CN117328445B - Construction device for air hardening cement soil mixing pile - Google Patents
Construction device for air hardening cement soil mixing pile Download PDFInfo
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- CN117328445B CN117328445B CN202311628843.1A CN202311628843A CN117328445B CN 117328445 B CN117328445 B CN 117328445B CN 202311628843 A CN202311628843 A CN 202311628843A CN 117328445 B CN117328445 B CN 117328445B
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- air
- stirring shaft
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- 239000004568 cement Substances 0.000 title claims abstract description 81
- 239000002689 soil Substances 0.000 title claims abstract description 34
- 238000010276 construction Methods 0.000 title claims abstract description 15
- 238000003756 stirring Methods 0.000 claims abstract description 90
- 239000002002 slurry Substances 0.000 claims abstract description 57
- 239000007921 spray Substances 0.000 claims abstract description 36
- 238000000034 method Methods 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims description 23
- 238000001514 detection method Methods 0.000 claims description 17
- 230000007306 turnover Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 16
- 239000004575 stone Substances 0.000 abstract description 9
- 239000011440 grout Substances 0.000 abstract description 6
- 238000004140 cleaning Methods 0.000 abstract 1
- 230000005484 gravity Effects 0.000 description 8
- 230000000903 blocking effect Effects 0.000 description 7
- 238000005553 drilling Methods 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000007711 solidification Methods 0.000 description 4
- 230000008023 solidification Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- 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
- E02D5/46—Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the soil
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a construction device of an air hardening cement mixing pile, which relates to the technical field of civil engineering, and comprises a movable base and a cement slurry conveying assembly, wherein a guide cylinder is arranged on one side of the movable base; the inside of guide cylinder is provided with the (mixing) shaft, grout conveying channel and air conveying channel have been seted up to the inside of (mixing) shaft, the bottom of (mixing) shaft is provided with the shower nozzle, the opening has all been seted up to the shower nozzle both sides, all rotate on the diapire in the opening of shower nozzle both sides and be provided with upset push pedal assembly. According to the invention, if hard stone or soil blocks are blocked into the openings on the spray heads, and the bottom of the cement slurry conveying channel or the air conveying channel is blocked, the stirring shaft and the connecting sleeve relatively move, so that the rotating frames in the openings on two sides of the linkage spray heads of the linkage vertical rods are rotated and tilted, the blocked soil blocks or the blocked stone blocks are conveniently and directly pushed out, and dredging is realized, namely, the driving force of the driving guide rail is converted into the blocking-cleaning driving force in the whole process.
Description
Technical Field
The invention relates to the technical field of civil engineering, in particular to a construction device of an air hardening cement-soil mixing pile.
Background
The cement mixing pile is a foundation reinforcing method suitable for saturated soft clay. The method uses cement as a curing agent, forcibly stirs the soft soil and the curing agent in the deep part of the foundation by stirring machinery, and uses a series of physical and chemical reactions generated between the curing agent and the soft soil to consolidate the soft soil into an artificial improved foundation with integrity, water stability and certain strength. The solidification mechanism of the cement soil mainly comprises cement hydrolysis and hydration reaction, and hydration and carbonation of soil particles and cement. The carbonation of soil cement requires reaction with air or carbon dioxide in water, so that air is generally introduced during stirring of the ground in order to enhance the effect.
The Chinese patent with the publication number of CN211735367U discloses a construction device of an air hardening cement mixing pile, which comprises pulping equipment, compressed air manufacturing equipment, a mixing pile machine and a control host. The stirring machine comprises a power head, a drill rod and stirring blades. The hollow portion of the drill pipe has a cement slurry passage and an air passage. According to the double-channel drill rod, cement paste and air are sprayed in the stirring process, so that a solidification mechanism of carbonation of cement soil is brought into play, and the strength growth speed of deep cement soil is accelerated.
The defects of the prior art scheme are that: the passageway export that is used for spouting grout and air on the drilling rod among the above-mentioned scheme is in the drilling rod bottom, in the drilling rod down ground in-process, the passageway export gets into earth very easily, thereby suffer to block, though general weak soil blocks relies on grout or air fluid to strike the mediation easily, but if there is hard soil block or stone to block into the passageway export in the intention, and when the card is dead, it is difficult to rely on fluid such as grout or air to strike to open in the earth, need rise the drilling rod earlier, then shut down, and artifical the dependence apparatus mediation, when current drilling rod is blocked in bottom passageway export, do not possess clear stifled function, in case block, then unable normal continuation operation, need rely on other apparatuses of manual operation to dredge, the operation is used inadequately, construction progress and efficiency have also been influenced simultaneously.
Disclosure of Invention
The invention aims to provide a construction device for an air-hardening cement-soil mixing pile, which solves the technical problems that in the prior art, if a channel outlet at the bottom is blocked by a hard soil block or a stone block in the mixing construction process, the blocking cannot be effectively removed, and the construction progress and efficiency of mixing operation are affected.
The technical problems to be solved by the invention can be realized by the following technical scheme:
the construction device of the air hardening cement mixing pile comprises a movable base and a cement slurry conveying assembly, wherein a guide cylinder is arranged on one side of the movable base, and a conveying hose is arranged at the top of the guide cylinder; the stirring device is characterized in that a stirring shaft in running fit with the conveying hose is arranged in the guide cylinder, a driving guide rail is embedded on the inner wall of one side of the guide cylinder, a lifting block is arranged on the driving guide rail in a sliding fit manner, the upper end of the stirring shaft is connected to the lifting block in a running manner, and a rotary driving assembly in matched connection with the stirring shaft is arranged on the lifting block;
a cement slurry conveying channel and an air conveying channel are formed in the stirring shaft; the bottom end of the stirring shaft is provided with a spray head, openings are formed in two sides of the spray head, and the inner bottom walls of the two openings are respectively provided with a turnover push plate assembly in a rotating mode; the top of grout conveying passageway and air conveying passageway all is provided with the ejector subassembly, the top of (mixing) shaft is provided with the spacing aggregate unit with ejector subassembly matched with, and spacing aggregate unit still cooperatees with upset push pedal subassembly, vertical equidistance distributes on the inner wall of guide cylinder has a plurality of spacing bulge loops with spacing aggregate unit matched with.
