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CN-122013766-A - Stiff composite pile construction process and pile construction machine for synchronously planting piles by pile casing drill rods

CN122013766ACN 122013766 ACN122013766 ACN 122013766ACN-122013766-A

Abstract

The invention relates to the technical field of stiff composite pile construction, in particular to a stiff composite pile construction process and a construction pile machine for synchronously planting piles by using pile casing drill pipes. According to the invention, the opening and closing drilling plate can be driven to move downwards through the pressurizing traction guide rail, the opening and closing drilling plate drills holes on the ground, the precast concrete pile moves downwards along with the steel pile casing drilling rod, so that the steel pile casing drilling rod and the precast concrete pile synchronously reach a set depth, shrinkage and collapse are avoided, the mortar is ensured to form an effective hole wall, thus the precast concrete pile is prevented from being not centered and eccentric, the pile planting process can be completed by one device, the construction efficiency can be improved, and the manufacturing cost is reduced.

Inventors

  • LIANG HUI
  • WU XIUQING

Assignees

  • 江西金智烜科技有限公司

Dates

Publication Date
20260512
Application Date
20260401

Claims (7)

  1. 1. The utility model provides a with pile casing drilling rod synchronous pile planting's strength nature composite pile construction stake machine, includes crawler (1), pressurization traction guide rail (2) and unit head (3), installs pressurization traction guide rail (2) on crawler (1), installs unit head (3), characterized by on the slider of pressurization traction guide rail (2): the hydraulic pile driving device also comprises a steel pile driving drill rod (4), a hydraulic top clamp (5), an opening and closing shaft (6), an opening and closing drill plate (7), a winch (8), a steel wire rope (9), a precast concrete pile (10), a spraying mechanism and a guiding mechanism, wherein the hydraulic top clamp (5) is uniformly arranged at intervals on the outer circumference of the power head (3), the opening and closing shaft (6) is uniformly arranged at intervals on the lower circumference of the steel pile driving drill rod (4), the opening and closing shaft (6) is connected with the opening and closing drill plate (7), the adjacent two opening and closing drill plates (7) are mutually contacted to form a complete opening and closing drill bit, the winch (8) is arranged on the pressurizing traction guide rail (2), the steel wire rope (9) is wound on the winch (8), the precast concrete pile (10) is positioned in the steel pile driving drill rod (4), the opening and closing drill plate (7) is drilled on the ground, the spraying mechanism is used for forming cement mortar soil piles, the guiding mechanism is used for guiding the steel wire rope (9).
  2. 2. The pile construction machine for stiff composite piles by synchronously planting piles through pile casing drill pipes according to claim 1, wherein the grouting mechanism comprises a hollow rotary grouting device (121), a joint (124) and a female driving sleeve (125), the hollow rotary grouting device (121) is arranged at the bottom of the power head (3), vertical grooves (122) are formed in the steel pile casing drill pipes (4), grouting openings (123) are formed in the open-close drill plates (7), the vertical grooves (122) correspond to the grouting openings (123), the joint (124) is connected to the steel pile casing drill pipes (4), the joint (124) is communicated with the vertical grooves (122), and the female driving sleeve (125) is arranged at the bottom of the hollow rotary grouting device (121).
  3. 3. The pile driving machine for stiff composite piles by using pile casing drill pipes for synchronous pile planting according to claim 2, wherein the guiding mechanism comprises a stepping motor (131), a reduction gearbox (132), a rotating shaft (133), rotating plates (134), guiding wheels (135) and a shaft sleeve (136), the stepping motor (131) is installed at the top of the pressurizing traction guide rail (2), an output shaft of the stepping motor (131) is connected with an input end of the reduction gearbox (132), the rotating shaft (133) is rotatably connected to the reduction gearbox (132), the lower end of the rotating shaft (133) is rotatably connected with the top of the pressurizing traction guide rail (2), the upper end of the rotating shaft (133) is connected with the rotating plates (134), the guiding wheels (135) for guiding the steel wire ropes (9) are rotatably connected to the left side and the right side of the rotating plates (134), the steel wire ropes (9) bypass the guiding wheels (135), the shaft sleeve (136) for supporting the rotating shaft (133) is connected to the top of the reduction gearbox (132), and the rotating shaft (133) is located in the shaft sleeve (136), and the rotating shaft (133) is rotatably connected to the shaft sleeve (136).
  4. 4. The pile-driving composite pile construction machine for synchronously planting piles by using pile casing drill pipes according to claim 3, further comprising a bottom expanding mechanism, wherein the bottom expanding mechanism comprises a bottom expanding drill bit (141) and limiting blocks (142), the bottom expanding drill bit (141) is hinged to the lower portion of the steel pile casing drill pipe (4) at equal intervals in the circumferential direction, and the limiting blocks (142) used for limiting the bottom expanding drill bit (141) are connected to the lower portion of the steel pile casing drill pipe (4) at equal intervals in the circumferential direction.
