KR960029555A - Auger drill for spiral grooves, method of constructing spiral grooves on the circumferential wall of underground hole with this auger drill, and underground pile reinforced with bearing capacity by spiral grooves - Google Patents

Auger drill for spiral grooves, method of constructing spiral grooves on the circumferential wall of underground hole with this auger drill, and underground pile reinforced with bearing capacity by spiral grooves Download PDF

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Publication number
KR960029555A
KR960029555A KR1019950001008A KR19950001008A KR960029555A KR 960029555 A KR960029555 A KR 960029555A KR 1019950001008 A KR1019950001008 A KR 1019950001008A KR 19950001008 A KR19950001008 A KR 19950001008A KR 960029555 A KR960029555 A KR 960029555A
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KR
South Korea
Prior art keywords
tip
groove
auger drill
underground hole
underground
Prior art date
Application number
KR1019950001008A
Other languages
Korean (ko)
Other versions
KR0144777B1 (en
Inventor
유정식
Original Assignee
박정구
주식회사 금호건설
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Application filed by 박정구, 주식회사 금호건설 filed Critical 박정구
Priority to KR1019950001008A priority Critical patent/KR0144777B1/en
Priority to JP7149714A priority patent/JP2709382B2/en
Publication of KR960029555A publication Critical patent/KR960029555A/en
Application granted granted Critical
Publication of KR0144777B1 publication Critical patent/KR0144777B1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B3/00—Rotary drilling
    • E21B3/02—Surface drives for rotary drilling
    • 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
    • E02D5/02—Sheet piles or sheet pile bulkheads
    • E02D5/03—Prefabricated parts, e.g. composite sheet piles
    • E02D5/10—Prefabricated parts, e.g. composite sheet piles made of concrete or reinforced concrete
    • E02D5/105—Prefabricated parts, e.g. composite sheet piles made of concrete or reinforced concrete of prestressed concrete
    • 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
    • E02D5/50—Piles comprising both precast concrete portions and concrete portions cast in situ
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/006—Drill bits providing a cutting edge which is self-renewable during drilling
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00—Production methods
    • E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00—Production methods
    • E02D2250/0038—Production methods using an auger, i.e. continuous flight type

Abstract

[목적][purpose]

본 발명은 매입말뚝의 지지력중에서 주면마찰력을 증대시키기 위하여 지중 홀의 주벽에 연속적으로 다짐이된 나선홈을 형성되게 함으로써 말뚝의 주면 마찰력을 증가시킴과 동시에 경제적 시공을 가능케하고, 오거드릴의 회전시에 지중 홀의 주벽을 밀어서 다지는 방법으로 나선홈을 낼 수 있는 오거드릴과, 이 오거드릴로 나선홈을 시공하는 방법 및 나선홈이 주어진 지중 홀로 부터 주면지지력이 향상된 지중말뚝을 제공하기 위한 것이다.The present invention increases the frictional force of the main surface of the pile by simultaneously forming a spiral groove in the circumferential wall of the underground hole in order to increase the main surface friction in the bearing force of the embedded pile to enable economic construction and at the time of rotation of the auger drill It is to provide an auger drill that can make a spiral groove by pushing the main wall of the underground hole, and a method of constructing a spiral groove with the auger drill, and an underground pile having improved bearing capacity from the underground hole given the spiral groove.

[구성][Configuration]

지중 홀의 주벽(21)쪽을 바라보는 비트(3)의 외측면에 여굴폭 [b=(dh-ds)/2]와 동일 또는 이것에 버금가는 팁의 반경(rt)을 가진 반원구상의 홈팁(5)이 부착된 오거드릴로 지중 홀을 천공하는 과정에서는 상기 홈팁(5)에 의해 원심방향으로 주벽(21)을 자연스럽게 밀어내 다져주되 홈은 가급적 형성되지 않도록 하고 오거드릴(1)의 인발과정에서는 일정한 속도로인발하면서 오거드릴(1)의 회전에 의한 원심력과 진동으로 홈팁(5)의 회전 반경이 커지게 해 지중 홀의 주벽(21)에 소정의 피치를 갖는 비삭성식 나선홈(22)을 형성하도록 인발하는 것이다.Semi-circular groove tip with a radius of the tip (rt) equal to or equal to the excavation width [b = (dh-ds) / 2] on the outside of the bit 3 facing the circumferential wall 21 of the underground hole. In the process of drilling the underground hole with the attached auger (5), the groove wall (21) is naturally pushed and squeezed in the centrifugal direction by the groove tip (5) so that the groove is not formed as much as possible and the drawing of the auger drill (1) is carried out. In the process, while drawing at a constant speed, the turning radius of the groove tip 5 increases due to the centrifugal force and vibration caused by the rotation of the auger drill 1, and thus the non-cutting spiral groove 22 having a predetermined pitch on the circumferential wall 21 of the underground hole. To draw.