As a further scheme of the invention: the turnover pushing plate assembly comprises a rotating frame and a movable rotating plate, one end of the rotating frame is rotatably connected with the inner wall of the opening at the corresponding side of the spray head through a hinge, the movable rotating plate is attached to the upper side of the rotating frame, and one end of the movable rotating plate is rotatably connected with the rotating frame through the hinge; the movable cement slurry conveying device is characterized in that a connecting sliding chute is formed in one side, far away from the movable rotating plate, of the rotating frame, a movable cavity is formed in the inner side of the bottom of the spray head, a top frame is arranged in the movable cavity, a linkage vertical rod connected with the top frame is arranged in a penetrating manner in a cement slurry conveying channel, the linkage vertical rod is matched with a limiting linkage piece, a rotating wheel is connected to the end portion of the top frame in a rotating manner, and the rotating wheel is in sliding connection with the connecting sliding chute in a matching manner.
As a further scheme of the invention: the bottom of the movable cavity is provided with a lower detection end body in a sliding manner, the bottom end of the lower detection end body is exposed out of the bottom of the spray head, and a limiting spring is connected between the lower detection end body and the inner wall of the movable cavity; the two sides of the spray head are provided with plugging sliding plates connected with the lower detection end body, and openings on the two sides of the spray head are respectively matched with the corresponding plugging sliding plates.
As a further scheme of the invention: the two ejector components comprise piston holes, the two piston holes are formed in the top of the stirring shaft, the cement slurry conveying channel and the air conveying channel are respectively communicated with the corresponding piston holes, piston blocks are arranged in the piston holes in a sliding fit mode, elastic sealing films are connected between the bottoms of the piston blocks and the piston holes, ejector rods are connected to the tops of the piston blocks, reset springs are connected between the ejector rods and the outer wall of the stirring shaft, and idler wheels are arranged at the upper ends of the ejector rods.
As a further scheme of the invention: the spacing linkage piece includes the connecting sleeve, the connecting sleeve connects on the elevating block, be provided with the subassembly that aerifys that communicates with air delivery passageway top on the connecting sleeve, one side that the (mixing) shaft top is close to cement slurry delivery passageway is provided with the linkage slider of being connected with linkage montant top, be connected with the xarm on the outer wall of linkage slider, offered on the connecting sleeve's the inner wall with xarm sliding fit's annular spout, connecting sleeve top circumference is connected with a plurality of adapter sleeve bodies, every equal slip interlude has with spacing bulge loop matched with slide damper on the adapter sleeve body, be provided with main linkage ring in the connecting sleeve, and the marginal circumference distribution of main linkage ring has a plurality of gangbars, every the one end of gangbar is through hinge and corresponding slide damper swing joint, and the other end is in main linkage ring swing joint through hinge and ejector pin cooperation below.
As a further scheme of the invention: the inflation assembly comprises an air pump and a connecting transverse tube, the air pump is connected to the outer wall of the connecting sleeve, an annular air groove is formed in the inner wall of the connecting sleeve, the air outlet end of the air pump is communicated with the annular air groove, a sealing rotating ring is arranged in the annular air groove in a jogged mode, the connecting transverse tube is connected to one side of an inner ring of the sealing rotating ring, one end, close to the sealing rotating ring, of the connecting transverse tube is an elastic hose body, and one end, far away from the sealing rotating ring, of the connecting transverse tube is connected with an air conveying channel.
As a further scheme of the invention: the auxiliary reset assembly is arranged on the sliding baffle and comprises an electric telescopic rod, the electric telescopic rod is connected to one end of the sliding baffle, which is close to the linkage rod, the telescopic end of the electric telescopic rod is matched with the inner wall of the connecting sleeve, the auxiliary linkage ring is arranged at the bottom of the main linkage ring in a matched mode, the auxiliary linkage ring is connected with a connecting guide rod, the connecting guide rod penetrates through the main linkage ring, first pressure sensing switches aligned with the auxiliary linkage ring in a matched mode are connected to two sides of the main linkage ring, the first pressure sensing switches are electrically connected with the electric telescopic rod, and the upper end face of the auxiliary linkage ring is provided with a second pressure sensing switch electrically connected with the electric telescopic rod.
As a further scheme of the invention: the rotary driving assembly comprises a driving motor and a linkage gear, the linkage gear is coaxially connected to the stirring shaft, the driving motor is connected to one side of the bottom of the lifting block, and a driving gear meshed with the linkage gear is connected to the main shaft end of the driving motor.
As a further scheme of the invention: the stirring shaft top is close to one side of cement slurry conveying channel and has seted up movable through-hole, extension sliding chamber has all been seted up to movable through-hole upper and lower both sides, linkage slider cooperation slip sets up in movable through-hole, and linkage slider both ends cooperate with the extension sliding chamber that corresponds respectively.
The invention has the beneficial effects that:
when the stirring shaft is drilled into soft soil ground for stirring, the spray heads at the bottom of the stirring shaft spray cement slurry and air at the same time, so that the cement slurry and the soil are effectively mixed together, and the solidification mechanism of the carbonation effect of the cement soil is effectively exerted by the air, the strength increasing speed of the deep cement soil is accelerated, and in the process of the stirring shaft operation, if hard stone blocks or soil blocks are blocked into openings on the spray heads, so that the bottom of a cement slurry conveying channel or an air conveying channel is blocked, a piston block arranged at the top is lifted up due to the accumulated boosting of the cement slurry or the air in the corresponding channel, so that the piston block acts on a main linkage ring through a push rod, a sliding baffle plate which is in linkage distribution of the main linkage ring extends out of the top of a connecting sleeve, so that the connecting sleeve can not continuously descend, and at the moment, the linkage driving guide rail can continuously descend for a certain distance, and in the process, the relative movement occurs between the stirring shaft and the connecting sleeve, so that a rotating frame in the openings on two sides of the spray heads is rotated, the blocked soil blocks or the blocks are conveniently and directly pushed out, namely the whole guide rail is converted into a stable driving force, and the stable driving force is avoided, and the stable driving force is realized, and the driving force is avoided.
