CN208845174U - A kind of vertical shaft slide model concrete calendering device - Google Patents
A kind of vertical shaft slide model concrete calendering device Download PDFInfo
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- CN208845174U CN208845174U CN201821498351.XU CN201821498351U CN208845174U CN 208845174 U CN208845174 U CN 208845174U CN 201821498351 U CN201821498351 U CN 201821498351U CN 208845174 U CN208845174 U CN 208845174U
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- vertical shaft
- press polish
- calendering device
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Abstract
The utility model provides a kind of vertical shaft slide model concrete calendering device, can be along the vertical shaft slide model that vertical shaft inner wall slides up and down including being arranged in vertical shaft；Annular first workbench connected to it is provided with below vertical shaft slide model；Arc track is provided on first workbench, arc track is coaxial with vertical shaft；Being additionally provided with can the arcuately mobile walking dolly of track；It is provided on walking dolly for the calendering device to vertical shaft inner wall press polish；It is additionally provided on walking dolly for the spray equipment to vertical shaft inner-wall spraying；The utility model meets vertical shaft circular cross section curvature and finish construction requirement, and tiny stomata is eliminated in prevention waterwork concrete early stage moulding crack.
Description
Technical field
The utility model relates to a kind of concrete surface processing unit and methods, and in particular to a kind of vertical shaft slide model concrete
Calendering device.
Background technique
With the continuous improvement of national economy level, electric utility both domestic and external is also had been greatly developed；Power station
Occupy very big specific gravity in power industry, construction quality has important influence for the production of electric power enterprise；Water channeling type
The positions such as diversion tunnel, surge shaft, power tunnels, the power tunnel vertical shaft in power station are frequently with concrete lining structure；Sluicing is built
The out-of-flatness for building object surface has more significant impact to cavitation corrosion cavitation inception, and cavitation corrosion is that waterpower industry is dedicated to avoiding or subtract
Weak phenomenon.
With the continuous development for having run-of-river power station to build, the new work of new technology is continued to bring out in diversion tunnel lining construction
Skill, Water diversion tunnel concrete construction quality are continuously improved；The permanent operational safety of engineering is promoted, largely improving to extend makes
With life cycle, operation maintenance cost has been saved.
Built engineering operation practice have shown that, even if design is accurate, the advanced science of material, proportion design, construction technology is stringent；
After longtime running, the concrete surface quality problem of construction period will gradually amplify under time dimension, sluice, diversion
Building concrete total surface has different degrees of abrasion and cavitation corrosion.
Diversion tunnel lining construction mainly uses trolley segmentation one-off construction to pour both at home and abroad at present, and power generation vertical shaft is adjusted
Kill-job etc. is frequently with form construction technology.The quality of the cast-in-place lining concrete construction quality of sliding formwork, directly influences reinforced concrete
Bearing capacity, durability and the globality of soil structure, therefore each construction link must be done a good job of it in construction, to ensure concrete
Construction quality.Appearance quality trait after sliding formwork or the demoulding of needle beam trolley template is to be related to building surface beauty and knot
The critical process of structure quality；Sliding formwork cast-in-place concrete demoulding after initial set be surface-treated in time during final set, certain journey
Fabric structure quality can be improved on degree.Moulding contraction fissure and subtle stomata especially are handled in concrete setting getting up early,
Improving concrete integral smoothness reduces surface roughness, can weaken hydraulic structure cavitation erosion to a certain extent.
Germany professor Uwe Drewes summarizes some engineerings in the world since cavitation occurs for irregularity degree, cavitation corrosion is asked
Topic；The cavitation property for analyzing some out-of-flatness surfaces, when also making various values different in flow rate, the appearance of uneven entirety upstream face
Perhaps the gradient has also been proposed to the requirement of smooth concrete surface and guarantees the measures such as air mixing corrosion reducing.
