CN109799283A - A kind of method of quick judgement prefabricated concrete structure middle sleeve grouting full weight - Google Patents
A kind of method of quick judgement prefabricated concrete structure middle sleeve grouting full weight Download PDFInfo
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- CN109799283A CN109799283A CN201910040126.4A CN201910040126A CN109799283A CN 109799283 A CN109799283 A CN 109799283A CN 201910040126 A CN201910040126 A CN 201910040126A CN 109799283 A CN109799283 A CN 109799283A
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Abstract
The invention discloses a kind of methods for quickly judging prefabricated concrete structure middle sleeve grouting full weight, it is provided with pulp duct between sleeve grout outlet and prefabricated components surface grout outlet, the grouting material end face in pulp duct close to prefabricated components surface side is arranged to impulse detection face；Position of the record impulse detection face in pulp duct, arranges percussion mechanism on impulse detection face before detection, carries out impact test to impact detection faces；After impact; position of the record impulse detection face in pulp duct again; the grouting full weight in sleeve is judged according to whether the grouting material under impact force action in pulp duct occurs demoulding sliding between the inner wall of pulp duct; if impulse detection face generates obvious displacement; then determine that grouting is not full in sleeve, it is on the contrary then determine to be in the milk in sleeve full.Testing principle of the present invention is simply ingenious, and detection method operation is convenient, can rapidly and accurately judge whether sleeve grouting is full, and be highly susceptible to promoting.
Description
Technical field
The present invention relates to assembled architecture technical fields, and in particular to one kind quickly judges to cover in prefabricated concrete structure
The method of cylinder grouting full weight.
Background technique
Prefabrication, which refers to that some or all of building component and component are produced in precast plant, to be completed, then is transported
Construction site is assembled component using reliable connection type and installation machinery, and formation has design building using function
Build object.With cast-in-place structural construction compared with, prefabricated construction have it is easy for construction, project progress is fast, surrounding environment influence is small,
The advantages that building element quality is easy to get guarantee.Prefabricated concrete structure is to propulsion urban construction process, raising engineering matter
Amount, promotion energy-saving and emission-reduction, improvement living environment, transformation building industry production method etc. have positive effect.
Sleeve grouting connection is one of the main connection type that current prefabricated concrete structure uses, and is had by inside
The steel sleeve for shearing slot realizes that reinforcing bar connects with the grouting material for pouring into high strength and no shrinting.To ensure that reinforcing bar valid bonding length is full
Sufficient design requirement, sleeve inner grouting material must fill full.Due to the factors such as component machining accuracy, site operation level, sleeve
The case where inside is likely to occur spillage, fills less.If sleeve inner grouting is not full, estimated performance will be not achieved in reinforcing bar connection, then
Structure security risk can be brought, therefore, the detection of grouting plumpness is particularly important inside reinforced bar sleeve.
Currently, existing sleeve grouting plumpness detection method has pre-buried sensor method, pre-buried steel wire hubbing, X-ray
Method and endoscope.
Pre-buried sensor method and pre-buried steel wire hubbing can only qualitatively detect grouting it is whether full, be using grouting insatiable hunger
Full range is usually located at sleeve slurry outlet and its turning with the feature of lower portion, passes through detection insertion sleeve grout outlet rear end
Built-in fitting whether by grouting material cladding come judge be in the milk full weight.The built-in fitting higher cost of pre-buried sensor method, pre-buried rear nothing
Method recycles, when the hardening for remaining slurry in the occasion that overfall occurs, Sensor core element may cause erroneous judgement；Pre-buried steel
Though silk hubbing reduces the cost of built-in fitting to a certain extent, testing result is discrete very big, and reliability is poor.
