CN114922138A - Small-section thin-wall U-shaped open channel concrete lining device and construction method thereof - Google Patents
Small-section thin-wall U-shaped open channel concrete lining device and construction method thereof Download PDFInfo
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- CN114922138A CN114922138A CN202210552240.7A CN202210552240A CN114922138A CN 114922138 A CN114922138 A CN 114922138A CN 202210552240 A CN202210552240 A CN 202210552240A CN 114922138 A CN114922138 A CN 114922138A
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- 239000004567 concrete Substances 0.000 title claims abstract description 64
- 238000010276 construction Methods 0.000 title claims abstract description 49
- 230000007246 mechanism Effects 0.000 claims abstract description 28
- 230000008878 coupling Effects 0.000 claims abstract description 5
- 238000010168 coupling process Methods 0.000 claims abstract description 5
- 238000005859 coupling reaction Methods 0.000 claims abstract description 5
- 238000013461 design Methods 0.000 claims description 30
- 238000009412 basement excavation Methods 0.000 claims description 6
- 239000004575 stone Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 239000011178 precast concrete Substances 0.000 claims description 4
- 238000007664 blowing Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 2
- 238000009415 formwork Methods 0.000 claims 3
- 238000005086 pumping Methods 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 230000002262 irrigation Effects 0.000 description 4
- 238000003973 irrigation Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000001624 hip Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B5/00—Artificial water canals, e.g. irrigation canals
- E02B5/02—Making or lining canals
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model belongs to the technical field of open channel construction engineering's technique and specifically relates to a little section thin wall U-shaped open channel concrete lining device and construction method thereof is related to, little section thin wall U-shaped open channel concrete lining device, including a plurality of prefabricated templates, the template includes U-shaped bottom plate, support frame, adjustment mechanism and coupling mechanism, U-shaped bottom plate sliding connection is on the support frame, adjustment mechanism is used for adjusting the position of U-shaped bottom plate both ends on the support frame respectively, coupling mechanism is used for connecting adjacent U-shaped bottom plate. This application has the effect that improves the efficiency of construction.
Description
Technical Field
The application relates to the technical field of open channel construction engineering, in particular to a small-section thin-wall U-shaped open channel concrete lining device and a construction method thereof.
Background
The irrigation and water conservancy irrigation channel is the important infrastructure of guarantee agricultural normal development water and improvement water resource utilization rate, and among many channel section forms, the U type channel is the higher one of the degree of utilization in the irrigation and water conservancy irrigation channel.
In the related art, in the construction of concrete lining of a U-shaped channel, an integral forming machine (also called a lining machine) construction method and a traditional method of building a template on site for pouring are mostly adopted at present. However, in hilly areas, due to the influence of factors such as complex and various terrains, limited field and the like, the construction of the lining machine adopted in the U-shaped channel is greatly restricted, and only the traditional method for building the template for pouring can be used.
Aiming at the related technologies, the inventor finds that the efficiency of building the template on site is low, and the construction progress is influenced.
Disclosure of Invention
In order to improve the construction efficiency, the application provides a small-section thin-wall U-shaped open channel concrete lining device and a construction method thereof.
First aspect, the application provides a small cross section thin wall U-shaped open channel concrete lining device adopts following technical scheme:
little section thin wall U-shaped open channel concrete lining device, including a plurality of prefabricated templates, the template includes U-shaped bottom plate, support frame, adjustment mechanism and coupling mechanism, U-shaped bottom plate sliding connection is on the support frame, adjustment mechanism is used for adjusting the position of U-shaped bottom plate both ends on the support frame respectively, coupling mechanism is used for connecting adjacent U-shaped bottom plate.
