Title:
【発明の名称】場所打ちコンクリート杭の形成方法
Document Type and Number:
Japanese Patent JPH0774498
Kind Code:
B2
Abstract:
A cast-in-place concrete pile (10) essentially consists of a lower concrete layer (30) having fibers (21) intermixed therein and an upper concrete layer (50) having reinforcing elements (40). The lower portions of the reinforcing elements are embedded in the lower concrete layer to increase the bonding strength between the lower and upper concrete layers. The cast-in-place concrete pile of the present invention is constructed according to the following method. That is, an excavated hole (70) is firstly formed in the ground. The reinforcing elements (40) are placed at the upper side of the excavated hole, and then concrete (31) including the fibers (21) is cast into the excavated hole until the lower portions of the reinforcing elements (40) are embedded in thus cast concrete, so that the lower concrete layer (30) is formed. Continuously, concrete is cast onto the lower concrete layer in the excavated hole to form the upper concrete layer (50). Since thus constructed cast-in-place concrete pile is integrated in one-piece, it is expected that the concrete pile has high confidence and safety.
Inventors:
Mitsuhiro Kunifuji
Application Number:
JP6617392A
Publication Date:
August 09, 1995
Filing Date:
March 24, 1992
Export Citation:
Assignee:
Ask Research Institute, Inc.
International Classes:
E02D5/34; E02D5/48; (IPC1-7): E02D5/34
Domestic Patent References:
| JP2974226U | ||||
| JP632983Y2 |
Attorney, Agent or Firm:
Ishida Chochichi (2 outside)
Next Patent: COMPONENT MOUNTING APPARATUS