KR930000628B1 - Pile-driving method of foundation pile - Google Patents

Abstract

The method for driving a pile in a casing having the outer spriral ridge with a rotary-type piling machine, is composed of mounting tip bit section (2) at lower casing (8) for protecting pile body; attaching spriral ridge (10) having fillar supply inlet (11) and connecting tube (11a) to the outer surface of casing (8); assemblying the casing (8), the bit section (2) with tip fixing disc (12) using connecting bar (14); driving the casing (8) in assembled state and releasing the bar (14); pulling out the casing by reverse rotation and forcedly dispersing filler to spiral space (22) via the inlet (11).

Description

Penetration method of foundation foundation piles

1 is an exploded perspective view of the present invention.

2 is a cross-sectional view of the coupling state of FIG.

3 is an exploded cross-sectional view of the casing of the present invention.

4 is an exemplary embodiment.

5 is an exploded perspective view showing another embodiment of the present invention.

6 is a cross-sectional view of the assembled state of FIG.

7 is an exemplary view of the exemplary embodiment of FIG.

* Explanation of symbols for main parts of the drawings

1: pile body 1a: central hole

2: Tip bit part 3: Coupling protrusion

3a: inclined plane 4: coupling screw hole

5 conical protrusion 6 cutting stone piece

7: stone piece 8: casing

9: connecting piece 9a: connecting groove

10: spiral protrusion 11: filler supply hole

12: upper fixing plate 12a: center hole

13: rotating shaft coupling portion 14: connecting rod

14a, 14b: screw groove 15: washer

16: fixing nut 17: rotating shaft

18: coupling plate 18a: coupling protrusion

19: filler supply container 20: discharge hole

21: connection hose 2: spiral space

A: Filler

The present invention relates to a penetration method of concrete piles to be carried out in the foundation work of civil engineering or building construction.

Conventional foundation piles are divided into concrete construction methods and excavation of concrete after placing the ground into concrete concrete pile construction method, and the type-type construction method to force the ready-made concrete piles into the ground and spiral grooves on the outer surface of piles. It can be seen that the rotary penetration method is used to form and connect the rotary injector to rotate the pile. The concrete concrete construction method is inconvenient for the cumbersome work and the long construction period, and the pile itself is solidified in the ground. There was a defect that can not be observed and the type method is not only limited by the environment and location of the surrounding area due to the high noise and vibration during the work and severe damage of the pile. Rotation penetration method is inserted into the ground as the pile body is rotated Since it is less noise and vibration, it is joined to the construction of cigars, but in the process of intrusion, the outer peripheral surface of the pile causes friction with the ground, which damages the pile and damages it if it is severe, resulting in limited ground conditions and pile depth. there was.

The present invention has been developed to correct the above-mentioned drawbacks, the input noise is low, the vibration is small, the infiltrating piles are securely intruded so as not to be damaged in the intrusion process, after which the piles are securely fixed so that they can fulfill their duties. The present invention is described in more detail based on the drawings to develop a rotational penetration method so that the penetration operation can be faster.

In the present invention, the pile body (1) and the casing (8) and the tip bit portion (2) that can put the pile body into the set into the ground in the state in which the pile body is protected, and after the complete penetration reverse the rotating cylinder Rotating by pulling up the filling cylinder (A), such as concrete mortar in the spiral space 22 of the pile while the rotary cylinder is pulled out, the tip bit portion (2) has a coupling screw hole (4) in the center Several engaging projections 3 are projected on the outer circumference, and each engaging projection 3 is formed with an inclined surface 3a in the rotational direction, and a conical projection 5 and a cutting stone piece 6 are attached to the bottom. The casing 8 is a cylindrical shape having a pile head part to protect the pile into a predetermined length, and is formed to be disassembled and assembled by symmetrically forming the connecting piece 9 and the connecting groove 9a at the connecting part. On the outside is a filler supply hole (11) inside The formed spiral protrusion 10 is formed to be connected from the upper end to the lower end, so as to protrude the coupling pipe 11a to the upper filler supply part, and to contact the lower discharge hole with the distal end bit piece 7 to insert the casing and the line into the pile. The end bead portion and the upper casing 12 can be assembled into the connecting rod 14 through the pile center hole 12a, and the rotary shaft 17 of the injector is coupled to the coupling portion 18a with the upper fixing plate 12. The filler supply tube 19 is formed to connect the connection hose-21 between the discharge hole 20 and the filler supply hole inlet of the spiral protrusion 10, and the rotary shaft 17 on the upper surface of the fixed disk 12. The coupling 13 is formed and the piles stored in the casing 8 are inserted into the ground by rotating the casing 8, and then, through the filler supply hole 11 formed in the spiral protrusion of the casing, only the casing 8 is rotated and extracted. Filling the spiral space formed by the casing by forcibly injecting filler The method allows for a sikilsu input force.