Description

나선홈내기용 오거드릴과, 이 오거드릴로 지중 홀의 주벽에 나선홈을 시공하는 방법 및 나선홈에 의해 지지력이 보강된 지중말뚝Auger drill for spiral grooves, method of constructing spiral grooves on the circumferential wall of underground hole with this auger drill, and underground pile reinforced with bearing capacity by spiral grooves

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본발명에 사용되는 오거드릴의 요부 정면도, 제2도는 일실시예에 의한 비트의 사시도, 제3도는 다른 실시예에 의한 비트의 사시도, 제4도는 본발명의 오거드릴로 천공한 지중 홀의 측면도, 제6도는 제4도의 A부 상세도, 제11도는 제 10도의 C부 상세도.1 is a front view of the main portion of the auger drill used in the present invention, 2 is a perspective view of the bit according to an embodiment, 3 is a perspective view of the bit according to another embodiment, 4 is a perspective view of the auger drill of the present invention Side view of the underground hole, FIG. 6 is a detailed view of portion A of FIG. 4, and FIG. 11 is a detailed view of portion C of FIG.

Claims (3)

PC말뚝을 삽입하기 위해 오거드릴(1)의 나선익(2)의 드릴직경(ds)에 의하여 지중홀의 천공직경(dh)의 지중홀을 천공(ds dh)하는 것에 있어서, 오거드릴(1)의 하단 나선익(2)의 선단부에 수개의 비트(3)를 일체로 형성하고, 하나의 비트(3)의 외측면부상에 여굴폭[b=(dh-ds)/2]와 거의 동일한 크기의 반경(rt)을 갖는 반구상의 홈팁(5)또는 홈팁 (5)과 보조팁(6)을 부착하며, 오거드릴(1)의 회전축의 회전과 함께 홀이 천공되는 작업과정에서는 상기 홈팁(5) 또는 홈팁(5)과 보조팁(6)에 의해 원심방향으로 주벽을 자연스럽게 밀어 다져주되 나선홈(22)이 거의 형성되지 않도록 하고, 회전축의 인발작업과정에서는 오거드릴(1)이 회전할때의 원심력과 진동에 의해 편심각(θ)을 갖고 인발되면서 홈팁(5) 또는홈팁(5)과 보조팁 (6)에 의해 홀의 주벽(21)에 비삭성식의 나선홈(22)이 형성되는 것을 특징으로 하는 오거드릴.In the drilling of the underground hole (ds dh) of the drilling diameter (dh) of the underground hole by the drill diameter (ds) of the spiral blade (2) of the auger drill (1) to insert the PC pile, the auger drill (1) Several bits 3 are integrally formed at the distal end of the lower spiral blade 2 of X, and approximately the same as the excitation width [b = (dh-ds) / 2] on the outer surface of one bit 3. A hemispherical groove tip 5 or a groove tip 5 and an auxiliary tip 6 having a radius of rt are attached, and the groove tip 5 in the process of drilling the hole with the rotation of the rotation axis of the auger drill 1. Or by pushing the circumferential wall in the centrifugal direction naturally by the groove tip 5 and the auxiliary tip 6 so that the spiral groove 22 is hardly formed, and when the auger drill 1 rotates in the drawing process of the rotating shaft. The non-cutting spiral groove 22 is formed on the circumferential wall 21 of the hole by the groove tip 5 or the groove tip 5 and the auxiliary tip 6 while drawing with an eccentric angle θ by centrifugal force and vibration. Auger drill, characterized in that. 지중 홀의 주벽(21)쪽을 바라보는 비트(3)의 외측면에 여굴폭 [b = (dh-ds)/2=b]와 동일 또는 이것에 버금가는 팁의 반경(rt)을 가진 반원구상의 홈팁(5)이 부착된 오거드릴로 지중 홀을 천공하는 과정에서는 상기 홈팁(5)에 의해 원심방향으로 주벽(21)을 자연스럽게 밀어내 다져주되 홈은 가급적 형성되지 않도록 하고 오거드릴(1) 인발과정에서는일정한 속도로 인발하면서 오거드릴(1)의 회전에 의한 원심력과 진동으로 홈팁(5)의 횐전반경이 커지게 해 지중 홀의 주벽(21)에 소정의 피치를 갖는 비삭성식 나선홈(22)을 형성하도록 인발하는 것을 특징으로 하는 지중 홀에 다짐 나선홈을시공 하는 방법.Semicircular sphere with tip radius equal to or equal to the excavation width [b = (dh-ds) / 2 = b] on the outer side of the bit 3 facing the circumferential wall 21 of the underground hole. In the process of drilling the underground hole with the auger drill attached to the groove tip (5) of the main tip 21 by the groove tip 5 in the centrifugal direction naturally pushed to squeeze, but not forming the groove as possible, the auger drill (1) In the drawing process, the radial radius of the groove tip 5 is increased by the centrifugal force and vibration caused by the rotation of the auger drill 1 while drawing at a constant speed, so that the non-cutting spiral groove 22 having a predetermined pitch in the circumferential wall 21 of the underground hole 22 Method for constructing a compacted spiral groove in the underground hole, characterized in that the drawing to form a). 지중 홀의 주벽(21)쪽을 바라보는 비트(3)의 외측면에 여굴폭 [b = (dh-ds)/2=b]과 동일 또는 이것에 버금가는 팁의 반경(rt) 을 가진 반원구상의 홈팁(5)이 부착된 오거드릴로 지중 홀을 천공한 후 인발과정에서 오거드릴(1)의회전에 의한 원심력과 진동으로 홈팁(5)의 회전반경이 커지게 해 지중 홀의 주벽(21)에 소정의 피치를 갖는 비삭성식 나선홈(22)을 형성하고 여기에 PC 말뚝을 삽입한 다음 지중 홀과 말뚝 사이의 공간에 시멘트 페이스트를 타설, 양생시켜 말뚝의 주면에 상기 나선홈(22)에 대응하는 나선형 시멘트 콘크리트가 일체로 형성되는 것을 특징으로 하는 지중말뚝.Semicircular sphere with tip radius equal to or equal to the excitation width [b = (dh-ds) / 2 = b] on the outer side of the bit 3 facing the circumferential wall 21 of the underground hole. After drilling the underground hole with the auger drill to which the home tip 5 is attached, the radius of rotation of the home tip 5 is increased by the centrifugal force and vibration caused by the rotation of the auger drill 1 in the drawing process. A non-cutting spiral groove 22 having a predetermined pitch is formed and a PC pile is inserted therein, and then cement paste is poured into the space between the underground hole and the pile and cured to correspond to the spiral groove 22 on the main surface of the pile. Underground pile characterized in that the spiral cement concrete is formed integrally. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950001008A 1995-01-21 1995-01-21 Auger drill machine and spiral groove manufacturing method of underground hole and spiral foundation pile KR0144777B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1019950001008A KR0144777B1 (en) 1995-01-21 1995-01-21 Auger drill machine and spiral groove manufacturing method of underground hole and spiral foundation pile
JP7149714A JP2709382B2 (en) 1995-01-21 1995-05-25 An auger drill for drilling a spiral groove and a method of constructing a spiral groove on the peripheral wall of an underground hole with this auger drill.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950001008A KR0144777B1 (en) 1995-01-21 1995-01-21 Auger drill machine and spiral groove manufacturing method of underground hole and spiral foundation pile

