CN108982535B - Sleeve grouting plumpness detection method based on endoscope three-dimensional dimension measuring technique - Google Patents
Sleeve grouting plumpness detection method based on endoscope three-dimensional dimension measuring technique Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/90—Investigating the presence of flaws or contamination in a container or its contents
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/90—Investigating the presence of flaws or contamination in a container or its contents
- G01N21/909—Investigating the presence of flaws or contamination in a container or its contents in opaque containers or opaque container parts, e.g. cans, tins, caps, labels
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Abstract
The sleeve grouting plumpness detection method based on endoscope three-dimensional dimension measuring technique that the invention discloses a kind of, including rubber stopper, it is coated with the suction pipe of film, rigid casing and 3 D stereo measure endoscope, during sleeve grouting construction, after slurry is flowed out in pulp duct, cooperate the preparation detection duct in pulp duct by rubber stopper and the suction pipe for being coated with film, rubber stopper is extracted after slurry hardening and takes out the suction pipe in film, film, which is then left in pulp duct, forms detection duct, the length of the cooperation detection grouting defect of endoscope is then measured by rigid casing and 3 D stereo, by being compared with the design anchorage length for connecting reinforcing bar, obtain grouting plumpness ratio.The present invention has the advantages that testing cost is low, easy to operate and with high accuracy, intuitive, clear, quantitatively can observe and measure grouting defect, and then calculate grouting plumpness.
Description
Technical field
The present invention relates to prefabrication fields, and in particular to a kind of based on endoscope three-dimensional dimension measuring technique
Sleeve grouting plumpness detection method.
Background technique
Prefabricated assembled concrete structure has speed of application as a kind of structure type for meeting industrialized production
Fastly, labor intensity is low, noise pollution and wet construction is few and the advantages such as product quality is easy to control, it has also become domestic and international construction industry development
Main flow direction.
In assembled arthitecutral structure, especially in prefabricated concrete structure, component connection is to guarantee that structure is whole
The key node of quality.Reinforced bar sleeve grouting connection is the common reinforcing bar type of attachment in prefabricated concrete structure, is logical
Cross the cylindrical sleeve of special designing and reinforcing steel bar connecting device that the contraction-free grouting concrete as binder is composed.As difference
The main medium of prefabricated components load transmitting, plumpness of the grouting material in sleeve directly influence prefabricated concrete structure
Quality and safety.But may be because personnel's lack of skill, misoperation in work progress or lack a sense of responsibility, cause to leak
Slurry, running pulp phenomenon happen occasionally, and the appearance of this phenomenon has seriously affected grouting quality, the case where " filling discontented " occur, cause
Fatal constructional deficiency.Therefore, the detection method of strength cement-based grouting material plumpness is building trade extensive concern in grout sleeve
And urgent problem to be solved.
Due to grout sleeve component produce when be embedded in concrete, and grouting material be wrapped in concrete with
Among steel sleeve, multilayer dielectricity alternating, detection environment is complicated, and strength cement-based grouting material is very thin in radial thickness, generally 7 ㎜
~10 ㎜ cause existing engineering lossless detection method that can not effectively detect it.
Publication No. is that the Chinese patent literature of CN105223344A, CN107478512A propose two kinds of pre-buried class detection sides
Method, respectively pre-buried damping vibration sensor method and pre-buried steel wire hubbing are by the pre- of detection insertion sleeve grout outlet
Embedded part at grout outlet position whether by grouting material cladding come qualitatively judge be in the milk plumpness, can not accomplish quantitative detection.Its
In, the built-in fitting of pre-buried damping vibration sensor method is expensive, can not recycle after pre-buried, and after overfall, sensor core
The hardening that slurry is remained on heart element may cause erroneous judgement；Built-in fitting in pre-buried steel wire hubbing is steel wire, although certain
Material cost is reduced in degree, after centre-hole jack is extracted can also limited times recycling, but recycle pay
Cost of labor it is suitable with material cost, in addition, the indwelling outside prefabricated components surface of the drawing section of pre-buried steel wire is too long, lead
It disturbs or destroys vulnerable to scene before causing pre-buried steel wire detection.
The Chinese patent literature that above-mentioned pre-buried steel wire hubbing and publication No. are CN108152297A, proposes and peeps in use
Spectroscopy sleeve inner grouting situation.The former is the duct formed after being extracted using pre-buried steel wire, and endoscope probe is sent into and is covered
Cylinder is internal to be visually inspected indirectly；The latter is then can have one after the completion of grouting using the top of half grout sleeve permanently
Property cavity, one detection mouth is set in the top of sleeve grout outlet, and is sealed in advance before grouting with rubber stopper, grouting is completed
The rubber stopper at detection mouth is taken out afterwards, is visually inspected endoscope probe feeding sleeve inner indirectly by detection duct,
In order to which quantitative detection is in the milk plumpness, it is used in peep that water flood is final or grouting is measured by the volume of water filling to be lacked
Fall into the size in area.In addition, interior peep water flood although it is contemplated that spillage, running pulp happen grouting material volume in rear pulp duct
Uncertain bring influences, but is in the milk the influence of defect area sleeve lining and the remaining grouting material of rebar surface to water filling volume
It cannot exclude, finally still will affect detection accuracy.