X-ray method and endoscope can quantitatively detect grouting plumpness, pass through full area of being in the milk in detection sleeve
Or the length of grouting defect area converts to obtain grouting plumpness, has the advantages that testing result is intuitive, with high accuracy.But X-ray
Method is limited to the penetration capacity of Portable X-ray machine, is only applicable to sleeve at present between two parties or the 200mm thickness of quincuncial pile arrangement is prefabricated
Plumpness of shear wall sleeve being in the milk detects, and must clear out a gathering place in 30 meters of carry out personnel of radiation scope when detection, is restricted by site condition,
Detection efficiency is not also high；Endoscope is needed through the interior measurement camera lens feeding barrel bore for peeping detection duct for endoscope, right
The component of preparatory pore-forming is carried out when not in grouting construction, late detection will detect duct using peeping in bore mode production, than
It is harder.
To sum up, there is also respective limitations in convenience, use condition for x-ray method and endoscope, if individually using
The above method carries out quantitative detection to each selected measuring point, certainly will will increase workload, reduces detection efficiency.If energy will be qualitative
Detection method is used cooperatively with quantitative detecting method, first quickly and accurately judges whether sleeve grouting is full, then screening is gone out
Not full sleeve carries out the precise determination of plumpness using quantitative detecting method, will greatly reduce labor intensity, improves detection effect
Rate.But pre-buried sensor method and pre-buried steel wire hubbing both existing qualitative checking methods, there are shortcomings, nothings
Method quickly and accurately judges whether sleeve grouting is full.
Therefore, need to research and develop it is a kind of can quickly, it is random, accurately judge sleeve be in the milk whether full detection method.
Summary of the invention
Quickly judge that the grouting of prefabricated concrete structure middle sleeve is full the technical problem to be solved in the present invention is to provide a kind of
The method of full property, it is convenient to operate, and testing cost is low, can quickly, at random, accurately judge whether sleeve grouting is full, is easy to
It promotes.
Quickly judge that prefabricated concrete structure middle sleeve fills in order to solve the above-mentioned technical problems, the present invention provides a kind of
The method for starching full weight, is provided with pulp duct between sleeve grout outlet and prefabricated components surface grout outlet, by pulp duct
The grouting material end face of interior close prefabricated components surface side is arranged to impulse detection face；
Include following detecting step:
Position of the record impulse detection face in pulp duct before detection；
Percussion mechanism is arranged on impulse detection face, and impact test is carried out to impact detection faces；
When sleeve grouting is full, the grouting material in grouting material and sleeve in pulp duct is continuously, in impact force
Transmission path within the scope of without cavity zone, demoulding will not occur between the grouting material and pulp duct inner wall in pulp duct and slide
Move, when being in the milk not full, the grouting material in grouting material and sleeve in pulp duct be it is discontinuous, in the transmitting of impact force
There is cavity zone in path domain, demoulding sliding can occur between the grouting material in pulp duct and pulp duct inner wall；
Position of the impulse detection face in pulp duct is recorded after impact again, according to impulse detection face in pulp duct
Obvious displacement whether is generated to judge full weight of being in the milk, if impulse detection face generates obvious displacement, determines that grouting is not in sleeve
It is full, it is on the contrary then determine that grouting is full in sleeve.
Further, the pulp duct is prepared by the hard straight tube of PVC and is formed, the hard straight tube of PVC and sleeve grout outlet
Inner wall plugs connection.
Further, the impulse detection face has even curface, and the pulp duct is vertical with impulse detection face to be set
It sets, the impulse detection face obtains in the following manner:
Before grouting terminates, in prefabricated components surface grout outlet by blocking plug plugging grouting material, closure plug, which is located at, fills in end
The surface of side should be plane, and the plug that blocks is the mold for forming impulse detection face.
Further, the percussion mechanism be hammer and impact connector, the impact connector be it is T-shaped, before detection
The abutting bar for impacting connector is vertically first abutted into impulse detection face, then with the impact end of hammer impact connector.
Further, the percussion mechanism is spring impactor, and the impact force of the spring impactor is not less than 300N, inspection
It first puts into gear to spring impactor before surveying, then by spring impactor perpendicular alignmnet impulse detection face, release spring impactor
Impact bar carry out impact test；The spring impactor is applicable to the occasion of metering impact force.
Further, before detection, the grouting material condensation firm time in sleeve is more than or equal to 3 days.