By adopting the technical scheme, a plurality of templates are manufactured in advance, the templates are placed in the channel, the supporting vertical rods are supported on the bank of the channel, the U-shaped bottom plate is supported on the channel, the positions of two ends of the U-shaped bottom plate on the supporting vertical rods are adjusted through the adjusting mechanism, so that the upper surface of the U-shaped bottom plate is flush with the design plane, and the templates are connected together through the connecting mechanism; the bank of the channel has the condition of inconsistent height, and the upper surfaces of the templates are all positioned on the same design plane through the adjustment of the adjusting assembly, so that the condition of fluctuation of the height of the channel caused by the unbalanced placement of the templates is reduced, and the construction quality of the open channel is improved; splicing a channel straight-line section into a bin by adopting a plurality of templates according to the channel parting length, and performing parting construction on a curve section by adopting 1-2 templates according to the curvature radius; on directly placing the trench with prefabricated template, through the concatenation with a plurality of templates, reduced the time that the template was built on site and pour, improved the efficiency of construction.
Optionally, the support frame includes the support montant that sets up in U-shaped bottom plate four corners, it is provided with the connecting rod to support to slide on the montant, the connecting rod slides along vertical direction, the both ends of U-shaped bottom plate all are provided with the connecting piece that is used for being connected with the connecting rod.
Through adopting above-mentioned technical scheme, be connected U-shaped bottom plate and connecting rod through the connecting piece, connecting rod sliding connection is on supporting the montant to the realization is to the regulation of U-shaped bottom plate position.
Optionally, the connecting piece is including setting up the connecting block at U-shaped bottom plate top, be connected with the slide bar on the connecting rod, the slide bar rotates to be connected on the connecting rod, connecting block sliding connection is on the slide bar, the connecting block slides along the length direction of U-shaped bottom plate.
Through adopting above-mentioned technical scheme, connecting block sliding connection is on the slide bar, connects the U-shaped bottom plate on the connecting rod to the connecting block can slide on the slide bar, when only adjusting one side of U-shaped bottom plate, the slide bar passes through the connecting block and drives the U-shaped bottom plate and remove in the length direction of supporting the vertical pole, so that to the regulation of U-shaped bottom plate unilateral position, the further suitability that improves the template improves the control range of template.
Optionally, the adjusting mechanism includes a first rack, a first gear, a rotating shaft and a fixing component, the first rack is arranged on the connecting rod, the rotating shaft is connected to the supporting vertical rod in a rotating mode, the first gear is arranged on the rotating shaft in a sleeved mode, the first gear is meshed with the first rack, and the fixing component is used for fixing the first gear.
Through adopting above-mentioned technical scheme, rotate the pivot, the pivot drives first gear revolve, and first gear drives first rack and slides, and first rack drives the slide bar and slides on supporting the montant to in the regulation to the position of U-shaped bottom plate on supporting the montant, and fixed first gear through the mounting, so that to the fixing of U-shaped bottom plate.
Optionally, fixed subassembly sets up the second gear on supporting the montant including rotating, the clearance has between second gear and the first gear, be connected with the horizontal pole on the connecting rod, be provided with the second rack on the horizontal pole, second gear and second rack meshing, it is provided with the fixed block that is used for the immigration or shifts out clearance between first gear and the second gear to slide on the support montant, the maximum width of fixed block is greater than the minimum clearance between first gear and the second gear, be provided with on the support montant and be used for adjusting the gliding slider of fixed block.
Through adopting the above technical scheme, slide the fixed block to between first gear and the second gear through the slider, mesh with first gear and second gear respectively, the one end of fixed block is greater than the clearance between first gear and the second gear, make first rack need the lapse, when driving first gear anticlockwise rotation, drive the fixed block towards the clearance, further reinforcing the fixed effect to first gear, and when adjusting U-shaped bottom plate upwards slip, first gear clockwise rotates, first gear drives the fixed block and keeps away from the clearance motion between first gear and the second gear towards, consequently, there is not limiting displacement to the upwards regulation, so that to the upwards regulation of U-shaped bottom plate.
Optionally, the slider is including setting up being used for on supporting the montant ordering about the fixed block towards the gliding spring of first gear, be provided with the regulating block that is used for adjusting the fixed block on the fixed block, the regulating block slides and wears to establish outside supporting the montant.
Through adopting above-mentioned technical scheme, the spring orders about the fixed block and slides towards first gear, so that it is fixed with first gear, and when adjusting U-shaped bottom plate rebound, need not the slip regulating block, directly rotate the pivot and can drive the U-shaped bottom plate through first gear and remove, and can reduce the gliding of U-shaped bottom plate to first gear auto-lock after adjusting, reduced the step of adjusting the after-fixing simultaneously, so that to the regulation of U-shaped bottom plate position.
