CN115532670B - Construction method for reducing permeability of post-cast strip - Google Patents
Construction method for reducing permeability of post-cast strip Download PDFInfo
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- CN115532670B CN115532670B CN202211327207.0A CN202211327207A CN115532670B CN 115532670 B CN115532670 B CN 115532670B CN 202211327207 A CN202211327207 A CN 202211327207A CN 115532670 B CN115532670 B CN 115532670B
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- 238000010276 construction Methods 0.000 title claims abstract description 34
- 230000035699 permeability Effects 0.000 title claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 29
- 239000010959 steel Substances 0.000 claims abstract description 29
- 238000007667 floating Methods 0.000 claims abstract description 21
- 239000002002 slurry Substances 0.000 claims abstract description 20
- 239000012535 impurity Substances 0.000 claims abstract description 12
- 239000004567 concrete Substances 0.000 claims abstract description 8
- 238000004381 surface treatment Methods 0.000 claims abstract description 7
- 238000007664 blowing Methods 0.000 claims abstract description 4
- 238000004140 cleaning Methods 0.000 claims abstract description 4
- 239000000428 dust Substances 0.000 claims abstract description 4
- 238000005498 polishing Methods 0.000 claims abstract description 4
- 239000000843 powder Substances 0.000 claims abstract description 4
- 238000005406 washing Methods 0.000 claims abstract description 4
- 239000003921 oil Substances 0.000 claims description 49
- 238000007789 sealing Methods 0.000 claims description 35
- 238000013519 translation Methods 0.000 claims description 17
- 239000010720 hydraulic oil Substances 0.000 claims description 9
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 9
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract description 8
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/16—Rigid blades, e.g. scrapers; Flexible blades, e.g. wipers
- B08B1/165—Scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6807—Expansion elements for parts cast in situ
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention belongs to the technical field of post-cast strips, and particularly relates to a construction method for reducing the permeability of a post-cast strip, which comprises the following steps: step one, steel bar surface treatment: removing impurities on the surfaces of the upper-layer steel bars and the lower-layer steel bars in the post-cast strip before pouring concrete; step two, floating slurry grinding treatment: polishing the floating slurry on the surfaces of the components on the two sides of the post-cast strip to enable the surfaces of the components to be flat; step three, cleaning impurities on the bottom layer: removing impurities and floating slurry powder accumulated at the bottom of the post-cast strip by a washing and blowing dust remover; and step two, the construction device for reducing the permeability of the post-cast strip is matched to complete the step. The invention can fully treat the surfaces of the components above and below the reinforcing steel bar, avoids the residual floating slurry, and the strip-shaped file is always attached to the vertical surface of the component in the floating slurry treatment process, so that the floating slurry on the surface of the component can be uniformly treated at one time, and the construction efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of post-cast strips, and particularly relates to a construction method for reducing the permeability of a post-cast strip.
Background
The post-cast strip is a concrete strip reserved at corresponding positions of a foundation slab, a wall and a beam according to design or construction specification requirements for preventing a reinforced concrete structure from generating harmful cracks due to nonuniform self shrinkage or nonuniform settlement in building construction. The post-cast strip temporarily divides the structure into a plurality of parts, after the internal shrinkage of the member, concrete is poured into the post-cast strip after a plurality of times, and the structure is connected into an integral zone.
The post-cast strip is before the pouring, and unevenness's laitance can exist on the surface of its both sides component, if direct casting concrete, the concrete can't be with both sides component surface abundant contact, leads to having the gas pocket between post-cast strip and the both sides component, can greatly increased infiltration's probability in the later stage use. Therefore, before casting the post-cast strip, the floating slurry on the surfaces of the two side members needs to be ground, at present, the step is manually operated by a constructor through a file, and the constructor finds that the following problems exist in the actual construction process by simply depending on manual operation: (1) Because the upper and lower layers of reinforcing mesh are arranged in the post-cast strip, an operator can adjust the angle of the file, but the surfaces of the components above and below the reinforcing mesh are difficult to be fully processed all the time, so that the condition of floating slurry residue occurs; (2) It is difficult to guarantee that the file is in vertical state all the time when artifical use file handles laitance, when there is the contained angle in the vertical surface of file and component, is difficult to guarantee to handle evenly to component surface laitance, needs to carry out secondary treatment, wastes time and energy.