Further, impact test is carried out to impact detection faces, number of shocks provides as follows:
After impacting for the first time, when impulse detection face generates obvious displacement, then stop impacting；
After impacting for the first time, when impulse detection face does not generate obvious displacement, bump is answered to be no less than 2 times.
Further, when determining that grouting is not full, it is quantitative that grouting plumpness is carried out using 3 D stereo measurement endoscope
It examines, peeps detection duct in the corresponding height and position production of sleeve grout outlet, the side view of 3 D stereo measurement endoscope is surveyed
Amount camera lens is sent into barrel bore and is observed down, and the length of grouting defect area is measured, and converts further according to the length of grouting defect area
To grouting plumpness.
Further, detection duct is peeped in the corresponding height and position production of sleeve grout outlet, includes the following three types method:
Method 1 is worn drawing screw shaped and filled at combination beyond the Great Wall blocking, using combination plug to prefabricated components when grouting construction
Surface grout outlet is blocked, and is first taken out before detection and is blocked plug, and drawing screw rod is prefabricated in grouting material, when detection, first uses steel
Casing processed is as impact connector and is equipped with hammer progress impact test, and drawing screw rod is in the neutral position among steel casing
It sets, when judging that impulse detection face generates obvious displacement, is connect using drawing equipment with drawing screw rod, by the filling in pulp duct
Slurry carries out drawing taking-up, and detection duct is peeped in formation；
Method 2 is drilled using drilling device along pulp duct, to the grouting material debris and powder in pulp duct
It carries out peeping detection duct in cleaning production；
Method 3, from prefabricated components surface grout outlet at the projection position at the prefabricated components back side, concrete on the outside of sleeve is protected
Sheath is locally rejected, by peeping detection duct in aperture production in sleeve wall.
Further, using method 1 make in peep detection duct when, the overall length thread cutting of drawing screw rod, drawing screw rod
Axial length be greater than block plug axial length and its length difference be more than or equal to 20mm, drawing screw rod is prefabricated in grouting material
Part be set as anchoring section, drawing screw rod is threaded through the part blocked in plug and is set as drawing section, and the drawing equipment includes rivet
Drawing instrument and the U-shaped card and drawing connector of mating connection.
Beneficial effects of the present invention:
1, whether the present invention occurs demoulding sliding according to grouting material by applying impact force to the grouting material in pulp duct
Whether full to judge to be in the milk, testing principle is simply ingenious, and detection method operation is convenient, can accomplish random inspection, not only examine
The personnel for surveying unit are easily mastered, and the personnel of supervisor and unit in charge of construction can also carry out grouting quality using this method certainly
It looks into.
2, detection method of the invention is not limited by prefabricated components spatial position, sleeve arrangement, as long as there is unilateral side
Operating surface, can be detected, grout outlet is usually located inside metope for exterior wall, and the present invention solves exterior wall and be difficult to
The puzzlement of detection, and it is fast, high-efficient to detect speed.
