CN102505634A - Prestress duct grouting quality control method based on double parameters including tube capacity and density - Google Patents
Prestress duct grouting quality control method based on double parameters including tube capacity and density Download PDFInfo
- Publication number
- CN102505634A CN102505634A CN2011102909674A CN201110290967A CN102505634A CN 102505634 A CN102505634 A CN 102505634A CN 2011102909674 A CN2011102909674 A CN 2011102909674A CN 201110290967 A CN201110290967 A CN 201110290967A CN 102505634 A CN102505634 A CN 102505634A
- Authority
- CN
- China
- Prior art keywords
- slurry
- grouting
- density
- slip casting
- pressurize
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
Disclosed is a prestress duct grouting quality control method based on double parameters including tube capacity and density. The method detects whether prestress duct grouting accumulative flow achieves prestress duct tube capacity or not and whether water to cement ratio meets requirements of grouting process or not, grouting pressure maintaining time tk is judged by means of judging whether the two conditions are met simultaneously or not, and then operation of bridge prestress duct grouting construction is controlled, a grout pressing pump at a grout inlet end is started at grouting beginning time tp, and grouting begins; an electric valve at a grout outlet end is closed at grouting pressure maintaining beginning time tk; and the grout pressing pump at the grout inlet end is closed at the grouting pressure maintaining stop time t0. The pressure duct grouting quality control method can control bridge prestress duct grouting construction quality, ensures the quality of bridge prestress duct grouting construction, and effectively resolves the difficult problem that grouting quality cannot be guaranteed under the condition of manual grouting in the prior art.
Description
Technical field
The present invention relates to the bridge prestress pore channel mortar depositing construction, specially refer to a kind of bridge prestress pore channel grouting quality control method.
Background technology
Prior art bridge prestress pore channel mortar depositing construction is to rely on the on-site construction operations personnel with perusal, and the slip casting of end operation mudjack is gone in manual operations in the slip casting duct; Say end at injected hole and close angle valve screen slurry, rely on constructing operation standard, sense of responsibility and professional personal integrity to come control construction quality purely, therefore be difficult to guarantee construction quality; Slip casting leakiness situation appears easily; Hole occurs, excreting water phenomenon causes engineering to have hidden danger.Although there are indivedual engineerings in the prestressed pore passage mortar depositing construction, to adopt the slip casting recorder also can only on-the-spot passive record slip casting situation, can not control the mortar depositing construction quality, therefore still can not effectively solve the problems referred to above that exist in the prestressed pore passage mortar depositing construction.
Summary of the invention
The object of the invention is to overcome the above-mentioned drawback that exists in the prior art bridge prestress pore channel mortar depositing construction, and a kind of grouting quality control method that can guarantee construction quality is provided.
The technical solution that the present invention proposes is: hold and density biparametric bridge prestress pore channel grouting quality control method based on pipe; This method characteristic is to advance the slurry end in prestressing force slip casting duct flow, pressure transmitter are set; Slurry output end is provided with flow, pressure and density transmitter, at the slip casting t zero hour
p, starting and advance slurry end mudjack, beginning slip casting is judged the screen slurry pressurize t zero hour through detecting slurry end integrated flux and slurry output end water/binder ratio density
k, ensure the prestressed pore passage grouting quality thus, at the screen slurry pressurize t zero hour
k, close the slurry output end motor operated valve, stop t constantly in the pressurize of screen slurry
0, close into slurry end mudjack; Judge the screen slurry pressurize t zero hour
kNeed to satisfy simultaneously two conditions:
1. advance slurry end flow meter at grouting time T
0Interior integrated flow
Equal the grout hole deferent and hold Q
0, promptly
Slurry is held and slurry output end pressure size is confirmed by the construction technology regulation and advance,
T wherein
0=t
k-t
p
t
kBe screen slurry pressurize zero hour;
t
pBe slip casting zero hour;
Q
0＝L(S
1-S
2)+(L
3+L
4)S
0；
In the formula: L is a bridge bellows length, also is steel strand length in the bellows;
S
1Be bridge bellows cross-sectional area;
S
2Be the total cross-sectional area of steel strand;
L
3For advancing slurry end sebific duct length;
L
4Be slurry output end sebific duct length;
S
0Be the sebific duct cross-sectional area;
2. the detected water/binder ratio density of slurry output end density transmitter reaches the grouting process requirement.