To sum up, that there are built-in fittings is at high cost, examines without standard measure for pre-buried damping vibration sensor method and pre-buried steel wire hubbing
It surveys grouting plumpness and there may be the problems such as erroneous judgement；Pre-buried steel wire extract after endoscopy and by covering
The interior of detection mouth is added on cylinder and peeps water flood, is all only the indirect visual inspection that grouting plumpness is carried out using observation type endoscope
Look into, can only qualitatively determine whether it is full, can not directly measure grouting defect area size.It is additionally noted that in make
Sight glass can smoothly protrude into sleeve inner, and in terms of reserving hole channel moulding process, steel wire drawing method equally exists built-in fitting cost
Expensive, steel wire is easy to be disturbed or destroy by scene before extracting to lead to the disadvantages of finally can not be successfully pore-forming；Go out in half grout sleeve
The method added detection mouth above slurry mouth and then form detection duct changes the original construction of sleeve while also will increase certain
Sleeve production cost.
Summary of the invention
The sleeve grouting based on endoscope three-dimensional dimension measuring technique that the technical problem to be solved in the present invention is to provide a kind of
Plumpness detection method has the advantages that testing cost is low, easy to operate and with high accuracy, can intuitive, clearly, quantitatively observe
It is in the milk defect with measurement, and then calculates grouting plumpness.
In order to solve the above-mentioned technical problems, the present invention provides the sleeve grouting based on endoscope three-dimensional dimension measuring technique
Plumpness detection method, which is characterized in that measure endoscope including rubber stopper, suction pipe, rigid casing and 3 D stereo；
Centre bore is provided in the middle part of the rubber stopper；
The suction pipe outer surface is coated with film, and the suction pipe for being coated with film can be threaded through rubber by centre bore
In plug；
The 3 D stereo measurement endoscope includes sequentially connected endoscope host, connection hose, probe and camera lens, institute
Stating camera lens includes forward sight observation camera lens and side view 3 D stereo measurement camera lens；
Detection method includes the following steps for it:
A. the suction pipe for being coated with film is threaded through in rubber stopper, forms combination plug；
B. grouting construction is carried out to the sleeve in prefabricated components, after there is slurry outflow in pulp duct, combination is filled in from pre-
Component surface grout outlet processed is filled in pulp duct and is blocked；
C. after the completion of sleeves all in single prefabricated components grouting, start the position of adjustment combination plug inner suction pipe, will inhale
The inserting paragraph end of pipe, which is adjusted to the sleeve lining below sleeve grout outlet, to be flushed so that suction pipe the built-in mould in pulp duct at
Hole；
D. after grouting material hardening, first rubber stopper is extracted, then suction pipe is extracted, the film being coated on suction pipe is left on
In corresponding pulp duct and form detection duct；
E. it is protruded into detection duct with auxiliary tool and rupture of membranes work is carried out to the film of detection cell ends；
If film can be punctured, forward sight observation camera lens is first mounted on probe above and is seen inside duct to detecting
It examines, observation is punctured the cavity situation of place inside；
If film cannot be punctured, detection cell ends are entered to along detection duct using drilling reamer, and it is subsequent
Continue and drill toward sleeve inner, and carry out duct cleaning, forward sight observation camera lens is mounted on pops one's head in above and to detection duct after the completion
Inside is observed, and judges whether closely knit, determines to be in the milk if closely knit full, is carried out if leakiness in next step；
F. replacement installation side view 3 D stereo measures camera lens, and probe is protruded into rigid casing and guarantees that side view 3 D stereo is surveyed
Measure camera lens stretch out rigid casing inserting paragraph end, then by rigid casing protrude into detection duct reach sleeve lining with connect steel
Interstitial site between muscle is observed down, is measured endoscope by 3 D stereo and is obtained in sleeve grouting material upper surface to side view three
The vertical range between measurement in space camera lens shooting end face is tieed up, is converted to obtain grouting plumpness according to vertical range；
When sleeve is half grout sleeve, then half grout sleeve grouting plumpness=actual measurement grouting height h/ connection reinforcing bar is set
Anchorage length 8d is counted, d is the diameter for connecting reinforcing bar；The grouting sleeve grout outlet center height h=is wherein surveyed to sleeve bottom
Height b- (vertical range h of the grouting material upper surface to side view 3 D stereo measurement camera lens shooting end face1+ side view 3 D stereo is surveyed
Amount camera lens shoots end face to the vertical range h at sleeve grout outlet center2)
That is the grouting plumpness of half grout sleeve=(b- (h1+h2))/8d × 100%；
When sleeve is full grout sleeve, grouting plumpness is determined by the grouting situation of sleeve upper semisection, if grouting height
Being less than sleeve middle part, then direct judgement grouting plumpness is zero, if being in the milk highly more than sleeve middle part, plumpness of being in the milk=
(connection rebar design anchorage length 8d- grouting defect length L)/connection rebar design anchorage length 8d, d is the straight of connection reinforcing bar
Diameter；Wherein vertical range h of the grouting defect length L=grouting material upper surface to side view 3 D stereo measurement camera lens shooting end face1+
Side view 3 D stereo measures camera lens shooting end face to the vertical range h at sleeve grout outlet center2+ sleeve pulp port radius r
I.e. full grout sleeve grouting plumpness=(8d- (h1+h2+ r))/8d × 100%.