3, detection method of the invention can be used cooperatively with quantitative detecting method, first quickly and accurately judge that sleeve fills
Precise determination that is whether full, then carrying out plumpness using quantitative detecting method to the not full sleeve of screening out is starched, it will significantly
Labor intensity is reduced, detection efficiency is improved.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of reinforced bar sleeve grouting connection of the invention；
Fig. 2 is the full state impulse detection schematic diagram of grouting of the invention；
Fig. 3 is the not full state impulse detection schematic diagram of grouting of the invention；
Fig. 4 is the structural schematic diagram in Fig. 3 of the present invention after impulse detection；
Fig. 5 is the structural schematic diagram when present invention blocks pulp duct using combination plug；
Fig. 6 is operation chart of the present invention using progress impact test when combination plug；
Fig. 7 is that the present invention uses the operation chart that detection duct is peeped in production when combination plug；
Fig. 8 is pulp duct schematic top plan view when sleeve of the invention is distributed with quincuncial pile formula；
Fig. 9 is of the invention using the operation chart for peeping detection duct in sleeve wall in aperture production.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples, so that those skilled in the art can be with
It more fully understands the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
Shown in Fig. 1, the structural schematic diagram of reinforced bar sleeve grouting connection, including prefabricated components 1 are given, prefabricated structure is embedded in
Sleeve 2 in part, the upper and lower side of sleeve are inserted into upper reinforcement and lower rebar respectively, in sleeve grout outlet 3 and prefabricated components table
It is provided with pulp duct 5 between face grout outlet 4, is in the milk between mouth and prefabricated components grout surface mouth in sleeve and is provided with grout hole
Road when carrying out grouting connection, pours into high-intensitive contraction-free grouting concrete 6 by duct of being in the milk, after grouting material is flowed out from pulp duct
Stop grouting, fill in 8 plugging grouting material using blocking, the connection of upper reinforcement and lower rebar is realized after grouting material condensation hardening,
The turgor of grouting material is related to the bonding strength of upper reinforcement and lower rebar in sleeve；In this application, pulp duct
The grouting material end face of interior close prefabricated components surface side is impulse detection face 7；Wherein, before detection, the grouting in sleeve
Material condensation firm time is more than or equal to 3 days, to guarantee that the grouting material in sleeve and pulp duct has reached some strength, prevents from rushing
The grouting material in pulp duct is smashed when hitting.
Shown in referring to Figure 2 to Figure 4, the side of quick judgement prefabricated concrete structure middle sleeve grouting full weight of the invention
One embodiment of method includes following detecting step:
Extract and block plug 8, first position of the record impulse detection face in pulp duct before detection, can with marking pen or
The modes such as person's marking record；Then percussion mechanism 9 is arranged on impulse detection face, and impact test, punching are carried out to impact detection faces
Direction is hit towards sleeve inner；Referring to shown in Fig. 2, when sleeve grouting is full, in the grouting material and sleeve in pulp duct
Grouting material be it is continuous, without cavity zone within the scope of the transmission path of impact force, impact force is passed to barrel bore and final
It is undertaken by sleeve and prefabricated components, demoulding sliding will not occur between the grouting material in pulp duct and pulp duct inner wall；Ginseng
According to shown in Fig. 3 and Fig. 4, when being in the milk not full, there are cavitys at the top of barrel bore, and also can in pulp duct under normal conditions
There are cavitys due to grouting material is back to sleeve, therefore the grouting material in the grouting material and sleeve in pulp duct is discontinuous
, there is cavity zone 10 within the scope of the transmission path of impact force, impact force is completely by between pulp duct inner wall and grouting material
Quiet frictional resistance undertakes, as long as impact force is greater than above-mentioned quiet frictional resistance, between the grouting material and pulp duct inner wall in pulp duct
Demoulding sliding will occur；
By above-mentioned detection means and principle, after impact, impulse detection face is recorded again in pulp duct
Position, obvious displacement whether is generated in pulp duct according to impulse detection face to judge full weight of being in the milk, if impulse detection
On the contrary face generates obvious displacement, then determines that grouting is not full in sleeve, then determine to be in the milk in sleeve full.
Wherein, pulp duct is prepared by the hard straight tube of PVC and is formed, and the hard straight tube of PVC is plugged with the inner wall of sleeve grout outlet to be connect,
The hard straight tube of PVC can be effectively formed linear type duct, and sliding can be demoulded under impact force action convenient for grouting material；It is worth noting
, the hard straight tube of PVC be not be set on the outside of sleeve grout outlet because to guarantee pulp duct be it is straight, if pvc pipe set
It is located on the outside of sleeve grout outlet, sleeve grout outlet can slide the demoulding of the grouting material in pulp duct and play inhibition.
Specifically, even curface is set by impulse detection face, and pulp duct is vertically arranged with impulse detection face,
To guarantee effective transmitting of impact force, impulse detection face can obtain in the following manner:
Before grouting terminates, in prefabricated components surface grout outlet by blocking plug plugging grouting material, blocks to fill in be located at and fill in
The surface of side is held to should be plane, blocking plug is the mold for forming impulse detection face, and grouting material is non-condensing preceding and closure plug
After filling in end in contact, it can be effectively formed plane, guarantee subsequent detection effect.