In the descending process of the stirring shaft, if the end part of the stirring shaft is subjected to larger resistance, the lower probe end body on the spray head moves upwards relative to the spray head, so that the blocking slide plate is driven to lift, openings on two sides of the spray head are blocked, the blocking clearing process is automatically triggered, the stirring shaft cannot continue descending due to the fact that the arranged sliding baffle is stretched out to be blocked on the limiting convex ring at the corresponding position, and damage caused by forced descending and pushing of the end part of the stirring shaft is avoided, namely, limiting is realized due to the sliding baffle used in the blocking clearing process, the sliding baffle can transmit driving force of the driving guide rail to the rotating frame in the blocking clearing process, the blocking clearing is overturned, and limiting protection effect can be exerted when the end part of the stirring shaft is blocked.
When the extended sliding baffle is in conflict with the corresponding limiting convex ring and cannot automatically and tightly press against the corresponding limiting convex ring, the ejector rod is normally reset after the corresponding channel is dredged, so that the auxiliary linkage ring at the bottom of the main linkage ring descends by means of gravity and acts on the first pressure sensing switch, the first pressure sensing switch enables the electric telescopic rod on the sliding baffle to extend, the telescopic end of the electric telescopic rod is in conflict with the inner wall of the connecting sleeve, and then the other end of the electric telescopic rod pushes the sliding baffle to reset, so that the influence on the normal operation of the whole construction device is avoided.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a partial structure of the cooperative connection of the connecting sleeve and the stirring shaft in the invention;
FIG. 3 is an enlarged schematic view of the structure of FIG. 2 at A;
FIG. 4 is an enlarged schematic view of the structure at B in FIG. 2;
FIG. 5 is a schematic view of the partial structure of the connection of the air delivery channel and the annular air groove in the present invention;
FIG. 6 is a schematic perspective view of a closed swivel in accordance with the present invention;
FIG. 7 is an enlarged schematic view of the spray head of the present invention;
FIG. 8 is an enlarged schematic view of the structure at C in FIG. 7;
FIG. 9 is a schematic view of the structure of the top frame of the present invention when the top frame lifts the rotating frame;
FIG. 10 is a schematic diagram of a right-side view of the top frame and the rotating frame of the present invention;
FIG. 11 is a schematic view of a partial structure of the top frame and the connecting chute in the present invention;
FIG. 12 is a schematic top view of the mating connection of the spacing collar and the guide cylinder of the present invention;
fig. 13 is a schematic view of the structure of the sliding damper and the limiting collar of the present invention when they are separated.
In the figure: 1. a movable base; 2. a grout delivery assembly; 3. a guide cylinder; 4. a limit convex ring; 5. a stirring shaft; 6. a conveying hose; 7. a spray head; 8. a drive rail; 9. a lifting block; 10. a driving motor; 11. a drive gear; 12. a linkage gear; 13. an air pump; 14. a connecting sleeve; 15. lifting guide rods; 16. connecting convex rings; 17. a piston bore; 18. a piston block; 19. a push rod; 20. a return spring; 21. an elastic sealing membrane; 22. a cement slurry delivery channel; 23. an air delivery channel; 24. connecting a transverse pipe; 25. a linkage vertical rod; 26. a movable through hole; 27. an extended sliding cavity; 28. a linkage slide block; 29. a cross arm; 30. a connecting sleeve body; 31. a sliding baffle; 32. a main linkage ring; 33. a linkage rod; 34. a first pressure-sensitive switch; 35. an auxiliary linkage ring; 36. a second pressure-sensitive switch; 37. a roller; 38. an electric telescopic rod; 39. connecting a guide rod; 40. an annular air groove; 41. closing the rotating ring; 42. an annular chute; 43. a pulley; 44. a movable cavity; 45. plugging the sliding plate; 46. a lower probe end body; 47. a limit spring; 48. a rotating frame; 49. a top frame; 50. a movable rotating plate; 51. the connecting chute; 52. a rotating wheel.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-13, the construction device of the air-hardening cement-soil mixing pile comprises a movable base 1 and a cement slurry conveying component 2, wherein the cement slurry conveying component 2 is arranged on the movable base 1, the cement slurry conveying component 2 is used for conveying prepared cement slurry in a specified direction, a guide cylinder 3 is vertically arranged on one side of the movable base 1, a conveying hose 6 which is in matched connection with the cement slurry conveying component 2 is arranged at the top of the guide cylinder 3, the conveying hose 6 is communicated with the output end of the cement slurry conveying component 2 and is used for conveying cement slurry, a gravity hammer is hung at a corresponding position of the conveying hose 6 outside the guide cylinder 3, and the gravity hammer relies on gravity to enable one end of the conveying hose 6 inside the guide cylinder 3 to be acted by upward traction force, so that the conveying hose 6 is prevented from completely falling to the bottom inside the guide cylinder 3;
