CN208293429U - The prestress hole path pressure grouting circulatory system in a kind of prestressed reinforced concrete construction - Google Patents
The prestress hole path pressure grouting circulatory system in a kind of prestressed reinforced concrete construction Download PDFInfo
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- CN208293429U CN208293429U CN201820442227.5U CN201820442227U CN208293429U CN 208293429 U CN208293429 U CN 208293429U CN 201820442227 U CN201820442227 U CN 201820442227U CN 208293429 U CN208293429 U CN 208293429U
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- prestressed
- circulatory system
- pore passage
- hole path
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- 238000010276 construction Methods 0.000 title claims abstract description 31
- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 17
- 239000002002 slurry Substances 0.000 claims abstract description 84
- 239000011440 grout Substances 0.000 claims abstract description 37
- 239000011148 porous material Substances 0.000 claims abstract description 37
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 19
- 238000007689 inspection Methods 0.000 claims abstract description 12
- 238000001914 filtration Methods 0.000 claims description 13
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 4
- 239000004568 cement Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000007569 slipcasting Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 210000002435 tendon Anatomy 0.000 description 3
- 240000002853 Nelumbo nucifera Species 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 2
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 229910001651 emery Inorganic materials 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 210000002966 serum Anatomy 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model discloses the prestress hole path pressure grouting circulatory systems in a kind of prestressed reinforced concrete construction, including blender, Double-layer filter type slurry can and pneumatic mortar machine, the filter device for being classified as upper and lower two segment spaces is equipped in the middle part of the Double-layer filter type slurry can, pneumatic mortar machine entrance is connected by madjack pipe with Double-layer filter type slurry can bottom, pneumatic mortar machine outlet is connected by inlet pipe with prestressed pore passage stock inlet, prestressed pore passage slurry output end at the top of pulp circulation loop pipeline and Double-layer filter type slurry can by being connected, the grout outlet and stock inlet of the prestressed pore passage are equipped with control valve and grout inspection instrument, blender is connected by pipeline with Double-layer filter type slurry can lower space, the utility model guarantees that hole path pressure grouting is closely knit with law of connected vessels and circulation loop system, it is stable to slurries index in prestressed pore passage and Grout outlet control valve, low in cost, good environmental protection, high financial profit are closed after grout inspection instrument detection in both ends is up to standard.
Description
Technical field
The invention belongs to bridge concrete construction fields, are related to a kind of prestress hole path pressure grouting equipment, and in particular to a kind of
The prestress hole path pressure grouting circulatory system in prestressed reinforced concrete construction.
Background technique
In prestressed reinforced concrete construction construction process, the main purpose of prestress hole path pressure grouting is:
(1) presstressed reinforcing steel is protected, prevents from corroding；
(2) bond presstressed reinforcing steel effectively with concrete members, with the development of control critical eigenvalue；
(3) and mitigate the load of beam-ends anchorage.
Therefore, prestress hole path pressure grouting construction is particularly important in prestressed reinforced concrete construction, and component on site construction method is at present
After completing prestressing tendon tensioning, using the extra prestressing tendon of emery wheel cuts, the remaining length after presstressed reinforcing steel cuts off must not
Less than 30mm.Presstressed reinforcing steel gap outside anchorage is clogged with cement slurry, so as not to grout and lose grouting pressure.It is reserved when sealing off and covering anchorage
Gas vent.Pressure flush of water is used in duct before mud jacking, with sundries such as granulated slags in evacuation aperture, guarantees that duct is unimpeded.With sky after flushing
Press blows away hole internal water accumulation, and compressed air will be without oil content.But it keeps duct to soak, makes being well combined for cement slurry and hole wall.
Hole path pressure grouting uses Special grouting material, and water-cement ratio uses 0.26-0.28.Practical mixing water is added first in blender
80%-90% starts blender, is uniformly added into whole grouting materials, stirs while adding.Whole powder additions finish, then fastly
Speed stirring 3min, is added the mixing water of remaining 10%-20%, continues to stir 2min.Grouting material is from stirring to indentation duct
Perdurabgility, depending on temperature situation, generally within the scope of 30min~1h.When mud jacking, by inlet pipe slip casting, prestress pipe
Grout outlet freely sprays slurries, closes grout outlet valve, mud jacking when grout outlet ejection slurries index is approximate with stock inlet consistent
Machine holds pressure 3~5 minutes with 0.5MPa, closes prestressed pore passage stock inlet valve, and mud jacking terminates.
