CN102304894B - Method and device for controlling grouting quality of bridge prestressing force pore path - Google Patents
Method and device for controlling grouting quality of bridge prestressing force pore path Download PDFInfo
- Publication number
- CN102304894B CN102304894B CN201110182793.XA CN201110182793A CN102304894B CN 102304894 B CN102304894 B CN 102304894B CN 201110182793 A CN201110182793 A CN 201110182793A CN 102304894 B CN102304894 B CN 102304894B
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- Prior art keywords
- grouting
- slurry
- electrically connected
- observing
- communication module
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Abstract
The invention discloses a method and a device for controlling the grouting quality of a bridge prestressing force pore path. The method comprises the following steps: detecting accumulated flow to judge thin slurry filling pressurization time tk; and then, carrying out grouting construction operation by an intelligent grouting control meter of a touch prestressing force pore path. The device comprises a grouting control console and an on-site grouting measurement and control box, wherein the on-site grouting measurement and control box collects and transmits on-site grouting flow and pressure data to the grouting control console; the grouting control console processes the data and sends a control order to the on-site grouting measurement and control box according to the grouting process requirement to control the quality of the prestressing force pore path grouting; and the on-site grouting measurement and control box receives the order to switch on and off a grout pump and a motor-driven valve. According to the method, the bridge prestressing force pore path grouting construction is monitored in the whole journey to provide a guarantee for grouting quality, thereby effectively solving the problem that the grouting quality can not be guaranteed under the condition of manual grouting in the prior art. Meanwhile, the device is in the module integration structure, has the advantages of small volume, strong environment adaptiveness and wide application, is convenient to install on site, saves manpower and improves work efficiency.
Description
Technical field
The present invention relates to bridge prestress pore channel grouting construction, specially refer to a kind of bridge prestress pore channel grouting quality control method and device thereof.
Background technology
Prior art bridge prestress pore channel grouting construction is to rely on on-site construction operations personnel with visually observing, manual operations, enter the grouting of end operation mudjack in grouting duct, say end at grout hole and close angle valve screen slurry, purely rely on constructing operation specification, sense of responsibility and professional personal integrity to control construction quality, be therefore difficult to ensure construction quality, easily there is mud jacking leakiness situation, occur hole, excreting water phenomenon, causes engineering to have potential safety hazard.
Summary of the invention
The object of the invention is to overcome the above-mentioned drawback existing in prior art bridge prestress pore channel grouting construction, and a kind of grouting quality control method and device thereof that can ensure construction quality is provided.
The technical solution that the present invention proposes is: a kind of bridge prestress pore channel grouting quality control method and device thereof, the method is to enter slurry end and slurry output end in prestressed grouting duct flow and pressure transmitter are all set, and is shielded and is starched the pressurize t zero hour by judgement
kdetermine grouting time T
0ensure thus prestressed pore passage grouting quality, judge the screen slurry pressurize t zero hour
kcondition be: enter slurry end A end flow meter at grouting time T
0interior integrated flow
equal grout hole deferent and hold Q
0,
and enter, slurry is held and slurry output end pressure size is determined by construction technology regulation,
Wherein T
0=t
k-t
p;
T
pfor starting the moment of being in the milk, now start mudjack work;
T
kbe the screen slurry pressurize zero hour, now close slurry output end B end motor operated valve;
Q
0＝L(S
1-S
2)+(L
3+L
4)S
0；
In formula: L is bridge bellows length, be also steel strand length in bellows;
S
1for bridge bellows cross-sectional area;
S
2for the total cross-sectional area of steel strand;
L
3for entering slurry end sebific duct length;
L
4for slurry output end sebific duct length;
S
0for sebific duct cross-sectional area.
This device is a kind of touch-screen type prestressed pore passage intelligence grouting controller, comprises mudjack, it is characterized in that by grouting console, enters to starch observing and controlling case, pulp observing and controlling case forms; Grouting console is touch-screen type grouting console, it is electrically connected respectively graphic control panel display 2, mobile communication module 3, the first wireless communication module the 4, the 1 data acquisition control port 5, mini-printer 6, USB interface 7, SD card memory cell 8, debug serial port 9 by embedded main board 1, and above-mentioned device is powered by multi-channel switch power 10.
