CN117090209A - Collapse-preventing rotary pile-digging construction device and construction method thereof - Google Patents
Collapse-preventing rotary pile-digging construction device and construction method thereof Download PDFInfo
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- CN117090209A CN117090209A CN202211710991.3A CN202211710991A CN117090209A CN 117090209 A CN117090209 A CN 117090209A CN 202211710991 A CN202211710991 A CN 202211710991A CN 117090209 A CN117090209 A CN 117090209A
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- 238000010276 construction Methods 0.000 title claims abstract description 60
- 238000007790 scraping Methods 0.000 claims abstract description 28
- 238000005553 drilling Methods 0.000 claims description 43
- 239000002002 slurry Substances 0.000 claims description 31
- 239000011148 porous material Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 9
- 230000002787 reinforcement Effects 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 239000004927 clay Substances 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 239000004576 sand Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 239000004575 stone Substances 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000004537 pulping Methods 0.000 claims description 2
- 244000309464 bull Species 0.000 abstract description 8
- 230000003405 preventing effect Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 24
- 230000000694 effects Effects 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 5
- 239000002689 soil Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009933 burial Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/06—Foundation trenches ditches or narrow shafts
- E02D17/08—Bordering or stiffening the sides of ditches trenches or narrow shafts for foundations
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/003—Injection of material
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The application relates to the technical field of cast-in-place pile construction, in particular to an anti-collapse rotary digging pile construction device and a construction method thereof, wherein the construction device comprises a rotating rod, a wall scraping device and a wall protecting forming device are arranged on the rotating rod, and the wall protecting forming device is arranged above the wall scraping device; the first support side of scraping wall device is equipped with horizontal scraper group, and the second support side of dado forming device is equipped with the vertical pipeline of the first flow channel intercommunication that is equipped with in the bull stick, and vertical pipeline orientation is decurrent, and vertical pipeline lower extreme is seal structure, and the vertical pipeline outside is equipped with a plurality of trompils that set up along vertical pipeline length direction interval. According to the application, the groove is firstly hung on the inner side surface of the pile hole wall through the transverse scraper group of the wall scraping device, then the second mud wall protecting layer covering the thread groove is generated on the hole wall through the wall protecting forming device, and the bonding strength of the second mud wall protecting layer and the hole wall is reinforced through the groove, so that the supporting and collapse preventing effects of the hole wall protecting layer are enhanced.
Description
Technical Field
The application relates to the technical field of cast-in-place pile construction, in particular to an anti-collapse rotary pile-digging construction device and a construction method thereof.
Background
Bored piles are generally formed by forming pile holes in a foundation by mechanical drilling, then placing reinforcement cages in the pile holes and pouring concrete. When the construction site is lower, a large amount of surface water is collected after rain, so that the water content of backfill soil is increased, the hole wall collapses and falls off, and difficulties and risks are brought to construction. In the construction of the high backfill area, the high backfill area consists of plain backfill soil, block stones and other backfill materials, so that the backfill soil has poor grading, weak consolidation, and easy formation of holes and gaps near the block stones, and slurry leakage is easy to occur when concrete is poured.
Disclosure of Invention
In order to enhance the support and the sealing property of the wall of a pile hole and prevent the collapse of the pile hole, the application provides an anti-collapse rotary digging pile construction device and a construction method thereof.
The application provides a collapse-preventing rotary pile-digging construction device and a construction method thereof, which adopt the following technical scheme:
the collapse-preventing rotary digging pile construction device comprises a rotating rod, wherein a wall scraping device and a wall protecting forming device are arranged on the rotating rod, and the wall protecting forming device is arranged above the wall scraping device; the wall scraping device comprises a first support arranged on the rotating rod, a vertical surface is arranged on the side face of the first support, a transverse scraper group is arranged on the vertical surface, a wall protecting forming device is arranged on the rotating rod on the upper portion of the first support, the wall protecting forming device comprises a second support connected with the rotating rod, a vertical pipeline communicated with a first flow channel arranged in the rotating rod is arranged on the side face of the second support, the vertical pipeline faces downwards, the lower end of the vertical pipeline is of a sealing structure, and a plurality of openings are formed in the outer side of the vertical pipeline at intervals along the length direction of the vertical pipeline.
