CN104141388B - A kind of prestressed pore passage observation and dredging method - Google Patents
A kind of prestressed pore passage observation and dredging method Download PDFInfo
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- CN104141388B CN104141388B CN201310163891.8A CN201310163891A CN104141388B CN 104141388 B CN104141388 B CN 104141388B CN 201310163891 A CN201310163891 A CN 201310163891A CN 104141388 B CN104141388 B CN 104141388B
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- duct
- steel strand
- dredging
- picture pick
- strand wires
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Abstract
The invention belongs to nuclear power station prestressed pore passage dredging technical field, and in particular to a kind of prestressed pore passage observation and dredging method；Solved in prestressed pore passage because entering concrete it is an object of the present invention to provide one kind（Mortar）The prestressed pore passage observation and dredging method combed on the premise of existing structure are not destroyed after blocking；A kind of prestressed pore passage observation of the present invention and dredging method, comprise the following steps：Observe in duct；Prepare before the dredging of duct；Duct is dredged；The features such as dredging method of the present invention has efficiency high, do not damage existing structure, can be widely applied to concrete（Mortar）Block and linear pattern of the channel diameter more than 80mm or ring-like duct comb；Observational technique of the present invention has the advantages that easy to operate, reflection duct directly perceived situation, video data can be preserved and put on record.
Description
Technical field
The invention belongs to nuclear power station prestressed pore passage dredging technical field, and in particular to a kind of prestressed pore passage is observed and dredged
Circulation method.
Background technology
Current post-tensioned prestressed law technology is widely used in all kinds of heavy constructions such as nuclear power station, bridge and gymnasium.Afterwards
Open method prestressing force pore-forming material wall thickness general between 0.6~3mm, easily occur in work progress damaged（Welding embedded element mistiming
Weldering）, due to easily ignored when damaged face is compared with minor inspection, enter slurry blocking duct probability larger.
Domestic treatment prestressed pore passage generally there are two problems because entering concrete stopping state at present：
One is unclear to duct inside stopping state, the treatment of the region between the heart and the diaphragm mesh causes secondary destruction.
The second is because aperture is small and how length is processed greatly on the premise of not destroyed to existing structure.
The content of the invention
It is not enough that the technical problems to be solved by the invention are directed to prior art, there is provided one kind solve prestressed pore passage because
Enter the prestressed pore passage observation and dredging method combed on the premise of not destroying existing structure after concrete is blocked.
The technical solution adopted in the present invention is：
A kind of prestressed pore passage observation and dredging method, comprise the following steps
（1.1）Observe in duct；
（1.2）Prepare before the dredging of duct；
（1.3）Duct is dredged.
Described duct observation is comprised the following steps
（2.1）The all valves on duct to be seen are opened, the dust and other impurities in duct is blown out using air compressor machine；
（2.2）By picture pick-up device together with the firm colligation of USB extended lines on steel strand wires, picture pick-up device should lead with steel strand wires
The distance of 40-50cm is kept to head, picture pick-up device and USB extended line protruding parts is wrapped up using cotton yarn, adhesive waterproof tape；
（2.3）The another end of USB extended lines is connected with computer, starts video record software in computer, test picture pick-up device
After recording of finding a view is normal, the steel strand wires with picture pick-up device are determined from the duct port for blocking or destroy close to position from early stage
Send into duct to be seen；
（2.4）Picture of the floor manager personnel in computer screen assigns the move of steel strand wires to operating personnel,
At a slow speed near until steel strand wires guide head arrives at tamper or destruction position；
（2.5）After determining tamper or destruction position, processing equipment is guided by picture pick-up device, reach effectively treatment position
Put, exit picture pick-up device；
（2.6）Duct is cleared up using air compressor machine after the completion for the treatment of, and sends into picture pick-up device observation duct foreign metapore again
Road treatment is completed.
A steel strand wires are penetrated in duct using strand pulling machine, quarter is marked on the steel strand wires for exposing duct proximal outlet
Degree, is fixed on vibrator is firm on the steel strand wires of proximal end.
Described steel strand wires length is not less than orifice throat length, proximal length, stemming length sum；Described vibrator length
More than proximal length, stemming length sum.
Described duct dredging step is comprised the following steps：
（3.1）Vibrator is pulled at blocking with steel strand wires, open vibrator and forward pulling vibrator make its slow before
Enter；
（3.2）Vibrator is exited as vibrator advance 10cm or after having vibrated 15~20min；
（3.3）The chip in duct is blown out using air compressor machine, and reuses prestressed pore passage observational technique to combing
Situation confirms；
（3.4）So return multiple until duct combs completion.
The beneficial effects of the invention are as follows：
1. the features such as combing method there is efficiency high, existing structure is not damaged, concrete can be widely applied to（Mortar）
Block and linear pattern of the channel diameter more than 80mm or ring-like duct comb.