When detecting, it is influenced to reduce operating error bring, impact test, number of shocks is carried out to impact detection faces
It provides as follows:
After impacting for the first time, when impulse detection face generates obvious displacement, then stop impacting；
After impacting for the first time, when impulse detection face does not generate obvious displacement, bump is answered to be no less than 2 times, improves detection
As a result reliability.
It can be concluded that the conclusion that grouting is not full or grouting is full can be used when determining that grouting is not full after detection
3 D stereo measurement endoscope carries out grouting plumpness quantitative testing, peeps inspection in the corresponding height and position production of sleeve grout outlet
The side view measurement camera lens of 3 D stereo measurement endoscope is sent into barrel bore and observed down, measures grouting defect area by gaging hole road
Length, convert to obtain grouting plumpness further according to the length of grouting defect area.
Specifically, peeping detection duct in the corresponding height and position production of sleeve grout outlet, following three kinds of sides can be used
Any one in method:
It moves, grouting material can also reversely be taken since grouting material can be impacted by percussion mechanism towards sleeve inner
Out, method 1 is used according to above-mentioned principle；
Shown in method 1, reference Fig. 5 to Fig. 7, the pre-production combination plug before sleeve grouting construction is needed, combination plug is by sealing
The formation of drawing screw rod 16 is worn in blocking, prefabricated components surface grout outlet is blocked using combination plug when grouting construction, is examined
First taken out before surveying and block plug, drawing screw rod is prefabricated in grouting material, when detection, first using steel casing as impact connector simultaneously
It is equipped with hammer and carries out impact test, drawing screw rod be in the neutral position among steel casing, when judging the generation of impulse detection face
It when obvious displacement, is connect using drawing equipment 17 with drawing screw rod, the grouting material in pulp duct is subjected to drawing taking-up, is formed
Inside peep detection duct.Drawing mode can integrally take out the grouting material in pulp duct without generating clast, facilitate three-dimensional vertical
Bulk measurement endoscope protrudes into detection.
When using method 1 make in peep detection duct when, the overall length of drawing screw rod can be with thread cutting, the axis of drawing screw rod
It is greater than the axial length for blocking plug to length and its length difference is more than or equal to 20mm, by the prefabricated portion in grouting material of drawing screw rod
It is divided into anchoring section, drawing screw rod is threaded through the part blocked in plug and is set as drawing section, and overall length thread cutting is capable of providing drawing
Section and the secured connection effect and anchoring section of drawing equipment and the secured connection effect of grouting material；Drawing equipment includes that rivet is drawn
The U-shaped card 19 and drawing connector 20 for pulling out instrument 18 and being cooperatively connected, it is simple to operate.
Method 2 is drilled using drilling device along pulp duct, to the grouting material debris and powder in pulp duct
Peep in cleaning production detection duct, in the sleeve or quincuncial pile the formula arrangement that are centrally arranged in wall close to prefabricated structure
The sleeve of part surface grout outlet side, it is simple and convenient using this method since pulp duct is shorter, it is extremely practical.
Referring to shown in Fig. 8 and Fig. 9, when sleeve is arranged in quincuncial pile formula, the sleeve far from prefabricated components surface grout outlet
With longer pulp duct, there is inconvenience when drilling using drilling device, also destructible pulp duct, therefore method can be used
3；
Method 3, from prefabricated components surface grout outlet at the projection position 13 at the prefabricated components back side, by concrete on the outside of sleeve
The part of protective layer 14 is rejected, by sleeve wall aperture 15 make in peep detection duct, in which can be formed quickly
Detection duct is peeped, and space needed for aperture is small, the part rejecting area of concrete cover is also smaller, does not make to prefabricated components
At damaging destroying infection, also facilitate repairing after detection.