Further, the film is located at straw end and is provided with tearable portion.
Further, when sleeve is full grout sleeve, the method that whole group closes plug inner suction pipe position is exchanged in the step c
Are as follows: suction pipe is continued into until the inserting paragraph end of suction pipe resists connection rebar surface, and in rubber stopper outboard end and suction pipe
Intersection carry out mark, according to connection reinforcing bar and full grout sleeve inner wall between gap width, suction pipe is extracted outward, extract
Length be equal to the gap width between connection reinforcing bar and full grout sleeve inner wall so that the inserting paragraph end of suction pipe and sleeve pulp
Sleeve lining below mouthful flushes.
Further, when sleeve is half grout sleeve, the method that whole group closes plug inner suction pipe position is exchanged in the step c
Are as follows: first determine whether the insertion depth of connection reinforcing bar reaches the position height of suction pipe；When the position height for not reaching suction pipe,
Suction pipe is then continued into the inner cavity of half grout sleeve until reaching the half grout sleeve inner wall on sleeve grout outlet opposite, then will
Suction pipe is extracted outward, and the distance of extraction is equal to the internal diameter of half grout sleeve, so that the inserting paragraph end of suction pipe and sleeve grout outlet
The sleeve lining of lower section flushes；When the position height for reaching suction pipe, prefabricated components surface grout outlet is determined extremely according to design drawing
Then pulp orifice throat length between sleeve grout outlet subtracts pulp orifice throat length according to the total length of suction pipe and obtains suction pipe exposing
The length on prefabricated components surface, the length that adjustment suction pipe exposes prefabricated components surface are adjusted in place suction pipe.
Further, in step c after suction pipe position adjustment, trimming is exposed at the part on prefabricated components surface.
Further, in step e, if film cannot be punctured and sleeve is half grout sleeve, piercing depth is 7-
10mm or drilling are contacted to connection reinforcing bar；If film cannot be punctured and sleeve is full grout sleeve, drills to and connect
Connect reinforcing bar contact.
Further, when sleeve be half grout sleeve, and drilling reamer pierce depth reach 7-10mm but not yet with connection
When reinforcing bar contacts, after drilling, pore size measurement is carried out, judges whether the end for detecting duct is located at sleeve inner, such as
Detection duct is not up to sleeve inner, then continues drilling to sleeve inner.
Further, the diameter of the connection hose, probe and camera lens is not more than 4mm.
Further, in the step e, before using auxiliary tool, first trimming protrusion is detecting the film outside duct.
Further, the outer diameter of the rigid casing and drilling reamer is respectively less than the outer diameter of suction pipe.
Beneficial effects of the present invention:
1, the present invention is led under not full operating condition of being in the milk using the size measurement technique of 3 D stereo measurement endoscope
It crosses reserving hole channel to send side view 3 D stereo measurement camera lens to barrel bore, can intuitive, clear, quantitatively observe and measurement fills
Defect is starched, and then calculates grouting plumpness.
2, reserving hole channel moulding process of the invention is not change bush structure, under the premise of not changing grouting process,
With the cost almost ignored, detection duct is formed with very easy mode of operation, therefore can be big in filling process
Amount is laid, and to be truly realized random inspection when detecting, virtually increases the deterrent force of detection.
3, the detection duct that the present invention is formed is located at the center in pulp duct, and smooth straight, for stretching for endoscope probe
Enter and the determination of the vertical position of side view 3 D stereo measurement camera lens provides guarantee, and then improves detection accuracy.
4, under full operating condition of being in the milk, it need to only be pierced forward and be verified along reserving hole channel continuation using drilling reamer,
And piercing depth only needs the same gap connected between reinforcing bar and sleeve lining suitable, about 7-10mm, detection duct, which is used as, to drill and ream
Knife continues forward the pilot hole promoted, and it is small to pierce depth, is very easy to operation.
Detailed description of the invention
Fig. 1 is combination plug structure schematic diagram of the invention；
Fig. 2 is the cooperation schematic diagram of 3 D stereo measurement endoscope and rigid casing of the invention；
Fig. 3 is operational flowchart of the invention；
Fig. 4 is that the detection duct of the first full grout sleeve operating condition one of the invention prepares schematic diagram；
Fig. 5 is the schematic diagram after the simulation spillage hardening of the first full grout sleeve operating condition one of the invention；
Fig. 6 is the rupture of membranes schematic diagram of the first full grout sleeve operating condition one of the invention；
Fig. 7 is the shooting operation schematic diagram of the first full grout sleeve operating condition one of the invention；
Fig. 8 is the shooting measurement view in Fig. 7 of the present invention；
Fig. 9 is the detection duct processing signal after the full grouting hardening of the first full grout sleeve operating condition two of the invention
Figure；
Figure 10 is the shooting operation schematic diagram of the first full grout sleeve operating condition two of the invention；
Figure 11 is the shooting measurement view of second of full grout sleeve of the present invention；
Figure 12 is the shooting operation schematic diagram after the simulation spillage of half grout sleeve of the invention；
Figure 13 is the shooting measurement view of half grout sleeve of the invention；
Figure 14 is the schematic diagram that connection reinforcing bar is not up to suction pipe height and position in half grout sleeve of the invention；
Figure 15 is schematic diagram when suction pipe position adjustment is not up to standard in the present invention；
Figure 16 is that caused drilling schematic diagram not up to standard or not is adjusted in Figure 15 of the present invention.