Optionally, the connecting mechanism includes a lap joint strip arranged at one end of the U-shaped bottom plate, a lap joint groove used for being lapped with the lap joint strip is arranged at the other end of the U-shaped bottom plate, and the lap joint strip is lapped on the lap joint groove.
Through adopting above-mentioned technical scheme, overlap joint strip overlap joint with U-shaped bottom plate one end is in the overlap joint groove, realizes the connection to two templates to connect simply, do not have the restriction, allow to have certain declination in the junction, so that in the use of complicated topography.
In a second aspect, the application provides a small-section thin-wall U-shaped open channel concrete lining construction method, which adopts the following technical scheme:
the small-section thin-wall U-shaped open channel concrete lining device also comprises a lining device;
s1: preparation of measurement: measuring the original construction terrain according to a design drawing, and designing and processing a prefabricated template according to the design section size of the U-shaped open channel and the design parting length of the open channel;
s2: excavating a channel: excavating earth and stones above the design elevation of the channel of the excavation section by using an excavator; filling a channel foundation to a channel top design elevation according to design requirements for a channel of a filling section, measuring and marking a channel center line and a channel left and right side lines after a channel foundation is excavated or filled to the channel top design elevation, excavating a drawing groove for an earth foundation section by adopting an excavator, excavating a drawing groove for a stone foundation section by adopting a crushing head, and excavating by adopting an excavator; after the preliminary groove drawing is finished, a standard U-shaped section piece is installed at the head and tail positions of an excavation section, wide lines are arranged at the left and right corners of the top of the U-shaped section piece, and the edge cleaning and bottom picking are carried out on a channel bed by adopting manual work and an electric pick;
s3: construction of a concrete cushion of the trench: manually laying a concrete cushion layer on the bottom wall of the channel, and sealing the channel;
s4: construction of channel concrete lining: carrying the templates to the channel by adopting small mechanical hoisting or manual carrying, and splicing the straight line sections into a bin by adopting a plurality of templates according to the length of the dividing seams of the channel; performing parting construction on the curve section by adopting 1-2 templates according to the curvature radius; the end of the template is plugged by a wood template; manually injecting the prepared concrete between the U-shaped bottom plate and the groove, ensuring that the concrete on two sides of the template ascends synchronously when the template is put into a warehouse, and compacting the concrete by adopting a portable electric small-sized vibrating extractor while injecting the concrete;
s5: concrete curing: moistening and curing in time after removing the mould and covering with a film, wherein the curing time is not less than 28 days;
s6: expansion joint filling construction: finishing the cover by a portable grinder, then blowing off dust and residues in the gap by a compressor of the air-extracting machine, checking whether the gap width and the gap depth meet the design requirements, and refilling the sealing agent for the expansion gap after the expansion gap is checked to be qualified.
By adopting the technical scheme, the open channel is poured by using the prefabricated template, the time for building the template on site in the construction process is reduced, the construction progress is accelerated, the construction efficiency is improved, and the quality of the open channel is favorably improved by adjusting the prefabricated template.
Optionally, after the construction of the trench concrete cushion is completed, a concrete support is poured at the bottom of the trench, and the top of the concrete support and the designed bottom surface of the trench are located in the same horizontal plane.
Through adopting above-mentioned technical scheme, the setting up of concrete support supports the U-shaped bottom plate on the one hand, reduces the pressure that supports the montant and bear, and on the other hand has ensured the thickness of open channel bottom concrete to improve the quality that the open channel was pour, reduce the less construction quality problem that leads to of partial concrete thickness in open channel bottom.
Optionally, after the templates are spliced and installed, precast concrete pressing blocks are placed at the tops of the templates.