the inside of the guide cylinder 3 is provided with a stirring shaft 5, a plurality of stirring blades are longitudinally distributed on the outer wall of the stirring shaft 5 at equal intervals, a driving guide rail 8 is embedded and installed on the inner wall of one side of the guide cylinder 3, a lifting block 9 is arranged on the driving guide rail 8 in a matched sliding manner, the upper end of the stirring shaft 5 is rotationally connected on the lifting block 9 through a bearing, the lifting block 9 can move up and down along the driving guide rail 8 to conveniently drive the stirring shaft 5 to move up and down, a rotary driving assembly matched and connected with the stirring shaft 5 is arranged on the lifting block 9, the rotary driving assembly comprises a driving motor 10 and a linkage gear 12, the linkage gear 12 is coaxially connected on the stirring shaft 5, the driving motor 10 is connected to one side of the bottom of the lifting block 9, the main shaft end of the driving motor 10 is connected with a driving gear 11 meshed with a linkage gear 12, when the driving motor 10 runs, the driving gear 11 is driven to rotate, thereby driving the linkage gear 12 to rotate, the linkage gear 12 drives the stirring shaft 5 to rotate, then the stirring shaft 5 is driven to longitudinally move by the lifting block 9, so that the stirring operation is conveniently carried out after the stirring shaft is drilled into the ground, a cement slurry conveying channel 22 and an air conveying channel 23 are formed in the stirring shaft 5, the tail end of a conveying hose 6 is rotationally connected to the top end of the stirring shaft 5 and is communicated with the cement slurry conveying channel 22, and the concrete connection relation is as follows: the tail end of the conveying hose 6 is provided with a connecting convex ring 16, the outer ring side wall of the connecting convex ring 16 is embedded on the inner wall of the top of the cement slurry conveying channel 22, the connecting convex ring 16 can rotate relative to the inner wall of the top of the cement slurry conveying channel 22, the central line of the top opening of the cement slurry conveying channel 22 coincides with the axis of the stirring shaft 5, and in the rotation process of the stirring shaft 5, the conveying hose 6 and the stirring shaft 5 can rotate relatively; at the same time, the conveying hose 6 can also guide cement slurry into the cement slurry conveying passage 22;
the bottom of the stirring shaft 5 is provided with a spray head 7, openings are formed in two sides of the spray head 7, and a cement slurry conveying channel 22 and an air conveying channel 23 are respectively communicated with the corresponding openings, so that cement slurry and air are sprayed at the bottom simultaneously when the stirring shaft 5 is rotated to drill into soft soil ground, a solidification mechanism of carbonation of cement soil is exerted, and the strength growth speed of deep cement soil is accelerated;
the inner bottom wall of the opening at two sides of the spray head 7 is rotationally provided with a turnover push plate assembly, the turnover push plate assembly comprises a rotating frame 48 and a movable rotating plate 50, one end of the rotating frame 48 is rotationally connected with the inner wall of the opening at the corresponding side of the spray head 7 through a hinge, the movable rotating plate 50 is rotationally connected with the rotating frame 48 through the hinge, the width of the movable rotating plate 50 is larger than that of the rotating frame 48, so that the movable rotating plate 50 cannot rotate from the joint position to the inner side close to the opening, only can rotate from the joint position to the outer side close to the opening, when the opening on the spray head 7 is blocked, hard soil or stone clamped in the opening is ejected out by the movable rotating plate 50 to clear the blockage when the rotating frame 48 is rotationally tilted, and the movable rotating plate 50 is positioned at the top with the movably connected end of the rotating frame 48, and when the rotating frame 48 is rotationally reset, the movable rotating plate 50 can only rotate from the joint position to the outer side close to the opening, so that the movable rotating plate 50 can be effectively blocked when cement paste or air is sprayed outwards, and the movable rotating plate 50 is prevented from being generated;
the inner side of the bottom of the spray head 7 is provided with a movable cavity 44, a top frame 49 is arranged in the movable cavity 44, two ends of the top frame 49 penetrate through the inner wall of the top of the movable cavity 44 and respectively penetrate into corresponding openings, one side of the rotating frame 48 away from the movable rotating plate 50 is provided with a connecting sliding groove 51, the end part of the top frame 49 is rotatably connected with a rotating wheel 52, the rotating wheel 52 is matched and slidably connected in the connecting sliding groove 51, the rotating wheel 52 can roll along the connecting sliding groove 51 and cannot be separated from the connecting sliding groove 51, when the top frame 49 moves upwards, two ends of the top frame 49 respectively push the corresponding rotating frame 48 to rotate and tilt, and when the top frame 49 descends and resets, the rotating wheel 52 is limited in the connecting sliding groove 51, the rotating frame 48 can be driven to effectively rotate and reset;
a linkage vertical rod 25 is arranged in the cement slurry conveying passage 22 in a penetrating way, the bottom end of the linkage vertical rod 25 is inserted in the movable cavity 44, the bottom end of the linkage vertical rod 25 is connected with the top frame 49, and the linkage vertical rod 25 and the top frame 49 synchronously move up and down; the upper end of the linkage vertical rod 25 extends to the top position of the cement slurry conveying passage 22.