Entering to starch observing and controlling case is electrically connected by the first control panel MCU11 Fen San road: a road is electrically connected with the second wireless communication module the 13, the 2 485 data acquisition control port one 4 respectively via the first photoelectricity isolated location 12; Another road via the second photoelectricity isolated location 15, the first auxiliary reclay 16, the first contactor 17, is electrically connected to mudjack 18 successively; Third Road is successively via being electrically connected with first flow transmitter 21, the first pressure transmitter 22 respectively after an AD converting unit 19, the 3rd photoelectricity isolated location 20 again.
Pulp observing and controlling case is electrically connected by the second control panel MCU23 Fen San road: a road is electrically connected with the 3rd wireless communication module the 25, the 3 485 data acquisition control port 26 respectively via the 4th photoelectricity isolated location 24; Another road via the 5th photoelectricity isolated location 27, the second auxiliary reclay 28, the second contactor 29, is electrically connected to motor operated valve 30 successively; Third Road is successively via being electrically connected with second transmitter 33, the second pressure transmitter 34 respectively after the 2nd AD converting unit 31, the 6th photoelectricity isolated location 32 again.
Grouting console by the first wireless communication module 4 respectively with enter to starch the second wireless communication module 13 of observing and controlling case and the 3rd wireless communication module 25 of pulp observing and controlling case is electrically connected by wireless mode; Be in the milk in addition console by the one 485 data acquisition control port 5 respectively with enter to starch the 2 485 data acquisition control port one 4 of observing and controlling case and the 3 485 data acquisition control port 26 of pulp observing and controlling case is electrically connected by wired mode.
Advantage of the present invention is:
1. flow pressure parameter that can on-the-spot the real time measure grouting process, supervises grouting quality situation, determines exactly and the grouting dwell time ensures grouting quality with this.
2. grouting console of the present invention and observing and controlling case adopt Modularized integral box formula structure, and on-the-spot installation and working service are convenient.
3. the present invention shows by touch-screen on embedded platform basis, and data acquisition and grouting are controlled, and save manpower, greatly improve effect, and alleviate constructor's labour intensity.
4. the present invention can inquire about, transfer, preserves, prints monitored data and automatic formation curve.
5. the present invention can adopt wired or wireless mode to carry out exchanges data, can also carry out remote data transmission, adapts to Long-distance Control demand.
6. the present invention adopts flow, pressure transmitter, has that certainty of measurement is high, strong interference immunity, not affected by operating mode and artificial disturbance.
7. the present invention is not only applicable to bridge prestress pore channel grouting, but also can be for other grouting construction occasions.
Brief description of the drawings
Fig. 1 is grouting construction schematic diagram of the present invention.
Fig. 2 is grouting of the present invention and screen slurry pressurize Construction State sequential chart.
Fig. 3 is grouting console structure chart of the present invention.
Fig. 4 is the observing and controlling box structure figure that enters to starch of the present invention.
Fig. 5 is pulp observing and controlling box structure figure of the present invention.
detailed description of the invention
The present invention further illustrates as follows in conjunction with specific embodiments referring to accompanying drawing:
Bridge prestress pore channel grouting construction schematic diagram is referring to accompanying drawing 1, a kind of bridge prestress pore channel grouting quality control method, and the method is to enter slurry end A and slurry output end B is provided with flow and pressure transmitter at prestressed pore passage, judges to shield starch pressurize moment t by measurements
kdetermine according to this grouting time T
0thereby, ensure prestressed pore passage grouting quality.
Bridge prestress pore channel grouting and screen slurry pressurize Construction State sequential chart, referring to accompanying drawing 2, t in figure
pfor being in the milk the zero hour, now open into slurry end A side pressure stock pump, t
kfor the screen slurry pressurize moment, this moment is closed slurry output end B end motor operated valve, t
pto t
kthe time period in moment is grouting time T
0, i.e. T
0=t
k-t
p; t
0for the pressurize of screen slurry stops the moment, this moment closes into slurry end A side pressure stock pump.T
kto t
0the time period in moment is time T
1, i.e. screen slurry dwell time T
1=t
0-t
k, screen slurry dwell time T
1job specfication by concrete bridge engineering is determined.