Disclosure of Invention
In order to solve the technical problem, the invention adopts the following technical scheme:
a construction method for reducing the permeability of a post-cast strip comprises the following steps:
step one, steel bar surface treatment: and removing impurities on the surfaces of the upper-layer steel bar and the lower-layer steel bar in the post-cast strip before pouring concrete.
Step two, floating slurry grinding treatment: and (4) polishing the floating slurry on the surfaces of the components on the two sides of the post-cast strip to enable the surfaces of the components to be flat.
Step three, cleaning impurities on the bottom layer: and removing impurities and laitance powder accumulated at the bottom of the post-cast strip by a washing and blowing dust remover.
The construction device for reducing the permeability of the post-cast strip is matched in the second step and comprises a strip-shaped tool apron, a plurality of strip-shaped files penetrating through the tool apron are horizontally arranged on the tool apron, the strip-shaped files are in sliding fit with the tool apron along the length direction of the strip-shaped files, and the adjacent strip-shaped files are mutually attached; the cutter holder is provided with a limiting component used for limiting the position of the strip-shaped file relative to the cutter holder.
The construction device for reducing the permeability of the post-cast strip further comprises an inverted L-shaped frame, a handle and a driving assembly are mounted on the L-shaped frame, and the driving assembly is used for driving the cutter holder to move along the length direction of the strip file; the L-shaped rack is provided with an adjusting assembly, the adjusting assembly is used for adjusting the strip-shaped file along the horizontal displacement perpendicular to the L-shaped rack, the adjusting assembly comprises a vertical plate, and a locking assembly is arranged on the vertical plate.
As a preferable technical scheme of the invention, the strip-shaped file is fixedly provided with an anti-falling strip with a T-shaped section, and the anti-falling strip penetrates through the cutter holder and is in sliding fit with the cutter holder.
As a preferred technical scheme of the invention, the limiting assembly comprises an oil cavity arranged in the cutter holder, the top surface of the cutter holder is provided with an air groove communicated with the oil cavity, and the top end of the air groove is provided with a detachable sealing plug; the oil pipe that communicates the oil pocket is horizontally and fixedly installed on the surface of the tool apron corresponding to the position of each strip-shaped file, the oil pipe is parallel to the strip-shaped files, one end, away from the tool apron, of the oil pipe is in sliding fit with the sealing rod, the connecting arm is fixedly installed at one end, located outside the oil pipe, of the sealing rod, and the connecting arm is fixedly connected to the back face of the corresponding strip-shaped file.
As a preferred technical scheme of the invention, a strip-shaped sealing plate is slidably mounted on the oil pipe, and the sealing plate is used for blocking the inside of the oil pipe so as to limit the mutual flow of hydraulic oil in the oil pipe and hydraulic oil in an oil cavity; the tip of each closing plate is fixed mounting jointly has the control panel, rotates on the blade holder to install two control screw rods that run through the control panel with thread fit.
As a preferable technical scheme of the invention, the inner wall of the oil pipe is fixedly provided with a stop dog matched with the end surface of the sealing rod.
As a preferred technical scheme of the invention, the driving assembly comprises two round rods which horizontally slide along the length direction of the strip-shaped file and penetrate through the L-shaped rack, one ends of the two round rods, which are close to the cutter holder, are jointly and fixedly provided with a translation plate, and the translation plate is fixedly connected to the cutter holder; the other end of the round rod is fixedly provided with an end plate, and an expansion spring is fixedly sleeved between the end plate and the L-shaped frame.
As a preferred technical scheme, a vertical wedge-shaped plate is fixedly mounted on the surface of the translation plate, a fixed table is mounted on the L-shaped rack, a lifting rod is vertically and slidably mounted on the fixed table, and a roller which is in rolling fit with an inclined surface of the wedge-shaped plate is rotatably mounted at the bottom end of the lifting rod; a baffle matched with the L-shaped rack is fixedly arranged on one side of the round rod close to the translation plate.