But at the scene in work progress, since process itself is existing insufficient, in mud jacking, duct grout outlet directly sprays
Slurries are penetrated, so that: (1) due to the form that prestress pipe is symmetrical arc, especially large span continuous rigid frame bridge box beam, answer in advance
The mud jacking mode of the larger therefore traditional grout outlet free-jetting slurries of power duct both ends vertical curve length is easy to cause hole to say
The not firm problem of existing mud jacking, and the not firm prestressing tendon that will lead to of hole path pressure grouting corrodes, construction pre-stress is insufficient, and then influences engineering
Quality；(2) slurries that grout outlet directly ejects seriously polluted mechanical equipment, the site environment of pier stud, ground storage, to clear
Science and engineering brings bigger difficulty, and especially high pier stud cleaning is not only spent human and material resources, but also the personal safety of cleanup crew
There is also hidden danger.(3) grout outlet free-jetting slurries waste material resources, have deviated from the developing policy of national energy-saving environmental protection.
Utility model content
The main purpose of the utility model is that live mud jacking process is instructed using a kind of prestress hole path pressure grouting circulatory system
Construction, using law of connected vessels and the circulatory system, pore passage dense, environmental protection, saving material when achieving the purpose that mud jacking, simultaneously
The structure for improving slurry can is Double-layer filter type, guarantees the quality of loop slurry.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is:
The prestress hole path pressure grouting circulatory system in a kind of prestressed reinforced concrete construction, it is characterised in that: including double medium filtration
Formula slurry can and pneumatic mortar machine, the Double-layer filter type slurry can middle part are equipped with the filtering dress for being classified as upper and lower two segment spaces
Set, the pneumatic mortar machine entrance is connected by madjack pipe with Double-layer filter type slurry can bottom, pneumatic mortar machine outlet pass through inlet pipe and
Prestressed pore passage stock inlet is connected, and prestressed pore passage slurry output end passes through pulp circulation loop pipeline and Double-layer filter type slurry can top
Portion is connected.
As an improvement, the grout outlet and stock inlet of the prestressed pore passage are equipped with control valve and grout inspection instrument.
As an improvement, further including blender, the blender passes through pipeline and Double-layer filter type slurry can lower space phase
Even.
As an improvement, the inlet pipe and prestressed pore passage connecting pin are equipped with mud jacking mouth.
As an improvement, the filter device is telescopic filtering drawer.
As an improvement, the filter device is the filter screen being superimposed on two layers, the mesh of upper level filter net is greater than lower layer.
As an improvement, the inlet pipe and pulp circulation loop pipeline and prestressed pore passage are fixedly mounted by anchorage.
The utility model beneficial effect is:
This prestress hole path pressure grouting circulatory system mainly has the following characteristics that
(1) when this prestress hole path pressure grouting circulatory system is run, mainly by improved Double-layer filter type slurry can, mud jacking
Machine, inlet pipe, prestressed pore passage and pulp circulation loop pipeline form a set of circulatory system, with law of connected vessels and follow
Loop back path system guarantees that hole path pressure grouting is closely knit, reaches to slurries index stabilization in prestressed pore passage and in the detection of both ends grout inspection instrument
Mark (i.e. both ends slurries index always) closes grout outlet control valve afterwards, holds pressure 3-5 minute with 0.5MPa by pneumatic mortar machine, closes in advance
Stress duct stock inlet control valve, mud jacking process terminate.With such circulatory system construction quality is improved a lot, together
When be greatly enhanced compared to more traditional mud-jacking technology efficiency；
(2) technical principle is easily understood, and this circulatory system controls equipment without high-grade, precision and advanced computer etc., applies convenient for scene
Worker person understands and uses, and is suitble to promote；
(3) this circulatory system controls equipment without high-grade, precision and advanced computer etc., understands convenient for site operation personnel and operates, and protects
It has demonstrate,proved construction site to manage the quality of critical process, system assembling and dismantling are convenient, and save the cost improves work efficiency simultaneously；
(4) improve slurry can structure: setting Double-layer filter type slurry can, loop slurry are entered on slurry can by return
Layer flows into lower layer after slurry can filtering drawer filtering, improves the quality of loop slurry, while also ensuring construction quality；
(5) this circulatory system is simple, and construction cost investment is low, and engineering effort is good, remarkable in economical benefits；
(6) environment protecting is obvious, finds in previous construction: the slurries directly ejected by prestressed pore passage grout outlet are dirty
Mechanical equipment, the site environment for having contaminated pier stud, ground storage, bring bigger difficulty to cleaning work, especially high pier stud is clear
It is clean, it not only spends human and material resources, but also there is also hidden danger for the personal safety of cleanup crew.Pass through the application of this circulatory system, energy
It effectively avoids pollution, while the serum recycle that grout outlet ejects utilizes, and saves material, reduces cost input.
