KR870004194A - Foundation piles with lumps in the form of humps and methods - Google Patents

Foundation piles with lumps in the form of humps and methods Download PDF

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Publication number
KR870004194A
KR870004194A KR1019850007461A KR850007461A KR870004194A KR 870004194 A KR870004194 A KR 870004194A KR 1019850007461 A KR1019850007461 A KR 1019850007461A KR 850007461 A KR850007461 A KR 850007461A KR 870004194 A KR870004194 A KR 870004194A
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KR
South Korea
Prior art keywords
pile
cavity
shape
foundation
rotating shaft
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KR1019850007461A
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Korean (ko)
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KR900005913B1 (en
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주웨이 즈세 린
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주웨이 즈세 린
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Priority to KR1019850007461A priority Critical patent/KR900005913B1/en
Publication of KR870004194A publication Critical patent/KR870004194A/en
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Publication of KR900005913B1 publication Critical patent/KR900005913B1/en

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Classifications

    • 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
    • E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
    • E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
    • E02D5/44—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds with enlarged footing or enlargements at the bottom of the pile

Abstract

내용 없음No content

Description

하단을 혹 형상으로 부풀어지게 한 기초말뚝과 그 공법Foundation piles with lumps in the shape of the bottom and their method

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

제1도는 기초말뚝을 박아 넣은 상태를 나타낸 단면도.1 is a cross-sectional view showing a state of driving the foundation pile.

제2도는 심봉(芯棒)으로 파일헤드(pile head)를 쳐서 내린 상태를 나타낸 단면도.2 is a cross-sectional view showing a state of hitting the pile head down with a mandrel.

제3도-제5도는 말뚝끝과 파일헤드 사이를 도려내는 장치로서 공동(空同)으로 절삭시키는 과정을 나타낸 단면도.3 to 5 are cross-sectional views showing a process of cutting into a cavity as a device for cutting out between a pile tip and a pile head.

*도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

P:말뚝본체, H:가압파이프, 10:가운데가 빈 원추형상의 파일헤드P: pile body, H: pressurized pipe, 10: hollow conical pile head

11:심봉 12:회전체 13:도려내는 부재11: mandrel 12: rotating body 13: absence

14:둘레벽 15:모래자갈 16:공동14: Surrounding wall 15: Sand gravel 16: Joint

17:초음파장치 18:골조 19:관(管) 출구17: ultrasonic device 18: skeleton 19: pipe outlet

20:콘크리이트부 21:거친땅 22:모르타르20: Concrete part 21: Rough ground 22: Mortar

Claims (7)

