Title:
GROUND ANCHORING METHOD WITH UNIFORM ADHESIVE STRESS
Document Type and Number:
WIPO Patent Application WO/2024/043209
Kind Code:
A1
Abstract:
[Problem] To provide a ground anchoring method in which advancement of progressive failure due concentrated stress that occurs in an anchoring part of conventional ground anchors does not occur, in which stress that is substantially uniform acts on the entirety of an anchoring section, and which improves durability. [Solution] A hole 5 with a hole diameter of 40-400 mm is drilled from a ground surface 1 to an immobile layer 4 in a deep part of the ground. A tendon 6 is inserted into the hole 5 after drilling. A tendon fixing part 7 is formed by injecting cement for the tendon fixing part 7 into the hole in the immobile layer 4 around the tip end part 6a of the tendon 6. After formation of the tendon fixing part 7, a temporary pressure receiving plate 18 is installed to the ground surface 1. In a state where the tendon 6 is tensioned with the temporary pressure receiving plate 18 as a counterforce, a tendon tension anchoring part 8 is formed by injecting a rapid hardening cement for the tendon tension anchoring part 8 into the hole 5, from the immobile layer 4 to a moving layer 3 of the shallow part of the ground, and around an intermediate part 6c of the tendon 6 which excludes the tip end part 6a, from the ground surface 1. After formation of the tendon tension anchoring part 8, the temporary pressure receiving plate 18 is removed.
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Inventors:
MITA KAZUROU (JP)
Application Number:
PCT/JP2023/030004
Publication Date:
February 29, 2024
Filing Date:
August 21, 2023
Export Citation:
Assignee:
TYOJUHOKYODO KK (JP)
International Classes:
E02D5/80
Foreign References:
| JP2013167077A | 2013-08-29 | |||
| JP2006177095A | 2006-07-06 | |||
| JPH10338936A | 1998-12-22 | |||
| JP2015101880A | 2015-06-04 | |||
| JP2007146531A | 2007-06-14 |
Attorney, Agent or Firm:
HIGASHI Kazuhiro (JP)
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