As a preferred technical scheme of the invention, the adjusting assembly further comprises an elastic telescopic column horizontally and fixedly arranged on the vertical plate, and the end part of a telescopic section of the elastic telescopic column is fixedly connected to the L-shaped frame; the adjusting device comprises a vertical plate, wherein two sides of the vertical plate are fixedly provided with a \ 21274;, an adjusting groove in sliding fit with one end of the adjusting frame is formed in the position, corresponding to the adjusting frame, of the L-shaped rack, an adjusting plate in surface fit with the adjusting frame is slidably mounted at one end, close to the vertical plate, of the adjusting groove, an adjusting screw is mounted at the position, corresponding to each adjusting plate, of the L-shaped rack, and the adjusting screw is in threaded fit with the L-shaped rack and is in running fit with the adjusting plate at one end, located in the adjusting groove, of the adjusting screw.
As a preferable technical scheme of the invention, the locking assembly comprises a first arc-shaped plate which is vertically and slidably installed on the surface of the vertical plate far away from the L-shaped rack, and a second arc-shaped plate is slidably matched with the bottom end surface of the first arc-shaped plate.
The invention has at least the following beneficial effects: (1) According to the invention, the floating slurry on the surface of the member is treated by the plurality of horizontal bar-shaped files, and the bar-shaped files can fully treat the surfaces of the member above and below the reinforcing steel bar under the condition of not contacting with the reinforcing steel bar, so that the condition of residual floating slurry is avoided; and the strip-shaped file is always attached to the vertical surface of the member in the treatment process of the laitance, so that the laitance on the surface of the member can be uniformly treated at one time, and the construction efficiency is improved.
(2) The limiting assembly can limit the position of each strip-shaped file relative to the tool apron so as to prevent the strip-shaped files from moving relative to the tool apron under the reaction force of the laitance in the process that the tool apron drives the strip-shaped files to move horizontally, so that the strip-shaped files are not in contact with the reinforcing steel bars, and the laitance on the surfaces of the components above and below the reinforcing steel bars can be treated.
(3) According to the invention, after the vertical plate is locked on the steel bar through the locking assembly, the displacement of the L-shaped frame, the driving assembly, the tool apron and the strip-shaped file along the direction perpendicular to the vertical surface of the member is adjusted through the adjusting assembly, namely, the maximum feeding amount of the strip-shaped file along the direction perpendicular to the vertical surface of the member is adjusted, so that the uniform treatment degree of the strip-shaped file on each position on the vertical surface of the member is ensured.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a step diagram of a construction method for reducing the permeability of a post-cast strip in an embodiment of the invention.
Fig. 2 is a schematic first perspective view of a construction apparatus for reducing the permeability of a post-cast strip according to an embodiment of the present invention.
Fig. 3 is an enlarged schematic view of a point a in fig. 2.
Fig. 4 is a schematic perspective view of a second construction device for reducing the permeability of a post-cast strip according to an embodiment of the present invention.
Fig. 5 is an enlarged schematic view of B in fig. 4.
FIG. 6 is a front view of a construction apparatus for reducing post-cast strip permeability in an embodiment of the present invention.
Fig. 7 is an enlarged schematic view at C in fig. 6.
FIG. 8 is a top view of a construction apparatus for reducing post-cast strip permeability in an embodiment of the present invention.
FIG. 9 is a front view of a portion of the interior of the tool holder in an embodiment of the invention.
FIG. 10 is a top view of a portion of the internal structure of an oil pipe in an embodiment of the present invention.
FIG. 11 is a view showing the working coverage (hatched portion) of the strip file in the first working state according to the embodiment of the present invention.
FIG. 12 is a view showing the operational coverage (hatched portion) of the strip file in the second operational state according to the embodiment of the present invention.
In the figure: 1. a tool apron; 2. a strip file; 3. a limiting component; 301. an oil chamber; 302. an air tank; 303. a sealing plug; 304. an oil pipe; 305. a sealing rod; 306. a connecting arm; 307. a sealing plate; 308. a control panel; 309. controlling the screw; 310. a stopper; 4. an L-shaped frame; 5. a handle; 6. a drive assembly; 601. a round bar; 602. a translation plate; 603. an end plate; 604. a tension spring; 605. a wedge plate; 606. a fixed table; 607. a lifting rod; 608. a baffle plate; 7. an adjustment assembly; 701. a vertical plate; 702. an elastic telescopic column; 703. an adjusting frame; 704. an adjustment groove; 705. an adjusting plate; 706. adjusting the lead screw; 8. a locking assembly; 801. a first arc-shaped plate; 802. a second arc-shaped plate; 9. and (4) anti-drop strips.
