Title:
負圧波発生装置
Document Type and Number:
Japanese Patent JP6742926
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a negative pressure wave generator which can effectively reduce a micro barometric wave even in a negative pressure wave with a short time width.SOLUTION: A negative pressure wave generator 1 reduces the pressure of a micro barometric wave Wradiated from a mine mouth 21 of a tunnel 2 by means of a negative pressure wave W, and includes a plurality of negative pressure wave generation means 11 arranged in the vicinity of the mine mouth 21 and capable of radiating the negative pressure wave W, and control means 13 which controls operations of the plurality of negative pressure wave generation means 11 so that the negative pressure waves Ware superimposed on the micro barometric wave Wwith a time difference provided.SELECTED DRAWING: Figure 2
Inventors:
Yoshiko Takei
Toshifumi Kudo
Kenta Yamamoto
Nobuyuki Kimura
Takashi Goto
Tatsuya Yamamoto
Toshifumi Kudo
Kenta Yamamoto
Nobuyuki Kimura
Takashi Goto
Tatsuya Yamamoto
Application Number:
JP2017007012A
Publication Date:
August 19, 2020
Filing Date:
January 18, 2017
Export Citation:
Assignee:
Mitsubishi Heavy Industries Machinery Systems Co., Ltd.
East Japan Railway Company
East Japan Railway Company
International Classes:
E01F8/00; E21F17/00
Domestic Patent References:
| JP4182502A | ||||
| JP5209405A | ||||
| JP2014105482A | ||||
| JP2008179979A | ||||
| JP2008156947A | ||||
| JP2012088734A | ||||
| JP2006097350A |
Foreign References:
| WO2009057852A1 |
Attorney, Agent or Firm:
Noriharu Fujita
Miori Takao
Kawakami Miki
Daisuke Nagata
Miori Takao
Kawakami Miki
Daisuke Nagata