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KR-20260063839-A - File Lifting Rug

KR20260063839AKR 20260063839 AKR20260063839 AKR 20260063839AKR-20260063839-A

Abstract

The present invention relates to a pile lifting lug capable of performing the pile penetration process of foundation work very quickly, and more specifically, to a pile lifting lug that is coupled to the top of a pile and receives hammer strikes, which allows the pile penetration process to be performed very quickly and continuously by enabling light striking without dismantling the lifting coupling state between the equipment and the pile after the lifting lug is lifted by equipment and penetrated into a hole.

Inventors

  • 김병주
  • 최준호

Assignees

  • 주식회사 바른기초건설

Dates

Publication Date
20260507
Application Date
20241031

Claims (6)

  1. A striking plate (100) that is bolted to the top of a pile (10) and has a flat striking surface (110) formed at the edge to receive the striking force of a hammer (30); A lifting rod (200) that protrudes upward from the center of the striking plate (100), is inserted into a through hole (340) formed in a pile cap (300) that receives the striking force of the hammer (30) and transmits it to the striking surface (110), and has an upper lifting hole (220) formed at the top for lifting the pile (10) in a combined state of the pile (10) and the lifting lug before striking by the hammer (30); A pile lifting lug that receives a hammer strike while attached to a pile.
  2. In paragraph 1, The above-mentioned impact plate (100) further comprises a head receiving groove (120) formed as a concave groove at the edge of the impact plate (100), through which a connecting bolt (40) that connects the pile (10) and the impact plate (100) passes, and a head receiving groove (120) in which the head portion (41) of the connecting bolt (40) is seated. The upper surface of the head portion (41) of the coupling bolt (40) seated in the head receiving groove (120) is positioned lower than the striking surface (110) so as not to come into contact with the pile cap (300). A pile lifting lug that receives a hammer strike while attached to a pile.
  3. In paragraph 1, The diameter of the through hole (340) of the above-mentioned pile cap (300) is formed to be larger than the diameter of the lifting rod (200), so that the through hole (340) and the lifting rod (200) are spaced apart. A pile lifting lug that receives a hammer strike while attached to a pile.
  4. In paragraph 1, Further comprising: a coupling lifting member (210) formed below the upper lifting member (220) with a diameter smaller than that of the upper lifting member (220), into which a wire is inserted to combine a pile (10) horizontal to the ground and the striking plate (100). A pile lifting lug that receives a hammer strike while attached to a pile.
  5. In paragraph 4, In the process of inserting the pile (10) into the drilled hole, the wire is connected to the combined lifting member (210) before the upper lifting member (220). A pile lifting lug that receives a hammer strike while attached to a pile.
  6. In paragraph 1, With the casing (20) inserted into the ground, the top of the pile (10) that has been driven into the bore hole is located lower than the top of the casing (20). A pile lifting lug that receives a hammer strike while attached to a pile.

Description

File Lifting Rug that receives hammer strikes while attached to a pile The present invention relates to a pile lifting lug capable of performing the pile penetration process of foundation work very quickly, and more specifically, to a pile lifting lug that is coupled to the top of a pile and receives hammer strikes, which allows the pile penetration process to be performed very quickly and continuously by enabling light striking without dismantling the lifting coupling state between the equipment and the pile after the lifting lug is lifted by equipment and penetrated into a drilled hole. Generally, prior to constructing a building, foundation work is performed by driving steel pipes, concrete piles (PHC piles), or H-shaped piles vertically into the ground to prevent settlement. Known and commonly used methods for this foundation work include the direct driving method, in which piles are driven directly into the ground using a hammer, and the auger method, in which the ground is first drilled using a screw pipe and then piles are driven into the holes. However, it is impossible to construct piles using the driving method in sites with weathered ground conditions where gravel, jade, or boulders are buried or deposited, where core stones or dykes are distributed, or in surrounding environments where construction pollution such as noise and ground vibration is a concern. Under such conditions, piles must be constructed using the embedment method. Depending on the combination of pile construction equipment, drilling method, the use of casing, and the pile insertion and anchoring methods, the embedment method includes the intermediate excavation method, the pre-boring method, and the rotational method; most prefabricated piles are constructed using the pre-boring method. In order to carry out this construction method, a pile driver is used, and the pile driver is mounted on heavy equipment, such as an excavator or a crane. A drilling machine for driving piles comprises a leader supported vertically by a front bracket of a drilling machine vehicle and a pair of backstays, a screw auger and a casing auger that are raised and lowered on the leader, a screw coupled to the screw auger, and a casing coupled to the casing auger. In addition, as an example of a pile driver for driving piles, the publication disclosed in Korean Registered Utility Model Publication No. 20-0389661 (July 4, 2005) discloses a ram housing device of a pile driver in which a hammer is installed so as to be vertically movable on a leader installed on heavy equipment such as a crane or excavator. The hammer of this pile driver is installed to move up and down by means of a wire that is wound or unwound by a winding drum device (winch, not shown) provided at the top of a leader installed on heavy equipment such as a crane, and rises, then falls freely under its own weight to strike a pile placed below, thereby driving the pile into the ground. Typically, the drilling machine and the pile driver are provided as identical equipment. After drilling the ground using the casing and screw auger equipped on the single machine, the pile is lifted by a winch and wire and driven into the drilled hole, and then the pile is lightly driven with a hammer to complete the penetration and fixation of the pile for one spot. Then, the machine moves to the next spot and repeats the pile penetration process described above. To this end, a single machine is equipped with facilities for driving piles, such as a casing, screw auger, winch, and hammer. Meanwhile, multiple piles are stored lying on the ground at the foundation construction site, and after the drilling work is completed, a lug is attached to one end of the pile lying down to insert it into the drilled hole. After attaching a wire to the lug, the pile is lifted vertically using equipment and moved to the drilled hole, and then the lower end of the pile is inserted into the drilled hole and lowered to insert it. Subsequently, in order to drive the top of the pile into place, the worker must manually remove the lugs attached to the top of the pile before the driving operation, so the top of the pile inevitably protrudes higher than the ground, and if the casing is installed in the ground, the worker must be able to perform the lug removal operation by protruding higher than the top of the casing. This has the disadvantage of requiring the design length of the pile to be longer, which leads to increased costs, so a method to reduce this is needed. After driving the pile into the borehole with the equipment, the lugs must be removed before driving it with the equipment, so the equipment must wait during the lug removal process, which caused a problem of delaying the overall pile driving time. Therefore, improvements to the rug and work methods are necessary to resolve these shortcomings. FIG. 1 shows the state of performing light striking on a pile lifting lug that is receiving a hammer strike while coupled to t