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.
One embodiment of the sleeve grouting plumpness detection method based on endoscope three-dimensional dimension measuring technique of the invention,
Shown in referring to Figures 1 and 2, including rubber stopper 1, suction pipe 2, rigid casing 3 and 3 D stereo measure endoscope 4；3 D stereo is surveyed
Amount endoscope includes sequentially connected endoscope host 41, connection hose 42, probe 43 and camera lens 44, connection hose, probe and
The diameter of camera lens is not more than 4mm, and camera lens includes forward sight observation camera lens 441 and side view 3 D stereo measurement camera lens 442, according to need
It wants, two kinds of camera lenses can replace use；
Wherein, centre bore is provided in the middle part of rubber stopper, rubber stopper is for blocking pulp duct；Suction pipe outer surface is coated with thin
Suction pipe (can be encapsulated in film) by film 21, and film is integrally formed with suction pipe and can be servo-actuated, and the suction pipe for being coated with film can
It is threaded through in rubber stopper by centre bore, cooperatively forms sealing effect with rubber stopper, and suction pipe has certain intensity, therefore
It can be used as and be used at punch die；Film is located at straw end and is provided with tearable portion, convenient for poking；Rigid casing can be for even
It connects hose and probe protrudes into, play the role of positioning and protection；The outer diameter of rigid casing and drilling reamer is respectively less than the outer diameter of suction pipe,
It is less than the diameter in the detection duct that the later period is formed, convenient for protruding into operation.
It needs to carry out the preparation in detection duct at grouting construction scene before detection, as shown in figure 3, being the application detection method
Overall flow figure, carry out detection test referring to this process.
Operating operation test is carried out by taking the full grout sleeve of certain brand GTZQ414 model as an example, by the full grouting of GTZQ414 model
Sleeve is prefabricated to simulate field condition in test wall (i.e. prefabricated components), and the diameter for connecting reinforcing bar is 14mm；
Operating condition one, by simulation spillage so that the grouting material plumpness decline in full grout sleeve 111, with this operating condition into
Row operation:
The suction pipe for being coated with film is threaded through in rubber stopper first, obtains combination plug；Then to the sleeve in test wall
Grouting construction is carried out to fill in combination from test wall surface grout outlet after there is slurry outflow in the pulp duct 113 in wall to be tested
116, which fill in pulp duct, is blocked, i.e., suction pipe is not pre-buried before grouting construction, therefore will not influence the normal of pulp duct
Pulp；After the completion of sleeves all in single test wall grouting, then start the position of adjustment combination plug inner suction pipe, does not influence single
Rapid closure after the normal pulp of sleeve adjusts the inserting paragraph end of suction pipe to neat with the sleeve lining below sleeve grout outlet
It is flat, so that suction pipe is in the built-in mould pore-forming in pulp duct, referring to shown in Fig. 4；
Extremely crucial for the adjustment of suction pipe position, when suction pipe abuts connection reinforcing bar 112, suction pipe understands shape with reinforcing bar is connect
At overlap joint, the platform of slurry carry is formd after overlap joint, when there is running pulp or spillage, part size is very likely trapped in
On platform, leading to detection, there are loopholes；When adjustment, since the connection reinforcing bar at 115 end of sleeve grout outlet is at the top of sleeve
It is inserted into sleeve after sealing rubber ring, therefore, deviation situation is substantially not present in the connection reinforcing bar at sleeve grout outlet end, connection
Gap between reinforcing bar and sleeve lining is fixed value, the method for the adjustment suction pipe that can be used are as follows: continue into suction pipe directly
Insertion end to suction pipe resists connection rebar surface, and carries out mark (with connection in the intersection of rubber stopper outboard end and suction pipe
Reinforcing bar adjusts suction pipe position as object of reference), according to the gap width between connection reinforcing bar and full grout sleeve inner wall, a hand
Fixed rubber stopper, another hand extract suction pipe outward, and the length of extraction is equal between connection reinforcing bar and full grout sleeve inner wall
Gap width, the corresponding gap width of the full grout sleeve of GTZQ414 model is 8mm, so that suction pipe inserting paragraph end and sleeve pulp
Full grout sleeve inner wall below mouthful flushes.