Through adopting above-mentioned technical scheme, the bull stick drives and scrapes wall device and rotate, scrape the horizontal scraper group of wall device and hang out the groove at stake hole pore wall medial surface earlier, then will dispose clay or cement paste that density and viscosity are higher and add the fibre and pour into the bull stick in the first runner, under the spin coating effect of dado forming device, generate the second mud dado layer that covers the screw thread groove on the pore wall, strengthen the bonding strength of second mud dado layer and pore wall through the groove to reinforcing the support anti-collapse effect of pore wall protective layer, improve the closure of dado simultaneously, leak thick liquid problem when pouring concrete because cavity, hole etc. that backfill reason formed are avoided.
Optionally, a transverse pipeline is connected to the upper part of the vertical pipeline, and the transverse pipeline is communicated with the first flow channel; the transverse pipeline comprises an inner pipe and an outer pipe which are sleeved with each other, a first stop block is arranged on the outer wall of the inner pipe, a second stop block is arranged on the outer wall of the outer pipe, and a bolt is connected between the first stop block and the first stop block.
Through adopting above-mentioned technical scheme, through the lock position between control inner tube and the outer tube, adjust horizontal pipeline length, make the device can be applicable to different size drilling requirement, improve equipment suitability.
Optionally, the spacing distance between the adjacent holes is gradually reduced downwards or the hole diameter of the holes is gradually increased downwards.
Through adopting above-mentioned technical scheme, because vertical pipeline orientation is decurrent, the trompil interval on the increase vertical pipeline, when reducing the trompil interval of lower part and being favorable to balancing unit rotation, the discharge of trompil improves the shaping homogeneity and the quality of second mud dado layer.
Optionally, the inner side surface of the vertical pipeline is provided with a first inclined plane, and the inner diameter of the vertical pipeline gradually decreases downwards along the first inclined plane.
Through adopting above-mentioned technical scheme, the thick liquids in the vertical pipeline can get into vertical pipeline lower part except under the promotion of slip casting pressure, and still accessible self high viscosity adheres to on first inclined plane and flows to vertical pipeline lower part, reduces vertical pipeline upper portion because the mud of centrifugal force gathering, improves the coating homogeneity.
Optionally, the first support includes the mount and removes the frame, and the mount is fixed in the bull stick periphery wall, and the vertical face is located and is removed the frame, removes to be equipped with a plurality of connecting holes along removing frame length direction on the frame, and the connecting hole passes through the fixed orifices lock that the bolt was equipped with the mount and connects.
Through adopting above-mentioned technical scheme, through the lock position between control mount and the movable frame, adjust the length of first support, make the device can be applicable to different size drilling requirement, improve equipment suitability.
Optionally, the dense device of wall layer is equipped with outward of bull stick, the dense device of wall layer is including the cover locate the outer sleeve pipe that ends of bull stick, ends one side of the sleeve pipe and is equipped with the solid wall spare of annular, and the solid wall spare of annular is connected with vertical reciprocating device with stopping to revolve between the sleeve pipe.
Through adopting above-mentioned technical scheme, vertical reciprocating means drives the solid wall spare of annular and reciprocates along the pore wall, owing to leave the clearance between solid wall spare of annular and the pore wall, makes the thick liquids between solid wall spare of annular and the pore wall produce the second mud dado layer of new production on the turbulence punching press pore wall, further compaction second mud dado layer improves the compactness of second mud dado layer, prevents to break away from.