2. this observational technique be using steel strand wires guiding picture pick-up device enter duct to be seen, be processing scheme selection and
Guiding handling implement reaches effective processing position and provides visual foundation.The method have easy to operate, reflection duct directly perceived situation,
Video data can preserve the advantages of putting on record.In the construction projects such as nuclear power station, the bridge that can be widely applied to have pre-stress construction.
Brief description of the drawings
Fig. 1 is vibrator dredging problem duct schematic diagram；
Fig. 2 is picture pick-up device observation duct schematic diagram.
Specific embodiment
A kind of prestressed pore passage observation for providing the present invention with reference to the accompanying drawings and examples is situated between with dredging method
Continue：
As shown in figure 1, a kind of prestressed pore passage observation and dredging method, comprise the following steps
（1.1）Observe in duct；
（1.2）Prepare before the dredging of duct；
（1.3）Duct is dredged.
Described duct observation is comprised the following steps
（2.1）The all valves on duct to be seen are opened, the dust and other impurities in duct is blown out using air compressor machine；
（2.2）By picture pick-up device together with the firm colligation of USB extended lines on steel strand wires, picture pick-up device should lead with steel strand wires
The distance of 40-50cm is kept to head, picture pick-up device and USB extended line protruding parts is wrapped up using cotton yarn, adhesive waterproof tape；
（2.3）The another end of USB extended lines is connected with computer, starts video record software in computer, test picture pick-up device
After recording of finding a view is normal, the steel strand wires with picture pick-up device are determined from the duct port for blocking or destroy close to position from early stage
Send into duct to be seen；
（2.4）Picture of the floor manager personnel in computer screen assigns the move of steel strand wires to operating personnel,
At a slow speed near until steel strand wires guide head arrives at tamper or destruction position；
（2.5）After determining tamper or destruction position, processing equipment is guided by picture pick-up device, reach effectively treatment position
Put, exit picture pick-up device；
（2.6）Duct is cleared up using air compressor machine after the completion for the treatment of, and sends into picture pick-up device observation duct foreign metapore again
Road treatment is completed.
A steel strand wires are penetrated in duct using strand pulling machine, quarter is marked on the steel strand wires for exposing duct proximal outlet
Degree, is fixed on vibrator is firm on the steel strand wires of proximal end.
Described steel strand wires length is not less than orifice throat length, proximal length, stemming length sum；Described vibrator length
More than proximal length, stemming length sum.
Described duct dredging step is comprised the following steps：
（3.1）Vibrator is pulled at blocking with steel strand wires, open vibrator and forward pulling vibrator make its slow before
Enter；
（3.2）Vibrator is exited as vibrator advance 10cm or after having vibrated 15~20min；
（3.3）The chip in duct is blown out using air compressor machine, and reuses prestressed pore passage observational technique to combing
Situation confirms；
（3.4）So return multiple until duct combs completion.
It is first to find out the following two kinds of situations in duct inside using prestressed pore passage observational technique that this duct combs technology, its
One：Whether be at least can be by a steel strand wires and because of concrete（Mortar）The duct of blocking；Secondly：It is clearly nearer at blocking
Duct outlet（Hereinafter referred to as proximal outlet）And stemming length.Vibrator is sent into using steel strand wires again and combed at blocking,
Duct intraclast is blown out using air compressor machine finally.
This duct combs the application of method, duct can be combed on the premise of original structure is not destroyed.Operation
Schematic diagram is as shown in Figure 1.
1）Situation observation in duct
Picture pick-up device is sent into duct by steel strand wires using prestressed pore passage observational technique, observes duct plugging reason
And measure the distance at the blocking of duct away from duct outlet.
2）Duct comb before preparation
A steel strand wires are penetrated in duct using strand pulling machine, its length cannot be less than orifice throat length, proximal length, blocking
Length sum（Such as Fig. 1）.Scale is marked on the steel strand wires for exposing duct proximal outlet, a length is long slightly larger than near-end
Degree, the vibrator of stemming length sum firm are fixed on the steel strand wires of proximal end.
3）Duct combs
Vibrator is pulled at blocking with steel strand wires, is opened vibrator and pulling vibrator forward is advanced slowly it.When
Vibrator advance 10cm exits vibrator after having vibrated 15~20min, is blown out the chip in duct using air compressor machine, and
Reuse prestressed pore passage observational technique and confirm to combing situation, so return multiple until duct combs completion.
This observational technique is mainly steel strand wires guiding picture pick-up device and enters blocking duct, arrives at observation position and is observed.
Before the observation of picture pick-up device access aperture road, should tentatively be judged being blocked in duct or destroying position first with steel strand wires are scrapped,
It is that later stage picture pick-up device reduces workload into observation clearly to be exported from the duct for blocking or destroying close to position.
