CN213204101U

CN213204101U - Pile foundation mud jacking device

Info

Publication number: CN213204101U
Application number: CN202021313546.XU
Authority: CN
Inventors: 王输平
Original assignee: Tangshan Haigang Dihuan Geological Survey Co ltd
Current assignee: Tangshan Haigang Dihuan Geological Survey Co ltd
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2021-05-14
Anticipated expiration: 2030-07-07

Abstract

The utility model relates to the technical field of pile foundations, and discloses a pile foundation grouting device, which comprises a steel pipe sleeve, wherein a grouting column is arranged in the steel pipe sleeve, the surface of the lower end of the grouting column is fixedly connected with a helical blade, a grouting hole is formed in the center of the grouting column, a plurality of grout outlet holes are formed in the grouting column at the lower end of the grouting hole, a grouting plate is arranged on the grouting column above the helical blade, a cavity is formed in the grouting plate, a rotating block is arranged in the cavity, the center of the rotating block is fixedly connected with the grouting column, a plurality of slide holes communicated with the cavity are formed in the grouting plate, a clamping column is slidably connected in the slide holes, a gap generated by pulling out the steel pipe sleeve through high-pressure extrusion of concrete from the grout outlet holes is filled, the helical blade stirs and tamps the slurry in the rotating process, and the grouting plate blocks the slurry from overflowing, the mud is penetrated to the deep of the soil layer, and the soil layer and the cast-in-place pile body are tightly combined, so that the foundation is firmer and more reliable.

Description

Pile foundation mud jacking device

Technical Field

The utility model relates to a pile foundation technical field specifically is a pile foundation mud jacking device.

Background

The pouring type pile foundation is a pile which is formed by positioning, forming a hole and pouring concrete or reinforced concrete. The cast-in-place pile has the advantages of no vibration, no soil squeezing, low noise, suitability for dense urban building areas and the like during construction, and is widely applied to construction. According to different hole-forming processes, the cast-in-place piles can be divided into cast-in-place piles for dry operation hole forming, cast-in-place piles for mud retaining wall hole forming, cast-in-place piles for manual hole digging and the like.

The existing pouring type pile foundation utilizes a drilling machine to drill a pile hole, then a steel pipe sleeve is driven, concrete is poured in the steel pipe sleeve, then the steel pipe sleeve is pulled out through the machine, a steel bar is driven through mechanical equipment, the concrete is waited to be solidified, the pouring of the pile foundation is completed, the requirement on the fit clearance of the pile hole and the steel pipe sleeve is higher in the pouring mode, the steel pipe sleeve has certain thickness, the steel pipe sleeve is pulled out, the gap is automatically filled with the poured concrete, a small amount of concrete needs to be continuously poured, the concrete tamping effect is poor, the quality is influenced, the existing pouring of the concrete and the pulling out of the steel pipe sleeve are completed through different machines, the efficiency is low, and the cost is high.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a pile foundation mud jacking device possesses the tight reality of mud jacking, pours advantage such as efficient, has solved the problem that the background art provided.

(II) technical scheme

For the purpose that realizes that above-mentioned mud jacking is compacter, pour efficiently, the utility model provides a following technical scheme: the pile foundation grouting device comprises a steel pipe sleeve, a grouting column is arranged in the steel pipe sleeve, a helical blade is fixedly connected to the surface of the lower end of the grouting column, a grouting hole is formed in the center of the grouting column, a plurality of grout outlet holes are formed in the grouting column at the lower end of the grouting hole, a grouting plate is arranged on the grouting column above the helical blade, a cavity is formed in the grouting plate, a rotating block is arranged in the cavity, the center of the rotating block is fixedly connected to the grouting column, a plurality of sliding holes communicated with the cavity are formed in the grouting plate, a plurality of clamping columns are slidably connected in the sliding holes, a plurality of check blocks are fixedly connected to the clamping columns, a plurality of compression springs are sleeved on the clamping columns between the check blocks and the inner wall of the sliding holes, and a plurality of positioning counter bores are formed in the inner wall of the steel pipe sleeve corresponding to the positions of the clamping.