The top of the stirring shaft 5 is provided with a limiting linkage piece which is matched with the overturning push plate assembly; the limiting linkage piece comprises a connecting sleeve 14, and the connecting sleeve 14 is connected to the lifting block 9; the two sides of the bottom of the connecting sleeve 14 are fixedly connected with lifting guide rods 15, the lifting guide rods 15 are inserted on the lifting blocks 9, an inflating component communicated with the top of the air conveying channel 23 is arranged on the connecting sleeve 14, the inflating component comprises an air pump 13 and a connecting transverse pipe 24, the air pump 13 is connected to the outer wall of the connecting sleeve 14, an annular air groove 40 is formed in the inner wall of the connecting sleeve 14, the air outlet end of the air pump 13 is communicated with the annular air groove 40, a sealing rotating ring 41 is embedded in the annular air groove 40, the sealing rotating ring 41 can rotate in the annular air groove 40, the outer ring of the sealing rotating ring 41 is opened and is conveniently communicated with the inside of the annular air groove 40, namely, the sealing rotating ring 41 and the annular air groove 40 are combined to form an annular ventilating space, the connecting transverse pipe 24 is connected to one side of the inner ring of the sealing rotating ring 41, one end of the connecting transverse pipe 24 close to the sealing rotating ring 41 is an elastic hose body, the connecting transverse pipe 24 is far away from the sealing rotating ring 41, one end of the sealing rotating ring 23 is connected with the air conveying channel 23, and when the air pump 13 is inflated into a space formed by the annular air groove 40 and the sealing rotating ring 41, air can enter the sealing rotating ring 24 through the connecting transverse pipe 24 and rotate along with the sealing rotating shaft 5, namely, the sealing rotating shaft 5 is communicated with the sealing rotating ring 41, and the sealing rotating shaft is in the state along with the sealing rotating shaft 5;
one side of the top of the stirring shaft 5, which is close to the cement slurry conveying channel 22, is provided with a linkage slide block 28 connected with the top of the linkage vertical rod 25, and the concrete connection relationship between the linkage slide block 28 and the stirring shaft 5 is as follows: the top of the stirring shaft 5 is provided with a movable through hole 26 close to one side of the cement slurry conveying channel 22, the upper side and the lower side of the movable through hole 26 are provided with an extending sliding cavity 27, a linkage sliding block 28 is arranged in the movable through hole 26 in a matched sliding manner, the two ends of the linkage sliding block 28 are respectively matched with the corresponding extending sliding cavities 27, the linkage sliding block 28 can drive a linkage vertical rod 25 to vertically slide relative to the stirring shaft 5, in the sliding process, the two ends of the linkage sliding block 28 are always positioned in the corresponding extending sliding cavities 27, the movable through hole 26 is always closed, the outer wall of the linkage sliding block 28 is connected with a cross arm 29, the inner wall of a connecting sleeve 14 is provided with an annular sliding groove 42, the tail end of the cross arm 29 is matched and slidingly connected with the annular sliding groove 42 through a pulley 43, namely, in the rotation process of the stirring shaft 5, the cross arm 29 is driven to rotate around the cross arm 29, the tail end of the cross arm is always slid along the annular sliding groove 42 and is kept to be connected with the connecting sleeve 14, when the connecting sleeve 14 is relatively lifted up to the block 9, the linkage sliding block 28 and the linkage sliding block 25 relatively to the stirring shaft 5 are longitudinally moved, and the end of the connecting transverse tube 24 close to the rotating ring 41 is an elastic body to prevent the connecting sleeve from bending and longitudinal movement of the connecting hose 14;
the top of the cement slurry conveying channel 22 and the top of the air conveying channel 23 are respectively provided with an ejection assembly matched with the limiting linkage piece, the two ejection assemblies respectively comprise piston holes 17, the two piston holes 17 are respectively formed in the top of the stirring shaft 5, the cement slurry conveying channel 22 and the air conveying channel 23 are respectively communicated with the corresponding piston holes 17, a piston block 18 is arranged in the piston holes 17 in a sliding fit manner, an elastic sealing film 21 is connected between the bottom of the piston block 18 and the piston holes 17, the top of the piston block 18 is connected with a push rod 19, a reset spring 20 is connected between the push rod 19 and the outer wall of the stirring shaft 5, the reset spring 20 can be stretched and deformed, and the upper end of the push rod 19 is provided with a roller 37;
a plurality of connecting sleeve bodies 30 are circumferentially distributed at the top of the connecting sleeve 14, sliding baffle plates 31 are inserted in each connecting sleeve body 30 in a sliding manner, a main linkage ring 32 is arranged in the connecting sleeve 14, a plurality of linkage rods 33 are circumferentially distributed at the edge of the main linkage ring 32, one end of each linkage rod 33 is movably connected with the corresponding sliding baffle plate 31 through a hinge, the other end of each linkage rod 33 is movably connected with the main linkage ring 32 through a hinge, and the ejector rod 19 is matched below the main linkage ring 32;
when the bottom openings of one or both of the cement slurry conveying channels 22 and the air conveying channels 23 are blocked, cement slurry or air in the cement slurry conveying channels 22 or the air conveying channels 23 gradually accumulate and boost pressure and finally act in the corresponding piston holes 17, the piston blocks 18 in the piston holes 17 are pushed to rise upwards, then the piston blocks 18 drive the push rods 19 to rise, the push rods 19 push the main linkage rings 32, and the main linkage rings 32 drive the distributed sliding baffles 31 to slide and stretch out to the outside of the connecting sleeve 14 through the distributed linkage rods 33;
a plurality of limit convex rings 4 matched with the sliding baffle plates 31 are longitudinally and equidistantly distributed on the inner wall of the guide cylinder 3, and a notch is formed in one side, close to the driving guide rail 8, of the limit convex rings 4 so as to prevent the lifting block 9 from moving up and down;
when the sliding baffle 31 is in the original position, along with the up-and-down movement of the stirring shaft 5, the sliding baffle 31 is in no contact with the limiting convex ring 4, when the sliding baffle 31 distributed is extended due to the blocking of the bottom opening of the cement slurry conveying channel 22 or the air conveying channel 23, the extended sliding baffle 31 can be abutted against the limiting convex ring 4, and the end part of the sliding baffle 31 is distributed with balls, so that the sliding baffle 31 and the contacted limiting convex ring 4 can slide relatively, and the sliding baffle 31 is matched with the limiting convex ring 4, so that the connecting sleeve 14 can not continuously descend along with the lifting block 9, and the connecting sleeve 14 drives the linkage vertical rod 25 to longitudinally move relative to the stirring shaft 5; the driving force of the driving guide rail 8 is conveniently converted into the blocking-removing driving force, no additional power is needed, and the operation is stable and effective;