Detailed Description
Embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
As shown in fig. 1, the embodiment provides a construction method for reducing the permeability of a post-cast strip, which includes the following steps:
step one, steel bar surface treatment: and removing impurities on the surfaces of the upper-layer steel bar and the lower-layer steel bar in the post-cast strip before pouring concrete.
Step two, floating slurry grinding treatment: and (4) polishing the floating slurry on the surfaces of the components on the two sides of the post-cast strip to enable the surfaces of the components to be flat.
Step three, cleaning impurities on the bottom layer: and removing impurities and laitance powder accumulated at the bottom of the post-cast strip by a washing and blowing dust remover.
The construction device for reducing the permeability of the post-cast strip is matched in the second step, and as shown in fig. 2, the construction device comprises a strip-shaped tool apron 1, a plurality of strip-shaped files 2 penetrating through the tool apron 1 are horizontally arranged on the tool apron 1, the strip-shaped files 2 are in sliding fit with the tool apron 1 along the length direction of the strip-shaped files, and the adjacent strip-shaped files 2 are mutually attached; the strip-shaped file 2 is fixedly provided with an anti-falling strip 9 with a T-shaped section, and the anti-falling strip 9 penetrates through the cutter holder 1 and is in sliding fit with the cutter holder 1.
In this embodiment, the strip files 2 have two working states:
in the first working state, the end parts of the strip files 2 are flush, and the strip files 2 do not move above and below the reinforcing steel bars in the process of treating the laitance by horizontal movement.
Under the second operating condition, the strip file 2 corresponding to the horizontal position of the steel bar is farther away from the steel bar than other strip files 2, and the floating slurry above and below the steel bar can be processed by the horizontal movement of other strip files 2 in the process of processing the floating slurry.
As shown in fig. 5, 8, 9 and 10, a limiting component 3 for limiting the position of the strip file 2 relative to the tool holder 1 is mounted on the tool holder 1, the limiting component 3 includes an oil cavity 301 formed in the tool holder 1, an air groove 302 communicated with the oil cavity 301 is formed in the top surface of the tool holder 1, and a detachable sealing plug 303 is mounted at the top end of the air groove 302; an oil pipe 304 communicated with the oil cavity 301 is horizontally and fixedly installed on the surface of the tool apron 1 corresponding to each strip-shaped file 2, the oil pipe 304 is parallel to the strip-shaped files 2, a sealing rod 305 is slidably matched with one end, away from the tool apron 1, of the oil pipe 304, a connecting arm 306 is fixedly installed at one end, located outside the oil pipe 304, of the sealing rod 305, and the connecting arm 306 is fixedly connected to the back face of the corresponding strip-shaped file 2; a strip-shaped sealing plate 307 is slidably mounted on the oil pipe 304, and the sealing plate 307 is used for blocking the inside of the oil pipe 304 so as to limit the mutual flow of hydraulic oil in the oil pipe 304 and hydraulic oil in the oil chamber 301; the end parts of the sealing plates 307 are fixedly provided with control plates 308 together, and the tool apron 1 is rotatably provided with two control screws 309 which penetrate through the control plates 308 in a thread matching manner; a stop block 310 matched with the end face of the sealing rod 305 is fixedly arranged on the inner wall of the oil pipe 304.
