is stable, 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.
Embodiment
For a further understanding of the present invention, the preferred embodiment of the invention is described with reference to embodiment, still
It should be appreciated that these descriptions simply further illustrate the feature and advantage of the present invention, rather than to the limit of the claims in the present invention
System.
It is used for the high-pressure slip-casting blocking method of basement or top plate of underground parking garage, including following step this application provides a kind of
Suddenly：
1) seepage crack is positioned first, position and its length in crack is determined, then cleans crack and its peripheral region, so
Afterwards with leak stopping spirit sealing crack；
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 uses the junction of the edges of two sheets of paper or inclined hole form, and slip casting hole depth determines according to concrete thickness, pitch-row
Determined by on-site actual situations；
3) with high-pressure slip-casting equipment to step 2) in Water slop injector in inject polyurethane modified epoxy resin class injection slurry,
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 pulled down, and
Continue the 5cm~10cm that drills, and embedded new Water slop injector on the basis of former injected hole；
5) with high-pressure slip-casting equipment to step 4) in new Water slop injector in inject acrylic amide injection slurry, until note
Slurry pressure reaches more than 100MPa, or acrylic amide injection slurry is from closing at Water slop injector or crack untill seepage；
6) after acrylic amide slip casting liquid grout is finished, observation plugging effect overnight, if also seepage, should proceed third
Acrylamide injection slurry grouting operation, untill seepage does not occur for breakthrough；
7) after success leak stopping, Water slop injector is removed, and injected hole and whole seepage crack are closed with leak stopping spirit.
In one embodiment of the application, the polyurethane modified epoxy resin class injection slurry changes for dual-component polyurethane
Property epoxy resin adhesive, wherein first component be amino-terminated polyurethane elastomeric prepolymer body, second component be bisphenol type epoxy tree
Fat.
In one embodiment of the application, the amino-terminated polyurethane elastomeric prepolymer body by isocyanates with it is polyhydroxylated
Compound is proportionally mixed, and is synthesized, is then pressed with common aromatic amine under argon atmosphere protection and chlorobenzoyl chloride catalytic action
According to ratio reaction, amino-terminated polyurethane elastomeric prepolymer body is obtained.
In one embodiment of the application, the isocyanates is toluene di-isocyanate(TDI), the polyol
For PPG, the common aromatic amine is m-xylene diamine；
The amino-terminated polyurethane elastomeric prepolymer body is by toluene di-isocyanate(TDI) and PPG according to mol ratio 4:1 mixes
Close, synthesized under argon atmosphere protection and chlorobenzoyl chloride catalytic action, then with m-xylene diamine according to toluene di-isocyanate(TDI):
PPG:M-xylene diamine is 4:1:2 molar ratio reaction, obtains amino-terminated polyurethane elastomeric prepolymer body.
In one embodiment of the application, the acrylic amide injection slurry is bi-component water soluble acrylamido's gel
Agent, wherein component A are acrylamide solution, and mass concentration is 5%~20%, and B component is acrylamide polymerization initiator and poly-
Close the aqueous solution of adjuvant.
In one embodiment of the application, the component A is made up of the raw material of following percetage by weight：5%~20%
Acrylamide, 1% disodium hydrogen phosphate, the water of 0.5%~2% triethylene tetramine and surplus.
In one embodiment of the application, the B component is made up of the raw material of following percetage by weight：2%~8%
Ammonium persulfate, 1%~3% sodium sulfite, the water of 1%~5% sodium chlorate and surplus.
In one embodiment of the application, the high-pressure slip-casting equipment is plunger pump, and highest outlet pressure is 150MPa.
The leak stopping principle for the high-pressure slip-casting blocking method for being used for basement or top plate of underground parking garage that the application is provided：
Compression strength is up to more than 50MPa after the solidification of polyurethane modified epoxy resin class injection slurry, but its slurries initially glues
Degree is big, and infiltration coefficient is small, it is difficult to be injected into very deep very thin crack, elasticity is moderate；
And compression strength is low after the solidification of acrylic amide injection slurry, and anti-chap processing, but its slurries initial viscosity need to be done
Low, infiltration coefficient is big, can penetrate into micro-cracks or hole, gel time is short, and gel has very big telescopic resilience, after injection
It is waterproof；
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；
Compression strength is moderate up to more than 50MPa, elasticity after being solidified using polyurethane modified epoxy resin class injection slurry
Feature, allows it as the support frame after fracture plugging grout cures, as the coagulum after the whole 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, be difficult the characteristics of being injected into very deep very thin crack, the big seam allowed in its filling cracks, etc.