Optionally, the vertical reciprocating device includes mount pad, vertical connecting rod, horizontal connecting rod, reciprocating rod cover, and the mount pad is fixed in and ends the revolve sleeve pipe, and vertical connecting rod wears to locate the mount pad, and horizontal connecting rod one end is connected with vertical connecting rod, and the horizontal connecting rod other end is joined in marriage with the reciprocating groove that reciprocating rod cover global is equipped with and is connected, and the fixed cover of reciprocating rod cover is located the bull stick outer wall.
Through adopting above-mentioned technical scheme, the bull stick drives reciprocating rod cover and rotates, and horizontal connecting rod goes up and down along pivoted reciprocating groove, drives the fixed wall spare of annular on the vertical connecting rod and reciprocates, realizes the reinforcement effect of the fixed wall spare of annular to second mud dado layer, and this vertical reciprocating device simple structure need not additional driving source, and the stake of being convenient for uses under, and the practicality is high.
Optionally, a connecting column is arranged on the inner side of the annular fixed wall piece, and the end part of the connecting column is connected with a vertical connecting rod; the connecting column is a length-adjustable structure consisting of a first column body and a second column body, and the first column body and the second column body are locked and connected through bolts.
Through adopting above-mentioned technical scheme, through the lock position between first cylinder and the second cylinder, adjust spliced pole length, make the device can be applicable to different size drilling requirement, improve equipment suitability.
Optionally, an upper inclined plane and a lower inclined plane are arranged on the peripheral surface of the annular wall fixing piece, and a middle plane is arranged between the upper inclined plane and the lower inclined plane.
Through adopting above-mentioned technical scheme, upper and lower open, middle part narrow diameter's structure has increaseed the turbulent flow effect between annular solid wall spare and the pore wall, improves the drainage reinforcement effect of annular solid wall spare to the pore wall.
A collapse-preventing rotary digging pile construction method comprises the following steps:
and (3) preparation of construction: setting out and positioning the pile by adopting a GPRS total station, and checking the ground elevation by using a level meter; burying a protective barrel: burying a pile casing by taking a pile position as a reference, arranging a slurry overflow hole at the upper part of the pile casing, and tamping the periphery of the pile casing by clay layering; drilling and forming holes: drilling a hole by using a reverse circulation drilling machine, naturally pulping in the hole in the drilling process, and starting a sand and stone pump before drilling to form a reverse circulation environment, wherein slurry is replenished at any time along with slurry leakage and hole depth increase in the drilling process; and (3) wall protection reinforcement: after drilling to a certain depth, stopping drilling, reinforcing the hole wall by adopting the collapse-preventing rotary digging pile construction device, specifically, removing a drill rod, putting the construction device into the drill hole, connecting a rotating rod of the construction device with a precession device instead of the drill rod, scraping a thread groove on the hole wall by rotating the wall scraping device, then pouring the prepared viscous slurry into the rotating rod, and generating a second slurry wall protecting layer covering the thread groove on the hole wall by the rotary coating action of the wall protecting forming device; and (3) concrete pouring: and (5) placing a reinforcement cage and a guide pipe into the drilled hole after hole cleaning, and pouring concrete.
By adopting the technical scheme, the drill rod sucks out circulating slurry carrying the drilling slag, and the top of the hole supplements the slurry to maintain the liquid level in the hole, so that the stability of the hole wall is ensured. The reverse circulation can greatly reduce the ineffective labor of repeated grinding and ballasting, and can greatly improve the drilling efficiency. Is especially suitable for rock stratum, gravel and dense soil layer. The collapse-preventing rotary digging pile construction device effectively reinforces the hole wall, obviously enhances the collapse-preventing performance of the drilling hole and improves the hole forming quality of the drilling hole.