코어가 가운데가 빈 P.C 말뚝을 박아넣은 후 그 가운데가 빈 부분을 통한 전술한 말뚝 반지름 치수보다도 길고 각각의 일단부(一端部)가 회전축에 연계 부착된 강인한 가요성코오드군으로 된 도려내는 부재로, 회전 원심력에 따라 말뚝 하단 주변의 흙을 절삭확장하여 형성된 전술한 코오드의 길이를 반지름으로 하는 원형 공동에 콘크리이트 모르타르를 충전하여 하단을 혹형상으로 부풀어지게 한 기초말뚝.The core is driven by a hollow PC pile, which is longer than the above-described pile radius dimension through the hollow portion, and each end is formed of a strong flexible cord group with one end connected to the rotating shaft. The foundation pile is filled with concrete mortar in a circular cavity having a radial length of the above-described cord formed by cutting and extending soil around the bottom of the pile according to the rotational centrifugal force to inflate the bottom into a hump shape. 제1항에 있어서, 전술한 말뚝하단의 혹은 원추형상이든가 또는 벨 형상으로 형성하여 된 기초말뚝.The foundation pile according to claim 1, wherein the foundation pile is formed in a bell shape or at the bottom of the pile. 제1항에 있어서, 전술한 공동에는 사전에 우산 형상으로 편 철재 골조가 내설되어 철근 콘크리이트 구조로 한 것을 특징으로 하는 기초말뚝.2. The foundation pile according to claim 1, wherein the above-mentioned cavity is preliminarily constructed with a steel frame which is knitted in an umbrella shape to have a reinforced concrete structure. 코어가 가운데가 비고 하단에 착탈이 가능한 가운데가 빈 원추형 P.C 말뚝이 부착된 P.C 말뚝을 소정의 지반에 박아넣고, 심봉을 통해서 가운데가 빈 부분을 따라 파일헤드를 말뚝본체로부터 분리하여 대략 말뚝아래 2m 인 곳가지 쳐서 내리고, 이어서 말뚝의 가운데가 빈 코어에서 도려내는 장치를 삽입하여 그 회전축의 선단부에 따라서 다수의 강인한 가요성 코오드를 연계 부착한 도려내는 부재를 파일헤드 상부부근에서 회전축의 고속회전에 의하여 원심회전시켜서 그 둘레벽을 절삭, 파쇄하는 한편, 물을 주입하여 도려내는 작업을 보조하는 동시에 절삭된 흙을 수화졸 형태로 형성시켜서 이들을 빨 펌프로 말뚝밖으로 흡출하여서 졸화하지 않는 모래자갈을 아래쪽으로 침하시킴에 따라 말뚝 하단에 거의 원형의 공동을 형성하여 철근 또는 앵글을 조립시켜서 된 철재의 골조를 전술한 공동에 끼워넣고 확장가설한 다음 가암 파이프를 병용하면서 공동 가득하게 콘크리이트 모르타르를 충전하여 소정된 양생시간이 경과 된 다음 콘크리이트 모르타르가 응결하여 원형의 콘크리이트 혹으로 성형되었을때 전술한 가압파이프로 부터 토질 안정제를 말뚝 및 혹 주변의 거친땅으로 압력으로 주입하여 굳어지게하고 직후에 모르타르로 하단부에서 윗쪽으로 압력으로 주입하여 주변의 틈새를 메워서 안정된 지반으로 형성시키는 것을 특징으로 하는 하단을 혹형상으로 부풀어지게 한 기초말뚝의 공법.The core is hollowed out, and the PC pile with the conical PC pile, which is detachable at the bottom, is driven into the predetermined ground, and the pile head is separated from the pile body along the hollow part through the mandrel, approximately 2m below the pile. After cutting down, the center of the pile is cut out from the hollow core, and then the high-speed rotation of the rotating shaft near the upper part of the pile head is carried out by inserting a device in which a plurality of rigid flexible cords are connected and attached along the tip of the rotating shaft. Centrifugal rotation is used to cut and crush the circumferential wall, inject water to cut out, and at the same time, cut the soil into the form of a hydride sol. As it sinks, it forms an almost circular cavity at the bottom of the pile, The granulated steel frame is inserted into the above-mentioned cavity, expanded hypothesis is used, and the concrete mortar is condensed after the prescribed curing time has elapsed by filling the concrete mortar with the cavity filled together and filling the cavity. When it is molded in, the soil stabilizer is injected from the above-mentioned pressure pipe into the coarse ground around the pile and the hump to harden it, and immediately after it is injected into the mortar from the lower part by upward pressure, it fills the surrounding gap and forms a stable ground. Method of foundation piles inflated to the bottom of the hull shape characterized in that to make. 제4항에 있어서, 전술한 도려내는 장치의 회전축 하단부에 연계 부착된 도려내는 부재의 코오드는 와이어 로우프로 되고, 소정된 혹형상에 따라서 말뚝 반지름의 칫수보다 큰 각종의 길이로 하는 기초말뚝의 공법.5. The method according to claim 4, wherein the cord of the outgoing member linked to the lower end of the rotating shaft of the outgoing device described above is a wire rope, and has various lengths larger than the dimension of the pile radius according to a predetermined hump shape. . 제4항에 있어서, 전술한 철근 또는 앵글을 조립하여된 철재의 골조는 접어 구부리는 것이 자유롭게 우산 뼈대 형상으로 조립되고, 전술한 원형 공동에 삽입할 때에는 접은 상태로 하여 삽입후에는 본래의 우산 형상으로 펴서 넓힌 기초말뚝의 공법.5. The steel frame according to claim 4, wherein the steel frame made by assembling the aforementioned reinforcing bars or angles is freely folded and assembled into an umbrella skeleton shape, and when inserted into the above-mentioned circular cavity, it is in a folded state. Construction method of the foundation pile extended by the way. 제4항에 있어서, 전술한 도려내는 부재의 코오드 길이를 아래쪽에 내려갈수록 길게 되도록 적절히 조절함에 따라 원추형상 또는 벨형상의 공동으로 형성하여 된 기초말뚝의 공법.5. The method according to claim 4, wherein the cord length of the above-mentioned cutting-out member is appropriately adjusted so as to be lowered downward, so as to form a conical or bell-shaped cavity. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019850007461A 1985-10-08 1985-10-08 Base stake inflated in bump state at lower end there of and its construction KR900005913B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019850007461A KR900005913B1 (en) 1985-10-08 1985-10-08 Base stake inflated in bump state at lower end there of and its construction

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Application Number Priority Date Filing Date Title
KR1019850007461A KR900005913B1 (en) 1985-10-08 1985-10-08 Base stake inflated in bump state at lower end there of and its construction

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KR870004194A true KR870004194A (en) 1987-05-08
KR900005913B1 KR900005913B1 (en) 1990-08-16

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101899838B (en) * 2010-04-27 2012-02-01 河海大学 Bottom-grouting-enlarged small-diameter prestressed tubular pile composite foundation construction method

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