Publications (2)

Publication Number Publication Date
KR960029555A true KR960029555A (en) 1996-08-17
KR0144777B1 KR0144777B1 (en) 1998-09-15

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KR1019950001008A KR0144777B1 (en) 1995-01-21 1995-01-21 Auger drill machine and spiral groove manufacturing method of underground hole and spiral foundation pile

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JP (1) JP2709382B2 (en)
KR (1) KR0144777B1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4555702B2 (en) * 2005-02-21 2010-10-06 富士通株式会社 Distortion compensation device
KR101021562B1 (en) * 2007-11-28 2011-03-16 정명준 a piercing auger and mixing method for soft ground at use of it's
JP5443928B2 (en) * 2009-09-30 2014-03-19 株式会社大林組 Method for constructing soil cement structure, soil cement structure
KR101524247B1 (en) * 2014-04-22 2015-06-02 주식회사 서영엔지니어링 Compaction equipment for base mound of ruble stone for constructing harbor structure, and method for the same
CN111441342A (en) * 2020-03-25 2020-07-24 中国建筑第五工程局有限公司 Drilling machine based on crossed dense-tooth drill bits and construction method of cast-in-place pile of drilling machine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5985028A (en) * 1982-11-05 1984-05-16 Yasuyuki Yoshida Steel pipe pile and laying work thereof
JPS6347416A (en) * 1986-12-17 1988-02-29 Yasuyuki Yoshida Steel tubular pile and its embedding work

Also Published As

Publication number Publication date
JP2709382B2 (en) 1998-02-04
JPH08199959A (en) 1996-08-06
KR0144777B1 (en) 1998-09-15

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