In summary, the present application includes at least one of the following beneficial technical effects: according to the application, the wall scraping device is driven to rotate by the rotating rod, the groove is firstly hung on the inner side surface of the wall of the pile hole by the transverse scraper group of the wall scraping device, then clay or cement paste with higher configuration density and viscosity is added into the first runner of the rotating rod, a second slurry wall protection layer covering the thread groove is generated on the wall of the hole under the action of rotary coating of the wall protection forming device, the bonding strength of the second slurry wall protection layer and the wall of the hole is enhanced by the groove, so that the supporting collapse prevention effect of the wall protection layer is enhanced, and meanwhile, the sealing performance of the wall protection is improved, so that the problem of slurry leakage during concrete pouring caused by cavities, pores and the like formed due to backfilling is avoided.
Drawings
Fig. 1 is a schematic view of the construction apparatus according to embodiment 1 of the present application.
Fig. 2 is a schematic view of the drilling structure of the present application.
Fig. 3 is a schematic view of the construction apparatus according to embodiment 2 of the present application.
Fig. 4 is a schematic view of the structure of the reciprocating rod sleeve of embodiment 2 of the present application.
Fig. 5 is a schematic flow chart of the construction method of embodiment 2 of the present application.
Reference numerals illustrate: 1. a rotating rod; 11. a first flow passage; 2. a wall scraping device; 21. a first bracket; 211. a fixing frame; 212. a moving rack; 213. a vertical face; 214. a transverse scraper group; 3. a retaining wall forming device; 31. a second bracket; 32. a vertical pipeline; 321. opening holes; 322. a first inclined surface; 33. a transverse pipeline; 331. an inner tube; 332. a first stopper; 333. an outer tube; 334. a second stopper; 4. a wall layer compacting device; 41. a spin-stop sleeve; 42. an annular wall fixing member; 421. an upper inclined plane; 422. a lower inclined plane; 423. a midplane; 43. a connecting column; 431. a first column; 432. a second column; 44. a vertical reciprocating device; 441. a mounting base; 442. a vertical connecting rod; 443. a transverse link; 444. a reciprocating rod sleeve; 445. a reciprocating groove; 5. a hole wall; 51. a thread groove; 6. and a second mud wall protecting layer.
Detailed Description
The application is described in further detail below with reference to fig. 1-5.
Example 1
The embodiment 1 of the application discloses an anti-collapse rotary pile-digging construction device and a construction method thereof.
Referring to fig. 1-2, the collapse-preventing rotary pile digging construction device comprises a rotary rod 1, wherein a wall scraping device 2 and a wall protecting forming device 3 are arranged on the rotary rod 1, the wall protecting forming device 3 is arranged above the wall scraping device 2, and the wall scraping device 2 and the wall protecting forming device 3 both rotate along with the rotary rod 1.
The wall scraping device 2 comprises a first support 21 arranged on the rotating rod 1, the first support 21 comprises a fixing frame 211 and a moving frame 212, the fixing frame 211 is fixed on the outer peripheral wall of the rotating rod 1, a vertical surface 213 is arranged on the side face of the moving frame 212, a plurality of connecting holes are formed in the moving frame 212 along the length direction of the moving frame 212, and the connecting holes are locked with the fixing holes formed in the fixing frame 211 through bolts. The vertical surface 213 of the first bracket 21 is provided with a transverse scraper group 214.
The wall protection forming device 3 comprises a second bracket 31 connected with the rotating rod 1, wherein a vertical pipeline 32 communicated with a first flow channel 11 arranged in the rotating rod 1 is arranged on the side surface of the second bracket 31, and specifically, a transverse pipeline 33 is connected to the upper part of the vertical pipeline 32, and the transverse pipeline 33 is communicated with the first flow channel 11; the transverse pipeline 33 comprises an inner pipe 331 and an outer pipe 333 which are sleeved with each other, a first stop block 332 is arranged on the outer wall of the inner pipe 331, a second stop block 334 is arranged on the outer wall of the outer pipe 333, and a bolt is connected between the first stop block 332 and the first stop block 332. The vertical pipeline 32 faces downwards, the lower end of the vertical pipeline 32 is of a sealing structure, a first inclined surface 322 is arranged on the inner side surface of the vertical pipeline 32, and the inner diameter of the vertical pipeline 32 gradually decreases downwards along the first inclined surface 322. The outside of the vertical pipeline 32 is provided with a plurality of openings 321 which are arranged at intervals along the length direction of the vertical pipeline 32. The spacing distance of adjacent openings 321 is gradually decreased downward or the pore size of the openings 321 is gradually increased downward.