  5. 5. The pile-constructing machine for stiff composite piles by synchronously planting piles with pile casing drill pipes according to claim 4, further comprising a stirring cutter (15), wherein the stirring cutter (15) is connected to the lower part of the steel pile casing drill pipe (4), and the stirring cutter (15) is positioned above the bottom expanding drill bit (141).
  6. 6. The pile construction machine for stiff composite piles by using the pile casing drill pipe for synchronous pile planting according to claim 1, further comprising a conical plate (16), wherein the conical plate (16) is connected to the top of the power head (3).
  7. 7. The construction process of the stiff composite pile for synchronously planting piles by using pile casing drill pipes as claimed in claim 5, comprising the following steps: S1, a worker lifts up a steel casing drill rod (4) from bottom to top in a lifting manner, a male driving key at the upper end of the steel casing drill rod (4) is inserted into a female driving sleeve (125) from bottom to top, then a hollow rotary slurry sprayer (121) is connected with a joint (124), and then the hollow rotary slurry sprayer (121) is connected with slurry spraying equipment; s2, moving the whole equipment to a construction site through a crawler (1), controlling an output shaft of a servo motor (5) to rotate, and adjusting an opening and closing drilling plate (7) to a closed state; S3, starting a stepping motor (131) to drive a steel wire rope (9) to rotate, moving the steel wire rope (9) away from the position right above a steel pile casing drill rod (4), fixing a precast concrete pile (10) on the steel wire rope (9), starting the stepping motor (131) again to drive the steel wire rope (9) to rotate reversely, rotating the precast concrete pile (10) right above the steel pile casing drill rod (4), controlling a winch (8) to pay out the steel wire rope (9), enabling the precast concrete pile (10) to move downwards into the steel pile casing drill rod (4) under the action of self gravity and contact with an opening and closing drill plate (7), clamping the precast concrete pile (10) through a hydraulic top clamp (5), and disassembling the steel wire rope (9) and the precast concrete pile (10); S4, controlling the power head (3) to rotate positively to drive the steel casing drill rod (4) and the opening and closing drill plate (7) to rotate positively, and simultaneously controlling the pressurizing traction guide rail (2) to drive the opening and closing drill plate (7) to move downwards in a pressurizing manner, and drilling holes on the ground by the opening and closing drill plate (7); S5, controlling a slurry spraying device to inject the mortar into the hollow rotary slurry sprayer (121), spraying the mortar from a slurry spraying port (123) through a vertical groove (122) to spray the mortar into a hole to form a cement soil external pile, fully stirring the mortar and the soil by a stirring blade (15), and enabling a precast concrete pile (10) to move downwards along with a steel pile casing drill rod (4) so as to enable the steel pile casing drill rod (4) and the precast concrete pile (10) to reach a set depth synchronously; S6, after the steel pile casing drill rod (4) and the precast concrete pile (10) reach a set depth, the hydraulic top clamp (5) loosens the precast concrete pile (10), the precast concrete pile (10) pushes the opening and closing drilling plate (7), the opening and closing drilling plate (7) rotates and opens in a direction away from each other, the steel pile casing drill rod (4) and the opening and closing drilling plate (7) are lifted upwards for 20 cm, the precast concrete pile (10) stays in the hole, the hydraulic top clamp (5) clamps the precast concrete pile (10) again, then the power head (3) presses down the precast concrete pile (10), and then the hydraulic top clamp (5) loosens the precast concrete pile (10); S7, controlling an output shaft of a driving motor (112) to reversely rotate to drive a steel casing drill rod (4) and an opening and closing drill plate (7) to reversely rotate, automatically opening a bottom expanding drill bit (141) to expand the bottom, continuously spraying slurry in the process, and simultaneously controlling a pressurizing traction guide rail (2) to drive the steel casing drill rod (4) and the opening and closing drill plate (7) to slowly move upwards to push the steel casing drill rod (4) out and rotationally stir soil and mortar; And S8, after the bottom expanding requirement is met, the steel casing drill rod (4) continues to rotate positively, the bottom expanding drill bit (141) can be automatically closed, the steel casing drill rod (4) and the opening and closing drill plate (7) continue to move upwards slowly, the steel casing drill rod (4) is pushed out, the soil and the mortar are rotationally stirred, in the process, the grouting is continuously carried out, after the steel casing drill rod (4) and the opening and closing drill plate (7) move from the hole, the pressurizing traction guide rail (2) stops running, the steel casing drill rod (4) and the opening and closing drill plate (7) stop rotating, and the grouting equipment stops grouting, so that the construction is completed.

