Title:
コンクリートに開口部を形成する方法
Document Type and Number:
Japanese Patent JP7175780
Kind Code:
B2
Abstract:
To provide a method for efficiently performing a draining work of drilling water used in a core pulling work and efficiently performing a work for forming an opening in concrete.SOLUTION: A method for forming an opening in concrete includes: a water collecting means installation step of installing water collecting means 6 of receiving water used in a core pulling work and allowing the water to flow down to a water collecting part 7 on a lower part of a plurality of core pulling scheduled parts 20, 20... in which a plurality of through holes surrounding a portion used as a concrete block removed from concrete 1 are formed; a core pulling step of forming a plurality of through holes edge-cutting the concrete block in the concrete by the core pulling step, after the water collecting means installation step; and a concrete block removal step of removing the concrete block edge-cut by the core pulling step and forming an opening from which the concrete block is removed in the concrete.SELECTED DRAWING: Figure 1
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Inventors:
Nishimiya Yukihiro
Shinichi Kuroishi
Ken Satomi
Shinsuke Fukuda
Yuki Tada
Shinichi Kuroishi
Ken Satomi
Shinsuke Fukuda
Yuki Tada
Application Number:
JP2019010454A
Publication Date:
November 21, 2022
Filing Date:
January 24, 2019
Export Citation:
Assignee:
Kumagai Gumi Co., Ltd.
International Classes:
E04G23/02; B28D1/14; B28D7/00; E04G21/32
Domestic Patent References:
| JP2016094764A | ||||
| JP10088828A | ||||
| JP2014201933A | ||||
| JP4021677U | ||||
| JP64058508A |
Foreign References:
| US20090229885 |
Attorney, Agent or Firm:
Yasuo Miyazono