A collapse-preventing rotary digging pile construction method comprises the following steps:
and (3) preparation of construction: and positioning the pile position by adopting a GPRS total station, wherein the pile position deviation is less than 20 mm, and measuring the ground elevation of the construction site by using a leveling instrument.
Burying a protective barrel: an iron retaining wall is buried at the orifice to protect the orifice, and the inner diameter of the retaining cylinder is larger than the diameter of the drill bit; when the pile casing is buried, the central deviation is not more than 50mm by taking the pile position as a reference, and the periphery of the pile casing is tamped by clay layers.
Drilling and forming holes: the method comprises the steps of selecting a reverse circulation drilling machine to drill a hole, naturally making slurry in the hole in the drilling process, starting a sand and stone pump before drilling to form a reverse circulation environment, supplementing slurry at any time along with slurry leakage and hole depth increase in drilling, and keeping the liquid level of a slurry column; when the hard soil layer is drilled, if the drilling depth is found to be too small each time, the amount of broken slag in the drilling bucket is too small, a cylindrical toothed drill bit with smaller diameter can be replaced, a small hole is drilled first, and then the drilling bucket is used for reaming; when drilling the hard gravel layer, in order to strengthen the hole wall 5 and facilitate the removal of gravel, a proper amount of clay balls can be put into the hole in advance; the drilling bucket in the lower hole is a bailing drilling bucket with a double-layer bottom plate so as to prevent gravel from leaking from the bottom in the drilling process.
And (3) wall protection reinforcement: after drilling to a certain depth, stopping drilling, reinforcing the hole wall 5 by adopting the collapse-preventing rotary pile-digging construction device, specifically, removing the drill rod, putting the construction device into the drill hole, replacing the drill rod by the rotating rod 1 of the construction device, connecting the drill rod with the precession device, switching the sand and stone pump of the precession device into a slurry feeding pump, scraping the screw groove 51 on the hole wall 5 by rotating the wall scraping device 2, then pouring slurry with higher viscosity into the rotating rod 1, and generating a second slurry wall protecting layer 6 covering the screw groove 51 on the hole wall 5 by the rotary coating action of the wall protecting forming device 3.
And (3) concrete pouring: lowering a reinforcement cage and a guide pipe into the drilled hole after hole cleaning, and measuring the thickness of sediment to meet the requirement; the specific gravity of the slurry within 500mm of the bottom of the hole after hole cleaning is less than 1.25, the viscosity is less than or equal to 28s, the sand content is less than or equal to 8 percent, the slurry flowing circularly has no sense of coarse gravel, and the visual colloid rate is normal; the conduit is always buried below the concrete surface in the pouring process, and an inflatable bladder is put into the conduit to isolate water, and the distance between the bottom opening of the conduit and the bottom of the hole is kept within 0.3-0.5 m; the first casting concrete must keep the buried pipe depth to be 2-6m, and the concrete casting must be continuous; and (5) checking the slump, the elevation, the depth of a buried pipe and the over-filling thickness of the concrete.
Before lifting the pipe, measuring the concrete pouring depth and calculating the pipe burial depth, wherein the pipe is slowly lifted up when lifting the pipe, and the bottom of the pipe exceeds the concrete surface to form broken piles due to the fact that the pipe cannot be lifted up at one time; filling coefficients of the cast-in-place piles are 1.1-1.15, and the filling coefficients of each pile are recorded in construction; superfilling or exceeding pile top elevation by 0.8-1 m according to design requirements; when pore-forming and concrete pouring are carried out, the slurry in the pore should be discharged or transferred to a slurry pool which is dug in advance.