Preferably, the upper end of the grouting column is fixedly connected with a pipe joint.

Preferably, the shape of turning block is a plurality of arc pieces of ring week side fixedly connected with, and is a plurality of the card post is close to turning block one end and all sets up to the arc.

Preferably, the positioning counter bores are kidney-shaped holes, and fit gaps between the positioning counter bores and the clamping columns are large.

Preferably, the lower end of the grouting column is conical, and the conical surface is fixedly connected with drill teeth.

(III) advantageous effects

Compared with the prior art, the utility model discloses possess following beneficial effect:

1. this kind of pile foundation mud jacking device extracts the space that produces through extruding concrete mud from the grout outlet hole high pressure and fills up with the steel pipe sleeve, and helical blade stirs the tamping to mud at the rotation in-process, and the mud is overflowed to the mud-pressing board, makes mud be permeated to soil layer depths, enables soil layer and bored concrete pile body and closely combines together to it is firm more reliable to make the ground.

2. This kind of pile foundation mud jacking device, when rising through grout post anticlockwise rotation, the card post blocks with the location counter bore, drives the steel-pipe sleeve rotation and rises, and the steel-pipe sleeve that extracts that the rotation rises compares traditional perpendicular extraction light laborsaving, and does not need other machinery to extract, has saved plenty of time and equipment cost.

Drawings

Fig. 1 is a schematic structural view of a pile foundation grouting device of the present invention;

fig. 2 is a schematic view of the internal structure of a pile foundation grouting device of the present invention;

fig. 3 is a schematic structural view of a grouting plate in the pile foundation grouting device of the present invention;

fig. 4 is a schematic structural diagram at a in fig. 2.

In the figure: the device comprises a steel pipe sleeve 1, a grouting column 2, a helical blade 3, a grouting hole 4, a grout outlet 5, a grouting plate 6, a cavity 7, a rotating block 8, a sliding hole 9, a clamping column 10, a stop block 11, a compression spring 12, a positioning counter bore 13, a pipe joint 14 and a drilling tooth 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-4, a pile foundation grouting device includes a steel pipe sleeve 1, a grouting column 2 is arranged in the steel pipe sleeve 1, the lower end of the grouting column 2 is tapered, a tapered surface is fixedly connected with a drill tooth 15, the taper is convenient for the grouting column 2 to drill into the soil, so that the drilling is more labor-saving, the drill tooth 15 prevents the grouting column 2 from touching hard objects when drilling into the soil, the service life is prolonged, and the drilling is more labor-saving, a pipe joint 14 is fixedly connected to the upper end of the grouting column 2, the design is convenient for connecting a grouting pipeline and cleaning the pipeline through the pipe joint 14, the grouting in the grouting column 2 is convenient for cleaning the inside of the grouting column 2, the grout outlet 5 is prevented from being coagulated and blocked due to the drying of concrete slurry, a helical blade 3 is fixedly connected to the surface of the lower end of the grouting column 2, a grouting hole 4 is formed in the center of the grouting column 2, a plurality of grout outlet 5 are formed, the grouting column 2 above the helical blade 3 is provided with a grouting plate 6, the grouting plate 6 is internally provided with a cavity 7, the cavity 7 is internally provided with a rotating block 8, the rotating block 8 is in a shape that a plurality of arc-shaped blocks are fixedly connected with the periphery of a circular ring, one end of the plurality of clamping columns 10 close to the rotating block 8 is arranged in an arc shape, the clamping columns 10 are uniformly pushed to slide through the arc-shaped gradual change, so that the force required during pushing is smaller, the pushing is convenient, the clamping is prevented during sliding, the center of the rotating block 8 is fixedly connected to the grouting column 2, the grouting plate 6 is internally provided with a plurality of slide holes 9 communicated with the cavity 7, the plurality of slide holes 9 are internally and respectively and slidably connected with the clamping columns 10, the plurality of clamping columns 10 are respectively and fixedly connected with a check block 11, the clamping columns 10 between the check blocks 11 and the inner walls of the slide holes 9 are respectively sleeved with a compression spring 12, the inner wall of the steel pipe sleeve, a plurality of location counter bores 13 are waist type hole, and the fit clearance between location counter bore 13 and the card post 10 is big, and this kind of design through waist type hole design, increases the horizontal area of location counter bore 13, and location counter bore 13 is difficult for breaking away from with card post 10 simultaneously, and the fit clearance is convenient for greatly to block and finds location counter bore 13 position when post 10 rotates and rises.