In the initial state, the strip file 2 is in a first working state, the whole device is manually placed on the bottom surface of the post-pouring belt, and the front surface of the strip file 2 is attached to the vertical surface of the member, and the state is shown in fig. 2; after the sealing plug 303 is manually opened, the tool apron 1 is horizontally pushed to drive each strip-shaped file 2 to synchronously and horizontally move towards the steel bars, and after the end parts of part of the strip-shaped files 2 are contacted with the steel bars, the end parts of the strip-shaped files are pushed by the steel bars and horizontally move relative to the tool apron 1; the corresponding connecting arm 306 and the sealing rod 305 are driven to move horizontally in the horizontal moving process of the strip-shaped file 2; during the horizontal movement of the sealing rod 305 in the oil pipe 304, the hydraulic oil in the oil chamber 301 is sucked into the oil pipe 304 under the action of air pressure, and the external air enters the oil chamber 301 through the air groove 302; when the rest strip-shaped files 2 completely cover the areas above and below the reinforcing steel bars, the horizontal pushing of the tool apron 1 is stopped, and the air grooves 302 are closed through the sealing plugs 303, and at the moment, the strip-shaped files 2 are in a second working state; then, by manually rotating the two control screws 309, the two control screws 309 drive the control plate 308 and the sealing plate 307 to move towards the tool apron 1, and the sealing plate 307 is inserted into the oil pipe 304 and blocks the oil pipe 304, so that the hydraulic oil between the sealing plate 307 and the sealing rod 305 cannot flow with the hydraulic oil in the oil chamber 301, that is, the sealing rod 305 and the connecting arm 306 cannot move relative to the oil pipe 304; because the oil pipe 304 is fixed on the tool apron 1 and the connecting arm 306 is fixedly connected with the strip-shaped file 2, the position of the strip-shaped file 2 relative to the tool apron 1 cannot be changed; in this state, in the process that the tool apron 1 horizontally moves along the length direction of the strip-shaped file 2, the strip-shaped file 2 grinds the floating slurry on the surface of the component above and below the reinforcing steel bar; taking out the whole device after the treatment, and carrying out grinding treatment on the floating slurry on the surfaces of the components above and below the next steel bar according to the method; after the surface treatment of all the components above and below the steel bars is finished, adjusting the strip-shaped file 2 to the first working state, inserting the device into the post-pouring belt again, and treating the surfaces of the rest components through the strip-shaped file 2; it should be noted that, because the stopper 310 is installed on the inner wall of the oil pipe 304, when the bar-shaped file 2 is adjusted back to the first working state, the sealing plug 303 only needs to be opened, then the bar-shaped file 2 is manually pushed to reset until the end surface of the sealing rod 305 is attached to the stopper 310, and finally the sealing plug 303 seals the air groove 302, so that the bar-shaped file 2 can be ensured to return to the first working state.
As shown in fig. 4, 6 and 7, the construction device for reducing the permeability of the post-cast strip further comprises an inverted L-shaped frame 4, wherein a handle 5 and a driving assembly 6 are mounted on the L-shaped frame 4, and the driving assembly 6 is used for driving the tool apron 1 to move along the length direction of the strip-shaped file 2; the driving component 6 comprises two round rods 601 horizontally sliding along the length direction of the strip file 2 and penetrating through the L-shaped frame 4, one ends of the two round rods 601 close to the tool apron 1 are fixedly provided with a translation plate 602 together, and the translation plate 602 is fixedly connected to the tool apron 1; an end plate 603 is fixedly arranged at the other end of the round rod 601, and a telescopic spring 604 is fixedly sleeved between the end plate 603 and the L-shaped frame 4; a vertical wedge-shaped plate 605 is fixedly arranged on the surface of the translation plate 602, a fixed table 606 is arranged on the L-shaped frame 4, a lifting rod 607 is vertically and slidably arranged on the fixed table 606, and a roller which is in rolling fit with the inclined surface of the wedge-shaped plate 605 is rotatably arranged at the bottom end of the lifting rod 607; a baffle 608 matched with the L-shaped frame 4 is fixedly arranged on one side of the round rod 601 close to the translation plate 602.