Through adopting above-mentioned technical scheme, the precast concrete briquetting of placing at the template top exerts decurrent pressure to the template, reduces the template in the in-process template rebound's of concreting possibility to improve the whole roughness of construction, improve the quality of construction.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the method comprises the following steps of manufacturing a plurality of templates in advance, placing the templates into a channel, supporting a vertical supporting rod on the bank side of the channel, supporting a U-shaped bottom plate on the channel, adjusting the positions of two ends of the U-shaped bottom plate on the vertical supporting rod through an adjusting mechanism to enable the upper surface of the U-shaped bottom plate to be flush with a design plane, and connecting the templates together through a connecting mechanism; the bank of the channel has the condition of inconsistent height, and the upper surfaces of the templates are all positioned on the same design plane through the adjustment of the adjusting assembly, so that the condition of fluctuation of the height of the channel caused by the unbalanced placement of the templates is reduced, and the construction quality of the open channel is improved; splicing a channel straight-line section into a bin by adopting a plurality of templates according to the channel parting length, and performing parting construction on a curve section by adopting 1-2 templates according to the curvature radius; the prefabricated template is directly placed on the channel, and the time for building the template on site and pouring is reduced and the construction efficiency is improved by splicing a plurality of templates;
2. slide the fixed block to between first gear and the second gear through the slider, mesh with first gear and second gear respectively, the one end of fixed block is greater than the clearance between first gear and the second gear, make first rack need slide downwards, when driving first gear anticlockwise rotation, drive the fixed block towards the clearance, further fixed effect to first gear has been strengthened, and when adjusting U-shaped bottom plate lapse, first gear clockwise rotates, first gear drives the fixed block and keeps away from the clearance motion between first gear and the second gear towards, consequently, do not have limiting displacement to the upwards regulation, so that to the upwards regulation of U-shaped bottom plate.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.
Fig. 2 is a cross-sectional view of an embodiment of the present application.
Fig. 3 is an enlarged view of a portion a of fig. 2.
Fig. 4 is a schematic structural diagram of a U-shaped base plate according to an embodiment of the present application.
Description of reference numerals: 1. a U-shaped bottom plate; 2. a support frame; 21. supporting a vertical rod; 22. a connecting rod; 23. connecting blocks; 24. a slide bar; 25. a limiting plate; 26. a chute; 27. a fastening block; 28. fixing an anchor rod; 3. an adjustment mechanism; 31. a first rack; 32. a first gear; 33. a rotating shaft; 34. a fixing assembly; 341. a second gear; 342. a cross bar; 343. a second rack; 344. a fixed block; 345. a spring; 346. an adjusting block; 35. A placement groove; 4. a connecting mechanism; 41. a lapping strip; 42. a lap joint groove; 43. a reinforcing rod.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses small cross section thin wall U-shaped open channel concrete lining device. Referring to fig. 1, the small-section thin-wall U-shaped open channel concrete lining device comprises a plurality of prefabricated templates, each template comprises a U-shaped bottom plate 1, a support frame 2, an adjusting mechanism 3 and a connecting mechanism 4, the U-shaped bottom plates 1 are slidably connected onto the support frames 2, the adjusting mechanisms 3 are used for adjusting the positions of two ends of each U-shaped bottom plate 1 on the support frames 2 respectively, and the connecting mechanisms 4 are used for connecting the adjacent U-shaped bottom plates 1.
Referring to fig. 2 and 3, the support frame 2 includes four support vertical rods 21 connected at four corners of the U-shaped bottom plate 1, the support vertical rods 21 are slidably connected with connecting rods 22, the connecting rods 22 slide along the vertical direction, and connecting pieces used for being connected with the connecting rods 22 are arranged at two ends of the U-shaped bottom plate 1. The connecting piece comprises a connecting block 23 fixed on the top of the U-shaped bottom plate 1 in a welding mode, the connecting block 23 is L-shaped, one end of the connecting block 23 is fixed on the U-shaped bottom plate 1, and a limiting plate 25 is fixed on the other end of the connecting block in a welding mode; two connecting blocks 23 that are located the same end of U-shaped bottom plate 1 are connected on same limiting plate 25, connecting block 23 slides along U-shaped bottom plate 1's length direction, be connected with slide bar 24 on connecting rod 22, two connecting rods 22 that are located the same end of U-shaped bottom plate 1 are connected on same slide bar 24, connecting rod 22 rotates and connects on slide bar 24, slide bar 24's length direction is followed to connecting rod 22's axis of rotation, connecting rod 22 drives slide bar 24 and slides along the length direction who supports montant 21 on supporting montant 21, spout 26 has been seted up on slide bar 24, limiting plate 25 sliding connection is in spout 26, and limiting plate 25 roll-off spout 26 has been restricted to the end wall of spout 26, limiting plate 25 slides along the length direction of U-shaped bottom plate 1. The bottom of the support vertical rod 21 is fixedly welded with a fastening block 27, a fixing anchor rod 28 penetrates through the fastening block 27, and the fixing anchor rod 28 penetrates through the fastening block 27 to extend underground to fix the support vertical rod 21.