The application of this duct observational technique, can accurately observe duct block or destroy the reason for, calculate blocking or
The position of destruction, and store filing.Operation chart is as shown in Figure 1.
1) preparation before observing
Picture pick-up device for observation, the computer for having installed recorded video software, length exceed duct girth to be seen
Steel strand wires, adhesive waterproof tape and the strapping that the USB extended lines of half, length exceed girth half in duct to be seen are some, and
Training qualified management, operating personnel.
Blocked or destruction position for duct can be calculated, USB extended lines can made every 1-2m adhesive waterproof tape colligations
Mark.
2) process control when observing
Because domestic pre-stress construction lashing machinery generally penetrates speed, may be to picture pick-up device and USB extended lines
Cause to damage, therefore take and be manually fed into steel strand wires.
In operating process by confiding a technological secret in clearly commanding advance, retrogressing, rotation etc. are assigned according to camera shooting and video
Operation password, operating personnel must strictly observe.
Picture pick-up device into firm must being fixed on steel strand wires before duct, picture pick-up device and USB extended line protuberances
Position is properly wrapped up using things such as cotton yarn, adhesive waterproof tapes, prevents from being lost or picture pick-up device dropping in duct.
Claims (1)
1. a kind of prestressed pore passage is observed and dredging method, it is characterised in that：Comprise the following steps
(1) duct observation；
Described duct observation is comprised the following steps
(1.1) all valves on duct to be seen are opened, the dust debris in duct is blown out using air compressor machine；
(1.2) by picture pick-up device together with the firm colligation of USB extended lines on steel strand wires, picture pick-up device should be with steel strand wires guide head
The distance of 40-50cm is kept, picture pick-up device and USB extended line protruding parts is wrapped up using cotton yarn, adhesive waterproof tape；
(1.3) other end of USB extended lines is connected with computer, starts video record software in computer, test picture pick-up device takes
After scape is recorded normally, the steel strand wires with picture pick-up device are determined from the duct port for blocking or destroy close to position from early stage
Send into duct to be seen；
(1.4) picture of the floor manager personnel in computer screen assigns the move of steel strand wires to operating personnel, at a slow speed
Near until steel strand wires guide head arrives at tamper or destruction position；
(1.5) after determining tamper or destruction position, processing equipment is guided by picture pick-up device, reaches effective processing position, moved back
Go out picture pick-up device；
(2) prepare before the dredging of duct；
(3) duct dredging；
The duct dredging step is comprised the following steps：
(3.1) vibrator is pulled at blocking with steel strand wires, opens vibrator and pulling vibrator forward is advanced slowly it；
(3.2) vibrator is exited as vibrator advance 10cm or after having vibrated 15~20min；
(3.3) chip in duct is blown out using air compressor machine, and reuses prestressed pore passage observational technique to dredging situation
Confirm；
(3.4) so repeatedly until completion is dredged in duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310163891.8A CN104141388B (en) | 2013-05-07 | 2013-05-07 | A kind of prestressed pore passage observation and dredging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310163891.8A CN104141388B (en) | 2013-05-07 | 2013-05-07 | A kind of prestressed pore passage observation and dredging method |
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| Publication Number | Publication Date |
|---|---|
| CN104141388A CN104141388A (en) | 2014-11-12 |
| CN104141388B true CN104141388B (en) | 2017-06-06 |
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| CN201310163891.8A Active CN104141388B (en) | 2013-05-07 | 2013-05-07 | A kind of prestressed pore passage observation and dredging method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2472609A1 (en) * | 2004-06-28 | 2005-12-28 | Richard Gregoire | Pipe clearing system and device |
| CN102645244A (en) * | 2012-04-17 | 2012-08-22 | 中铁十三局集团第一工程有限公司 | Prestressed duct detector |
| JP2012217987A (en) * | 2011-04-12 | 2012-11-12 | Shinka Sangyo Kk | Ultrasonic cleaning apparatus |
| CN102794284A (en) * | 2012-08-10 | 2012-11-28 | 中铁隧道集团有限公司 | Dredge device of annular embedded corrugated pipe duct and dredge method thereof |
-
2013
- 2013-05-07 CN CN201310163891.8A patent/CN104141388B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2472609A1 (en) * | 2004-06-28 | 2005-12-28 | Richard Gregoire | Pipe clearing system and device |
| JP2012217987A (en) * | 2011-04-12 | 2012-11-12 | Shinka Sangyo Kk | Ultrasonic cleaning apparatus |
| CN102645244A (en) * | 2012-04-17 | 2012-08-22 | 中铁十三局集团第一工程有限公司 | Prestressed duct detector |
| CN102794284A (en) * | 2012-08-10 | 2012-11-28 | 中铁隧道集团有限公司 | Dredge device of annular embedded corrugated pipe duct and dredge method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104141388A (en) | 2014-11-12 |
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