After adjustment, trimming is exposed at the part on prefabricated components surface, avoids exposed parts by artificial destruction, thus meeting
Influence subsequent detection；After the completion of grouting, 8-10 minutes opening grouting mouth discharge section grouting materials are crossed, spillage situation, behaviour are simulated
After work, hardened to grouting material 114, referring to Figure 5, there are spillage phenomenons for grouting material；
The grouting plumpness that full grout sleeve can be detected after grouting material hardening, first by rubber stopper after grouting material hardening
It extracts, then suction pipe is extracted, the film being coated on suction pipe is left in corresponding pulp duct and is formed detection duct 22, by
Suction pipe is isolated with grouting material in film, therefore suction pipe can easily be extracted with hand；After suction pipe extraction, it is possible to which film is also
It is to have part to expose in outside, therefore trim film of the protrusion outside detection duct, avoids interference subsequent operation；
Referring to shown in Fig. 6, is protruded into detection duct after trimming using auxiliary tool 5 and the film of detection cell ends is carried out
Rupture of membranes work；It can guarantee that 3 D stereo measurement endoscope protrudes into use and will not be blocked and influence to shoot after rupture of membranes；
In rupture of membranes, existing can be punctured and can not be punctured two kinds of situations, if film can be punctured, first will
Forward sight observation camera lens is mounted on probe above and to observing inside detection duct, and whether observation detection duct is unimpeded and stabbed
Cavity situation on the inside of tear；If film cannot be punctured, detection duct is entered to along detection duct using drilling reamer
End, then continuing to be drilled toward sleeve inner to connection reinforcing bar contacts.
Since operating condition one simulates spillage situation, and suction pipe inserting paragraph end adjusted to the set below sleeve grout outlet
Cylinder inner wall flushes, and being connected between reinforcing bar and sleeve lining between the high fluidity of grouting material, after spillage there will necessarily be gap, therefore
Operating condition directlys adopt auxiliary tool in can rupture of membranes.
Forward sight observation camera lens is mounted on probe, and detection duct inner case is observed, is next step side view
The measurement of protruding into of 3 D stereo measurement camera lens is prepared, and observation discovery detection duct is straight smooth and detects the corresponding full filling in duct
Sleeve inner is starched there are cavity, detection in next step is carried out and calculates:
Referring to shown in Fig. 7 and Fig. 8, first replacement installation side view 3 D stereo measures camera lens, and probe is then protruded into rigid enclosure
Manage and guarantee that the camera lens of probe distal end protrudes from rigid casing inserting paragraph end, then protrude into detection duct reach sleeve lining with
Interstitial site between connection reinforcing bar is observed down, is obtained grouting material upper surface in sleeve by 3 D stereo measurement endoscope and is arrived
Side view 3 D stereo measures the vertical range between camera lens shooting end face, is converted to obtain grouting plumpness according to vertical range；
Using 3 D stereo measurement endoscope measurement, for full grout sleeve, plumpness of being in the milk is by sleeve upper semisection
Situation of being in the milk determines, if grouting height is less than in the middle part of sleeve, directly determines that grouting plumpness is zero, if grouting height is more than
In the middle part of sleeve, then plumpness of being in the milk=(connection rebar design anchorage length 8d- grouting defect length L)/connection rebar design anchor
Gu length 8d, d are the diameter for connecting reinforcing bar；
In full grout sleeve, the adjusting of connection reinforcing bar deviation margin is spatially located at the two sides of limit block card in the middle part of sleeve,
Rather than it is located at the both ends of barrel bore, therefore the top edge of usual situation lower sleeve grout outlet is and flushes at the top of barrel bore
's.Defect length of being in the milk is equal to the length at the top of grouting material upper surface to barrel bore, i.e., on grouting defect length L=grouting material
Vertical range h of the surface to side view 3 D stereo measurement camera lens shooting end face1+ side view 3 D stereo measurement camera lens shooting end face is arrived
The vertical range h at sleeve grout outlet center2+ sleeve pulp port radius r.
I.e. full grout sleeve grouting plumpness=(8d- (h1+h2+ r))/8d × 100%.
Pass through measurement, vertical range h of the grouting material upper surface to side view 3 D stereo measurement camera lens shooting end face1For
44.66㎜；
Side view 3 D stereo measures camera lens shooting end face to the vertical range h at sleeve grout outlet center2For 2.5 ㎜；
Therefore full grout sleeve grouting plumpness=(8 × 14- (44.66+2.5+8))/(8 × 14) × 100%=
50.8%
Wherein r is normal data known to sleeve dispatches from the factory, h2It can be obtained by actual measurement；
Chisel is carried out brokenly to test wall after survey calculation, will be prefabricated including full grout sleeve take out, it is practical true in order to obtain
Real data is splitted full grout sleeve using cutting machine, is exposed the grouting material upper surface of internal connection reinforcing bar and hardening, is passed through steel
Ruler measurement obtain full grout sleeve upper end to grouting material upper surface distance be 75 ㎜, due to full grout sleeve inner cavity push up
The distance of portion (i.e. sleeve grout outlet top edge) to full grout sleeve upper end is 20mm (being the known normal data that dispatches from the factory), because
This grouting defect length L=75-20=55mm, the complete practical grouting plumpness of grout sleeve=(8d-55)/8d=50.8%
Therefore, operating condition one is consistent with actual result using 3 D stereo measurement endoscope survey calculation result.
Operating condition two, grouting material are filled up completely sleeve cavity, and running pulp and spillage situation is not present；
Referring to the operating procedure of operating condition one, in rupture of membranes work, since grouting material fills up entire sleeve cavity, detection
The film of cell ends can not be punctured, and referring to shown in Fig. 9, entered using drilling reamer 6 along detection duct and be pressed against detection hole
Road end, then starts drilling reamer, continues to drill toward sleeve inner, until contacting with connection reinforcing bar, and carries out duct cleaning；Inspection
Gaging hole road continues forward the pilot hole promoted as drilling reamer, and it is small to pierce depth, is very easy to operation；Referring to Fig.1 shown in 0,
Forward sight observation camera lens is mounted on probe above after the completion and is observed inside duct detecting, judges to obtain inside to be really close
Real state then determines to be in the milk full.