Screen slurry pressurize moment t
kbe the factor that grouting construction quality is had significant impact in bridge prestress pore channel grouting construction, prior art is that the concentration by manually visually observing cement paste is determined screen slurry pressurize moment t by rule of thumb
k, being therefore subject to interference from human factor and error is very large, grouting quality is difficult to ensure; To provide to judge screen slurry pressurize moment t to the scheme of this solution
kcondition, this condition is at grouting time T into slurry end A end flow meter
0interior integrated flow
equal grout hole deferent and hold Q
0,
Wherein T
0=t
k-t
p;
T
pfor starting the moment of being in the milk, now start mudjack work;
T
kbe the screen slurry pressurize zero hour, now close slurry output end B end motor operated valve;
Q
tfor t moment flow;
Δ t is carved into the time interval between next adjacent traffic sampling moment while being t;
Q
0＝L(S
1-S
2)+(L
3+L
4)S
0；
In formula: L is bridge bellows length, be also steel strand length in bellows;
S
1for bridge bellows cross-sectional area;
S
2for the total cross-sectional area of steel strand;
L
3for entering slurry end sebific duct length;
L
4for slurry output end sebific duct length;
S
0for sebific duct cross-sectional area.
Detect moment t
kgrouting construction is exercised supervision and control by touch-screen type prestressed pore passage intelligence grouting controller of the present invention in this moment simultaneously, carry out relevant grouting construction and screen slurry pressurize operation, guarantee bridge duct grouting construction quality with this, Δ t gets 1 second in the present embodiment.
A kind of touch-screen type prestressed pore passage intelligence grouting controller, includes mudjack, its feature by the console that is in the milk, enter to starch observing and controlling case, pulp observing and controlling case three parts form.Grouting console structure forms referring to accompanying drawing 3, it is electrically connected respectively graphic control panel display 2, mobile communication module 3, the first wireless communication module the 4, the 1 data acquisition control port 5, mini-printer 6, USB interface 7, SD card memory cell 8, debug serial port 9 by embedded main board 1, and above-mentioned device is powered by multi-channel switch power 10.Its embedded main board 1 adopts the S3C2440A of Samsung embedded chip, graphic control panel display 2 adopts Taiwan group to create 8 cun of very color industrial touch-screens, mobile communication module 3 adopts the EM310 of Huawei Company type GPRS communication module, and the first wireless communication module 4 adopts Wuhan Feng He science and technology 433MHZ wireless transmission module.Enter to starch observing and controlling box structure and form referring to accompanying drawing 4, it is electrically connected by the first control panel MCU11 Fen San road: a road is electrically connected with the second wireless communication module the 13, the 2 485 data acquisition control port one 4 respectively via the first photoelectricity isolated location 12; Another road via the second photoelectricity isolated location 15, the first auxiliary reclay 16, the first contactor 17, is electrically connected to mudjack 18 successively; Third Road is successively via being electrically connected with first flow transmitter 21, the first pressure transmitter 22 respectively after an AD converting unit 19, the 3rd photoelectricity isolated location 20 again.Pulp observing and controlling box structure forms referring to accompanying drawing 5, and it is electrically connected by the second control panel MCU23 Fen San road: a road is electrically connected with the 3rd wireless communication module the 25, the 3 485 data acquisition control port 26 respectively via the 4th photoelectricity isolated location 24; Another road via the 5th photoelectricity isolated location 27, the second auxiliary reclay 28, the second contactor 29, is electrically connected to motor operated valve 30 successively; Third Road is successively via being electrically connected with second transmitter 33, the second pressure transmitter 34 respectively after the 2nd AD converting unit 31, the 6th photoelectricity isolated location 32 again.Wherein, the first and second control panel MCU11 and 23 all adopt AT89S52 single-chip microcomputer, the first to the 6th photoelectricity isolated location 12, 15, 20, 24, 27, 32 all adopt TLP521-4 type photoelectric isolated chip, the first and second AD converting units 19 and 31 adopt the MAX197 chip of MAXIN company, the first and second flow transmitters 21 and 33 all adopt the one-piece type electromagnetic flowmeter of JDK300 of Shanghai Ou Jie instrument and meter Co., Ltd, the first and second pressure transmitters 22 and 34 are the PRC908 type pressure transmitter of Hangzhou Run Chen Science and Technology Ltd., motor operated valve 30 is the ZAJQ-16P type high speed electric valve of Shanghai Han Er Jia pump valve company, mudjack 18 is the HB type piston type mudjack that great achievement building machinery Co., Ltd produces.
Operating principle of the present invention is:
By enter slurry end A end and slurry output end B end in grouting duct, flow and pressure transmitter are set respectively, detect in real time grouting flow and pressure signal, and pass in time grouting console, being implanted in SD card memory cell 8 with the application software of a kind of above-mentioned bridge prestress pore channel grouting quality control method, grouting console according to said method shields the slurry pressurize moment by calculative determination simultaneously.