Advantage of the present invention is:
1. measure the Guan Rong and the density parameter of grouting process through on-site real-time, control grouting quality, confirm that exactly the slip casting pressurize constantly, guarantees grouting quality with this.
2. described in the invention be used to judge screen slurry pressurize method strong operability constantly, realize easily.
3. the present invention adopts flow, pressure, density sensor as measuring transducer, has certainty of measurement height, strong interference immunity, not influenced by operating mode and artificial disturbance.
4. the present invention is not only applicable to bridge prestress pore channel slip casting, but also can be used for other mortar depositing construction occasions.
Description of drawings
Fig. 1 is a mortar depositing construction sketch map of the present invention.
Fig. 2 is slip casting of the present invention and screen slurry pressurize construction state sequential chart.
Fig. 3 is a slip casting console structure chart of the present invention.
Fig. 4 is the observing and controlling box structure figure that advances to starch of the present invention.
Fig. 5 is pulp observing and controlling box structure figure of the present invention.
The specific embodiment
The present invention combines specific embodiment to further specify as follows referring to accompanying drawing:
Bridge prestress pore channel mortar depositing construction sketch map holds and density biparametric bridge prestress pore channel grouting quality control method based on pipe referring to 1 one kinds in accompanying drawing; This method is to advance slurry end A end in prestressing force slip casting duct flow, pressure transmitter are set; Slurry output end B end is provided with flow, pressure and density transmitter, through judging the screen slurry pressurize t zero hour
k, ensure the prestressed pore passage grouting quality.
Bridge prestress pore channel slip casting and screen slurry pressurize construction state sequential chart, referring to accompanying drawing 2, t among the figure
pBe slip casting zero hour, open slurry end A end mudjack this moment, t
kBe the screen slurry pressurize moment, this closes slurry output end B end motor operated valve, t constantly
pTo t
kTime period constantly is the slip casting time T
0, i.e. T
0=t
k-t
pt
0For the pressurize of screen slurry stops constantly, this closes into slurry end A end mudjack constantly.t
kTo t
0Time period constantly is screen slurry dwell time T
1, promptly screen is starched dwell time T
1=t
0-t
k, screen slurry dwell time T
1Job specfication by concrete bridge engineering is confirmed.
The pressurize of screen slurry is t constantly
kThe factor that in the bridge prestress pore channel mortar depositing construction, the mortar depositing construction quality is had significant impact, prior art are to confirm screen slurry pressurize t constantly by rule of thumb through the concentration of artificial perusal cement paste
k, therefore receiving interference from human factor and error is very big, grouting quality is difficult to guarantee; The inventive method is to provide to judge screen slurry pressurize t constantly to the scheme of this solution
kThe condition that satisfies simultaneously of two needs:
1. advance slurry end A end flow meter at grouting time T
0Interior integrated flow ∑ Q
t* Δ t equals the grout hole deferent and holds Q
0, promptly
Slurry is held and slurry output end pressure size is confirmed by the construction technology regulation and advance,
T wherein
0=t
k-t
p
t
kBe screen slurry pressurize zero hour
t
pBe slip casting zero hour;
Q
0＝L(S
1-S
2)+(L
3+L
4)S
0；
In the formula: L is a bridge bellows length, also is steel strand length in the bellows;
S
1Be bridge bellows cross-sectional area;
S
2Be the total cross-sectional area of steel strand;
L
3For advancing slurry end sebific duct length;
L
4Be slurry output end sebific duct length;
S
0Be the sebific duct cross-sectional area.
2. the detected water/binder ratio density of slurry output end B end density transmitter reaches the grouting process requirement.