Operating operation test is carried out by taking the full grout sleeve of certain brand GTZQ425 model as an example, by the full grouting of GTZQ425 model
Sleeve is prefabricated to simulate field condition in test wall, and the diameter for connecting reinforcing bar is 25mm；
By simulating spillage, so that grouting material plumpness declines, operated with this operating condition, operating procedure reference
The operating procedure of the full grout sleeve operating condition one of GTZQ414 model, the wherein corresponding connection steel of the full grout sleeve of GTZQ425 model
Gap width between muscle and full grout sleeve inner wall is 10mm, therefore the length of the extraction of suction pipe is also 10mm；
Using 3 D stereo measurement endoscope measurement, referring to Fig.1 shown in 1, it is vertical to side view three-dimensional to obtain grouting material upper surface
The vertical range h of bulk measurement camera lens shooting end face1For 76.35 ㎜；
It is 2.5 ㎜ that side view 3 D stereo, which measures the vertical range h2 that camera lens shoots end face to sleeve grout outlet center,；
Therefore full grout sleeve grouting plumpness=(8 × 25- (76.35+2.5+8))/(8 × 25) × 100%=
56.6%
Then also the full grout sleeve of GTZQ425 model is carried out by the way of broken chisel test wall and incision sleeve practical
DATA REASONING, obtain full grout sleeve upper end to grouting material upper surface distance be 109mm, therefore be in the milk defect length L=
109-20=89mm
The practical grouting plumpness of full grout sleeve=(8d-89)/8d=55.5%
Grouting plumpness error ε=| 56.6-55.5 |=1.1%
Endoscope survey calculation result is measured using 3 D stereo and actual result is almost the same.
Operating operation test is carried out by taking half grout sleeve of certain brand GT14 model as an example, half grout sleeve of GT14 model is pre-
System simulates field condition in test wall, and the diameter for connecting reinforcing bar is 14mm；
Operating condition one, due in half grout sleeve 110, probably due to component production or in-site installation deviation cause lower section to connect
Reinforcing bar is connect there are certain deviation, when prefabricated part hanging in place after, connect the position between reinforcing bar and half grout sleeve inner wall
It can not precisely determine, the half grout sleeve simulation connection complete deviation of reinforcing bar of this GT14 model close to sleeve grout outlet and connects steel
Muscle insertion depth be more than sleeve grout outlet center the case where and there are spillages；
Its operating procedure is referring to the operating procedure of the full grout sleeve operating condition one of GTZQ414 model, wherein GT14 model
The operating procedure of the full grout sleeve operating condition one of half grout sleeve operating procedure and GTZQ414 model the difference is that:
1, half grout sleeve of GT14 model exchanges the method that whole group closes plug inner suction pipe position are as follows: first determines whether connection reinforcing bar
Insertion depth whether reach the position height of suction pipe；Due to this connection off-position of steel reinforcing bar and close to sleeve grout outlet, connect
Connecing reinforcing bar insertion depth is the position height for reaching suction pipe, and connects reinforcing bar there are deviation situation, thus connect reinforcing bar with
Gap between half sleeve lining can not determine, for the insertion end of suction pipe to be adjusted in place, determine test wall according to design drawing
Then surface grout outlet subtracts pulp orifice throat length according to the total length of suction pipe to the pulp orifice throat length between sleeve grout outlet
The length that suction pipe exposes test wall surface is obtained, the length that adjustment suction pipe exposes test wall surface is adjusted in place suction pipe.
2, it in rupture of membranes, when that can not poke, then needs to drill using drilling reamer, drilling depth 7-10mm, drilling terminates
Duct measurement is carried out afterwards；
And it can not carry camera lens due to will lead to probe after connection off-position of steel reinforcing bar and directly stretched from the center of sleeve grout outlet
Out, it is therefore desirable to which the bending function of using probe can be by camera lens from connection reinforcing bar and sleeve by the lateral bending of probe
The inside of half grout sleeve is protruded into crack between grout outlet in the horizontal direction, to be observed and measured, 2 He referring to Fig.1
Shown in Figure 13.
Using 3 D stereo measurement endoscope measurement, for half grout sleeve, with the calculating of following formula, half grout sleeve is filled
Slurry plumpness=actual measurement grouting height h/ connection reinforcing bar design anchorage length 8d, d are the diameter for connecting reinforcing bar；Wherein actual measurement fills
The sleeve grout outlet center height h=is starched to (the grouting material upper surface to side view 3 D stereo measurement camera lens height b- of sleeve bottom
Shoot the vertical range h of end face1+ side view 3 D stereo measures camera lens shooting end face to the vertical range at sleeve grout outlet center
h2)；That is the grouting plumpness of half grout sleeve=(b- (h1+h2))/8d × 100%.