The lifting rod 607 is pushed manually to move downwards, the lifting rod 607 drives the acting force applied to the wedge-shaped plate 605 by the roller in the descending process of the roller to push the wedge-shaped plate 605 to move horizontally, the wedge-shaped plate 605 drives the translation plate 602, the tool apron 1, the round rod 601, the baffle 608 and the end plate 603 to move horizontally synchronously, the telescopic spring 604 is compressed, the tool apron 1 drives the strip-shaped file 2 to move horizontally, and the strip-shaped file 2 performs one-way grinding treatment on floating pulp; after the lifting rod 607 is loosened, the resilience force of the telescopic spring 604 enables the telescopic spring 604 to reset, the translation plate 602, the tool apron 1, the round rod 601, the baffle 608 and the end plate 603 are integrally and synchronously reset horizontally, the tool apron 1 drives the strip-shaped file 2 to move horizontally and reversely to reset, and the strip-shaped file 2 performs reverse grinding treatment on the laitance; the lifting rod 607 is continuously pressed manually, and the strip-shaped file 2 continuously reciprocates and horizontally moves to grind and level the laitance; it should be noted that, because the lifter 607 drives the roller to descend and the wedge plate 605 applies a reaction force to the roller, in order to avoid the reaction force to drive the L-shaped frame 4 to move horizontally through the lifter 607 and the fixing table 606, the L-shaped frame 4 needs to be manually supported to ensure that the L-shaped frame 4 does not move horizontally in a direction parallel to the strip-shaped file 2, and further ensure that the moving range of the strip-shaped file 2 can cover the areas above and below the steel bars.
As shown in fig. 2, 3 and 4, an adjusting assembly 7 is mounted on the L-shaped frame 4, the adjusting assembly 7 is used for adjusting the horizontal displacement of the strip-shaped file 2 perpendicular to the adjusting assembly 7, the adjusting assembly 7 includes a vertical plate 701, an elastic telescopic column 702 is horizontally and fixedly mounted on the vertical plate 701, and the end of the telescopic section of the elastic telescopic column 702 is fixedly connected to the L-shaped frame 4; the two sides of the vertical plate 701 are fixedly provided with a lifting device 21274, the positions of the L-shaped frame 4 corresponding to the adjusting frame 703 are provided with an adjusting groove 704 in sliding fit with one end of the adjusting frame 703, one end of the adjusting groove 704 close to the vertical plate 701 is provided with an adjusting plate 705 in sliding fit with the surface of the adjusting frame 703, the position of the L-shaped frame 4 corresponding to each adjusting plate 705 is provided with an adjusting screw 706, the adjusting screw 706 is in threaded fit with the L-shaped frame 4, and one end of the adjusting screw 706, which is positioned in the adjusting groove 704, is in rotating fit with the adjusting plate 705; the vertical plate 701 is provided with a locking assembly 8, the locking assembly 8 comprises a first arc-shaped plate 801 which is vertically and slidably mounted on the surface, far away from the L-shaped rack 4, of the vertical plate 701, and the bottom end face of the first arc-shaped plate 801 is in sliding fit with a second arc-shaped plate 802.
Before the device is integrally inserted into a post-cast strip, the vertical plate 701 needs to be manually pressed to shorten the elastic telescopic column 702, the vertical plate 701 is loosened after the device is integrally inserted into the post-cast strip, the vertical plate 701 is attached to a steel bar which is closest to the vertical surface of a component and is parallel to the vertical surface of the component, then the first arc-shaped plate 801 is pushed to move downwards until the first arc-shaped plate 801 is attached to the steel bar, the position of the second arc-shaped plate 802 is adjusted to enable the second arc-shaped plate 802 to move out of the first arc-shaped plate 801, and the vertical plate 701 is locked on the steel bar through the first arc-shaped plate 801 and the second arc-shaped plate 802; the elastic telescopic column 702 tends to extend and reset, the L-shaped frame 4, the round rod 601, the translation plate 602, the tool apron 1 and the strip-shaped file 2 integrally generate a trend of moving towards the vertical surface of the member through the elastic force provided by the elastic telescopic column 702, and the strip-shaped file 2 is pressed against the vertical surface of the member; when the strip-shaped file 2 is used for grinding part of the laitance, the laitance can automatically feed to the vertical surface of the component; the L-shaped frame 4 drives the adjusting plate 705 to move synchronously, after the adjusting plate 705 moves to a state of being attached to the adjusting frame 703, the adjusting frame 703 is fixedly connected to the vertical plate 701, so that the adjusting plate 705 cannot move continuously along with the L-shaped frame 4, and the same L-shaped frame 4, the round rod 601, the translation plate 602, the tool apron 1 and the strip-shaped file 2 cannot be fed continuously to the vertical surface of the member; the feeding amount of the strip file 2 perpendicular to the vertical surface of the component can be controlled by rotating the adjusting screw 706 to adjust the position of the adjusting plate 705 in the adjusting groove 704; the strip file 2 can be ensured to be evenly ground for each portion of the vertical surface of the member as long as the position of the regulating plate 705 in the regulating groove 704 is ensured to be constant.