Example 2
The embodiment 2 of the application discloses an anti-collapse rotary pile-digging construction device and a construction method thereof.
Referring to fig. 2-4, the collapse-preventing rotary pile-digging construction device of the embodiment comprises a rotary rod 1, wherein a wall layer compacting device 4, a wall protection forming device 3 and a wall scraping device 2 are sequentially arranged on the rotary rod 1 from top to bottom, and the wall scraping device 2 firstly enters a drilling hole during construction.
The wall layer compacting device 4 comprises a rotation stopping sleeve 41 sleeved outside the rotating rod 1, the rotation stopping sleeve 41 does not rotate along with the rotating rod 1, and the upper part of the wall layer compacting device is independently connected with drilling equipment. An annular wall fixing piece 42 is arranged on one side of the rotation stopping sleeve 41, and a vertical reciprocating device 44 is connected between the annular wall fixing piece 42 and the rotation stopping sleeve 41. The vertical reciprocating device 44 comprises a mounting seat 441, a vertical connecting rod 442, a transverse connecting rod 443 and a reciprocating rod sleeve 444, wherein the mounting seat 441 is fixed on the rotation stopping sleeve 41, the vertical connecting rod 442 penetrates through the mounting seat 441, one end of the transverse connecting rod 443 is connected with the vertical connecting rod 442, the other end of the transverse connecting rod 443 is matched and connected with a reciprocating groove 445 formed in the peripheral surface of the reciprocating rod sleeve 444, and the reciprocating rod sleeve 444 is fixedly sleeved on the outer wall of the rotary rod 1. The outer peripheral surface of the annular wall fixing member 42 is provided with an upper inclined surface 421 and a lower inclined surface 422, and a middle plane 423 is provided between the upper inclined surface 421 and the lower inclined surface 422. The inner side of the annular fixed wall piece 42 is provided with a connecting column 43, and the end part of the connecting column 43 is connected with a vertical connecting rod 442; the connecting post 43 is a length-adjustable structure comprising a first post 431 and a second post 432, and the first post 431 and the second post 432 are locked by bolts.
The wall scraping device 2 comprises a first support 21 arranged on the rotating rod 1, the first support 21 comprises a fixing frame 211 and a moving frame 212, the fixing frame 211 is fixed on the outer peripheral wall of the rotating rod 1, a vertical surface 213 is arranged on the side face of the moving frame 212, a plurality of connecting holes are formed in the moving frame 212 along the length direction of the moving frame 212, and the connecting holes are locked with the fixing holes formed in the fixing frame 211 through bolts. The vertical surface 213 of the first bracket 21 is provided with a transverse scraper group 214.
The wall protection forming device 3 comprises a second bracket 31 connected with the rotating rod 1, wherein a vertical pipeline 32 communicated with a first flow channel 11 arranged in the rotating rod 1 is arranged on the side surface of the second bracket 31, and specifically, a transverse pipeline 33 is connected to the upper part of the vertical pipeline 32, and the transverse pipeline 33 is communicated with the first flow channel 11; the transverse pipeline 33 comprises an inner pipe 331 and an outer pipe 333 which are sleeved with each other, a first stop block 332 is arranged on the outer wall of the inner pipe 331, a second stop block 334 is arranged on the outer wall of the outer pipe 333, and a bolt is connected between the first stop block 332 and the first stop block 332. The vertical pipeline 32 faces downwards, the lower end of the vertical pipeline 32 is of a sealing structure, a first inclined surface 322 is arranged on the inner side surface of the vertical pipeline 32, and the inner diameter of the vertical pipeline 32 gradually decreases downwards along the first inclined surface 322. The outside of the vertical pipeline 32 is provided with a plurality of openings 321 which are arranged at intervals along the length direction of the vertical pipeline 32. The spacing distance of adjacent openings 321 is gradually decreased downward or the pore size of the openings 321 is gradually increased downward.
