Title:
覆工コンクリート打設装置
Document Type and Number:
Japanese Patent JP6983055
Kind Code:
B2
Abstract:
To save manpower and make tunnel construction be efficient.SOLUTION: When it is determined, on the basis of positional information showing a placed concrete 16's position along a circumferential direction and lengthwise direction of a tunnel 10, that a deviation of the concrete 16's height along the lengthwise direction of the tunnel 10 exceeds a first allowable range, a lining concrete placing device identifies a vibrator 30 to be vibrated on the basis of the positional information and makes the identified vibrator 30 be vibrated. The lining concrete placing device enables automation without requiring operation of moving and inserting a bar-like vibrator into the concrete 16 or selectively vibrating a plurality of vibrators provided on a concrete placing form 22 so as to eliminate a deviation of the concrete 16's height, and enables uniform placing of the concrete 16 while suppressing the deviation of the concrete 16's height; which gives an advantage in improving efficiency of tunnel construction.SELECTED DRAWING: Figure 1
Inventors:
Mikawachi Nagayasu
Yusuke Fujikura
Yusuke Fujikura
Application Number:
JP2017245100A
Publication Date:
December 17, 2021
Filing Date:
December 21, 2017
Export Citation:
Assignee:
Fujita Co., Ltd.
International Classes:
E21D11/10
Domestic Patent References:
| JP6002495A | ||||
| JP2014224430A | ||||
| JP11210393A |
Foreign References:
| US20170254202 |
Attorney, Agent or Firm:
Shigeru Noda