an auxiliary reset assembly is arranged on the sliding baffle 31, the auxiliary reset assembly comprises an electric telescopic rod 38, the electric telescopic rod 38 is horizontally and fixedly connected to one end of the sliding baffle 31 close to the linkage rod 33, the telescopic end of the electric telescopic rod 38 is matched with the inner wall of the connecting sleeve 14, and the electric telescopic rod 38 is in a contracted state in an initial state; the bottom of the main linkage ring 32 is provided with an auxiliary linkage ring 35 in a matched manner, the auxiliary linkage ring 35 is fixedly connected with a connecting guide rod 39, the connecting guide rod 39 penetrates through the main linkage ring 32, both sides of the main linkage ring 32 are connected with a first pressure sensing switch 34 which is matched and aligned with the auxiliary linkage ring 35 through rod bodies, the first pressure sensing switch 34 is electrically connected with an extension control circuit of an electric telescopic rod 38, and the upper end surface of the auxiliary linkage ring 35 is provided with a second pressure sensing switch 36 which is electrically connected with a contraction control circuit of the electric telescopic rod 38;
when the ejector rod 19 is not lifted, the top of the ejector rod 19 is abutted against the lower side of the auxiliary linkage ring 35 through the roller 37, the auxiliary linkage ring 35 is attached to the main linkage ring 32 at the moment, namely, the auxiliary linkage ring 35 is not contacted with the first pressure sensing switch 34 at the moment, when the sliding baffle 31 stretches out from the top of the connecting sleeve 14, the telescopic end of the electric telescopic rod 38 is contacted with the inner wall of the connecting sleeve 14, at the moment, if the blockage is cleared, the ejector rod 19 descends and resets, if the sliding baffle 31 is abutted against the limiting bulge loop 4 and cannot reset and retract under the action of the gravity of the main linkage ring 32, and when the ejector rod 19 descends, the auxiliary linkage ring 35 has no supporting effect, the auxiliary linkage ring 35 descends relative to the main linkage ring 32 by gravity, then the auxiliary linkage ring 35 is extruded to act on the first pressure sensing switch 34, the first pressure sensing switch 34 enables the electric telescopic rod 38 to stretch, and when the telescopic end of the electric telescopic rod 38 is abutted against the inner wall of the connecting sleeve 14, the sliding baffle 31 can be pushed to slide and accommodated towards the central position of the top of the connecting sleeve 14 during the elongation, so that the sliding baffle 31 and the limiting bulge loop 4 are separated from the stirring shaft 5 is realized, and the stirring shaft 5 can continue to normally and normally operate;
the bottom of the movable cavity 44 is slidably provided with a lower detection end body 46, the bottom end of the lower detection end body 46 is exposed out of the bottom of the spray head 7, a limit spring 47 is connected between the lower detection end body 46 and the inner wall of the movable cavity 44, the limit spring 47 can be compressed, the limit spring 47 with proper specification is selected, the limit spring 47 is ensured to be unable to be compressed when the lower detection is performed on normal soft soil, and the limit spring 47 can be compressed and deformed only when the lower detection is subjected to resistance exceeding a certain value;
the two sides of the spray head 7 are provided with plugging slide plates 45 connected with the lower probe end body 46, and openings on the two sides of the spray head 7 are respectively matched with the corresponding plugging slide plates 45;
in the process that the stirring shaft 5 drills into the ground, if hard earth or stone is encountered, when the stirring shaft is subjected to larger resistance, the lower detection end body 46 slides into the movable cavity 44 due to the action of the resistance, the limit springs 47 are compressed, and the plugging sliding plates 45 on two sides slide upwards along with the synchronous movement of the lower detection end body 46 to plug the corresponding openings, so that the bottoms of the cement slurry conveying channel 22 and the air conveying channel 23 are plugged, the sliding baffle 31 is effectively triggered to extend out from the top of the connecting sleeve 14, the stirring shaft 5 cannot move downwards relative to the guide cylinder 3, and damage caused by forced descending and pushing of the end part of the stirring shaft 5 is avoided.
The working principle of the invention is as follows: firstly, a driving motor 10 is controlled to drive a stirring shaft 5 to rotate, then a lifting block 9 is driven to descend along a driving guide rail 8, so that the stirring shaft 5 is driven to descend and drill into soft soil ground, a cement slurry conveying assembly 2 is started, cement slurry is conveyed into a cement slurry conveying channel 22 in the stirring shaft 5, an air pump 13 is started, when the air pump 13 charges air into a space formed by an annular air groove 40 and a closed rotating ring 41, air can enter an air conveying channel 23 through a connecting transverse pipe 24, cement slurry and air are sprayed at the bottom of the stirring shaft 5 at the same time, a curing mechanism of cement soil carbonation is exerted, and the strength growth speed of deep cement soil is accelerated;
when the air pump 13 charges air into the space formed by the annular air groove 40 and the closed rotating ring 41, the connecting transverse pipe 24 can drive the closed rotating ring 41 to rotate along the annular air groove 40, namely, a communicating state is maintained, and the connecting transverse pipe 24 can rotate along with the stirring shaft 5 relative to the connecting sleeve 14;
when the bottom openings of one or both of the cement slurry conveying channels 22 and the air conveying channels 23 are blocked, cement slurry or air in the cement slurry conveying channels 22 or the air conveying channels 23 gradually accumulate and boost pressure and finally act in the corresponding piston holes 17, the piston blocks 18 in the piston holes 17 are pushed to lift upwards, then the piston blocks 18 drive the push rods 19 to lift, the auxiliary linkage rings 35 and the main linkage rings 32 which are attached together are pushed by the push rods 19 to lift upwards, and the main linkage rings 32 drive the distributed sliding baffles 31 to slide outwards and stretch out of the connecting sleeve 14 through the distributed linkage rods 33;