Referring to fig. 5, the construction method of the anti-collapse rotary pile according to embodiment 2 is different from embodiment 1 in that, when the retaining wall is reinforced, after drilling to a certain depth, the drilling is stopped, the hole wall 5 is reinforced by adopting the anti-collapse rotary pile construction device as described above, specifically, the drill pipe is removed, the construction device is put into the drill hole, the rotating rod 1 of the construction device is connected with the precession device instead of the drill pipe, the precession device sand pump is switched to the slurry pump, the screw groove 51 is scraped on the hole wall 5 firstly by the rotation of the wall scraping device 2 arranged at the lowest part of the rotating rod 1, then the slurry with higher viscosity is poured into the rotating rod 1, the second slurry retaining wall 6 covering the screw groove 51 is generated on the hole wall 5 by the rotary coating action of the retaining wall forming device 3, and the wall compacting device 4 arranged at the uppermost part of the rotating rod 1 is driven by the rotation of the rotating rod 1 to move up and down along the reciprocating rod sleeve 444, and the second slurry retaining wall 6 is reinforced by the annular wall fixing member 42.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (10)
1. The utility model provides a prevent sinking digs stake construction equipment soon which characterized in that: the wall scraping device comprises a rotating rod (1), wherein a wall scraping device (2) and a wall protecting forming device (3) are arranged on the rotating rod (1), and the wall protecting forming device (3) is arranged above the wall scraping device (2); the wall scraping device (2) comprises a first support (21) arranged on a rotating rod (1), a vertical surface (213) is arranged on the side face of the first support (21), a transverse scraper group (214) is arranged on the vertical surface (213), a wall protecting forming device (3) is arranged on the rotating rod (1) on the upper portion of the first support (21), the wall protecting forming device (3) comprises a second support (31) connected with the rotating rod (1), a vertical pipeline (32) communicated with a first flow channel (11) arranged in the rotating rod (1) is arranged on the side face of the second support (31), the vertical pipeline (32) faces downwards, the lower end of the vertical pipeline (32) is of a sealing structure, and a plurality of holes (321) are formed in the outer side of the vertical pipeline (32) along the length direction of the vertical pipeline (32) at intervals.
2. The collapse-preventing rotary pile driving construction device according to claim 1, wherein: the upper part of the vertical pipeline (32) is connected with a transverse pipeline (33), and the transverse pipeline (33) is communicated with the first flow channel (11); the transverse pipeline (33) comprises an inner pipe (331) and an outer pipe (333) which are sleeved with each other, a first stop block (332) is arranged on the outer wall of the inner pipe (331), a second stop block (334) is arranged on the outer wall of the outer pipe (333), and a bolt is connected between the first stop block (332) and the first stop block (332).
3. The collapse-preventing rotary pile driving construction device according to claim 1, wherein: the spacing distance between the adjacent holes (321) is gradually reduced downwards or the pore size of the holes (321) is gradually increased downwards.
4. The collapse-preventing rotary pile driving construction device according to claim 1, wherein: the inner side surface of the vertical pipeline (32) is provided with a first inclined surface (322), and the inner diameter of the vertical pipeline (32) gradually decreases downwards along the first inclined surface (322).
5. The collapse-preventing rotary pile driving construction device according to claim 1, wherein: the first support (21) comprises a fixing frame (211) and a moving frame (212), wherein the fixing frame (211) is fixed on the peripheral wall of the rotating rod (1), the vertical surface (213) is arranged on the moving frame (212), a plurality of connecting holes are formed in the moving frame (212) along the length direction of the moving frame (212), and the connecting holes are locked with the fixing holes formed in the fixing frame (211) through bolts.