In one embodiment, above-mentioned percussion mechanism be hammer 11 and impact connector 12, impact connector be it is T-shaped,
The abutting bar for impacting connector is vertically first abutted into impulse detection face before detection, then with the impact of hammer impact connector
It holds, impact end can be dish configuration, facilitate impact and be capable of the hand of effective protection gripping abutting bar.
In one embodiment, for needing to measure the occasion of impact force, the percussion mechanism can be spring impactor, described
The impact force of spring impactor is not less than 300N, first puts into gear to spring impactor before detection, then spring impactor hangs down
Straight alignment impulse detection face, the impact bar of release spring impactor carries out impact test, since the impact force of spring impactor is
It is fixed and measurable, it can influence to avoid human factor to testing result.
Above embodiments are only to absolutely prove preferred embodiment that is of the invention and being lifted, and protection scope of the present invention is not
It is limited to this.Those skilled in the art's made equivalent substitute or transformation on the basis of the present invention, in guarantor of the invention
Within the scope of shield.Protection scope of the present invention is subject to claims.
Claims (10)
1. a kind of method for quickly judging prefabricated concrete structure middle sleeve grouting full weight, in sleeve grout outlet and prefabricated structure
Pulp duct is provided between the grout outlet of part surface, which is characterized in that by prefabricated components surface side close in pulp duct
Grouting material end face is arranged to impulse detection face；
Include following detecting step:
Position of the record impulse detection face in pulp duct before detection；
Percussion mechanism is arranged on impulse detection face, and impact test is carried out to impact detection faces；
When sleeve grouting is full, the grouting material in grouting material and sleeve in pulp duct is continuously, in the biography of impact force
Demoulding sliding will not be occurred between grouting material and pulp duct inner wall without cavity zone, in pulp duct by passing in path domain, when
When being in the milk not full, the grouting material in grouting material and sleeve in pulp duct be it is discontinuous, in the transmission path of impact force
There is cavity zone in range, demoulding sliding can occur between the grouting material in pulp duct and pulp duct inner wall；
Position of the impulse detection face in pulp duct is recorded after impact again, according to impulse detection face in pulp duct whether
Obvious displacement is generated to judge full weight of being in the milk, if impulse detection face generates obvious displacement, determines that grouting is not full in sleeve,
It is on the contrary then determine that grouting is full in sleeve.
2. a kind of method for quickly judging prefabricated concrete structure middle sleeve grouting full weight as described in claim 1,
It is characterized in that, the pulp duct is prepared by the hard straight tube of PVC and formed, and the inner wall of the hard straight tube of PVC and sleeve grout outlet plugs
Connection.
3. a kind of method for quickly judging prefabricated concrete structure middle sleeve grouting full weight as described in claim 1,
It is characterized in that, the impulse detection face has even curface, and the pulp duct is vertically arranged with impulse detection face, the punching
Detection faces are hit to obtain in the following manner:
Before grouting terminates, in prefabricated components surface grout outlet by blocking plug plugging grouting material, closure plug, which is located at, fills in end side
Surface should be plane, the plug that blocks is the mold for forming impulse detection face.
4. a kind of method for quickly judging prefabricated concrete structure middle sleeve grouting full weight as described in claim 1,
Be characterized in that, the percussion mechanism be hammer and impact connector, the impact connector be it is T-shaped, detection before first will impact
The abutting bar of connector vertically abuts impulse detection face, then with the impact end of hammer impact connector.
5. a kind of method for quickly judging prefabricated concrete structure middle sleeve grouting full weight as described in claim 1,
It is characterized in that, the percussion mechanism is spring impactor, and the impact force of the spring impactor is not less than 300N, first right before detection
Spring impactor is put into gear, then by spring impactor perpendicular alignmnet impulse detection face, the impact bar of release spring impactor
Carry out impact test.
6. a kind of method for quickly judging prefabricated concrete structure middle sleeve grouting full weight as described in claim 1,
It is characterized in that, before detection, the grouting material condensation firm time in sleeve is more than or equal to 3 days.