(7) waste of material is avoided so that the slurries of duct grout outlet are recycled due to the presence of circulation loop
And environmental pollution, technology is provided for construction " Civilization Worksite, green building site " and is guaranteed, social benefit is significant.
Detailed description of the invention
Fig. 1 is Continuous Rigid Box Beam mud jacking circulatory system schematic diagram.
Fig. 2 is prestressed concrete Precast T-Beam mud jacking circulatory system schematic diagram.
Fig. 3 is prestress hole path pressure grouting circulatory system partial enlargement diagram.
Fig. 4 is that the prestress hole path pressure grouting circulatory system recycles schematic diagram.
Appended drawing reference: 1- blender, 2- Double-layer filter type slurry can, 3- madjack pipe, 4- pneumatic mortar machine, 5- inlet pipe, 6- control
Valve processed, 7- anchorage, 8- pulp circulation loop pipeline, 9- prestressed pore passage, 10- mud jacking mouth, 11- filter drawer, the inspection of 12- slurries
Survey instrument, 13- bridge pier.
Specific embodiment
The utility model is illustrated with reference to the accompanying drawing
As shown in Figure 1 to Figure 3, a kind of to apply the prestressed pore passage in the prestressed reinforced concrete construction in continuous steel frame box beam
The mud jacking circulatory system, including blender, Double-layer filter type slurry can and pneumatic mortar machine, the Double-layer filter type slurry can middle part are equipped with
It is classified as the filter device of upper and lower two segment spaces, the pneumatic mortar machine entrance passes through madjack pipe and Double-layer filter type slurry can
Bottom is connected, and pneumatic mortar machine outlet is connected by inlet pipe with prestressed pore passage stock inlet, and prestressed pore passage slurry output end passes through pulp
It is connected at the top of circulation loop pipeline and Double-layer filter type slurry can, is equipped with control on the madjack pipe and pulp circulation loop pipeline
Valve processed and grout inspection instrument, the blender is connected by pipeline with Double-layer filter type slurry can lower space, described into slurry
Pipe is equipped with mud jacking mouth with prestressed pore passage connecting pin.The inlet pipe and pulp circulation loop pipeline pass through with prestressed pore passage
Anchorage is fixedly mounted.
In the embodiment, the filter device is telescopic filtering drawer, as a kind of more preferably embodiment, the mistake
Filter device is the filter screen being superimposed on two layers, and the mesh of upper level filter net is greater than lower layer, not only ensure that slurries by filter device
The quality of circulation, and loop slurry can also take residual impurity in prestressed pore passage out of, and be filtered impurity by filter device
It removes, greatly improves slurries compaction quality in prestressed pore passage, guarantee project progress.
As shown in figure 4, in this pre- prestressed reinforced concrete construction when the operation of the prestress hole path pressure grouting circulatory system, mainly by stirring
It mixes machine, Double-layer filter type slurry can, pneumatic mortar machine, inlet pipe, prestressed pore passage and pulp circulation loop pipeline and forms a set of follow
Control valve and grout inspection instrument is arranged in the stock inlet of prestressed pore passage by loop system, using inlet pipe by itself and pneumatic mortar machine
Grout outlet connection, control valve and grout inspection instrument be set in prestress pipe grout outlet, then with pulp circulation loop pipe
Road is connected to Double-layer filter type slurry can upper layer loop slurry filtering tank, and loop slurry flows into double medium filtration after filtering
Lower layer's hole path pressure grouting slurry storage tank of formula slurry can, the outlet of slurries slurry can are connected to pneumatic mortar machine, complete the mud jacking circulatory system
Foundation.After mud jacking starts, this circulatory system is allowed to be operated, when the slurries index and stock inlet one of prestressed pore passage grout outlet
When cause, close prestress pipe grout outlet at control valve, and make pneumatic mortar machine to not less than 0.5Mpa pressure hold lotus 3~
5min pressure maintaining closes stock inlet control valve after completing, and mud jacking terminates.(1) prestressed reinforced concrete construction mesoporous during this
Road mud jacking utilizes law of connected vessels and the circulatory system, it is ensured that mud jacking is closely knit in prestress pipe, guarantees construction quality；(2)
The slurries that grout outlet sprays will loop to Double-layer filter type slurry can impurity screening and (carry out to prestressed pore passage before mud jacking clear
Simultaneously wind is washed, therefore slurries can recycle, furthermore loop slurry is filtered recycling by Double-layer filter type slurry can,
Ensure that the quality of loop slurry), material is saved, and meet environmentally protective construction principle.