Detect t constantly
kAfter, mortar depositing construction is controlled through the present invention in this moment, carry out relevant mortar depositing construction and screen slurry pressurize operation, guarantee bridge duct mortar depositing construction quality with this, Δ t got 1 second in the present embodiment.
The inventive method is to realize that through a kind of bridge prestress pore channel intelligence slip casting controller this controller includes mudjack, its characteristic by the slip casting console, advance to starch the observing and controlling case, pulp observing and controlling case three parts are formed.Slip casting console structure is formed referring to accompanying drawing 3, and it connects graphic control panel 2, mobile communication module 3, wireless communication module 4, mini-printer 5 respectively by X86 Industry Control plate 1, and above-mentioned device is by multi-channel switch power 6 power supplies.The 700Mini-ITX type X86 Industry Control plate of its sea, X86 Industry Control plate 1 employing Shenzhen day male Electronics Co., Ltd.; Graphic control panel 2 employing Taiwan crowds create 8 cun very color industrial touch-screens; Mobile communication module 3 adopts the EM310 of Huawei Company type GPRS communication module, wireless communication module 4 employing Wuhan Feng He science and technology 433MHZ wireless transmission module.Advance to starch the observing and controlling box structure and form referring to accompanying drawing 2, it is by control panel MCU electrical connection in 7 minutes three tunnel: the one tunnel is electrically connected with wireless communication module 9,485 data acquisition control port ones 0 respectively via photoelectricity isolated location 8; Another road via photoelectricity isolated location 11, auxiliary reclay 12, contactor 13, is electrically connected to mudjack 14 successively; Third Road is successively via being electrically connected with flow transmitter 17, pressure transmitter 18 respectively behind AD converting unit 15, the photoelectricity isolated location 16 again.Pulp observing and controlling box structure is formed referring to accompanying drawing 3, and it divides three the tunnel to be electrically connected by control panel MCU19: the one tunnel is electrically connected with wireless communication module 21,485 data acquisition control ports 22 respectively via photoelectricity isolated location 20; Another road via photoelectricity isolated location 23, auxiliary reclay 24, contactor 25, is electrically connected to motor operated valve 26 successively; Third Road is successively via being electrically connected with flow transmitter 29, pressure transmitter 30, density transmitter 31 respectively behind AD converting unit 27, the photoelectricity isolated location 28 again.Wherein, Control panel MCU7 and 19 all adopts the AT89S52 single-chip microcomputer; Photoelectricity isolated location 8,11,16,20,23,28 all adopts TLP521-4 type photoelectric isolated chip; AD converting unit 15 and 27 adopts the MAX197 chip of MAXIN company; Flow transmitter 17 and 29 all adopts the one-piece type electromagnetic flowmeter of JDK300 of Shanghai Ou Jie instrument and meter Co., Ltd, and pressure transmitter 18 and the 30 PRC908 type pressure transmitters for Hangzhou profit occasion Science and Technology Ltd., motor operated valve 26 are the ZAJQ-16P type high speed electric valve of the good pump valve of Shanghai Han that company; Density transmitter 31 is the great HX1602 type density transmitter of rising scientific and technological wired company in Chengdu, and mudjack 14 is the HB type piston type mudjack that great achievement building machinery Co., Ltd produces.
Operating principle of the present invention is:
Through advance slurry end A end in the slip casting duct flow, pressure transmitter are set; Slurry output end B end is provided with flow, pressure and density transmitter; Detect flow rate of grouting, pressure and density signal in real time; And in time pass to the slip casting console, and being implanted to the application software that has the inventive method in the X86 industry control panel 1 simultaneously, the slip casting console is confirmed the pressurize of screen slurry constantly by the inventive method through calculating.
The X86 Industry Control plate 1 of slip casting console through wireless communication module 3 or the 485 data acquisition control ports that carry with the mud jacking situ flow transmitter 17 that receives and 29 and pressure transmitter 18 and 30 and after the signal of density transmitter 31 handles through data-signal, by flow transmitter 17 with 29 and the Guan Rong that provided of density transmitter 31 starch pressurize moment t with density signal definite screen in initialize program
k, realize the operation of slurry end mudjack and slurry output end motor operated valve in view of the above, accomplish the mortar depositing construction quality control.
On graphic control panel screen 2, show, and print, also can be sent to remote monitoring center via mobile communication module 3 through mini-printer 5.Simultaneously; The slip casting console can also send control command to on-the-spot observing and controlling case through the 485 data acquisition control ports that wireless communication module 4 or X86 Industry Control plate 1 carry; Control mudjack 14 and motor operated valve 26 actions are realized the control of prestress pipe slip casting procedure quality.
Advance the flow transmitter 17 of slurry end observing and controlling case, 4～20ma analog signal that pressure transmitter 18 is provided; Through photoelectricity isolated location 16 and AD converting unit 15; Convert data signal to; Deliver to control panel MCU7, via signal output photoelectricity isolated location 8, be sent to the slip casting console again through 485 data acquisition control port ones 0 or wireless communication module 9.Simultaneously, control panel MCU7 can also accept the order of slip casting console, and through photoelectricity isolated location 11, auxiliary reclay 12, contactor 13 actions, control mudjack 14 begins and stop action.
4～20ma analog signal that the flow transmitter 29 of slurry output end observing and controlling case, pressure transmitter 30, density transmitter 31 provide; Through photoelectricity isolated location 28 and AD converting unit 27; Convert data signal to; Deliver to control panel MCU19, via signal output photoelectricity isolated location 20, be sent to the slip casting console again through 485 data acquisition control ports 22 or wireless communication module 21.Simultaneously, control panel MCU19 can also accept the order of slip casting console, through photoelectricity isolated location 23, auxiliary reclay 24, contactor 25, finally controls motor operated valve 26 actions.
Like this, the present invention provides the mortar depositing construction quality assurance through bridge prestress pore channel mortar depositing construction quality is controlled; Solve the difficult problem that prior art bridge prestress pore channel mortar depositing construction quality can't guarantee, device described in the invention is a modularization integrated morphology simultaneously, and device volume is little; On-the-spot simple installation, adaptive capacity to environment is strong, practices thrift manpower; Improve work efficiency, of many uses.
Claims (1)
1. hold and density biparametric bridge prestress pore channel grouting quality control method based on pipe, this method characteristic is to advance the slurry end in prestressing force slip casting duct flow, pressure transmitter are set, and slurry output end is provided with flow, pressure and density transmitter, at the slip casting t zero hour
p, starting and advance slurry end mudjack, beginning slip casting is judged the screen slurry pressurize t zero hour through detecting slurry end integrated flux and slurry output end water/binder ratio density
k, ensure the prestressed pore passage grouting quality thus, at the screen slurry pressurize t zero hour
k, close the slurry output end motor operated valve, stop t constantly in the pressurize of screen slurry
0, close into slurry end mudjack; Judge the screen slurry pressurize t zero hour
kNeed to satisfy simultaneously two conditions:
1. advance slurry end flow meter at grouting time T
0Interior integrated flow
Equal the grout hole deferent and hold Q
0, promptly
Slurry is held and slurry output end pressure size is confirmed by the construction technology regulation and advance,
T wherein
0=t
k-t
p
t
kBe screen slurry pressurize zero hour;
t
pBe slip casting zero hour;
Q
0＝L(S
1-S
2)+(L
3+L
4)S
0；
In the formula: L is a bridge bellows length, also is steel strand length in the bellows;
S
1Be bridge bellows cross-sectional area;
S
2Be the total cross-sectional area of steel strand;
L
3For advancing slurry end sebific duct length;
L
4Be slurry output end sebific duct length;
S
0Be the sebific duct cross-sectional area;
2. the detected water/binder ratio density of slurry output end density transmitter reaches the grouting process requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102909674A CN102505634A (en) | 2011-09-29 | 2011-09-29 | Prestress duct grouting quality control method based on double parameters including tube capacity and density |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102909674A CN102505634A (en) | 2011-09-29 | 2011-09-29 | Prestress duct grouting quality control method based on double parameters including tube capacity and density |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102505634A true CN102505634A (en) | 2012-06-20 |
Family
ID=46217763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102909674A Pending CN102505634A (en) | 2011-09-29 | 2011-09-29 | Prestress duct grouting quality control method based on double parameters including tube capacity and density |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102505634A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074143A (en) * | 2014-07-17 | 2014-10-01 | 柳州市桥厦工程管材有限公司 | Intelligent circulating prestress mud jacking system and control method thereof |
| CN107489432A (en) * | 2017-09-18 | 2017-12-19 | 山东科技大学 | Tunnel support grouting equipment and its grouting method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102304894A (en) * | 2011-07-01 | 2012-01-04 | 李跃军 | Method and device for controlling grouting quality of bridge prestressing force pore path |
-
2011
- 2011-09-29 CN CN2011102909674A patent/CN102505634A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102304894A (en) * | 2011-07-01 | 2012-01-04 | 李跃军 | Method and device for controlling grouting quality of bridge prestressing force pore path |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074143A (en) * | 2014-07-17 | 2014-10-01 | 柳州市桥厦工程管材有限公司 | Intelligent circulating prestress mud jacking system and control method thereof |
| CN107489432A (en) * | 2017-09-18 | 2017-12-19 | 山东科技大学 | Tunnel support grouting equipment and its grouting method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102359072A (en) | Grouting quality control method and grouting quality control device for bridge prestressed pipeline based on density parameters | |
| CN103485747A (en) | Automatic pressure-adding borehole sealing device and method | |
| CN202531136U (en) | Automatic measuring-adjusting and monitoring separate injection system for water injection well | |
| CN201358778Y (en) | Under-balanced drilling automatic pressure compensation system | |
| CN201330573Y (en) | Bottom-hole pressure precision control system of under balance drilling | |
| CN101555799A (en) | Automatic grouting control device of push bench and method | |
| CN102505634A (en) | Prestress duct grouting quality control method based on double parameters including tube capacity and density | |
| CN105221159A (en) | Electrically jointly control type shield structure pressure-retaining system | |
| CN202175916U (en) | Touch screen type intelligent grouting controller for prestressed duct | |
| CN102852093A (en) | Bridge pre-stress duct grouting quality control method and device thereof | |
| CN203603892U (en) | Semi-automatic ground control device and signal analyzing system in rotary guiding system | |
| CN101831909A (en) | Cement mixing pile construction slurry flow real-time control device | |
| CN102304894B (en) | Method and device for controlling grouting quality of bridge prestressing force pore path | |
| CN103031809A (en) | Prestress hole channel grouting quality control method based on double parameters of flow and density | |
| CN101737018A (en) | Real-time monitoring method and device of underbalanced drilling well bottom pressure | |
| CN108825186A (en) | A kind of water injection rate automatic control device and method | |
| CN103031810A (en) | Prestress hole channel grouting quality control method based on double parameters of flow and density | |
| CN102628290B (en) | Grab controller, control system and control method as well as engineering mechanical equipment | |
| CN202577148U (en) | An intelligent control instrument for prestress duct slip casting based on dual parameters of pipe capacity and density | |
| CN203925506U (en) | Slurry balance pipe-jacking tunneling machine excavation face automatic pressure-balancing device | |
| CN107511916A (en) | A kind of Dinas brickes steam-pressure maintaining device | |
| CN202577149U (en) | An intelligent control instrument for prestress duct slip casting based on dual parameters of flow and density | |
| CN204844497U (en) | Intelligence slurrying system | |
| CN201450984U (en) | Electronic tensiometer | |
| CN204041117U (en) | Multi-parameters real-time monitoring controller in a kind of mortar depositing construction process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120620 |