When only adjusting the position of U-shaped bottom plate 1 one end, connecting rod 22 drives slide bar 24 and removes, and slide bar 24 passes through connecting block 23 and drives U-shaped bottom plate 1 and remove in the length direction who supports montant 21, and when slide bar 24 removed, slide bar 24 followed the removal and took place to deflect to make limiting plate 25 slide in spout 26, in order to realize the regulation to U-shaped bottom plate 1 one end height.
Referring to fig. 3, the adjusting mechanism 3 includes a first rack 31, a first gear 32, a rotating shaft 33 and a fixing component 34, the first rack 31 is welded and fixed at one end of the connecting rod 22, a placing groove 35 is formed in the supporting vertical rod 21, the connecting rod 22 is located in the placing groove 35, the first rack 31 is located in the placing groove 35 and slides along the length direction of the supporting vertical rod 21, the rotating shaft 33 is rotatably connected to the supporting vertical rod 21, the rotating shaft 33 penetrates through the supporting vertical rod 21, the first gear 32 at the same end of the U-shaped bottom plate 1 is fixedly sleeved on the same rotating shaft 33, the first gear 32 is engaged with the first rack 31, and the fixing component 34 is used for fixing the first gear 32.
Referring to fig. 3, the fixing assembly 34 includes a second gear 341 rotatably connected to the vertical support rod 21, a gap is formed between the second gear 341 and the first gear 32, a cross bar 342 is connected to one end of the connecting rod 22, a second rack 343 is fixedly welded to one end of the cross bar 342 far away from the connecting rod 22, the second gear 341 is engaged with the second rack 343, and the first gear 32 and the second gear 341 are located between the first rack 31 and the second rack 343; the supporting vertical rod 21 is connected with a fixing block 344 in a sliding mode, wherein the fixing block 344 is used for moving in or out of a gap between the first gear 32 and the second gear 341, the fixing block 344 slides along the length direction of the supporting vertical rod 21, the maximum width of the fixing block 344 is larger than the minimum gap between the first gear 32 and the second gear 341, one end, close to the first gear 32, of the fixing block 344 is in an isosceles trapezoid shape, teeth are integrally formed on two waists of the isosceles trapezoid, the teeth are respectively meshed with the first gear 32 and the second gear 341, the length of the lower bottom edge of the isosceles trapezoid is larger than the minimum gap between the first gear 32 and the second gear 341, the fixing block 344 is located on one side, close to the ground, of the first gear 32, and a sliding part used for adjusting the fixing block 344 to slide is arranged on the supporting vertical rod 21.
Referring to fig. 3, the sliding member includes a spring 345 connected inside the vertical support rod 21 for driving the fixing block 344 to slide toward the first gear 32, one end of the spring 345 abuts against the bottom wall of the placement groove 35, and the other end abuts against one end of the fixing block 344 away from the first gear 32; an adjusting block 346 for adjusting the position of the fixing block 344 is fixedly welded on the fixing block 344, and the adjusting block 346 is slidably arranged outside the vertical supporting rod 21 in a penetrating manner.