the extending sliding baffle 31 can be abutted against the limit convex ring 4 at the corresponding height position of the guide cylinder 3, so that the sliding baffle 31 is matched with the limit convex ring 4, the connecting sleeve 14 can not continuously descend along with the lifting block 9, the lifting block 9 also drives the stirring shaft 5 to continuously descend for a small distance, the distance is the movable distance of the linkage sliding block 28, a small section of separation movement longitudinally occurs between the connecting sleeve 14 and the stirring shaft 5, the linkage sliding block 28 which is matched and connected with the connecting sleeve 14 through the cross arm 29 moves upwards relative to the stirring shaft 5 in the process, and the end part of the connecting transverse tube 24, which is close to the closed rotary ring 41, is an elastic flexible tube body and can be bent and deformed to avoid interference of the longitudinal movement of the connecting sleeve 14, the linkage vertical rod 25 also moves upwards relative to the stirring shaft 5 along with the linkage sliding block 28, the linkage vertical rod 25 drives the top frame 49 to move upwards relative to the movable cavity 44 at the bottom of the spray head 7, two ends of the top frame 49 respectively push the rotating frame 48 in the opening at the corresponding side of the spray head 7 to rotate and tilt, the rotating frame 48 pushes out hard soil or stone blocked in the opening by virtue of the movable rotating plate 50, so as to realize normal dredging of the cement paste conveying channel 22 and the air conveying channel 23 after clearing blockage, at the moment, the piston block 18 drives the ejector rod 19 to descend and reset, at the moment, if the sliding baffle 31 is propped against the limiting convex ring 4 and cannot reset and retract under the action of the gravity of the main linkage ring 32 due to the fact that the ejector rod 19 descends, the auxiliary linkage ring 35 has no supporting effect on the auxiliary linkage ring 35, the auxiliary linkage ring 35 descends relative to the main linkage ring 32 due to gravity, then the auxiliary linkage ring 35 is extruded and acted on the first pressure sensing switch 34, the first pressure sensing switch 34 enables the electric telescopic rod 38 to elongate, at this time, the telescopic end of the electric telescopic rod 38 is abutted against the inner wall of the connecting sleeve 14, so that the sliding baffle 31 can be pushed to slide and be stored towards the center position of the top of the connecting sleeve 14 during extension, the sliding baffle 31 is separated from the limiting convex ring 4, the stirring shaft 5 can be conveniently and normally lowered for operation, the auxiliary linkage ring 35 and the main linkage ring 32 are lowered, the auxiliary linkage ring 35 is supported by the ejector rod 19 again and is in contact with the bottom of the main linkage ring 32, the second pressure sensing switch 36 senses the movement, and the second pressure sensing switch 36 enables the electric telescopic rod 38 to shrink and reset;
after the sliding baffle 31 is stored, the connecting sleeve 14 releases the limit, so that the connecting sleeve descends and resets relative to the stirring shaft 5, and the linkage vertical rod 25 is driven to descend and reset relative to the stirring shaft 5, so that the top frame 49 drives the rotating frame 48 to rotate and reset; the whole process is to convert the driving force of the driving guide rail 8 into the blocking-removing driving force, no additional power is needed, and the operation is stable and effective;
and in the process that the stirring shaft 5 drills into the ground, if hard earth or stone is encountered, when the stirring shaft is subjected to larger resistance, the lower detection end body 46 slides into the movable cavity 44 due to the action of the resistance, the limit spring 47 is compressed, and the plugging sliding plates 45 at the two sides slide upwards along with the synchronous movement of the lower detection end body 46 to plug the corresponding openings, so that the bottoms of the cement slurry conveying channel 22 and the air conveying channel 23 are plugged, the sliding baffle 31 is effectively triggered to extend out from the top of the connecting sleeve 14, the stirring shaft 5 cannot move downwards for a long distance relative to the guide cylinder 3, and the damage caused by forced descending and pushing of the end part of the stirring shaft 5 is avoided.
The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (3)
1. The construction device of the air hardening cement mixing pile comprises a movable base (1) and a cement slurry conveying assembly (2), wherein a guide cylinder (3) is arranged on one side of the movable base (1), and a conveying hose (6) is arranged at the top of the guide cylinder (3); a stirring shaft (5) in running fit with the conveying hose (6) is arranged in the guide cylinder (3), a driving guide rail (8) is embedded on the inner wall of one side of the guide cylinder (3), a lifting block (9) is arranged on the driving guide rail (8) in a matched sliding manner, the upper end of the stirring shaft (5) is connected to the lifting block (9) in a running manner, and a rotary driving assembly in matched connection with the stirring shaft (5) is arranged on the lifting block (9); the method is characterized in that:
a cement slurry conveying channel (22) and an air conveying channel (23) are formed in the stirring shaft (5); the bottom end of the stirring shaft (5) is provided with a spray head (7), openings are formed in two sides of the spray head (7), and the inner bottom wall of each opening is provided with a turnover push plate assembly in a rotating mode; the top of the cement slurry conveying channel (22) and the top of the air conveying channel (23) are respectively provided with a pushing component, the top of the stirring shaft (5) is provided with a limiting linkage piece matched with the pushing components, the limiting linkage piece is also matched with the overturning push plate component, and a plurality of limiting convex rings (4) are longitudinally distributed on the inner wall of the guide cylinder (3) at equal intervals;
the rotary driving assembly comprises a driving motor (10) and a linkage gear (12), the linkage gear (12) is coaxially connected to the stirring shaft (5), the driving motor (10) is connected to one side of the bottom of the lifting block (9), and a driving gear (11) meshed with the linkage gear (12) is connected to the main shaft end of the driving motor (10); the turnover pushing plate assembly comprises a rotating frame (48) and a movable rotating plate (50), one end of the rotating frame (48) is rotatably connected with the inner wall of an opening on the corresponding side of the spray head (7) through a hinge, the movable rotating plate (50) is attached to the upper side of the rotating frame (48), and one end of the movable rotating plate (50) is rotatably connected with the rotating frame (48) through a hinge; a connecting sliding chute (51) is formed in one side, far away from the movable rotating plate (50), of the rotating frame (48), a movable cavity (44) is formed in the inner side of the bottom of the spray head (7), a top frame (49) is arranged in the movable cavity (44), a linkage vertical rod (25) connected with the top frame (49) is arranged in the cement slurry conveying channel (22) in a penetrating mode, the linkage vertical rod (25) is matched with a limiting linkage piece, a rotating wheel (52) is rotatably connected to the end portion of the