7. a kind of method for quickly judging prefabricated concrete structure middle sleeve grouting full weight as described in claim 1,
It is characterized in that, impact test is carried out to impact detection faces, number of shocks provides as follows:
When impact detection faces generate obvious displacement after impacting for the first time, then stop impacting；
When impact detection faces do not generate obvious displacement after impacting for the first time, bump is answered to be no less than 2 times.
8. a kind of method for quickly judging prefabricated concrete structure middle sleeve grouting full weight as described in claim 1,
It is characterized in that, when determining that grouting is not full, grouting plumpness quantitative testing is carried out using 3 D stereo measurement endoscope, is being covered
Detection duct is peeped in the corresponding height and position production of cylinder grout outlet, the side view measurement camera lens of 3 D stereo measurement endoscope is sent into
Barrel bore is observed down, measure grouting defect area length, further according to grouting defect area length convert to obtain be in the milk it is full
Degree.
9. a kind of method for quickly judging prefabricated concrete structure middle sleeve grouting full weight as claimed in claim 8,
It is characterized in that, peeps detection duct in the corresponding height and position production of sleeve grout outlet, include the following three types method:
Method 1 is worn drawing screw shaped and filled at combination beyond the Great Wall blocking, using combination plug to prefabricated components surface when grouting construction
Grout outlet is blocked, and is first taken out before detection and is blocked plug, and drawing screw rod is prefabricated in grouting material, when detection, first uses steel set
Pipe is as impact connector and is equipped with hammer progress impact test, and drawing screw rod is in the neutral position among steel casing, when
When judging that impulse detection face generates obvious displacement, it is connect using drawing equipment with drawing screw rod, by the grouting material in pulp duct
Drawing taking-up is carried out, detection duct is peeped in formation；
Method 2 is drilled using drilling device along pulp duct, in pulp duct grouting material debris and powder carry out
Detection duct is peeped in cleaning production；
Method 3, from prefabricated components surface grout outlet at the projection position at the prefabricated components back side, by concrete cover on the outside of sleeve
Part is rejected, by peeping detection duct in aperture production in sleeve wall.
10. a kind of method for quickly judging prefabricated concrete structure middle sleeve grouting full weight as claimed in claim 9,
Be characterized in that, using method 1 make in peep detection duct when, the axial direction of the overall length thread cutting of drawing screw rod, drawing screw rod is long
Degree is greater than the axial length for blocking plug and its length difference is more than or equal to 20mm, and the prefabricated part in grouting material of drawing screw rod is set
For anchoring section, drawing screw rod is threaded through the part blocked in plug and is set as drawing section, the drawing equipment include rivet drawing instrument with
And the U-shaped card and drawing connector being cooperatively connected.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112504840A (en) * | 2020-11-26 | 2021-03-16 | 上海建工二建集团有限公司 | Assembled type building sleeve grouting quality detection device and construction method thereof |
| CN112798767A (en) * | 2020-12-29 | 2021-05-14 | 宁波工程学院 | Grouting fullness detection device and method for prefabricated concrete structure |
| CN113504135A (en) * | 2021-06-24 | 2021-10-15 | 昆山市建设工程质量检测中心 | Method for judging whether grouting material in grouting hole of sleeve slips or not under impact |
| CN114319917A (en) * | 2021-04-14 | 2022-04-12 | 昆山匹希通检测科技有限公司 | Single-hole filling and renovating method aiming at sleeve grouting defects |
| CN114660124A (en) * | 2022-03-16 | 2022-06-24 | 济南轨道交通集团有限公司 | Grouting sleeve plumpness detection and defect reinforcement device and application method thereof |
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| CN113504135A (en) * | 2021-06-24 | 2021-10-15 | 昆山市建设工程质量检测中心 | Method for judging whether grouting material in grouting hole of sleeve slips or not under impact |
| CN114660124A (en) * | 2022-03-16 | 2022-06-24 | 济南轨道交通集团有限公司 | Grouting sleeve plumpness detection and defect reinforcement device and application method thereof |
| CN114660124B (en) * | 2022-03-16 | 2024-05-28 | 济南轨道交通集团有限公司 | Grouting sleeve fullness detection and defect reinforcement device and application method thereof |
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