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1. WO2009096723 - PILE WHEREOF HEAD IS EXPANDABLE AND WHICH HAS LEADING END EXPANSION PLATE INCLUDING CRITICAL INNER HOLE

Publication Number WO/2009/096723
Publication Date 06.08.2009
International Application No. PCT/KR2009/000444
International Filing Date 30.01.2009
IPC
E02D 5/44 2006.01
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
5Bulkheads, piles, or other structural elements specially adapted to foundation engineering
22Piles
34Concrete or concrete-like piles cast in position
38making by use of mould-pipes or other moulds
44with enlarged footing or enlargements at the bottom of the pile
CPC
E04H 12/2238
EFIXED CONSTRUCTIONS
04BUILDING
HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
12Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
22Sockets or holders for poles or posts
2238to be placed on the ground
Applicants
  • 이엑스티 주식회사 EXT CO., LTD. [KR]/[KR] (AllExceptUS)
  • 송기용 SONG, Ki-Yong [KR]/[KR] (UsOnly)
Inventors
  • 송기용 SONG, Ki-Yong
Agents
  • 특허법인 남촌 NAMCHON INTERNATIONAL PATENT AND LAW FIRM
Priority Data
10-2008-000972030.01.2008KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) PILE WHEREOF HEAD IS EXPANDABLE AND WHICH HAS LEADING END EXPANSION PLATE INCLUDING CRITICAL INNER HOLE
(FR) POTEAU À TÊTE EXTENSIBLE MUNI D'UNE PLAQUE D'EXTENSION D'EXTRÉMITÉ AVANT PRÉSENTANT UN TROU INTÉRIEUR CRITIQUE
(KO) 임계내공의 선단확장판을 구비한 헤드 확장형 파일
Abstract
(EN)
This invention relates to a pile whereof the head is expandable, wherein a leading end expansion plate having a larger size than the cross section of the pile leading end is installed at the leading end of the pile to improve the leading end bearing force of a hollow pile. More specifically, the invention relates to a pile whereof the head is expandable, wherein the inner hole has an optimal size which is smaller than the cavity of the pile and formed on the surface of a leading end expansion plate. The disclosed pile, whereof the head is expandable and which has a leading end expansion plate including a critical inner hole, is a pile where the leading end expansion plate has a larger size than the cross section diameter of the pile leading end to improve the leading end bearing force of a hollow pile. The leading end expansion plate is shaped like a circular band, wherein a hole smaller than a cavity of pile is formed. Especially, the width (tplate) of the leading end expansion plate is below the range of 40~70% as compared with the radius (Do) of leading end expansion plate.
(FR)
Cette invention concerne un poteau à tête extensible. Une plaque d'extension d'extrémité avant, dont la taille est plus grande que la section transversale de l'extrémité avant du poteau, est installée à l'extrémité avant d'un poteau creux pour en accroître la force d'appui. L’invention concerne plus particulièrement un poteau à tête extensible, dont le trou intérieur ménagé à la surface de la plaque d'extension d'extrémité avant présente une taille optimale plus petite que la cavité du poteau. Selon l'invention, la plaque d'extension d'extrémité avant à trou intérieur critique du poteau à tête extensible présente une taille plus grande que le diamètre de la section transversale de l'extrémité avant d'un poteau creux, ce qui accroît la force d'appui de l'extrémité avant du poteau. La plaque d'extension d'extrémité avant est taillée en forme de bande circulaire munie d'un trou plus petit qu'une cavité du poteau. En particulier, la largeur (tplate) de la plaque d'extension d'extrémité avant se situe au-dessous d'une plage de 40~70% par comparaison avec le rayon (Do) de la plaque d'extension d'extrémité avant.
(KO)
본 발명은 중공형 파일의 선단지지력을 향상시키기 위해 파일 선단부에 파일 선단면 크기 이상의 선단확장판이 장착되는 헤드 확장형 파일에 관한 것으로, 더욱 상세하게는 선단확장판의 면내에 파일의 중공보다 작은 크기의 내공을 형성시키면서 그 내공 크기를 최적화한 헤드 확장형 파일에 관한 것이다. 본 발명에 따른 임계내공의 선단확장판을 구비한 헤드 확장형 파일은 중공형 원형 파일의 선단지지력을 향상시키기 위해 파일 선단부에 파일 선단면 외경 이상 크기의 선단확장판이 장착되는 헤드 확장형 파일로서, 상기 선단확장판은 면내에 파일의 중공보다 작은 크기의 내공이 형성된 원형띠 모양을 가지되 선단확장판의 외반경(Do) 대비 선단확장판의 폭(tplate)을 40~70%이하로 확보하도록 마련된 것임을 특징으로 한다.
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