Pass through measurement, vertical range h of the grouting material upper surface to side view 3 D stereo measurement camera lens shooting end face1For
10.98mm；
Side view 3 D stereo measures camera lens shooting end face to the vertical range h at sleeve grout outlet center2For 2.5 ㎜；
Therefore half grout sleeve grouting plumpness=(119- (10.98+2.5))/(8 × 14) × 100%=94.2%；
Actual number also then is carried out to half grout sleeve of GT14 model by the way of broken chisel test wall and incision sleeve
According to measurement, obtaining half grout sleeve upper end to the distance of grouting material upper surface is 51mm, therefore actual grouting height h=is partly
Distance=156-51=105mm of-half grout sleeve upper end of grout sleeve total length to grouting material upper surface
The practical grouting plumpness=105/8d=93.8% of half grout sleeve
Plumpness error ε=| 94.2-93.8 |=0.4%
The half grout sleeve simulation of operating condition two, this GT14 model connects reinforcing bar and meets insertion depth requirement, but connects reinforcing bar
Insertion depth be not up to the position height of suction pipe, referring to Fig.1 shown in 4；
At this time when adjusting suction pipe position, needs the inner cavity that suction pipe is continued into half grout sleeve and go out until reaching sleeve
The half grout sleeve inner wall for starching mouth opposite, then extracts suction pipe outward, and the distance of extraction is equal to the internal diameter of half grout sleeve, makes
Suction pipe inserting paragraph end is obtained to flush with the sleeve lining below sleeve grout outlet.
It is above-mentioned when double of grout sleeve is detected, since practical suction pipe is installed by worker, there are suction pipe insertions
Depth situation not up to standard, referring to Fig.1 shown in 5, distance is more than 10mm between suction pipe inserting paragraph end and sleeve grout outlet, to lead
It causes in rupture of membranes drilling, although piercing depth reaches 7-10mm, the detection duct after drilling is appointed in pulp duct,
Referring to Fig.1 shown in 6, even if stream of slurry in sleeve is empty, in the pulp duct of horizontal direction still can there are grouting materials, therefore can
It can cause to judge by accident；To prevent from judging by accident, after drilling, need to carry out pore size measurement, judge detect duct end whether
Positioned at sleeve inner, such as detects duct and be not up to sleeve inner, then continue drilling to sleeve inner；To be drilled into the inspection of sleeve inner
Gaging hole is detected based on road.
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 (11)
- The plumpness detection method 1. a kind of sleeve based on endoscope three-dimensional dimension measuring technique is in the milk, which is characterized in that including Rubber stopper, suction pipe, rigid casing and 3 D stereo measure endoscope；Centre bore is provided in the middle part of the rubber stopper；The suction pipe outer surface is coated with film, and the suction pipe for being coated with film can be threaded through rubber stopper by centre bore It is interior；The 3 D stereo measurement endoscope includes sequentially connected endoscope host, connection hose, probe and camera lens, the mirror Head includes that forward sight observation camera lens and side view 3 D stereo measure camera lens；Detection method includes the following steps for it:A. the suction pipe for being coated with film is threaded through in rubber stopper, forms combination plug；B. grouting construction is carried out to the sleeve in prefabricated components, after there is slurry outflow in pulp duct, combination is filled in from prefabricated structure Part surface grout outlet is filled in pulp duct and is blocked；C. after the completion of sleeves all in single prefabricated components grouting, start the position of adjustment combination plug inner suction pipe, by suction pipe Inserting paragraph end adjusts to the sleeve lining below sleeve grout outlet and flushes, so that suction pipe is in the built-in mould pore-forming in pulp duct；D. after grouting material hardening, first rubber stopper is extracted, then suction pipe is extracted, the film being coated on suction pipe is left on correspondence Pulp duct in and formed detection duct；E. it is protruded into detection duct with auxiliary tool and rupture of membranes work is carried out to the film of detection cell ends；If film can be punctured, forward sight observation camera lens is first mounted on probe above and is observed inside duct detecting, Observation is punctured the cavity situation of place inside；If film cannot be punctured, detection cell ends are entered to along detection duct using drilling reamer, are then continued past Sleeve inner drilling, and carries out duct cleaning, after the completion by forward sight observation camera lens be mounted on probe it is upper and to detection duct inside It is observed, judges whether closely knit, determine to be in the milk if closely knit full, carried out if leakiness in next step；F. replacement installation side view 3 D stereo measures camera lens, and probe is protruded into rigid casing and guarantees that side view 3 D stereo measures mirror Head stretch out rigid casing inserting paragraph end, then by rigid casing protrude into detection duct reach sleeve lining with connect reinforcing bar it Between interstitial site observe down, endoscope measured by 3 D stereo obtain in sleeve grouting material upper surface and stood to side view three-dimensional Bulk measurement camera lens shoots the vertical range between end face, is converted to obtain grouting plumpness according to vertical range；When sleeve is half grout sleeve, then the design anchor of half grout sleeve grouting plumpness=actual measurement grouting height h/ connection reinforcing bar Gu length 8d, d are the diameter for connecting reinforcing bar；Wherein actual measurement grouting height h=sleeve grout outlet center to sleeve bottom height b- (vertical range h of the grouting material upper surface to side view 3 D stereo measurement camera lens shooting end face1+ side view 3 D stereo measures camera lens Distance h of the shooting end face to sleeve grout outlet center2)；That is grouting plumpness=(b-(h of half grout sleeve1+h2))/8d × 100%；When sleeve is full grout sleeve, grouting plumpness is determined by the grouting situation of sleeve upper semisection, if grouting height does not surpass It crosses in the middle part of sleeve, then directly determines that grouting plumpness is zero, if grouting height is more than plumpness of being in the milk=(connection in the middle part of sleeve Rebar design anchorage length 8d- grouting defect length L)/rebar design anchorage length 8d is connected, d is the diameter for connecting reinforcing bar；Its Vertical range h of the middle grouting defect length L=grouting material upper surface to side view 3 D stereo measurement camera lens shooting end face1+ side view three Dimension measurement in space camera lens shoots end face to the vertical range h at sleeve grout outlet center2+ sleeve pulp port radius r；I.e. full grout sleeve grouting plumpness=(8d-(h1+h2+ r))/8d × 100%.