The application method of the construction device for reducing the permeability of the post-cast strip in the embodiment is as follows: firstly, the whole device is inserted into a post-cast strip, and a vertical plate 701 is locked on a steel bar which is closest to the vertical surface of the member and is parallel to the vertical surface of the member through a locking assembly 8, as shown in the state of fig. 2; and then the strip file 2 is adjusted to be in a second working state, one hand supports the L-shaped frame 4 to prevent the L-shaped frame 4 from horizontally moving, the other hand continuously presses the lifting rod 607 downwards, the tool apron 1 and the strip file 2 continuously horizontally reciprocate under the driving of the driving assembly 6, and the strip file 2 carries out the smoothing treatment on the surface laitance of the component above and below the steel bar.
Taking out the whole device after the treatment, and carrying out grinding treatment on the floating slurry on the surfaces of the components above and below the next steel bar according to the method; after the surface treatment of all the components above and below the steel bars is completed, the strip file 2 is adjusted to the first working state, the device is inserted into the post-cast strip again, and the surface treatment of the rest components is performed by the strip file 2.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A construction method for reducing the permeability of a post-cast strip comprises the following steps:
step one, steel bar surface treatment: removing impurities on the surfaces of the upper-layer steel bars and the lower-layer steel bars in the post-cast strip before pouring concrete;
step two, floating slurry grinding treatment: polishing the laitance on the surfaces of the components on the two sides of the post-cast strip to enable the surfaces of the components to be flat;
step three, cleaning impurities on the bottom layer: removing impurities and laitance powder accumulated at the bottom of the post-cast strip by a washing and blowing dust remover;
wherein, adopted the construction equipment cooperation completion that a reduction post-cast strip permeability in the step two, its characterized in that: the construction device for reducing the permeability of the post-cast strip comprises a strip-shaped tool apron (1), wherein a plurality of strip-shaped files (2) penetrating through the tool apron (1) are horizontally arranged on the tool apron (1), the strip-shaped files (2) are in sliding fit with the tool apron (1) along the length direction of the strip-shaped files, and the adjacent strip-shaped files (2) are mutually attached; the tool apron (1) is provided with a limiting component (3) used for limiting the position of the strip-shaped file (2) relative to the tool apron (1);
the limiting assembly (3) comprises an oil cavity (301) formed in the tool apron (1), an air groove (302) communicated with the oil cavity (301) is formed in the top surface of the tool apron (1), and a detachable sealing plug (303) is mounted at the top end of the air groove (302); an oil pipe (304) communicated with the oil cavity (301) is horizontally and fixedly installed on the surface of the cutter holder (1) corresponding to each strip-shaped file (2), the oil pipe (304) and the strip-shaped files (2) are parallel to each other, a sealing rod (305) is slidably matched with one end, away from the cutter holder (1), of the oil pipe (304), a connecting arm (306) is fixedly installed at one end, located outside the oil pipe (304), of the sealing rod (305), and the connecting arm (306) is fixedly connected to the back face of the corresponding strip-shaped file (2);
a strip-shaped sealing plate (307) is slidably mounted on the oil pipe (304), and the sealing plate (307) is used for blocking the inside of the oil pipe (304) so as to limit the mutual flowing of hydraulic oil in the oil pipe (304) and hydraulic oil in the oil cavity (301); the end parts of the sealing plates (307) are fixedly provided with control plates (308) together, and the tool apron (1) is rotatably provided with two control screws (309) which penetrate through the control plates (308) in a thread matching manner;
a stop block (310) matched with the end face of the sealing rod (305) is fixedly arranged on the inner wall of the oil pipe (304);
the construction device for reducing the permeability of the post-cast strip further comprises an inverted L-shaped frame (4), a handle (5) and a driving assembly (6) are mounted on the L-shaped frame (4), and the driving assembly (6) is used for driving the cutter holder (1) to move along the length direction of the strip-shaped file (2); install adjusting part (7) on L shape frame (4), adjusting part (7) are used for adjusting strip file (2) along its self horizontal displacement of perpendicular to, and adjusting part (7) include vertical board (701), install locking Assembly (8) on vertical board (701).