The rotating shaft 33 is rotated, the rotating shaft 33 drives the first gear 32 to rotate, the first gear 32 drives the first rack 31 to slide, the first rack 31 drives the connecting rod 22 to slide, the connecting rod 22 drives the sliding rod 24 to move, and the sliding rod 24 drives the U-shaped bottom plate 1 to slide, so that the position of the U-shaped bottom plate 1 on the supporting vertical rod 21 can be adjusted. The spring 345 drives the fixing block 344 to slide into the gap between the first gear 32 and the second gear 341 to be meshed with the first gear 32 and the second gear 341 respectively; when the first rack 31 needs to slide downwards to drive the first gear 32 to rotate anticlockwise, the fixing block 344 is driven towards the gap to fix the first gear 32, so that the fixing effect on the first gear 32 is further enhanced. When adjusting U-shaped bottom plate 1 and upwards sliding, first gear 32 clockwise rotates, first gear 32 drives fixed block 344 and keeps away from the clearance motion between first gear 32 and the second gear 341 towards, consequently there is not the limiting displacement to adjusting U-shaped bottom plate 1 upwards, can directly adjust, and when adjusting U-shaped bottom plate 1 rebound, need not slip regulating block 346, directly rotate pivot 33 and can drive U-shaped bottom plate 1 through first gear 32 and remove, and can be to first gear 32 auto-lock after adjusting, reduce the gliding of U-shaped bottom plate 1. When the U-shaped bottom plate 1 needs to be adjusted downward, the adjusting rod is slid to drive the fixing block 344 to slide downward to be separated from the first gear 32, and then the rotating shaft 33 is rotated to adjust the U-shaped bottom plate 1 downward.
Referring to fig. 1 and 4, the connecting mechanism 4 includes an overlapping strip 41 integrally formed at one end of the U-shaped base plate 1, an overlapping groove 42 for overlapping the overlapping strip 41 is provided at the other end of the U-shaped base plate 1, and the overlapping strip 41 is overlapped on the overlapping groove 42. A plurality of reinforcing rods 43 are fixedly welded in the U-shaped bottom plate 1, and the reinforcing rods 43 support two side walls of the U-shaped bottom plate 1 so as to improve the strength of the two side walls of the U-shaped bottom plate 1.
The implementation principle of the small-section thin-wall U-shaped open channel concrete lining device in the embodiment of the application is as follows: placing the template into the channel, supporting the vertical supporting rod 21 on the bank side of the channel, supporting the U-shaped bottom plate 1 on the channel, and fixing the vertical supporting rod 21 by using the fixing anchor rod 28; adjust fixed block 344, the pivot 33 rotates, the pivot 33 drives first gear 32 and rotates, first gear 32 drives first rack 31 and slides, first rack 31 drives connecting rod 22 and slides, connecting rod 22 drives slide bar 24 and moves, slide bar 24 drives U-shaped bottom plate 1 and slides, adjust the position of U-shaped bottom plate 1, so that the upper surface of U-shaped bottom plate 1 flushes with the design plane, in order to reduce the situation of the height fluctuation of the trench that leads to because of the imbalance that the template was placed, improve the construction quality of open channel, link together a plurality of templates again and can pour the open channel.
The embodiment of the application discloses a small-section thin-wall U-shaped open channel concrete lining construction method, which uses a small-section thin-wall U-shaped open channel concrete lining device and also comprises a concrete lining device;
s1: preparation of measurement: measuring the original construction terrain according to a design drawing, and designing and processing a prefabricated template according to the design section size of the U-shaped open channel and the design parting length of the open channel;
s2: excavating a channel: excavating earth and stones above the design elevation of the channel of the excavation section by using an excavator; filling a channel foundation to a channel top design elevation according to design requirements for a channel of a filling section, measuring and marking a channel center line and a channel left and right side lines after a channel foundation is excavated or filled to the channel top design elevation, excavating a drawing groove for an earth foundation section by adopting an excavator, excavating a drawing groove for a stone foundation section by adopting a crushing head, and excavating by adopting an excavator; after the preliminary groove drawing is finished, a standard U-shaped section piece is installed at the head and tail positions of an excavation section, the U-shaped section piece is a U-shaped reinforcing steel bar manufactured according to the shape of the section, wide lines are arranged at the left corner and the right corner of the top of the U-shaped section piece, and the edge cleaning and bottom picking are carried out on a channel bed by adopting manual work and an electric pick;
s3: construction of a concrete cushion of the trench: manually laying a concrete cushion layer on the bottom wall of the channel, sealing the channel, after the construction of the concrete cushion layer of the channel is finished, pouring a plurality of concrete supports at intervals at the bottom of the channel, wherein the tops of the concrete supports and the designed bottom surface of the channel are positioned in the same horizontal plane;