Weakening control measure to cavitation corrosion both at home and abroad at present is mainly four aspects: selecting reasonable overcurrent side when (1) designing
Wall body type；(2) flatness improved construction technology, improve overcurrent side wall；(3) the stronger material of etch resistant properties is selected；(4) aeration
Corrosion inhibitor.Wherein in terms of the flatness for improving construction technology raising overcurrent wall, often improved again after concrete formation smooth
Degree, finish do not propose effective technological measure.Only occurs the work handled about press polish in building construction or pavement concrete
Skill technology, and waterwork is more in the industry from concrete proportioning, template and vibrates etc. and to improve concrete finish
And flatness, do not have also to the technique for doing press polish processing after concrete surface demoulding, to diversion tunnel and power tunnel vertical shaft circle
Shape or arc-shaped sections do anaphase effect processing almost without.
In the construction of power station power tunnels vertical shaft slide model, concrete surface finishing processing is newly skidded off, is to be related to knot
The process of structure appearance and protective layer quality must carry out concrete surface processing work immediately after concrete demoulding.But at present
About the treatment measures after demoulding in existing construction technology, magma manually only is done to the apparent mass defect in part and flattens or repairs
It is handled, is that smooth being generally not processed only need to reinforce maintenance for visual examination, not to early stage moulding
It shrinks micro-cracks, tiny stomata etc. and does system overall treatment.
Utility model content
The utility model provide it is a kind of meet vertical shaft circular cross section curvature and finish construction requirement, prevention waterwork is mixed
Solidifying soil early stage moulding crack, the vertical shaft slide model concrete calendering device for eliminating tiny stomata.
The technical solution adopted in the utility model is:
A kind of vertical shaft slide model concrete calendering device, can be along the vertical shaft that vertical shaft inner wall slides up and down including being arranged in vertical shaft
Sliding formwork；Annular first workbench connected to it is provided with below vertical shaft slide model；Curved track is provided on first workbench
Road, arc track are coaxial with vertical shaft；Being additionally provided with can the arcuately mobile walking dolly of track；It is provided with and is used on walking dolly
To the calendering device of vertical shaft inner wall press polish；It is additionally provided on walking dolly for the spray equipment to vertical shaft inner-wall spraying.
Further, the calendering device includes press polish piece, press polish screw rod and press polish bar；Press polish screw rod one end and press polish piece
Connection, the other end and the scalable connection in press polish bar one end；The press polish bar other end and walking dolly are hinged.
Further, the spray equipment includes slurry storage tank, force (forcing) pump and grouting pump；Force (forcing) pump and grouting pump connect
Connect slurry storage tank；Grouting pump is also connected to Grouting Pipe one end, and the Grouting Pipe other end connects shower head pipe；Shower head pipe is arranged in press polish
Piece corresponding position.
Further, the walking dolly includes carriage frame, and carriage frame lower part is provided with to be matched with arc track
Walking position-limited wheel；Motor can be connected along the traveling wheel that it is moved, traveling wheel by being provided on carriage frame.
Further, pressure gauge is provided in the Grouting Pipe.
The beneficial effects of the utility model are:
(1) the utility model can realize mechanized operation, and stability meets large area curved surface concrete surface press polish construction and wants
It asks, improves construction quality and safety guarantee；
(2) the utility model can realize the secondary press polish or multiple press polish after sliding formwork demoulding, the press polish after initial set before final set,
Early stage moulding contraction fissure can be effectively eliminated；It, can be to a certain degree in subsequent reinforcement and under conditions of guarantee concrete fog curing
Upper improvement concrete durability；
(3) it is microcosmic can to eliminate the subtle contraction fissure of concrete surface, stomata etc. after slding form operation demoulds for the utility model
Defect；
(4) the utility model newly skids off concrete surface as sliding formwork promotes follow-up processing, can reach the complete of continuous system
The press polish vertical shaft concrete in face；Whole winding shaft concrete flatness and finish then improve the wash-resistant and abrasion-resistant of concrete
Performance.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model.
Fig. 2 is calendering device work operating condition sectional schematic diagram in the utility model.
Fig. 3 is the utility model press polish bar and walking dolly connection schematic diagram.
Fig. 4 is calendering device structural schematic diagram in the utility model.
Fig. 5 is walking dolly structural schematic diagram in the utility model.
Fig. 6 is spray equipment structural schematic diagram in the utility model.
In figure: 1- vertical shaft slide model, the second workbench of 2-, the first workbench of 3-, 4- vertical shaft inner wall, 5- calendering device,
501- press polish piece, 502- press polish screw rod, 503- press polish bar, 6- shaft excavation branch mask, 7- walking dolly, 701- traveling wheel,
702- motor, 703- carriage frame, 704- walking position-limited wheel, 8- arc track, 9- spray equipment, 901- slurry storage tank,
902- force (forcing) pump, 903- grouting pump, 904- pressure gauge, 905- Grouting Pipe, 906- shower head pipe.
Specific embodiment
The utility model is described further in the following with reference to the drawings and specific embodiments.
As shown in figures 1 to 6, a kind of vertical shaft slide model concrete calendering device, including setting can be along vertical shaft inner wall 4 in vertical shaft
The vertical shaft slide model 1 slided up and down；Annular first workbench 3 connected to it is provided with below vertical shaft slide model 1；First work is flat
Arc track 8 is provided on platform 3, arc track 8 and vertical shaft are coaxial；Being additionally provided with can the arcuately mobile walking dolly of track 8
7；It is provided on walking dolly 7 for the calendering device 5 to 4 press polish of vertical shaft inner wall；It is additionally provided on walking dolly 7 for perpendicular
The spray equipment 9 that well inner wall 4 sprays.
Calendering device 5 includes press polish piece 501, press polish screw rod 502 and press polish bar 503；502 one end of press polish screw rod and press polish piece
501 connections, the other end and the scalable connection in 503 one end of press polish bar；503 other end of press polish bar and walking dolly 7 are hinged.
Spray equipment 9 includes slurry storage tank 901, force (forcing) pump 902 and grouting pump 903；Force (forcing) pump 902 and grouting pump 903
It is all connected with slurry storage tank 901；Grouting pump 903 is also connected to 905 one end of Grouting Pipe, and 905 other end of Grouting Pipe connects shower head pipe
906；Shower head pipe 906 is arranged in 501 corresponding position of press polish piece.
Walking dolly 7 includes carriage frame 703, and 703 lower part of carriage frame is provided with the walking matched with arc track 8
Position-limited wheel 704；Motor 702 can be connected along the traveling wheel 701 that it is moved, traveling wheel 701 by being provided on carriage frame 703.
Pressure gauge 904 is provided in Grouting Pipe 905.
In use, arc track 8 is arranged on the first workbench 3 of 1 lower section of vertical shaft slide model；Pass through bolt and
The connection of one workbench 3；Arc-shaped guide rail 8 is thrown arc by channel steel merogenesis and is process, and track arc and vertical shaft are concentric circles；It walks small
The traveling wheel 701 of vehicle 7 connects 702 transmission shaft of motor；Motor 702 and transmission shaft are arranged by bolt in carriage frame 703
On；703 lower part two sides of carriage frame are provided with locating wheel 704；Locating wheel 704 is made of cylindrical rod connection bearing, is passed through
The fixed simultaneously adjusting position of fastening bolt, contacts Location vehicle wheel 704 with track side and has the function that accurate limit；Motor
702 connection attaching plugs, and open-close on-off and varying speed switch are installed, for adjusting the speed of travel of walking dolly 7, to adjust
Save press polish plastering speed；Motor 702 drives electric wire to be connected to sliding formwork source box to the center of circle through lower wall suspension lower part, to avoid
7 circular motion of walking dolly causes wire intertwist.
Spray equipment 9, which is bolted, to be arranged on walking dolly 7, is moved in a circle together with trolley；With grouting pump
Based on 703；Slurry storage tank 901 is connect with grouting pump 903 by hose, and grout outlet is connected with force (forcing) pump 902；Grouting Pipe
It is provided with pressure gauge 904 on 905, is hose, one end connects 904 outlet end of pressure gauge, and the other end and hard shower head pipe 906 are soft
Property connection.
503 one end of press polish bar is hinged using power-assisted opening/closing device and walking dolly 7, and the other end is connect with press polish screw rod 502；Pressure
Chevilled silk bar connects press polish piece 501；Press polish bar 503 is opened and closed by opening/closing device, forms open and flat work and two kinds of 90-degree bent inoperative
Operating condition；Power-assisted opening/closing device uses existing finished product gate-type opening/closing device；Press polish piece 501 is contacted using rigid plasterer's trowel with concrete
The arc duck's foot shape that end is 120 °, back and press polish screw rod 502 are hinged.
In use process, calendering device 5 operation the following steps are included:
First on 1 the first workbench of lower part 3 of vertical shaft slide model install arc track 8, and measure review ensure track with
Vertical shaft is concentric circles；
Walking dolly 7 is installed；
Press polish bar 503 and press polish piece 501 are installed；
Installation and debugging slurries spray equipment 9；
Adjust press polish bar 503, shower head pipe 906 to vertical shaft inner wall 4 and contacts；
After the demoulding of 1 upward sliding of vertical shaft slide model, starting walking dolly 7 does uniform circular motion, drive press polish bar 503,
Shower head pipe 906 does warehouse calendering applications in the concrete surface newly skidded off；
According to the press polish of setting speed rule after a few, check that static pressure processing is done after Local Artificial processing in surface；
Press polish bar 503 and shower head pipe 906 are withdrawn, the processing of subsequent cycle concrete surface is waited.
After the press polish bar 503 of flattened operating attitude is in place, press polish piece 501 and concrete are made by the adjusting of press polish screw rod 502
Face contact；Shower head pipe 906 is fixed on press polish bar 503, it is mixed in conjunction with what is newly skidded off by the press polish bar 503 of flattened operating attitude
Solidifying soil face magma situation, can during circular motion in the concrete surface spray cement magma slurries of 501 front end of press polish piece,
Under 501 pressure of the press polish piece effect of subsequent circular motion, calendering applications are carried out.
A kind of vertical shaft slide model concrete calendering method, comprising the following steps:
Step 1: configuration cement slurry slurries, it will be in grout pouring to slurry storage tank 901；The cement grout ratio of mud used
It is 0.35~0.5, cement preferably selects color identical as concrete magma cement, does not generate obvious color difference；
Step 2: by adjusting 502 length adjustment press polish piece 501 of press polish screw rod and 4 order of contact of vertical shaft inner wall；Press polish piece
120 ° of duck's foot curvature.General value is 45 ° ~ 60 ° range values, weight at a slow speed when go to be worth greatly, get the small value when low pressure is quick；Choosing
Suitable 7 revolving speed of walking dolly is selected, general value range is in 15 ~ 30m/s；
Step 3: after the demoulding of 1 upward sliding of vertical shaft slide model, starting walking dolly 7, walking dolly 7 arcuately transport by track 8
Dynamic process, cement slurry slurries spray to vertical shaft inner wall 4 by shower head pipe 906, carry out first pressing by press polish piece 501；First pressing should be selected
It selects slower speed to carry out, general first pressing carries out one time；It is suitably filled spray slurries according to concrete surface pulp situation, it can be according to reality
Locally supplement smears pressure to border situation；Cement slurry has spray equipment 9 to pressurize even application to corresponding concrete surface, and spray range is pressure
501 contact point of mating plate is to front end 10cm or so.
Step 4: after the completion of first pressing, being pressed in progress；Middle pressure selection middling speed contacts twice of press polish, and middling speed press polish is preferably used to make
Industry；
Step 5: being carried out before cement slurry slurries final set, reduce by 7 speed of walking dolly and carry out receipts light；It is carried out after the completion of middle pressure
Presentation quality checks that last pressure-sizing one time, light processing is quickly received in the small contact of 30min before final set comprehensively.
It is different according to building concrete match ratio and intensity, select different press polish time interval and corresponding speed
Rate, the too early or too late quality problems that can all cause concrete surface dusting, play ash；Before first pressing, firstly for local defect
Obvious position uses manual type precompressed repairing treatment.
The operating condition of the artificial plastering metope of the utility model simulation drives plasterer's trowel to pour walling to new using equipment connecting rod
Face carries out press polish plastering, substitutes artificial realization mechanization, and the accurately press polish for completing the system of young concrete large area is smeared
Surface construction.When press polish, press polish piece 501 at the uniform velocity rotates on planned orbit along concrete surface with one heart, concrete surface and press polish piece
501 extrusion frictions generate slight plastic deformation, micro-cracks, bubble etc. are microcosmic by newly-laid concrete magma under press polish effect
Defect is filled and led up press polish, so that the surface of subtle injustice be made further to obtain improving the mesh for reaching and improving finish and flatness
's.
The triumphant power station Fu Xia under Zambia, positioned at the river Kafue of Lusaka southeast about 90km, on away from upper triumphant rich gorge dam
17.3km, tail water 6km, under away from triumphant Fu Heyu Zambezi intersection about 55km.
This engineering is based on generating electricity, 83,000,000 m3 of storage capacity, 5 franc turbines of installing, single-machine capacity 150MW, total installed capacity
Capacity 750MW.Engineering main structures include grinding coagulation soil barrage, flood relief through dam system, right bank diversion system, surge shaft
With ground type workshop.Diversion system includes intake tower, diversion tunnel, surge shaft, power tunnel vertical shaft and flat section up and down.Diversion tunnel
Overall length 4476.52m, surge shaft well depth are 133.2m, and it is 50.8m that well, which digs maximum span, and common paragraph span is 43.5m, pressure regulation
Bottom is connect with 5 power tunnels, and five power tunnel overall lengths are 3217.6 meters, and power station sets 5 power generation vertical shafts, axis spacing altogether
For 17m.Single power generation vertical shaft depth 113.35m, digging diameter 6.0m, diameter is 5.8m, full section armored concrete after preliminary bracing
Lining cutting, diameter is 4.8m after lining cutting.Surge shaft and power tunnel vertical shaft use slding form operation.
The utility model is designed and is applied in the intake tunnel vertical shaft concrete lining of water channeling type power station, using machinery
Change and replace manual type, in conjunction with the concrete surface that the synchronous comprehensive and systematic processing of follow-up of the sliding construction of sliding formwork is newly sliding, in conventional cunning
Vertical shaft concrete surface flatness and finish are improved on the basis of mould concrete technology, and it is resistance to then to improve its anti-impact to a certain extent
Grind performance.
Expert group passes the engineering project sliding formwork special scheme at present, it is believed that technical feasibility.Digging in-situ work
Terminate simultaneously to enter the concrete lining stage comprehensively, the utility model technology expectation can reach concrete surface two after sliding formwork demoulding
Secondary press polish requirement.
The utility model has higher mechanized operation degree, and stability meets large area curved surface concrete surface press polish construction
It is required that improving the quality and safety guarantee of construction；Secondary press polish or multiple press polish after reinforcing sliding formwork demoulding, especially in initial set
Press polish before final set afterwards can effectively eliminate early stage moulding contraction fissure, in the subsequent item reinforced and guarantee concrete fog curing
Under part, this vertical shaft concrete calendering techniques can improve concrete durability to a certain extent；It is dedicated using vertical shaft slide model concrete
Calendering equipment cooperation is artificial to carry out early stage processing, and concrete surface is subtle after elimination slding form operation demoulds before concrete final set
The microdefects such as contraction fissure, stomata.This technology equipment newly skids off concrete surface as sliding formwork promotes follow-up processing, the company of can reach
The comprehensive press polish vertical shaft concrete of continuous system, whole winding shaft flatness and finish then improve the anti-of concrete
Rush wear-resisting property.
Claims (5)
1. a kind of vertical shaft slide model concrete calendering device, which is characterized in that can be along vertical shaft inner wall (4) in vertical shaft including setting
The vertical shaft slide model (1) of lower slider；Annular first workbench (3) connected to it is provided with below vertical shaft slide model (1)；First work
Make to be provided with arc track (8) on platform (3), arc track (8) and vertical shaft are coaxial；Being additionally provided with arcuately to move track (8)
Dynamic walking dolly (7)；It is provided on walking dolly (7) for the calendering device (5) to vertical shaft inner wall (4) press polish；It walks small
The spray equipment (9) for spraying to vertical shaft inner wall (4) is additionally provided on vehicle (7).
2. a kind of vertical shaft slide model concrete calendering device according to claim 1, which is characterized in that the calendering device
It (5) include press polish piece (501), press polish screw rod (502) and press polish bar (503)；Press polish screw rod (502) one end and press polish piece (501)
Connection, the other end and the scalable connection in press polish bar (503) one end；Press polish bar (503) other end and walking dolly (7) are hinged.
3. a kind of vertical shaft slide model concrete calendering device according to claim 2, which is characterized in that the spray equipment (9)
Including slurry storage tank (901), force (forcing) pump (902) and grouting pump (903)；Force (forcing) pump (902) and grouting pump (903) are all connected with slurry
Liquid holding vessel (901)；Grouting pump (903) is also connected to Grouting Pipe (905) one end, and Grouting Pipe (905) other end connects shower head pipe
(906)；Shower head pipe (906) is arranged in press polish piece (501) corresponding position.
4. a kind of vertical shaft slide model concrete calendering device according to claim 1, which is characterized in that the walking dolly
It (7) include carriage frame (703), carriage frame (703) lower part is provided with the walking position-limited wheel matched with arc track (8)
(704)；Motor can be connected along the traveling wheel (701) that it is moved, traveling wheel (701) by being provided on carriage frame (703)
(702)。
5. a kind of vertical shaft slide model concrete calendering device according to claim 3, which is characterized in that the Grouting Pipe (905)
On be provided with pressure gauge (904).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821498351.XU CN208845174U (en) | 2018-09-13 | 2018-09-13 | A kind of vertical shaft slide model concrete calendering device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821498351.XU CN208845174U (en) | 2018-09-13 | 2018-09-13 | A kind of vertical shaft slide model concrete calendering device |
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| Publication Number | Publication Date |
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| CN208845174U true CN208845174U (en) | 2019-05-10 |
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ID=66372938
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| CN201821498351.XU Active CN208845174U (en) | 2018-09-13 | 2018-09-13 | A kind of vertical shaft slide model concrete calendering device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026013A (en) * | 2018-09-13 | 2018-12-18 | 中国水利水电第五工程局有限公司 | A kind of vertical shaft slide model concrete calendering device and calendering method |
| CN109026013B (en) * | 2018-09-13 | 2024-09-24 | 中国水利水电第五工程局有限公司 | Vertical shaft slip form concrete calendaring device and calendaring method |
-
2018
- 2018-09-13 CN CN201821498351.XU patent/CN208845174U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026013A (en) * | 2018-09-13 | 2018-12-18 | 中国水利水电第五工程局有限公司 | A kind of vertical shaft slide model concrete calendering device and calendering method |
| CN109026013B (en) * | 2018-09-13 | 2024-09-24 | 中国水利水电第五工程局有限公司 | Vertical shaft slip form concrete calendaring device and calendaring method |
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