2. The construction method for reducing the permeability of the post-cast strip according to claim 1, wherein the construction method comprises the following steps: the anti-falling device is characterized in that an anti-falling strip (9) with a T-shaped cross section is fixedly mounted on the strip-shaped file (2), and the anti-falling strip (9) penetrates through the cutter holder (1) and is in sliding fit with the cutter holder (1).
3. The construction method for reducing the permeability of the post-cast strip according to claim 1, characterized by comprising the following steps: the driving assembly (6) comprises two round rods (601) which horizontally slide along the length direction of the strip-shaped file (2) and penetrate through the L-shaped rack (4), one ends of the two round rods (601) close to the cutter holder (1) are jointly and fixedly provided with a translation plate (602), and the translation plate (602) is fixedly connected to the cutter holder (1); the other end of the round rod (601) is fixedly provided with an end plate (603), and an expansion spring (604) is fixedly sleeved between the end plate (603) and the L-shaped frame (4).
4. The construction method for reducing the permeability of the post-cast strip according to claim 3, characterized by comprising the following steps: a vertical wedge-shaped plate (605) is fixedly mounted on the surface of the translation plate (602), a fixed table (606) is mounted on the L-shaped frame (4), a lifting rod (607) is vertically and slidably mounted on the fixed table (606), and a roller which is in rolling fit with the inclined surface of the wedge-shaped plate (605) is rotatably mounted at the bottom end of the lifting rod (607); a baffle (608) matched with the L-shaped frame (4) is fixedly arranged on one side of the round rod (601) close to the translation plate (602).
5. The construction method for reducing the permeability of the post-cast strip according to claim 1, wherein the construction method comprises the following steps: the adjusting assembly (7) further comprises an elastic telescopic column (702) horizontally and fixedly mounted on the vertical plate (701), and the end part of a telescopic section of the elastic telescopic column (702) is fixedly connected to the L-shaped rack (4); the utility model discloses a vertical board (701) both sides fixed mounting have 21274, adjusting frame (703) of shape, the position that corresponds adjusting frame (703) on L shape frame (4) is seted up with adjusting frame (703) one end sliding fit's adjustment tank (704), the one end sliding fit who is close to vertical board (701) in adjustment tank (704) has adjusting plate (705) with adjusting frame (703) surface fit, the position that corresponds every adjusting plate (705) on L shape frame (4) all installs adjusting lead screw (706), adjusting lead screw (706) and L shape frame (4) screw-thread fit and adjusting lead screw (706) are located adjusting tank (704) one end and adjusting plate (705) normal running fit.
6. The construction method for reducing the permeability of the post-cast strip according to claim 1, wherein the construction method comprises the following steps: the locking assembly (8) comprises a first arc-shaped plate (801) which is vertically and slidably mounted on the surface of the vertical plate (701) far away from the L-shaped rack (4), and a second arc-shaped plate (802) is slidably matched with the bottom end face of the first arc-shaped plate (801).
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| JP2006272214A (en) * | 2005-03-30 | 2006-10-12 | Tdk Corp | Cleaning method for heater chip and cleaning device therefor |
| CN101832026B (en) * | 2010-04-07 | 2011-07-13 | 南通建工集团股份有限公司 | Construction method of sole plate post-poured strip form bracing system |
| CN108149801A (en) * | 2018-01-30 | 2018-06-12 | 郑州三超除锈技术有限公司 | Post-cast strip steel bar derusting rust-proofing method |
| CN109454746B (en) * | 2018-11-02 | 2020-07-10 | 杭州科技职业技术学院 | Concrete pouring device for building construction and construction method thereof |
| CN212652817U (en) * | 2020-07-08 | 2021-03-05 | 承起自动化科技（上海）有限公司 | Radial floating reciprocating file device |
| CN215106594U (en) * | 2021-04-22 | 2021-12-10 | 中建二局第三建筑工程有限公司 | Floating slurry cleaning machine for steel pipe column construction |
| CN114086763B (en) * | 2021-10-29 | 2023-07-18 | 中建八局西南建设工程有限公司 | Auxiliary device for pouring post-pouring belt |
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