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Patent Searching and Data


Title:
METHOD OF CONCRETING EXPANDED HOLE FOR A CONSTRUCTION PILE AND A TENSILE MEMBER
Document Type and Number:
WIPO Patent Application WO/2012/091247
Kind Code:
A1
Abstract:
The present invention relates to a method of concreting an end of a construction pile or tensile member, which includes: a first step of boring a vertical hole in the ground, and installing a tubular casing in the vertical hole to support a hollow wall if necessary; a second step of expanding an end of the vertical hole by using a hollow wall expanding tool so as to form an expanded hole of a pre-designed size, and supporting an upper ground of the expanded hole and a portion of the side wall thereof by using an upper ground support; and a third step of casting concrete within the expanded hole at the end of the vertical hole to form a concrete expansion part of a pre-designed size. Since the concrete expansion part is formed on the end of the construction pile or tensile member, the allowable bearing capacity of the construction pile or the pulling resistance of the tensile member can be significantly improved.

Inventors:
YIM SEONG DAE (KR)
Application Number:
KR2011/006622
Publication Date:
July 05, 2012
Filing Date:
September 07, 2011
Export Citation:
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Assignee:
SAMIL ENGINEERING & CONSTRUCTION CO LTD (KR)
YIM SEONG DAE (KR)
International Classes:
E02D5/48; E01D19/02; E02D5/54; E02D27/32
Foreign References:
KR100535941B12005-12-14
JPH073783A1995-01-06
KR100908566B12009-07-21
KR200234528Y1
Attorney, Agent or Firm:
BAEK, HONG-KI (KR)
백홍기 (KR)
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Claims: