CN208183547U - Box girder pre-stressed hole path pressure grouting experimental rig - Google Patents
Box girder pre-stressed hole path pressure grouting experimental rig Download PDFInfo
- Publication number
- CN208183547U CN208183547U CN201820608330.2U CN201820608330U CN208183547U CN 208183547 U CN208183547 U CN 208183547U CN 201820608330 U CN201820608330 U CN 201820608330U CN 208183547 U CN208183547 U CN 208183547U
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- China
- Prior art keywords
- valve
- pipeline
- storing tank
- box girder
- waste pulp
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- 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.)
- Expired - Fee Related
Links
- 239000002002 slurry Substances 0.000 claims abstract description 27
- 239000002699 waste material Substances 0.000 claims abstract description 16
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 8
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 239000004568 cement Substances 0.000 description 6
- 238000003756 stirring Methods 0.000 description 5
- 238000005086 pumping Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229920005479 Lucite® Polymers 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
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- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The utility model discloses a kind of box girder pre-stressed hole path pressure grouting experimental rigs, the left and right end connector including being connected to box girder pre-stressed duct both ends；Left end connector is connect by feed pipe for mortar with mudjack, and the first valve is arranged on stock line；Right end connector is connect with efferent duct, and the efferent duct is connect by three-way valve with vacuum system, waste pulp collection system；Second valve is set on efferent duct；The vacuum system includes slurry storing tank, and the pipeline between slurry storing tank and triple valve is equipped with third valve, and slurry storing tank is controlled to a vacuum pump by pipeline, and the pipeline between vacuum pump and slurry storing tank is equipped with vacuum meter；The waste pulp collection system includes waste pulp bucket, and the pipeline between waste pulp bucket and triple valve is equipped with the 4th valve.The utility model is easy to use, favorable working performance.
Description
Technical field
The utility model relates to a kind of box girder pre-stressed hole path pressure grouting experimental rigs.
Background technique
After beam section tension of prestressed tendon, pumping of prostressed duct is completed in 48 hours, in case steel strand wires get rusty, simultaneously
And guarantee to bond integral important measures between steel beam and concrete.The prior art lacks the box girder pre-stressed duct of profession
Mud jacking experimental rig.
Summary of the invention
The purpose of this utility model is to provide a kind of box girder pre-stressed hole path pressure grouting experimental rigs of favorable working performance.
The technical solution of the utility model is:
A kind of box girder pre-stressed hole path pressure grouting experimental rig, it is characterized in that: including being connected to box girder pre-stressed duct both ends
Left and right end connector；Left end connector is connect by feed pipe for mortar with mudjack, and the first valve is arranged on stock line；Right end connector with
Efferent duct connection, the efferent duct are connect by three-way valve with vacuum system, waste pulp collection system；Second is arranged on efferent duct
Valve；The vacuum system includes slurry storing tank, and the pipeline between slurry storing tank and triple valve is equipped with third valve, and slurry storing tank passes through pipeline
It is controlled to a vacuum pump, the pipeline between vacuum pump and slurry storing tank is equipped with vacuum meter；The waste pulp collection system includes waste pulp bucket,
Pipeline between waste pulp bucket and triple valve is equipped with the 4th valve.
Feed pipe for mortar is anti-pressure ability >=2MPa rubber tube.
The utility model is easy to use, favorable working performance.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram of the utility model one embodiment.
Specific embodiment
A kind of box girder pre-stressed hole path pressure grouting experimental rig, the left and right end including being connected to box girder pre-stressed 1 both ends of duct
Connector 2,3；Left end connector is connect by feed pipe for mortar 5 with mudjack 4, and the first valve 6 is arranged on stock line；Right end connector and output
Pipe 7 connects, and the efferent duct is connect by three-way valve 8 with vacuum system, waste pulp collection system；Second valve is set on efferent duct
9；The vacuum system includes slurry storing tank 10, and the pipeline between slurry storing tank and triple valve is equipped with third valve 11, and slurry storing tank passes through
Pipeline is connect with vacuum pump 12, and the pipeline between vacuum pump and slurry storing tank is equipped with vacuum meter 13；The waste pulp collection system packet
Waste pulp bucket 14 is included, the pipeline between waste pulp bucket and triple valve is equipped with the 4th valve 15.
Feed pipe for mortar is anti-pressure ability >=2MPa high-pressure rubber hose.
The course of work:
(1) examination vacuumizes
Mud jacking valve (i.e. the first valve), exhaust valve (i.e. the 4th valve) are all closed, vacuum pumping valve (i.e. third valve), the second valve
It opens, starting vacuum pump vacuumizes, and observes vacuum pressure meter reading, when the vacuum in pipe maintains -0.08MPa, termination of pumping is about
The 1min time, if pressure energy remains unchanged i.e. it is believed that can reach and maintain vacuum.
(2) cement slurry makes
The requirement of cement slurry: not less than 40MPa cooperation, when pertinence can should meet code requirement to 7 days compression strength.
Stirring sequence: the 90% of water → grouting agent → addition cement is added → is added and is stirred with mortar mixer and (stirs 30 slowly
Second stirs 30 seconds fastly) → remaining water → stirring (fast stirring 60 seconds) is added → survey fluidity.
It mixes cement before slurry, adds water to dally several minutes, by ponding evacuation, be sufficiently humidified so as to blender inner wall, be stirred
Underflow to accomplish to have unloaded to the greatest extent, the material of non-mix must not be put into again before whole underflows are drawn off, can not be discharged using side
The method of side charging.
(3) mud jacking
1) cement slurry is added in storage slurry filling and guides to mudjack, open mud jacking valve, the outlet of mudjack high-pressure rubber hose is got
Slurry turns off mudjack when these slurry concentrations are as the concentration in mudjack, and by high-pressure rubber hose, this terminates to box beam
On the left end connector at prestressed pore passage both ends, fasten.
2) mud jacking valve is closed, vacuum pump is started, when vacuum values reach and maintain -0.06~-0.1MPa value, opens pressure
Valve is starched, mudjack is started, starts mud jacking, during mud jacking, vacuum pump keeps continuous work.
3) when having slurry to pass through in the efferent duct (using lucite pipe) for vacuumizing end, the true of vacuum machine front end is closed
Empty valve closes vacuum machine, opens the 4th valve, cement slurry can the smooth outflow from the 4th valve automatically, and consistency and the slurry that pours into
When suitable, close and take out the second valve.
4) mudjack works on, and pressure reaches 0.7Mpa or so, holds pressure 2min and completes exhaust bleeding, makes slurry in duct
It is closely knit full, mud jacking is completed, mudjack and the first valve are closed.
Claims (2)
1. a kind of box girder pre-stressed hole path pressure grouting experimental rig, it is characterized in that: including being connected to box girder pre-stressed duct both ends
Left and right end connector；Left end connector is connect by feed pipe for mortar with mudjack, and the first valve is arranged on stock line；Right end connector with it is defeated
Outlet pipe connection, the efferent duct are connect by three-way valve with vacuum system, waste pulp collection system；Second is arranged on efferent duct
Valve；The vacuum system includes slurry storing tank, and the pipeline between slurry storing tank and triple valve is equipped with third valve, and slurry storing tank passes through pipeline
It is controlled to a vacuum pump, the pipeline between vacuum pump and slurry storing tank is equipped with vacuum meter；The waste pulp collection system includes waste pulp bucket,
Pipeline between waste pulp bucket and triple valve is equipped with the 4th valve.
2. box girder pre-stressed hole path pressure grouting experimental rig according to claim 1, it is characterized in that: feed pipe for mortar is anti-pressure ability
The rubber tube of >=2MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820608330.2U CN208183547U (en) | 2018-04-26 | 2018-04-26 | Box girder pre-stressed hole path pressure grouting experimental rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820608330.2U CN208183547U (en) | 2018-04-26 | 2018-04-26 | Box girder pre-stressed hole path pressure grouting experimental rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208183547U true CN208183547U (en) | 2018-12-04 |
Family
ID=64431454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820608330.2U Expired - Fee Related CN208183547U (en) | 2018-04-26 | 2018-04-26 | Box girder pre-stressed hole path pressure grouting experimental rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208183547U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109795031A (en) * | 2019-03-21 | 2019-05-24 | 中铁十四局集团第三工程有限公司 | A kind of post stretching precast beam automatic benefit sizing device and its application method |
| CN111997369A (en) * | 2020-08-07 | 2020-11-27 | 中国建筑第二工程局有限公司 | Prestressed long-distance large-diameter multi-curvature pore passage vacuum grouting device and grouting method |
| CN112227725A (en) * | 2020-11-11 | 2021-01-15 | 中交第四公路工程局有限公司 | Grouting structure of long pore passage of prestressed concrete stiffening beam and construction method thereof |
| CN112459494A (en) * | 2020-11-25 | 2021-03-09 | 中国建筑土木建设有限公司 | Automatic grouting system and grouting method for prestressed pipeline |
-
2018
- 2018-04-26 CN CN201820608330.2U patent/CN208183547U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109795031A (en) * | 2019-03-21 | 2019-05-24 | 中铁十四局集团第三工程有限公司 | A kind of post stretching precast beam automatic benefit sizing device and its application method |
| CN109795031B (en) * | 2019-03-21 | 2024-05-17 | 中铁十四局集团第三工程有限公司 | Automatic slurry supplementing device for post-tensioning prefabricated beam slab and application method of automatic slurry supplementing device |
| CN111997369A (en) * | 2020-08-07 | 2020-11-27 | 中国建筑第二工程局有限公司 | Prestressed long-distance large-diameter multi-curvature pore passage vacuum grouting device and grouting method |
| CN112227725A (en) * | 2020-11-11 | 2021-01-15 | 中交第四公路工程局有限公司 | Grouting structure of long pore passage of prestressed concrete stiffening beam and construction method thereof |
| CN112459494A (en) * | 2020-11-25 | 2021-03-09 | 中国建筑土木建设有限公司 | Automatic grouting system and grouting method for prestressed pipeline |
| CN112459494B (en) * | 2020-11-25 | 2022-05-17 | 中国建筑土木建设有限公司 | Automatic grouting system and grouting method for prestressed pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181204 |