- The plumpness detection side 2. a kind of sleeve based on endoscope three-dimensional dimension measuring technique as described in claim 1 is in the milk Method, which is characterized in that the film is located at straw end and is provided with tearable portion.
- The plumpness detection side 3. a kind of sleeve based on endoscope three-dimensional dimension measuring technique as described in claim 1 is in the milk Method, which is characterized in that the sleeve is full grout sleeve, and the method that whole group closes plug inner suction pipe position is exchanged in the step c are as follows: Suction pipe is continued into until the inserting paragraph end of suction pipe resists connection rebar surface, and in the friendship of rubber stopper outboard end and suction pipe Mark is carried out at boundary, according to the gap width between connection reinforcing bar and full grout sleeve inner wall, suction pipe is extracted outward, the length of extraction Degree is equal to the gap width between connection reinforcing bar and full grout sleeve inner wall, so that under the inserting paragraph end of suction pipe and sleeve grout outlet The sleeve lining of side flushes.
- The plumpness detection side 4. a kind of sleeve based on endoscope three-dimensional dimension measuring technique as described in claim 1 is in the milk Method, which is characterized in that the sleeve is half grout sleeve, and the method that whole group closes plug inner suction pipe position is exchanged in the step c are as follows: First determine whether the insertion depth of connection reinforcing bar reaches the position height of suction pipe；When the position height for not reaching suction pipe, then Suction pipe is continued into the inner cavity of half grout sleeve until reaching the half grout sleeve inner wall on sleeve grout outlet opposite, then will be inhaled Pipe is extracted outward, and the distance of extraction is equal to the internal diameter of half grout sleeve, so that under the inserting paragraph end of suction pipe and sleeve grout outlet The sleeve lining of side flushes；When the position height for reaching suction pipe, determine prefabricated components surface grout outlet to set according to design drawing Then pulp orifice throat length between cylinder grout outlet subtracts pulp orifice throat length according to the total length of suction pipe and obtains suction pipe exposing in advance The length of component surface processed, the length that adjustment suction pipe exposes prefabricated components surface are adjusted in place suction pipe.
- The plumpness detection side 5. a kind of sleeve based on endoscope three-dimensional dimension measuring technique as described in claim 1 is in the milk Method, which is characterized in that in step c after suction pipe position adjustment, trimming is exposed at the part on prefabricated components surface.
- The plumpness detection side 6. a kind of sleeve based on endoscope three-dimensional dimension measuring technique as described in claim 1 is in the milk Method, which is characterized in that in step e, if film cannot be punctured and sleeve is half grout sleeve, piercing depth is 7- 10mm；If film cannot be punctured and sleeve is full grout sleeve, drilling is contacted to connection reinforcing bar.
- The plumpness detection side 7. a kind of sleeve based on endoscope three-dimensional dimension measuring technique as claimed in claim 6 is in the milk Method, which is characterized in that sleeve is half grout sleeve, when drilling reamer pierces depth arrival 7-10mm but does not contact yet with connection reinforcing bar When, after drilling, pore size measurement is carried out, judges whether the end for detecting duct is located at sleeve inner, such as detects duct Not up to sleeve inner then continues drilling to sleeve inner.
- The plumpness detection side 8. a kind of sleeve based on endoscope three-dimensional dimension measuring technique as described in claim 1 is in the milk Method, which is characterized in that in step e, if film cannot be punctured and sleeve be half grout sleeve, drilling to connect reinforcing bar Contact；If film cannot be punctured and sleeve is full grout sleeve, drilling is contacted to connection reinforcing bar.
- The plumpness detection side 9. a kind of sleeve based on endoscope three-dimensional dimension measuring technique as described in claim 1 is in the milk Method, which is characterized in that the diameter of the connection hose, probe and camera lens is not more than 4mm.
- The plumpness detection side 10. a kind of sleeve based on endoscope three-dimensional dimension measuring technique as described in claim 1 is in the milk Method, which is characterized in that in the step e, before using auxiliary tool, first trimming protrusion is detecting the film outside duct.
- The plumpness detection side 11. a kind of sleeve based on endoscope three-dimensional dimension measuring technique as described in claim 1 is in the milk The outer diameter of method, the rigid casing and drilling reamer is respectively less than the outer diameter of suction pipe.
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