Description

Stiff composite pile construction process and pile construction machine for synchronously planting piles by pile casing drill rods Technical Field The invention relates to the technical field of stiff composite pile construction, in particular to a stiff composite pile construction process and a pile construction machine for synchronously planting piles by using pile casing drill pipes. Background The core of the construction of the stiff composite pile is how to implant the precast concrete pile into the cement soil outer pile in a quality manner, and after the stirring of one cement soil outer pile is finished, one precast concrete pile is immediately implanted, so that the cooperative stress of the inner pile and the outer pile is ensured, and a mature technical path is developed through engineering practice and innovation in recent years. In the actual construction process, the drilling stirring and pile pressing are completed by more than two sets of construction equipment, the construction efficiency is low, the construction cost is high, shrinkage holes and collapse holes are easy to occur in a soft sand layer, a flowing plastic mud layer soil layer and a thick pebble layer, the cement slurry stirred by guniting is difficult to form an effective hole wall, and the precast concrete pile is easy to be not centered and eccentric when being implanted. Disclosure of Invention In view of the above, the invention provides a stiff composite pile construction process and a pile construction machine for synchronously planting piles by using pile casing drill pipes, which can overcome the defects that drilling stirring and pile pressing are completed by more than two sets of construction equipment, the construction efficiency is low, the manufacturing cost is high, shrinkage and collapse of a soft sand layer, a plastic-flowing mud layer soil layer and a thick pebble layer are easy to occur, and precast concrete piles are easy to be not centered and eccentric. The utility model provides a with pile casing drilling rod synchronous pile planting's strength nature composite pile construction technology and construction stake machine, including the tracked vehicle, pressurization traction guide rail and unit head, install the pressurization traction guide rail on the tracked vehicle, install the unit head on the slider of pressurization traction guide rail, still including steel pile casing drilling rod, hydraulic ram clamp, the axle that opens and shuts, open and shut the drilling plate, the hoist engine, wire rope, precast concrete stake, spraying mechanism and guiding mechanism, the hydraulic ram clamp is installed to unit head outside circumference even interval, steel pile casing drilling rod lower part circumference even interval installs the axle that opens and shuts, all be connected with the drilling plate that opens and shuts on the axle that opens and shuts, adjacent two drilling plates that open and shut contact each other, constitute a complete drill bit that opens and shuts, install the machine on the pressurization traction guide rail, wind wire rope on the hoist engine, be connected with precast concrete stake on the wire rope, precast concrete stake is located steel pile casing drilling rod, open and shut the drilling plate is in subaerial, the spraying mechanism is used for spouting the hole with the mortar, form the outer pile of cement, guiding mechanism is used for leading wire rope. The grouting mechanism comprises a hollow rotary grouting device, a connector and a female driving sleeve, the hollow rotary grouting device is arranged at the bottom of the power head, vertical grooves are formed in steel casing drill pipes, grouting openings are formed in the open-close drilling plates, the vertical grooves correspond to the grouting openings, the connector is connected to the steel casing drill pipes, the connector is communicated with the vertical grooves, and the female driving sleeve is arranged at the bottom of the hollow rotary grouting device. Further, guiding mechanism is including step motor, the reducing gear box, the pivot, the rotor plate, leading wheel and axle sleeve, step motor is installed at pressurization traction guide rail top, step motor's output shaft is connected with the input of reducing gear box, rotate on the reducing gear box and be connected with the pivot, pivot lower extreme and pressurization traction guide rail top rotate and be connected, the pivot upper end is connected with the rotor plate, the rotor plate left and right sides all rotates and is connected with the leading wheel that is used for leading wire rope, wire rope walks around the leading wheel, the reducing gear box top is connected with the axle sleeve that is used for supporting the pivot, the pivot is located the axle sleeve, and pivot and axle sleeve rotate and be connected. The device is characterized by further comprising a bottom expanding mechanism, wherein the bottom expanding mechanism compri