(1) system buildup
This prestress hole path pressure grouting circulatory system is related to blender, Double-layer filter type slurry can, pressure when being set up
Pulp grinder, inlet pipe, prestressed pore passage pulp circulation loop pipeline, grout inspection instrument, control valve.Blender and Double-layer filter type
The connection of slurry can lower layer slurry storage tank, the outlet of Double-layer filter type slurry can lower layer and pneumatic mortar machine are attached with madjack pipe, are pressed
The grout outlet of pulp grinder and the stock inlet of prestress pipe are attached with inlet pipe, are examined in prestressed pore passage stock inlet setting slurries
Instrument and control valve are surveyed, grout inspection instrument and control valve be set in prestressed pore passage grout outlet, then by prestressed pore passage
Grout outlet be connected to Double-layer filter type slurry can upper layer loop slurry filtering tank with pulp circulation loop pipeline, loop slurry warp
Lower layer's slurry storage tank is flowed into after filtering, so far, this prestress hole path pressure grouting circulatory system, which is set up, to be completed.
(2) mud jacking starts
Start to carry out hole path pressure grouting after completing prestressed pore passage cleaning and blowing away ponding with wind pressure machine, hole path pressure grouting uses
Special grouting material, water-cement ratio use 0.26-0.28, carry out slurries stirring after feeding, and be stored in Double-layer filter type slurry can,
Pass through inlet pipe, the slip casting into prestress pipe of pumping of prostressed duct mouth again.
(3) mud jacking terminates
When slurries are flowed out from prestressed pore passage grout outlet, slurries flow back to the double-deck mistake by pulp circulation loop pipeline circulation
Filter formula slurry can measures pulp technical indicator, when slurry output end institute by being set to the grout inspection instrument of prestress pipe grout outlet
When slurries technical indicator is consistent with stock inlet slurries technical indicator out, to hold lotus 3~5min pressure maintaining not less than 0.5Mpa pressure, really
Slip casting is full in keeping road, closes prestress pipe stock inlet control valve, so far, mud jacking terminates.
Claims (7)
1. the prestress hole path pressure grouting circulatory system in a kind of prestressed reinforced concrete construction, it is characterised in that: including Double-layer filter type
Slurry can and pneumatic mortar machine, the Double-layer filter type slurry can middle part are equipped with the filtering dress for being classified as upper and lower two segment spaces
Set, the pneumatic mortar machine entrance is connected by madjack pipe with Double-layer filter type slurry can bottom, pneumatic mortar machine outlet pass through inlet pipe and
Prestressed pore passage stock inlet is connected, and prestressed pore passage slurry output end passes through pulp circulation loop pipeline and Double-layer filter type slurry can top
Portion is connected.
2. the prestress hole path pressure grouting circulatory system in a kind of prestressed reinforced concrete construction as described in claim 1, it is characterised in that:
The grout outlet and stock inlet of the prestressed pore passage are equipped with control valve and grout inspection instrument.
3. the prestress hole path pressure grouting circulatory system in a kind of prestressed reinforced concrete construction as claimed in claim 2, it is characterised in that:
It further include blender, the blender is connected by pipeline with Double-layer filter type slurry can lower space.
4. the prestress hole path pressure grouting circulatory system in a kind of prestressed reinforced concrete construction as claimed in claim 2, it is characterised in that:
The inlet pipe and prestressed pore passage connecting pin are equipped with mud jacking mouth.
5. the prestress hole path pressure grouting circulatory system in a kind of prestressed reinforced concrete construction as claimed in claim 2, it is characterised in that:
The filter device is telescopic filtering drawer.
6. the prestress hole path pressure grouting circulatory system in a kind of prestressed reinforced concrete construction as claimed in claim 2, it is characterised in that:
The filter device is the filter screen being superimposed on two layers, and the mesh of upper level filter net is greater than lower layer.
7. the prestress hole path pressure grouting circulatory system in a kind of prestressed reinforced concrete construction as claimed in claim 2, it is characterised in that:
The inlet pipe and pulp circulation loop pipeline and prestressed pore passage are fixedly mounted by anchorage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820442227.5U CN208293429U (en) | 2018-03-30 | 2018-03-30 | The prestress hole path pressure grouting circulatory system in a kind of prestressed reinforced concrete construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820442227.5U CN208293429U (en) | 2018-03-30 | 2018-03-30 | The prestress hole path pressure grouting circulatory system in a kind of prestressed reinforced concrete construction |
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| Publication Number | Publication Date |
|---|---|
| CN208293429U true CN208293429U (en) | 2018-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820442227.5U Expired - Fee Related CN208293429U (en) | 2018-03-30 | 2018-03-30 | The prestress hole path pressure grouting circulatory system in a kind of prestressed reinforced concrete construction |
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| Country | Link |
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| CN (1) | CN208293429U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2018
- 2018-03-30 CN CN201820442227.5U patent/CN208293429U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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|---|---|---|---|
| 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: 20181228 |