CN114922138B - Concrete lining device for small-section thin-wall U-shaped open channel and construction method thereof - Google Patents
Concrete lining device for small-section thin-wall U-shaped open channel and construction method thereof Download PDFInfo
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- CN114922138B CN114922138B CN202210552240.7A CN202210552240A CN114922138B CN 114922138 B CN114922138 B CN 114922138B CN 202210552240 A CN202210552240 A CN 202210552240A CN 114922138 B CN114922138 B CN 114922138B
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- 239000004567 concrete Substances 0.000 title claims abstract description 62
- 238000010276 construction Methods 0.000 title claims abstract description 51
- 230000008878 coupling Effects 0.000 claims abstract description 6
- 238000010168 coupling process Methods 0.000 claims abstract description 6
- 238000005859 coupling reaction Methods 0.000 claims abstract description 6
- 238000013461 design Methods 0.000 claims description 30
- 238000009412 basement excavation Methods 0.000 claims description 9
- 239000004575 stone Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 239000011178 precast concrete Substances 0.000 claims description 4
- 238000012876 topography Methods 0.000 claims description 4
- 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
- 238000000605 extraction Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 238000005065 mining Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 230000033001 locomotion Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 230000002262 irrigation Effects 0.000 description 2
- 238000003973 irrigation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 210000001624 hip Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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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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- General Engineering & Computer Science (AREA)
- 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 relates to a technical field of open channel construction engineering especially relates to small-section thin wall U-shaped open channel concrete lining device and construction method thereof, and small-section thin wall U-shaped open channel concrete lining device includes 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. The application has the effect of improving 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 conservation channel is an important infrastructure for guaranteeing normal development water and improving the water resource utilization rate of agriculture, and among a plurality of channel section forms, the U-shaped channel is one with higher use degree in the irrigation and water conservation channel.
In the related art, in the construction of the U-shaped channel concrete lining, an integral forming machine (also called a lining machine) construction method and a traditional site construction template pouring method are adopted at present. However, in hilly areas, the construction of the U-shaped channel by using a lining machine is greatly restricted due to the influence of factors such as complex and various terrains, limited sites and the like, and only a traditional template pouring construction method can be used.
Aiming at the related technology, the inventor finds that the efficiency of on-site template construction is low and the construction progress is affected.
Disclosure of Invention
In order to improve construction efficiency, the application provides a small-section thin-wall U-shaped open channel concrete lining device and a construction method thereof.
In a first aspect, the application provides a small-section thin-wall U-shaped open channel concrete lining device, which adopts the following technical scheme:
the utility model provides a small-section thin wall U-shaped open channel concrete lining device, includes 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 prefabricated, the templates are placed in the canal, the supporting vertical rods are supported on the bank of the canal, the U-shaped bottom plate is supported on the canal, the positions of the 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 connecting mechanism connects the templates together; the bank of the canal can have inconsistent height, and the upper surfaces of the templates are all positioned on the same design plane through the adjustment of the adjusting component, so that the height fluctuation of the canal caused by unbalance of the placement of the templates is reduced, and the construction quality of the open canal is improved; splicing the straight line segments of the canal into a bin by adopting a plurality of templates according to the parting length of the canal, and carrying out parting construction on the curved line segments by adopting 1-2 templates according to the size of the curvature radius; the prefabricated templates are directly placed on the canal, and the splicing of the templates reduces the casting time of the site construction templates and improves the construction efficiency.
Optionally, the support frame is including setting up the support montant in U-shaped bottom plate four corners, it is provided with the connecting rod to slide on the support 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 realize the regulation to 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 at the length direction who supports the vertical pole, so that to the regulation of U-shaped bottom plate unilateral position, further improvement template's suitability improves the accommodation of template.
Optionally, adjustment mechanism includes first rack, first gear, pivot and fixed subassembly, first rack sets up on the connecting rod, the pivot rotates to be connected on supporting the montant, first gear cover is established in the pivot, first gear and first rack meshing, fixed subassembly is used for fixed first gear.
Through adopting above-mentioned technical scheme, rotate the pivot, the pivot drives first gear rotation, and first gear drives first rack and slides, and first rack drives the slide bar and slides on supporting the montant to the regulation to the position of U-shaped bottom plate on supporting the montant, and it is fixed with first gear through the mounting, so that the fixed to U-shaped bottom plate.
Optionally, the fixed subassembly is including rotating the second gear that sets up on supporting the montant, have the clearance 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 engagement, slide on the supporting the montant and be provided with the fixed block that is used for shifting in or shifting out the clearance between first gear and the second gear, the maximum width of fixed block is greater than the minimum clearance between first gear and the second gear, be provided with on the supporting the montant and be used for adjusting the gliding slider of fixed block.
Through adopting above-mentioned technical scheme, slide the fixed block to between first gear and the second gear through the slider, respectively with first gear and second gear engagement, 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 strengthened the fixed effect to first gear, and when adjusting U-shaped bottom plate upwards slip, first gear clockwise rotation, first gear drives the fixed block towards keeping away from the clearance motion between first gear and the second gear, consequently, do not have the restriction effect to upwards adjusting, so that upwards adjusting to U-shaped bottom plate.
Optionally, the slider is including setting up the spring that is used for driving the fixed block towards first gear slip on supporting the montant, 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 the supporting the montant.
Through adopting above-mentioned technical scheme, the spring drives the fixed block and slides towards first gear to be convenient for with first gear fixed, and when adjusting U-shaped bottom plate upward movement, need not the slip regulating block, direct rotation pivot can drive U-shaped bottom plate removal through first gear, and can be to first gear auto-lock after adjusting, reduce the gliding of U-shaped bottom plate, reduced the fixed step after adjusting simultaneously, in order to be convenient for the regulation to U-shaped bottom plate position.
Optionally, the connecting mechanism comprises a lapping strip arranged at one end of the U-shaped bottom plate, and the other end of the U-shaped bottom plate is provided with a lapping groove for lapping the lapping strip, and the lapping strip is lapped on the lapping groove.
Through adopting above-mentioned technical scheme, overlap joint strip overlap joint with U-shaped bottom plate one end realizes the connection to two templates in the overlap joint groove to connect simply, there is not the restriction, allows to have certain deflection in junction, so that use in complicated topography.
In a second aspect, the application provides a construction method for a small-section thin-wall U-shaped open channel concrete lining, which adopts the following technical scheme:
the small-section thin-wall U-shaped open channel concrete lining device is used and further comprises;
s1: measurement preparation: measuring construction original topography 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: and (3) trench excavation: digging earth and stones above the elevation of the excavation section channel design by using an excavator; filling a canal foundation to a canal top design elevation according to design requirements for a canal of a filling section, measuring and marking a canal center line and left and right side lines of the canal after the canal foundation is excavated or filled to the canal top design elevation, adopting an excavator to extract a groove for an earthwork foundation section, firstly adopting a crushing head to excavate the groove for a stone foundation section, and then adopting an excavator to excavate and install; after the groove extraction is finished preliminarily, installing a standard U-shaped section piece at the head and tail positions of the excavation section, arranging a wide line at the left and right corners of the top of the U-shaped section piece, and manually carrying out edge cleaning and bottom picking on the groove bed by adopting an electric pick;
s3: and (3) constructing a canal concrete cushion layer: manually paving a concrete cushion layer on the bottom wall of the canal, and sealing the canal;
s4: and (3) channel concrete lining construction: carrying templates to the channel by adopting small mechanical hoisting or manual carrying, and splicing a plurality of templates into a bin by the straight line segments according to the parting length of the channel; adopting 1-2 templates to perform parting construction on the curve segment according to the curvature radius; the end head of the template is plugged by a wood template; manually injecting the prepared concrete between the U-shaped bottom plate and the groove, and ensuring that the concrete on two sides of the template rises synchronously when the concrete is placed in a warehouse, and vibrating the concrete by adopting a portable electric small vibrating and excavating device while injecting the concrete;
s5: and (3) curing concrete: after the die is disassembled, the die is wetted and cured in time and covered by a film, and the curing time is not less than 28 days;
s6: and (3) joint filling construction of the expansion joint: the cover is firstly trimmed by a hand-held grinder, then dust and residue in the seam are blown out by a compressor of an air mining machine, whether the seam width and the seam depth meet the design requirements is checked, and after the expansion seam is accepted, the expansion seam plugging agent is refilled.
Through adopting above-mentioned technical scheme, pour the open channel through using prefabricated template, reduced the time of on-the-spot template of putting up in the work progress for the progress of construction has improved the efficiency of construction to through the regulation of prefabricated template, be favorable to improving the quality of open channel construction.
Optionally, after the construction of the canal concrete cushion is completed, a concrete support is poured at the bottom of the canal, and the top of the concrete support and the designed bottom surface of the canal are positioned in the same horizontal plane.
Through adopting above-mentioned technical scheme, the setting of concrete support supports U-shaped bottom plate on the one hand, reduces the pressure that the support montant bore, has ensured the thickness of open channel bottom concrete on the other hand to improve the quality of open channel pouring, reduce the construction quality problem that the partial concrete thickness of open channel bottom is less to lead to.
Optionally, after the templates are spliced and installed, a precast concrete press block is placed at the top of the templates.
Through adopting above-mentioned technical scheme, the precast concrete compact that places at the template top applys decurrent pressure to the template, reduces the template at the in-process template of pouring concrete ascending possibility to the whole roughness of improvement construction improves the quality of construction.
In summary, the present application includes at least one of the following beneficial technical effects:
1. manufacturing a plurality of templates in advance, placing the templates into a ditch, supporting vertical rods on the bank of the ditch, supporting a U-shaped bottom plate on the ditch, adjusting the positions of two ends of the U-shaped bottom plate on the vertical rods through an adjusting mechanism so that the upper surface of the U-shaped bottom plate is flush with a design plane, and connecting the templates together through a connecting mechanism; the bank of the canal can have inconsistent height, and the upper surfaces of the templates are all positioned on the same design plane through the adjustment of the adjusting component, so that the height fluctuation of the canal caused by unbalance of the placement of the templates is reduced, and the construction quality of the open canal is improved; splicing the straight line segments of the canal into a bin by adopting a plurality of templates according to the parting length of the canal, and carrying out parting construction on the curved line segments by adopting 1-2 templates according to the size of the curvature radius; the prefabricated templates are directly placed on the canal, and the splicing of the templates reduces the pouring time of the site construction templates and improves the construction efficiency;
2. the fixed block is slid between the first gear and the second gear through the sliding piece and is meshed with the first gear and the second gear respectively, one end of the fixed block is larger than a gap between the first gear and the second gear, so that the first rack needs to slide downwards, the fixed block is driven towards the gap when the first gear is driven to rotate anticlockwise, the fixing effect on the first gear is further enhanced, the first gear rotates clockwise when the U-shaped bottom plate is adjusted to slide upwards, and the first gear drives the fixed block to move towards the gap between the first gear and the second gear, so that the upward adjustment is not limited, and the upward adjustment on the U-shaped bottom plate is facilitated.
Drawings
Fig. 1 is a schematic overall structure 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 in fig. 2.
Fig. 4 is a schematic structural view of a U-shaped base plate according to an embodiment of the present application.
Reference numerals illustrate: 1. a U-shaped bottom plate; 2. a support frame; 21. a supporting vertical rod; 22. a connecting rod; 23. a connecting block; 24. a slide bar; 25. a limiting plate; 26. a chute; 27. tightly fixing the block; 28. fixing the anchor rod; 3. an adjusting 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 lap joint strip; 42. a lap joint groove; 43. and a reinforcing rod.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-4.
The embodiment of the application discloses a small-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, wherein each template comprises a U-shaped bottom plate 1, a support frame 2, an adjusting mechanism 3 and a connecting mechanism 4,U, the bottom plates 1 are slidably connected to the support frame 2, the adjusting mechanism 3 is used for respectively adjusting the positions of two ends of the U-shaped bottom plates 1 on the support frame 2, and the connecting mechanism 4 is used for connecting adjacent U-shaped bottom plates 1.
Referring to fig. 2 and 3, the support frame 2 includes four support posts 21 connected to four corners of the U-shaped base plate 1, connecting rods 22 slidably connected to the support posts 21, the connecting rods 22 sliding in a vertical direction, and connecting pieces for connecting the connecting rods 22 are provided at both ends of the U-shaped base plate 1. The connecting piece comprises a connecting block 23 welded and fixed on the top of the U-shaped bottom plate 1, the connecting block 23 is L-shaped, one end of the connecting block 23 is fixed on the U-shaped bottom plate 1, and the other end is welded and fixed with a limiting plate 25; two connecting blocks 23 positioned at the same end of the U-shaped bottom plate 1 are connected to the same limiting plate 25, the connecting blocks 23 slide along the length direction of the U-shaped bottom plate 1, a sliding rod 24 is connected to the connecting rod 22, two connecting rods 22 positioned at the same end of the U-shaped bottom plate 1 are connected to the same sliding rod 24, the connecting rods 22 are rotationally connected to the sliding rod 24, the rotation axis of the connecting rods 22 slides along the length direction of the sliding rod 24, the connecting rods 22 drive the sliding rod 24 to slide on the supporting vertical rods 21 along the length direction of the supporting vertical rods 21, a sliding groove 26 is formed in the sliding rod 24, the limiting plate 25 is slidably connected in the sliding groove 26, the end wall of the sliding groove 26 limits the limiting plate 25 to slide out of the sliding groove 26, and the limiting plate 25 slides along the length direction of the 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 into the ground to fix the support vertical rod 21.
When the position of one end of the U-shaped bottom plate 1 is only adjusted, the connecting rod 22 drives the sliding rod 24 to move, the sliding rod 24 drives the U-shaped bottom plate 1 to move in the length direction of the supporting vertical rod 21 through the connecting block 23, when the sliding rod 24 moves, the sliding rod 24 deflects along with the movement, and the limiting plate 25 slides in the sliding groove 26, so that the height of one end of the U-shaped bottom plate 1 is adjusted.
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 rotationally connected to the supporting vertical rod 21, the rotating shaft 33 penetrates through the supporting vertical rod 21, a 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 meshed 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 coupled to the support vertical bar 21 with a gap between the second gear 341 and the first gear 32, one end of the connecting rod 22 is coupled to a cross rod 342, one end of the cross rod 342 remote from the connecting rod 22 is fixedly welded with a second rack 343, the second gear 341 is engaged with the second rack 343, and the first gear 32 and the second gear 341 are positioned between the first rack 31 and the second rack 343; the fixed block 344 for moving in or out of the gap between the first gear 32 and the second gear 341 is slidably connected to the supporting vertical rod 21, the fixed block 344 slides along the length direction of the supporting vertical rod 21, the maximum width of the fixed block 344 is larger than the minimum gap between the first gear 32 and the second gear 341, one end of the fixed block 344, which is close to the first gear 32, is isosceles trapezoid, teeth are uniformly formed on two waists of the isosceles trapezoid and 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 fixed block 344 is located on one side, which is close to the ground, of the first gear 32, and a sliding part for adjusting the sliding of the fixed block 344 is arranged on the supporting vertical rod 21.
Referring to fig. 3, the slider includes a spring 345 connected in the support vertical rod 21 for driving the fixed block 344 to slide toward the first gear 32, one end of the spring 345 is abutted against the bottom wall of the placement groove 35, and the other end is abutted against the end of the fixed block 344 away from the first gear 32; the fixing block 344 is fixedly welded with an adjusting block 346 for adjusting the position of the fixing block 344, and the adjusting block 346 is slidably arranged outside the supporting vertical rod 21.
Rotating shaft 33, rotating shaft 33 drives first gear 32 to rotate, first gear 32 drives first rack 31 to slide, first rack 31 drives connecting rod 22 to slide, connecting rod 22 drives slide bar 24 to move, slide bar 24 drives U-shaped bottom plate 1 to slide to the regulation of the position of U-shaped bottom plate 1 on supporting montant 21. The spring 345 drives the fixed block 344 to slide into a gap between the first gear 32 and the second gear 341, and respectively engage with the first gear 32 and the second gear 341; 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 slide, first gear 32 clockwise rotation, first gear 32 drives fixed block 344 to keep away from the clearance motion between first gear 32 and the second gear 341, consequently do not have the restriction effect to upward adjusting U-shaped bottom plate 1, but direct regulation, and when adjusting U-shaped bottom plate 1 upwards remove, need not to slide adjusting block 346, direct rotation pivot 33 can drive U-shaped bottom plate 1 through first gear 32 and remove, and can be to first gear 32 auto-lock after the regulation, reduce the gliding of U-shaped bottom plate 1. When the U-shaped bottom plate 1 needs to be adjusted downwards, the adjusting rod is slid, the adjusting rod drives the fixing block 344 to slide downwards to be separated from the first gear 32, and then the rotating shaft 33 is rotated to adjust the U-shaped bottom plate 1 downwards.
Referring to fig. 1 and 4, the connection mechanism 4 includes a lap joint strip 41 integrally formed at one end of the U-shaped base plate 1, and the other end of the U-shaped base plate 1 is provided with a lap joint groove 42 for lap joint with the lap joint strip 41, and the lap joint strip 41 is lapped on the lap joint groove 42. A plurality of reinforcing rods 43 are fixedly welded in the U-shaped bottom plate 1, and the reinforcing rods 43 support the 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 provided by the embodiment of the application is as follows: placing the template into a ditch, supporting the vertical support rods 21 on the bank of the ditch, supporting the U-shaped bottom plate 1 on the ditch, and fixing the vertical support rods 21 by using the fixing anchor rods 28; the fixing block 344 is adjusted, 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, the sliding rod 24 drives the U-shaped bottom plate 1 to slide, and the position of the U-shaped bottom plate 1 is adjusted, so that the upper surface of the U-shaped bottom plate 1 is flush with a design plane, the height fluctuation condition of a channel caused by unbalance of template placement is reduced, the construction quality of an open channel is improved, and a plurality of templates are connected together to 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 further comprises the following steps of;
s1: measurement preparation: measuring construction original topography 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: and (3) trench excavation: digging earth and stones above the elevation of the excavation section channel design by using an excavator; filling a canal foundation to a canal top design elevation according to design requirements for a canal of a filling section, measuring and marking a canal center line and left and right side lines of the canal after the canal foundation is excavated or filled to the canal top design elevation, adopting an excavator to extract a groove for an earthwork foundation section, firstly adopting a crushing head to excavate the groove for a stone foundation section, and then adopting an excavator to excavate and install; after the groove extraction is finished preliminarily, installing a standard U-shaped section piece at the head and tail positions of the excavation section, wherein the U-shaped section piece is a U-shaped steel bar manufactured according to the section shape, and then arranging a wide line at left and right corners of the top of the U-shaped section piece, and cleaning edges and picking bottoms of the canal bed by adopting an electric pick as an auxiliary;
s3: and (3) constructing a canal concrete cushion layer: manually paving a concrete cushion layer on the bottom wall of the canal, sealing the canal, and pouring a plurality of concrete supports at intervals at the bottom of the canal after the construction of the concrete cushion layer of the canal is completed, wherein the top of the concrete supports and the designed bottom surface of the canal are positioned in the same horizontal plane;
s4: and (3) channel concrete lining construction: carrying templates to the channel by adopting small mechanical hoisting or manual carrying, and splicing a plurality of templates into a bin by the straight line segments according to the parting length of the channel; adopting 1-2 templates to perform parting construction on the curve segment according to the curvature radius; placing the template into a canal, supporting the vertical support rods 21 on the bank of the canal, and fixing the vertical support rods 21 by using fixing anchor rods 28; the fixing block 344 is adjusted, 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, 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 wood template, and after the template is spliced and installed, a precast concrete press block is placed at the top of the template; manually injecting the prepared concrete between the U-shaped bottom plate 1 and the groove, and ensuring that the concrete on two sides of the template rises synchronously when the concrete is placed in a warehouse, and vibrating the concrete by adopting a portable electric small vibrating and excavating device while injecting the concrete;
s5: and (3) curing concrete: after the die is disassembled, the die is wetted and cured in time and covered by a film, and the curing time is not less than 28 days;
s6: and (3) joint filling construction of the expansion joint: the cover is firstly trimmed by a hand-held grinder, then dust and residue in the seam are blown out by a compressor of an air mining machine, whether the seam width and the seam depth meet the design requirements is checked, and after the expansion seam is accepted, the expansion seam plugging agent is refilled.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (5)
1. The small-section thin-wall U-shaped open channel concrete lining device is characterized in that: including a plurality of prefabricated templates, the template includes U-shaped bottom plate (1), support frame (2), adjustment mechanism (3) and coupling mechanism (4), U-shaped bottom plate (1) sliding connection is on support frame (2), adjustment mechanism (3) are used for adjusting the position of U-shaped bottom plate (1) both ends on support frame (2) respectively, coupling mechanism (4) are used for connecting adjacent U-shaped bottom plate (1), support frame (2) are including setting up support montant (21) in U-shaped bottom plate (1) four corners, the last sliding connection of support montant (21) is provided with connecting rod (22), connecting rod (22) are followed vertical direction and are slided, 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), 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 and connect on connecting rod (22), connecting block (23) sliding connection is on slide bar (24), U-shaped bottom plate (23) are along a direction (31), a fixed rotating shaft (32) and a fixed subassembly (32), the first rack (31) is arranged on the connecting rod (22), the rotating shaft (33) is rotationally connected on the supporting vertical rod (21), the first gear (32) is sleeved on the rotating shaft (33), the first gear (32) is meshed with the first rack (31), the fixing component (34) is used for fixing the first gear (32), the fixing component (34) comprises a second gear (341) rotationally arranged on the supporting vertical rod (21), a gap is reserved between the second gear (341) and the first gear (32), a cross rod (342) is connected on the connecting rod (22), a second rack (343) is arranged on the cross rod (342), the second gear (341) is meshed with the second rack (343), a fixing block (344) used for moving in or moving out of the gap between the first gear (32) and the second gear (341) is arranged on the supporting vertical rod (21) in a sliding mode, the maximum width of the fixing block (344) is larger than that of the second gear (341), the vertical rod (341) is larger than that of the first gear (32) and the second gear (341), the supporting block (21) is provided with a sliding piece (344) which is arranged on the supporting vertical rod (21) and comprises a sliding piece (344) and is arranged on the sliding piece (21), the fixed block (344) is provided with an adjusting block (346) for adjusting the fixed block (344), and the adjusting block (346) is arranged outside the supporting vertical rod (21) in a sliding penetrating mode.
2. The small-section thin-wall U-shaped open channel concrete lining device according to claim 1, wherein: the connecting mechanism (4) comprises a lap joint strip (41) arranged at one end of the U-shaped bottom plate (1), a lap joint groove (42) used for lap joint with the lap joint strip (41) is formed at the other end of the U-shaped bottom plate (1), and the lap joint strip (41) is lapped on the lap joint groove (42).
3. The construction method of the small-section thin-wall U-shaped open channel concrete lining is characterized by comprising the following steps of: use of a small section thin wall U-shaped open channel concrete lining device according to any one of claims 1-2, further comprising;
s1: measurement preparation: measuring construction original topography 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: and (3) trench excavation: digging earth and stones above the elevation of the excavation section channel design by using an excavator; filling a canal foundation to a canal top design elevation according to design requirements for a canal of a filling section, measuring and marking a canal center line and left and right side lines of the canal after the canal foundation is excavated or filled to the canal top design elevation, adopting an excavator to extract a groove for an earthwork foundation section, firstly adopting a crushing head to excavate the groove for a stone foundation section, and then adopting an excavator to excavate and install; after the groove extraction is finished preliminarily, installing a standard U-shaped section piece at the head and tail positions of the excavation section, arranging a wide line at the left and right corners of the top of the U-shaped section piece, and manually carrying out edge cleaning and bottom picking on the groove bed by adopting an electric pick;
s3: and (3) constructing a canal concrete cushion layer: manually paving a concrete cushion layer on the bottom wall of the canal, and sealing the canal;
s4: and (3) channel concrete lining construction: carrying templates to the channel by adopting small mechanical hoisting or manual carrying, and splicing a plurality of templates into a bin by the straight line segments according to the parting length of the channel; adopting 1-2 templates to perform parting construction on the curve segment according to the curvature radius; the end head of the template is plugged by a wood template; manually injecting the prepared concrete between the U-shaped bottom plate (1) and the groove, and ensuring that the concrete on two sides of the template rises synchronously when the concrete is placed in a warehouse, and vibrating the concrete by adopting a portable electric small vibration device while injecting the concrete;
s5: and (3) curing concrete: after the die is disassembled, the die is wetted and cured in time and covered by a film, and the curing time is not less than 28 days;
s6: and (3) joint filling construction of the expansion joint: the cover is firstly trimmed by a hand-held grinder, then dust and residue in the seam are blown out by a compressor of an air mining machine, whether the seam width and the seam depth meet the design requirements is checked, and after the expansion seam is accepted, the expansion seam plugging agent is refilled.
4. The small-section thin-wall U-shaped open channel concrete lining construction method according to claim 3, wherein the method comprises the following steps: after the construction of the canal concrete cushion is completed, a concrete support is poured at the bottom of the canal, and the top of the concrete support and the designed bottom surface of the canal are positioned in the same horizontal plane.
5. The small-section thin-wall U-shaped open channel concrete lining construction method according to claim 3, wherein the method comprises the following steps: after the templates are spliced and installed, a precast concrete press block is placed at the top 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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| 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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