top frame (49), and the rotating wheel (52) is matched and slidingly connected in the connecting sliding chute (51); the two ejection assemblies comprise piston holes (17), the two piston holes (17) are formed in the top of the stirring shaft (5), the cement slurry conveying channel (22) and the air conveying channel (23) are respectively communicated with the corresponding piston holes (17), piston blocks (18) are arranged in the piston holes (17) in a sliding fit mode, elastic sealing films (21) are connected between the bottoms of the piston blocks (18) and the piston holes (17), ejector rods (19) are connected to the tops of the piston blocks (18), reset springs (20) are connected between the ejector rods (19) and the outer wall of the stirring shaft (5), and idler wheels (37) are arranged at the upper ends of the ejector rods (19); the limiting linkage piece comprises a connecting sleeve (14), the connecting sleeve (14) is connected to the lifting block (9), an inflation assembly communicated with the top of an air conveying channel (23) is arranged on the connecting sleeve (14), a linkage sliding block (28) connected with the top of a linkage vertical rod (25) is arranged on one side, close to the cement slurry conveying channel (22), of the top of a stirring shaft (5), a cross arm (29) is connected to the outer wall of the linkage sliding block (28), an annular chute (42) in sliding fit with the cross arm (29) is formed in the inner wall of the connecting sleeve (14), a plurality of connecting sleeve bodies (30) are circumferentially connected to the top of the connecting sleeve (14), sliding baffles (31) matched with the limiting convex rings (4) are slidably inserted on each connecting sleeve body (30), a main linkage moving ring (32) is arranged in the connecting sleeve (14), a plurality of linkage rods (33) are circumferentially distributed on the edge of the main linkage ring (32), one end of each linkage rod (33) is in sliding connection with the corresponding sliding baffle (31) through a hinge, and the other end of each linkage rod (33) is in sliding fit with the main moving ring (19) through the hinge, and the other end of the linkage rod (33) is in sliding fit with the main moving ring (19);
the air inflation assembly comprises an air pump (13) and a connecting transverse tube (24), the air pump (13) is connected to the outer wall of the connecting sleeve (14), an annular air groove (40) is formed in the inner wall of the connecting sleeve (14), the air outlet end of the air pump (13) is communicated with the annular air groove (40), a closed rotating ring (41) is embedded in the annular air groove (40), the connecting transverse tube (24) is connected to one side of the inner ring of the closed rotating ring (41), one end, close to the closed rotating ring (41), of the connecting transverse tube (24) is an elastic hose body, and one end, far away from the closed rotating ring (41), of the connecting transverse tube (24) is connected with an air conveying channel (23); the auxiliary reset assembly is arranged on the sliding baffle (31), the auxiliary reset assembly comprises an electric telescopic rod (38), the electric telescopic rod (38) is connected to one end of the sliding baffle (31) close to the linkage rod (33), the telescopic end of the electric telescopic rod (38) is matched with the inner wall of the connecting sleeve (14), an auxiliary linkage ring (35) is arranged at the bottom of the main linkage ring (32) in a matched mode, a connecting guide rod (39) is connected to the auxiliary linkage ring (35), the connecting guide rod (39) penetrates through the main linkage ring (32), first pressure sensing switches (34) aligned with the auxiliary linkage ring (35) in a matched mode are connected to two sides of the main linkage ring (32), the first pressure sensing switches (34) are electrically connected with the electric telescopic rod (38), and second pressure sensing switches (36) electrically connected with the electric telescopic rod (38) are arranged on the upper end face of the auxiliary linkage ring (35).
2. The construction device of the air-hardening cement-soil mixing pile according to claim 1, wherein a lower detection end body (46) is slidably arranged at the bottom of the movable cavity (44), the bottom end of the lower detection end body (46) is exposed out of the bottom of the spray head (7), and a limit spring (47) is connected between the lower detection end body (46) and the inner wall of the movable cavity (44); the two sides of the spray head (7) are provided with plugging sliding plates (45) connected with the lower detection end body (46), and openings on the two sides of the spray head (7) are respectively matched with the corresponding plugging sliding plates (45).
3. The construction device of the air hardening cement mixing pile according to claim 1, wherein a movable through hole (26) is formed in one side, close to a cement slurry conveying channel (22), of the top of the mixing shaft (5), an extending sliding cavity (27) is formed in the upper side and the lower side of the movable through hole (26), the linkage sliding block (28) is arranged in the movable through hole (26) in a matched sliding mode, and two ends of the linkage sliding block (28) are matched with the corresponding extending sliding cavities (27) respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311628843.1A CN117328445B (en) | 2023-12-01 | 2023-12-01 | Construction device for air hardening cement soil mixing pile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311628843.1A CN117328445B (en) | 2023-12-01 | 2023-12-01 | Construction device for air hardening cement soil mixing pile |
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| CN117328445B true CN117328445B (en) | 2024-03-19 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110761279A (en) * | 2019-11-06 | 2020-02-07 | 上海渊丰地下工程技术有限公司 | Construction method and construction device for air-hardening cement mixing pile |
| CN111188333A (en) * | 2020-01-22 | 2020-05-22 | 上海渊丰地下工程技术有限公司 | Gas-slurry combined four-shaft mixing pile construction equipment and construction method |
| CN211773592U (en) * | 2019-11-06 | 2020-10-27 | 上海渊丰地下工程技术有限公司 | Construction device for improving uniformity of cement soil mixing pile |
| CN113774894A (en) * | 2021-09-18 | 2021-12-10 | 山西省建筑科学研究院有限公司 | Slurry stirring equipment for geotechnical engineering |
| CN115142406A (en) * | 2022-07-22 | 2022-10-04 | 南京华宇建设股份有限公司 | Bidirectional cement mixing pile machine |
-
2023
- 2023-12-01 CN CN202311628843.1A patent/CN117328445B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110761279A (en) * | 2019-11-06 | 2020-02-07 | 上海渊丰地下工程技术有限公司 | Construction method and construction device for air-hardening cement mixing pile |
| CN211773592U (en) * | 2019-11-06 | 2020-10-27 | 上海渊丰地下工程技术有限公司 | Construction device for improving uniformity of cement soil mixing pile |
| CN111188333A (en) * | 2020-01-22 | 2020-05-22 | 上海渊丰地下工程技术有限公司 | Gas-slurry combined four-shaft mixing pile construction equipment and construction method |
| CN113774894A (en) * | 2021-09-18 | 2021-12-10 | 山西省建筑科学研究院有限公司 | Slurry stirring equipment for geotechnical engineering |
| CN115142406A (en) * | 2022-07-22 | 2022-10-04 | 南京华宇建设股份有限公司 | Bidirectional cement mixing pile machine |
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