Many tiny gaps or cavity are formed after it solidifies, in the middle of coagulum, so that big seam in a disguised form is become crack；
Low using acrylic amide injection slurry initial viscosity, infiltration coefficient is big, the spy that can penetrate into micro-cracks or hole
Point, fills up many tiny gaps formed in the middle of the coagulum after the solidification of polyurethane modified epoxy resin class injection slurry or sky
Hole, and because grouting pressure is in more than 100MPa so that the big acrylic amide injection slurry of infiltration coefficient can fill up almost institute
Fine gap in the middle of 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 on the basis of polyurethane modified epoxy resin class injection slurry injected hole continue drill 5cm~
10cm so that the slip casting entrance of acrylic amide injection slurry is to be opened in coagulating after the solidification of polyurethane modified epoxy resin class injection slurry
Gu inside thing, acrylic amide injection slurry is the center portion from the coagulum after the solidification of polyurethane modified epoxy resin class injection slurry
To surrounding edge spread, after the two all solidifies, obtain be the coagulum of polyurethane modified epoxy resin class injection slurry from the outside
The coagulum of acrylic amide injection slurry is wrapped in, as the hard plate first of one side protects the relatively low spun gold hapalonychia of the inside intensity,
There is the outer guard of the coagulum of polyurethane modified epoxy resin class injection slurry, without again 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, third in fine gap in the middle of coagulum or cavity after polyurethane modified epoxy resin class injection slurry solidifies
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 in the middle of many tiny gaps or cavity further turgor with sealing so that significantly
Improve plugging effect；
Present invention take advantage of that the very strong complementarity in terms of some key performances therebetween, using polyurethane-modified
Epoxy resin injection slurry slightly mends seepage, mends seepage using acrylic amide injection slurry essence on this basis, is changed using polyurethane
The property big seam of epoxy resin injection slurry leak stopping, is carefully stitched using the leak stopping of acrylic amide injection slurry, utilizes polyurethane on this basis
Modified epoxy class injection slurry forms hard support frame, and acrylic amide injection slurry formation skeleton is utilized on this basis
In soft filler, using polyurethane modified epoxy resin class injection slurry formation outer guard, propylene is utilized on this basis
Intumescent filler thing on the inside of the formation of amide-type injection slurry, so that have complementary advantages, combination among the strong ones, and maximize favourable factors and minimize unfavourable ones, realize underground
Room or the quick grouting for water plugging of top plate of underground parking garage, improve leak stopping quality, improve the persistence of leak stopping, and do not destroy building
The original structure and function of thing, meet architectural development needs at this stage.
The present invention is not limited NM processing equipment and technological parameter in the above method, using in the art
Processing equipment known to technical staff and technological parameter.
For a further understanding of the present invention, basement or underground are used for one kind that the present invention is provided with reference to embodiment
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：
Weifang cell top plate of underground parking garage seepage is repaired：Comprise the following steps：
1) seepage crack is positioned first, position and its length in crack is determined, then cleans crack and its peripheral region, so
Afterwards with leak stopping spirit sealing crack；
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 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 pressed according to concrete thickness
On-site actual situations are determined；
3) with high-pressure slip-casting equipment to step 2) in Water slop injector in inject polyurethane modified epoxy resin class injection slurry,
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
First component is amino-terminated polyurethane elastomeric prepolymer body, and second component is bisphenol A type epoxy resin；
The amino-terminated polyurethane elastomeric prepolymer body is by toluene di-isocyanate(TDI) and PPG according to mol ratio 4:1 mixes
Close, synthesized under argon atmosphere protection and chlorobenzoyl chloride catalytic action, then with m-xylene diamine according to toluene di-isocyanate(TDI):
PPG:M-xylene diamine is 4:1:2 molar ratio reaction, 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 pulled down, and
Continue the 6cm that drills, and embedded new Water slop injector on the basis of former injected hole；
The acrylic amide injection slurry is bi-component water soluble acrylamido's gel, and wherein component A is acrylamide
Solution, mass concentration is 15%, and B component is acrylamide polymerization initiator and the aqueous solution for polymerizeing adjuvant；
The component A is made up of the raw material of following percetage by weight：15% acrylamide, 1% disodium hydrogen phosphate,
1% triethylene tetramine and the water of surplus；
The B component is made up of the raw material of following percetage by weight：5% ammonium persulfate, 2% sodium sulfite, 3%
The water of sodium chlorate and surplus；
5) with high-pressure slip-casting equipment to step 4) in new Water slop injector in inject acrylic amide injection slurry, until note
Slurry pressure reaches more than 100MPa, or acrylic amide injection slurry is from closing at Water slop injector or crack untill seepage；
6) after acrylic amide slip casting liquid grout is finished, observation plugging effect overnight, if also seepage, should proceed third
Acrylamide injection slurry grouting operation, untill seepage does not occur for breakthrough；
7) after success leak stopping, Water slop injector is removed, and injected hole and whole seepage crack are closed with leak stopping spirit.