The embedded main board 1 of grouting console by the first wireless communication module the 4 or the 1 data acquisition control port 5 by on-the-spot the grouting that receives first, second flow transmitter 21 and 33 and the signal of first, second pressure transmitter 22 and 34 after data-signal is processed, on graphic control panel display 2, show, and print by mini-printer 6, also can be sent to remote monitoring center via mobile communication module 3.Meanwhile, grouting console can also send control command to site measuring and control case by the first wireless communication module the 4 or the 1 data acquisition control port 5, controls mudjack 18 and motor operated valve 30 and moves, and realizes the control of prestressed pore passage grouting procedure quality.
Enter the first flow transmitter 21 of slurry end observing and controlling case, 4～20ma analog signal that the first pressure transmitter 22 provides, through the 3rd photoelectricity isolated location 20 and an AD converting unit 19, convert data signal to, deliver to the first control panel MCU11, via the first photoelectricity isolated location 12, be sent to grouting console by the 2 485 data acquisition control port one 4 or the second wireless communication module 13 again.Meanwhile, the first control panel MCU11 can also accept to be in the milk order of console, moves through the second photoelectricity isolated location 15, the first auxiliary reclay 16, the first contactor 17, controls mudjack 18 and starts and stop action.
The second transmitter 33 of slurry output end observing and controlling case, 4～20ma analog signal that the second pressure transmitter 34 provides, through the 6th photoelectricity isolated location 32 and the 2nd AD converting unit 31, convert data signal to, deliver to the second control panel MCU23, via the 4th photoelectricity isolated location 24, be sent to grouting console by the 3 485 data acquisition control port 26 or the 3rd wireless communication module 25 again.Meanwhile, the second control panel MCU23 can also accept to be in the milk order of console, through the 5th photoelectricity isolated location 27, the second auxiliary reclay 28, the second contactor 29, finally controls motor operated valve 30 and moves.
Like this, the present invention is by monitoring bridge prestress pore channel grouting construction overall process, grouting construction quality assurance is provided, solves the difficult problem that prior art bridge prestress pore channel grouting construction quality cannot ensure, the present invention is simultaneously modularization integrated morphology, device volume is little, on-the-spot simple installation, adaptive capacity to environment is strong, saves manpower, improve work efficiency, of many uses.
Claims (2)
1. a bridge prestress pore channel grouting quality control method, the method feature is to enter slurry end and slurry output end in prestressed grouting duct flow and pressure transmitter are set simultaneously, is shielded and is starched the pressurize t zero hour by judgement
kdetermine grouting time T
0, ensure thus prestressed pore passage grouting quality, judge the screen slurry pressurize t zero hour
kcondition be: enter slurry end A end flow meter at grouting time T
0interior integrated flow
equal grout hole deferent and hold Q
0,
Wherein T
0=t
k-t
p;
T
pfor starting the moment of being in the milk, now start mudjack work;
T
kbe the screen slurry pressurize zero hour, now close slurry output end B end motor operated valve;
Q
tfor t moment flow;
Δ t is carved into the time interval between next adjacent traffic sampling moment while being t;
Q
0=L(S
1-S
2)+(L
3+L
4)S
0；
In formula: L is bridge bellows length, be also steel strand length in bellows;
S
1for bridge bellows cross-sectional area;
S
2for the total cross-sectional area of steel strand;
L
3for entering slurry end sebific duct length;
L
4for slurry output end sebific duct length;
S
0for sebific duct cross-sectional area;
Said method is to realize by a kind of touch-screen type prestressed pore passage intelligence grouting controller, the application software that this controller contains said method, in prestressed grouting duct, into and out of starching, end all arranges pressure transmitter to this controller and flow transmitter is starched flow and the pressure signal at A, B two ends to detect in real time turnover, and the full engineering of bridge prestress pore channel grouting construction is monitored; Shield the slurry pressurize t zero hour by calculative determination
k, at t
kin the moment, slurry output end B end motor operated valve is closed in this controller control, then stops moment t in the pressurize of screen slurry
0control is closed into slurry end A side pressure stock pump, completes grouting, guarantees bridge duct grouting construction quality; Wherein t
0=T
1+ t
k, screen slurry dwell time T
1job specfication by concrete bridge engineering is determined.