6. The collapse-preventing rotary pile driving construction device according to claim 1, wherein: the wall layer compacting device (4) is arranged outside the rotating rod (1), the wall layer compacting device (4) comprises a rotation stopping sleeve (41) sleeved outside the rotating rod (1), an annular wall fixing piece (42) is arranged on one side of the rotation stopping sleeve (41), and a vertical reciprocating device (44) is connected between the annular wall fixing piece (42) and the rotation stopping sleeve (41).
7. The collapse-preventing rotary pile driving construction device according to claim 6, wherein: the vertical reciprocating device (44) comprises a mounting seat (441), a vertical connecting rod (442), a transverse connecting rod (443) and a reciprocating rod sleeve (444), wherein the mounting seat (441) is fixed on a rotation stopping sleeve (41), the vertical connecting rod (442) penetrates through the mounting seat (441), one end of the transverse connecting rod (443) is connected with the vertical connecting rod (442), the other end of the transverse connecting rod (443) is matched and connected with a reciprocating groove (445) formed in the peripheral surface of the reciprocating rod sleeve (444), and the reciprocating rod sleeve (444) is fixedly sleeved on the outer wall of the rotating rod (1).
8. The collapse-preventing rotary pile driving construction device according to claim 7, wherein: a connecting column (43) is arranged on the inner side of the annular wall fixing piece (42), and the end part of the connecting column (43) is connected with a vertical connecting rod (442); the connecting column (43) is a length-adjustable structure consisting of a first column (431) and a second column (432), and the first column (431) and the second column (432) are locked by bolts.
9. The collapse-preventing rotary pile driving construction device according to claim 8, wherein: the outer peripheral surface of the annular wall fixing piece (42) is provided with an upper inclined surface (421) and a lower inclined surface (422), and a middle plane (423) is arranged between the upper inclined surface (421) and the lower inclined surface (422).
10. A collapse-preventing rotary digging pile construction method is characterized in that: the method comprises the following steps: and (3) preparation of construction: setting out and positioning the pile by adopting a GPRS total station, and checking the ground elevation by using a level meter; burying a protective barrel: burying a pile casing by taking a pile position as a reference, arranging a slurry overflow hole at the upper part of the pile casing, and tamping the periphery of the pile casing by clay layering; drilling and forming holes: drilling a hole by using a reverse circulation drilling machine, naturally pulping in the hole in the drilling process, and starting a sand and stone pump before drilling to form a reverse circulation environment, wherein slurry is replenished at any time along with slurry leakage and hole depth increase in the drilling process; and (3) wall protection reinforcement: after drilling to a certain depth, stopping drilling, reinforcing a hole wall (5) by adopting the collapse-preventing rotary digging pile construction device according to claim 1, specifically, removing a drill rod, putting the construction device into the drill hole, connecting a rotating rod (1) of the construction device with a screwing device instead of the drill rod, scraping a thread groove (51) on the hole wall (5) by rotating a wall scraping device (2), then pouring the prepared viscous slurry into the rotating rod (1), and generating a second slurry wall protecting layer (6) covering the thread groove (51) on the hole wall (5) by the rotary coating action of a wall protecting forming device (3); and (3) concrete pouring: and (5) placing a reinforcement cage and a guide pipe into the drilled hole after hole cleaning, and pouring concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211710991.3A CN117090209A (en) | 2022-12-29 | 2022-12-29 | Collapse-preventing rotary pile-digging construction device and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211710991.3A CN117090209A (en) | 2022-12-29 | 2022-12-29 | Collapse-preventing rotary pile-digging construction device and construction method thereof |
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| Publication Number | Publication Date |
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| CN117090209A true CN117090209A (en) | 2023-11-21 |
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| CN202211710991.3A Pending CN117090209A (en) | 2022-12-29 | 2022-12-29 | Collapse-preventing rotary pile-digging construction device and construction method thereof |
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| Country | Link |
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| CN (1) | CN117090209A (en) |
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- 2022-12-29 CN CN202211710991.3A patent/CN117090209A/en active Pending
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