The explanation of above example is only intended to the method and its core concept for helping to understand the present invention.It should be pointed out that pair
, under the premise without departing from the principles of the invention, can also be to present invention progress for those skilled in the art
Some improvement and modification, these are improved and modification is also fallen into the protection domain of the claims in the present invention.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
A variety of modifications for these embodiments are it will be apparent that 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 principles disclosed herein and features of novelty
Widest range.
Claims (8)
1. a kind of be used for the high-pressure slip-casting blocking method of basement or top plate of underground parking garage, it is characterised in that comprises the following steps：
1) seepage crack is positioned first, position and its length in crack is determined, then cleans crack and its peripheral region, Ran Houyong
Leak stopping spirit sealing crack；
2) according to the concrete structure thickness at crack, injected hole is being drilled at the 0-50mm of crack, and 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 is determined according to concrete thickness, and pitch-row is by existing
Field actual conditions are determined；
3) with high-pressure slip-casting equipment to step 2) in Water slop injector in inject polyurethane modified epoxy resin class injection slurry, 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 pulled down, and in original
Continue the 5cm~10cm that drills, and embedded new Water slop injector on the basis of injected hole；
5) with high-pressure slip-casting equipment to step 4) in new Water slop injector in inject acrylic amide injection slurry, until slip casting pressure
Power reaches more than 100MPa, or acrylic amide injection slurry is from closing at Water slop injector or crack untill seepage；
6) after acrylic amide slip casting liquid grout is finished, observation plugging effect overnight, if also seepage, should proceed acryloyl
Amine injection slurry grouting operation, untill seepage does not occur for breakthrough；
7) after success leak stopping, Water slop injector is removed, and injected hole and whole seepage crack are closed with leak stopping spirit.
2. high-pressure slip-casting blocking method according to claim 1, it is characterised in that the polyurethane modified epoxy resin class
Injection slurry is dual-component polyurethane modified epoxy class adhesive, and wherein first component is amino-terminated polyurethane elastomeric prepolymer body,
Second component is bisphenol A type epoxy resin.
3. high-pressure slip-casting blocking method according to claim 2, it is characterised 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
Into then proportionally being reacted with common aromatic amine, obtain amino-terminated polyurethane elastomeric prepolymer body.
4. high-pressure slip-casting blocking method according to claim 3, it is characterised in that the isocyanates is toluene diisocyanate
Acid esters, the polyol is PPG, and the common aromatic amine is m-xylene diamine；
The amino-terminated polyurethane elastomeric prepolymer body is by toluene di-isocyanate(TDI) and PPG according to mol ratio 4:1 mixing,
Synthesized under argon atmosphere protection and chlorobenzoyl chloride catalytic action, then with m-xylene diamine according to toluene di-isocyanate(TDI):It is poly-
Ethoxylated polyhydric alcohol:M-xylene diamine is 4:1:2 molar ratio reaction, obtains amino-terminated polyurethane elastomeric prepolymer body.
5. high-pressure slip-casting blocking method according to claim 1, it is characterised in that the acrylic amide injection slurry is double
Component water soluble acrylamido's gel, wherein component A are acrylamide solution, and mass concentration is 5%~20%, and B component is
Acrylamide polymerization initiator and the aqueous solution for polymerizeing adjuvant.
6. high-pressure slip-casting blocking method according to claim 5, it is characterised 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.
7. high-pressure slip-casting blocking method according to claim 5, it is characterised 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.
8. high-pressure slip-casting blocking method according to claim 1, it is characterised in that the high-pressure slip-casting equipment is plunger
Pump, highest outlet pressure is 150MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107201753A true CN107201753A (en) | 2017-09-26 |
| CN107201753B CN107201753B (en) | 2019-04-05 |
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| CN110241837A (en) * | 2019-07-08 | 2019-09-17 | 中国建筑第四工程局有限公司 | A kind of construction method for preventing basement bottom board from cracking under high artesian geological conditions |
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