As described above, the present invention combines the casing 8 having the pile 1 of the tip bit part 2 to cover the upper fixing disc 12 to use the connecting rod 14 to make the bite bit part and the casing and the fixed disc. After assembling, connect the upper coupling part 13 to the lower coupling protrusion 18a of the rotary shaft 17 of the penetration device and pressurize and rotate it in the penetration direction so that the upper cutting part 13 of the bottom bit part 2 6) and the conical protrusions 5 are cut off the surface and the entry force is generated by the spiral protrusion 10 so that the casing is introduced into the ground, the pile (1) stored inside the casing (8) is the ground layer Since it is not in direct contact with the casing (8) can be infiltrated without being subjected to the ground resistance in the penetration process, when the penetration is completed, loosen the fixing nut 16 of the uppermost fixed disk 12 Slightly loosen the connecting rod (14) to separate it from the tip bit (2). When the rotating shaft 17 is rotated in reverse, the casing 8 is rotated in reverse to be separated from the tip bead portion 2 and then pulled out to the outside, and the pile 1 remains on the excavator. Spiral space 22 is formed to operate a separate machine to open the discharge hole 20 of the filler supply container 19 to inject the filler (A) contained in the supply cylinder through the supply hole (11) Filler is filled into the spiral space (cavity) 22 formed on the outer periphery and the pile is wrapped to be able to deeply penetrate and increase the bearing capacity in the penetrated state.

In this way, it is possible to bury the pile in a safe manner without damaging the pile in the process of injecting the pile, and faster construction is possible by the casing (8) and the tip bit portion (2) with the spiral groove, There is an advantage to considerably reduce the cost, and the casing (8) is composed of disassembled and assembled, so that it is easy to transport and store and can be used again, which is economical and deep pile construction is not affected by the condition of the ground. It has the advantage that it can be usefully used in civil engineering or building construction. When the depth of pile is not deep, the casing is integrated and the rotating shaft is rotated directly from the upper casing to the center of the excavator (figure 5). Because it can be implemented, the application category has the advantage of obtaining a wide range of effective construction methods.

Claims (3)

The tip bit portion 2 is installed at the bottom of the casing 8 to protect the pile body, and the spiral protrusion 10 having the filler supply hole 11 is attached to the outer surface of the casing 8 to supply the filler at the upper side. In the state of assembling the coupling pipe (11a) in the ball inlet, the casing (8) with the pile and the lower end bit portion (2) and the upper fixing plate (12) can be assembled with a connecting rod (14) Rotating the casing and then inserting the selected fillers through the filler supply hole of the spiral ridge to loosen the connecting rod 14 and extract the casing by rotating the casing reversely. Penetration method of foundation piles. The casing (8) in the above 1 is divided into a predetermined length and formed in an exploded assembly by symmetrically forming the connecting protrusion (9) and the connecting groove (9a) at the upper and lower ends of the connecting portion, and the tip bit portion (2) in the center On the bottom of the hole 4, a conical protrusion 5 and a cutting piece 7 are formed so that they can be disassembled and assembled into the upper fixing plate 12 and the connecting rod 14, and the filler supply cylinder 19 is provided on the rotating shaft 17. Penetration method of foundation pile for civil engineering of Clause 1, which is configured to be able to supply filler while extracting the casing by the device. Casing (8) and the tip bit portion (2) in the first terminology, the penetration method of the foundation pile for civil works of the first terminology, which allows the injector rotary shaft (17) to rotate directly.

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