2. bridge prestress pore channel grouting quality control method according to claim 1, the touch-screen type prestressed pore passage intelligence grouting controller wherein using comprises mudjack, it is characterized in that by grouting console, enters to starch observing and controlling case, pulp observing and controlling case forms; Grouting console is touch-screen type grouting console, be electrically connected respectively graphic control panel display (2), mobile communication module (3), the first wireless communication module (4), the one 485 data acquisition control port (5), mini-printer (6), USB interface (7), SD card memory cell (8), debug serial port (9) by embedded main board (1), above-mentioned device is powered by multi-channel switch power (10);
Entering to starch observing and controlling case is electrically connected by the first control panel MCU (11) Fen San road: a road is electrically connected with the second wireless communication module (13), the 2 485 data acquisition control port (14) respectively via the first photoelectricity isolated location (12); Another road via the second photoelectricity isolated location (15), the first auxiliary reclay (16), the first contactor (17), is electrically connected to mudjack (18) successively; Third Road is successively via being electrically connected with first flow transmitter (21), the first pressure transmitter (22) respectively after an AD converting unit (19), the 3rd photoelectricity isolated location (20) again;
Pulp observing and controlling case is electrically connected by the second control panel MCU (23) Fen San road: a road is electrically connected with the 3rd wireless communication module (25), the 3 485 data acquisition control port (26) respectively via the 4th photoelectricity isolated location (24); Another road via the 5th photoelectricity isolated location (27), the second auxiliary reclay (28), the second contactor (29), is electrically connected to motor operated valve (30) successively; Third Road is successively via being electrically connected with second transmitter (33), the second pressure transmitter (34) respectively after the 2nd AD converting unit (31), the 6th photoelectricity isolated location (32) again;
Grouting console by the first wireless communication module (4) respectively with enter to starch second wireless communication module (13) of observing and controlling case and the 3rd wireless communication module (25) of pulp observing and controlling case is electrically connected by wireless mode; Be in the milk in addition console by the one 485 data acquisition control port (5) respectively with enter to starch the 2 485 data acquisition control port (14) of observing and controlling case and the 3 485 data acquisition control port (26) of pulp observing and controlling case and be electrically connected by wired mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110182793.XA CN102304894B (en) | 2011-07-01 | 2011-07-01 | Method and device for controlling grouting quality of bridge prestressing force pore path |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110182793.XA CN102304894B (en) | 2011-07-01 | 2011-07-01 | Method and device for controlling grouting quality of bridge prestressing force pore path |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102304894A CN102304894A (en) | 2012-01-04 |
| CN102304894B true CN102304894B (en) | 2014-08-13 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110182793.XA Expired - Fee Related CN102304894B (en) | 2011-07-01 | 2011-07-01 | Method and device for controlling grouting quality of bridge prestressing force pore path |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359072A (en) * | 2011-08-03 | 2012-02-22 | 李跃军 | Grouting quality control method and grouting quality control device for bridge prestressed pipeline based on density parameters |
| CN102505634A (en) * | 2011-09-29 | 2012-06-20 | 桂岚 | Prestress duct grouting quality control method based on double parameters including tube capacity and density |
| CN104268177A (en) * | 2014-09-15 | 2015-01-07 | 中国铁道科学研究院铁道建筑研究所 | Grouting data processing system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2611436Y (en) * | 2003-03-20 | 2004-04-14 | 武汉长江仪器自动化研究所 | Circulation grouting multi-valve controlled duct connecting structure with double flowmeters |
| WO2006049326A1 (en) * | 2004-11-05 | 2006-05-11 | Anderson Technology Corporation | Construction method for filling grout into cable sheath including vacuuming step in pc structure |
| CN101649602A (en) * | 2008-08-12 | 2010-02-17 | 上海市机械施工有限公司 | 150-meter five-span continuous box girder pre-stressed construction method |
| CN202175916U (en) * | 2011-07-01 | 2012-03-28 | 李跃军 | Touch screen type intelligent grouting controller for prestressed duct |
-
2011
- 2011-07-01 CN CN201110182793.XA patent/CN102304894B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2611436Y (en) * | 2003-03-20 | 2004-04-14 | 武汉长江仪器自动化研究所 | Circulation grouting multi-valve controlled duct connecting structure with double flowmeters |
| WO2006049326A1 (en) * | 2004-11-05 | 2006-05-11 | Anderson Technology Corporation | Construction method for filling grout into cable sheath including vacuuming step in pc structure |
| CN101649602A (en) * | 2008-08-12 | 2010-02-17 | 上海市机械施工有限公司 | 150-meter five-span continuous box girder pre-stressed construction method |
| CN202175916U (en) * | 2011-07-01 | 2012-03-28 | 李跃军 | Touch screen type intelligent grouting controller for prestressed duct |
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| CN102304894A (en) | 2012-01-04 |
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