The working principle is as follows: when the grouting device is used, firstly, a pile hole is drilled through a drilling machine, then a steel pipe sleeve is placed in the pile hole, the grouting column 2 is driven by the machine to rotate clockwise and simultaneously descends along the inner wall of the steel pipe sleeve 1, when the grouting column is fast to the bottom of the steel pipe sleeve 1, slurry is poured into the grouting hole 4 and is extruded from the slurry outlet 5 at high pressure, the slurry is poured into the steel pipe sleeve 1, the grouting column 2 continuously rotates and descends to drill into a small section of soil when contacting with the soil, then the machine is controlled to drive the grouting column 2 to rotate anticlockwise and ascend, the whole process of pouring is not stopped, the slurry outlet 5 is prevented from being blocked by the soil, the rotating block 8 is driven to rotate anticlockwise to extrude the clamping column 10 when the grouting column 2 rotates anticlockwise, a part of the clamping column 10 is extruded, the clamping column 10 is extruded into the positioning counter bore 13 when ascending to the position of the positioning counter bore 13, the rotating block 8 continuously rotates to the leftmost end, and the clamping column, drive the rotation of steel-pipe sleeve 1 and rise, rotatory ascending extraction steel-pipe sleeve 1 compares traditional perpendicular extraction more light laborsaving, simultaneously mud is extruded from 5 high pressures in grout outlet hole and is filled up with the space that produces with steel-pipe sleeve 1 extraction always, helical blade 3 stirs the tamp to mud at the rotation in-process, mud is blocked to mud-pressing board 6 and is overflowed, make mud permeate to soil layer depths, enable soil layer and bored concrete pile body and closely combine together, thereby make the ground more firm reliable, after steel-pipe sleeve 1 extracts completely, stop the poured concrete, accomplish the pouring of pile foundation.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A pile foundation grouting device comprises a steel pipe sleeve (1) and is characterized in that a grouting column (2) is arranged in the steel pipe sleeve (1), a helical blade (3) is fixedly connected to the surface of the lower end of the grouting column (2), a grouting hole (4) is formed in the center of the grouting column (2), a plurality of grout outlet holes (5) are formed in the grouting column (2) at the lower end of the grouting hole (4), a grouting plate (6) is arranged on the grouting column (2) above the helical blade (3), a cavity (7) is formed in the grouting plate (6), a rotating block (8) is arranged in the cavity (7), the center of the rotating block (8) is fixedly connected to the grouting column (2), a plurality of sliding holes (9) communicated with the cavity (7) are formed in the grouting plate (6), and a clamping column (10) is slidably connected in each sliding hole (9), a plurality of equal fixedly connected with dog (11) on calorie post (10), it is a plurality of all the cover is equipped with compression spring (12) on calorie post (10) between dog (11) and slide opening (9) inner wall, correspond card post (10) position on steel-pipe cover (1) inner wall and seted up a plurality of location counter bores (13).

2. The pile foundation grouting device according to claim 1, characterized in that a pipe joint (14) is fixedly connected to the upper end of the grouting pile (2).

3. The pile foundation grouting device according to claim 1, characterized in that the rotating block (8) is in the shape of a plurality of arc blocks fixedly connected to the periphery of a circular ring, and one ends of the clamping columns (10) close to the rotating block (8) are all arranged in an arc shape.

4. The pile foundation grouting device according to claim 1, characterized in that a plurality of the positioning counterbores (13) are kidney-shaped holes, and the fit clearance between the positioning counterbores (13) and the clamping columns (10) is large.

5. A pile foundation grouting device according to claim 1, characterised in that the lower end of the grouting pile (2) is provided with a conical shape, and the conical surface is fixedly connected with drilling teeth (15).