s4: construction of channel concrete lining: carrying the templates to the channel by adopting small mechanical hoisting or manual carrying, and splicing the straight line sections into a bin by adopting a plurality of templates according to the length of the dividing seams of the channel; performing parting construction on the curve section by adopting 1-2 templates according to the curvature radius; placing the template into the channel, supporting the vertical supporting rod 21 at the bank of the channel, and fixing the vertical supporting rod 21 by using the fixing anchor rod 28; the adjusting fixing block 344 rotates the rotating shaft 33, the rotating shaft 33 drives the first gear 32 to rotate, the first gear 32 drives the first rack 31 to slide, the first rack 31 drives the connecting rod 22 to slide, the connecting rod 22 drives the sliding rod 24 to move, the sliding rod 24 drives the U-shaped bottom plate 1 to slide, the position of the U-shaped bottom plate 1 is adjusted, and the upper surface of the U-shaped bottom plate 1 is flush with the design plane; the end of the template is plugged by a wooden template, and after the template is spliced and installed, a precast concrete pressing block is placed at the top of the template; manually injecting the prepared concrete between the U-shaped bottom plate 1 and the groove, ensuring that the concrete on two sides of the template ascends synchronously when the template is put into a warehouse, and adopting a portable electric small-sized vibrating and drawing device to tamp the concrete while injecting the concrete;
s5: concrete curing: after the form is removed, timely moistening and curing are carried out, a film is adopted for covering, and the curing time is not less than 28 days;
s6: and (3) expansion joint filling construction: finishing the cover by a portable grinder, then blowing off dust and residues in the gap by a compressor of the air extractor, checking whether the gap width and the gap depth meet the design requirements, and refilling the expansion gap plugging agent after the expansion gap is checked to be qualified.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. Little section thin wall U-shaped open channel concrete lining device, its characterized in that: the prefabricated formwork comprises a plurality of prefabricated formworks, each formwork comprises a U-shaped bottom plate (1), a support frame (2), an adjusting mechanism (3) and a connecting mechanism (4), the U-shaped bottom plates (1) are slidably connected onto the support frames (2), the adjusting mechanisms (3) are used for adjusting the positions of the two ends of each U-shaped bottom plate (1) on the support frames (2) respectively, and the connecting mechanisms (4) are used for connecting the adjacent U-shaped bottom plates (1).
2. The small-section thin-walled U-shaped open channel concrete lining device according to claim 1, characterized in that: the support frame (2) is including setting up support montant (21) in U-shaped bottom plate (1) four corners, it is provided with connecting rod (22) to support to slide on montant (21), connecting rod (22) slide along vertical direction, the both ends of U-shaped bottom plate (1) all are provided with the connecting piece that is used for being connected with connecting rod (22).
3. The small-section thin-walled U-shaped open channel concrete lining device according to claim 2, characterized in that: the connecting piece is including setting up connecting block (23) at U-shaped bottom plate (1) top, be connected with slide bar (24) on connecting rod (22), slide bar (24) rotate to be connected on connecting rod (22), connecting block (23) sliding connection is on slide bar (24), connecting block (23) slide along the length direction of U-shaped bottom plate (1).
4. The small-section thin-wall U-shaped open channel concrete lining device according to claim 3, characterized in that: adjustment mechanism (3) include first rack (31), first gear (32), pivot (33) and fixed subassembly (34), first rack (31) set up on connecting rod (22), pivot (33) rotate to be connected on supporting montant (21), first gear (32) cover is established on pivot (33), first gear (32) and first rack (31) meshing, fixed subassembly (34) are used for fixing first gear (32).
5. The small-section thin-wall U-shaped open channel concrete lining device according to claim 4, characterized in that: fixed subassembly (34) is including rotating second gear (341) that sets up on supporting vertical pole (21), second gear (341) and first gear (32) have the clearance between, be connected with horizontal pole (342) on connecting rod (22), be provided with second rack (343) on horizontal pole (342), second gear (341) and second rack (343) meshing, it is provided with fixed block (344) that are used for the immigration or shift out clearance between first gear (32) and second gear (341) to slide on supporting vertical pole (21), the maximum width of fixed block (344) is greater than the minimum clearance between first gear (32) and second gear (341), be provided with on supporting vertical pole (21) and be used for adjusting the gliding slider of fixed block (344).
6. The small-section thin-wall U-shaped open channel concrete lining device according to claim 5, characterized in that: the sliding part comprises a spring (345) which is arranged on the vertical supporting rod (21) and used for driving the fixing block (344) to slide towards the first gear (32), an adjusting block (346) used for adjusting the fixing block (344) is arranged on the fixing block (344), and the adjusting block (346) penetrates through the vertical supporting rod (21) in a sliding mode.
7. The small-section thin-walled U-shaped open channel concrete lining device according to claim 1, characterized in that: coupling mechanism (4) are including setting up overlap joint strip (41) in U-shaped bottom plate (1) one end, the other end of U-shaped bottom plate (1) is offered and is used for with overlap joint groove (42) of overlap joint strip (41) overlap joint, overlap joint strip (41) overlap joint is on overlap joint groove (42).
8. The construction method for the small-section thin-wall U-shaped open channel concrete lining is characterized by comprising the following steps of: use of the small-section thin-walled U-shaped open channel concrete lining device as claimed in any of claims 1 to 7, further comprising;
s1: preparation of measurement: measuring the original construction terrain according to a design drawing, and designing and processing a prefabricated template according to the design section size of the U-shaped open channel and the design parting length of the open channel;
s2: excavating a channel: excavating earth and stones above the design elevation of the channel of the excavation section by using an excavator; filling a channel foundation to a channel top design elevation according to design requirements for a channel of a filling section, measuring and marking a channel center line and a channel left and right side line after a channel foundation is excavated or filled to the channel top design elevation, excavating a pumping groove for an earth foundation section by adopting an excavator, excavating a pumping groove for a stone foundation section by adopting a crushing head, and excavating and installing by adopting the excavator; after the preliminary groove drawing is finished, a standard U-shaped section piece is installed at the head and tail positions of an excavation section, wide lines are arranged at the left and right corners of the top of the U-shaped section piece, and the edge cleaning and bottom picking are carried out on a channel bed by adopting manual work and an electric pick;
s3: construction of a concrete cushion of the trench: manually laying a concrete cushion layer on the bottom wall of the channel, and sealing the channel;
s4: construction of channel concrete lining: carrying the templates to the channel by adopting small mechanical hoisting or manual carrying, and splicing the straight line sections into a bin by adopting a plurality of templates according to the length of the dividing seams of the channel; performing parting construction on the curve section by adopting 1-2 templates according to the curvature radius; the end of the template is plugged by a wood template; manually injecting the prepared concrete between the U-shaped bottom plate (1) and the groove, ensuring that the concrete on two sides of the template ascends synchronously when the template is put into a warehouse, and adopting a portable electric small-sized vibrating extractor to tamp the concrete while injecting the concrete;
s5: concrete curing: moistening and curing in time after removing the mould and covering with a film, wherein the curing time is not less than 28 days;
s6: and (3) expansion joint filling construction: finishing the cover by a portable grinder, then blowing off dust and residues in the gap by a compressor of the air-extracting machine, checking whether the gap width and the gap depth meet the design requirements, and refilling the sealing agent for the expansion gap after the expansion gap is checked to be qualified.
9. The construction method for lining concrete in a small-section thin-walled U-shaped open channel according to claim 8, wherein: and after the construction of the concrete cushion of the channel is finished, a concrete support is poured at the bottom of the channel, and the top of the concrete support and the designed bottom surface of the channel are positioned in the same horizontal plane.
10. The construction method for lining concrete in a small-section thin-walled U-shaped open channel according to claim 8, wherein: after the templates are spliced and installed, precast concrete pressing blocks are placed at the tops of the templates.
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| CN202210552240.7A CN114922138B (en) | 2022-05-20 | 2022-05-20 | Concrete lining device for small-section thin-wall U-shaped open channel and construction method thereof |
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