Title:
微気圧波低減装置
Document Type and Number:
Japanese Patent JP6737690
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To realize a micro-barometric wave reduction device that can reduce a tunnel micro-barometric wave without sacrificing a function of an existing tunnel buffer work.SOLUTION: When installing a micro-barometric wave reduction device 10 which has a hood shape with a cross section gradually decreasing from one opening end portion 10a to the other opening end portion 10b on an inner wall side of an existing tunnel buffer work 1, and of which the other opening end portion 10b is formed to have substantially the same size as an entrance opening area of a tunnel T, in the case that the one opening end portion 10a is connected to the opening on the other end 1b side of the tunnel buffer work 1 and also a gap is formed between the other opening end portion 10b and the tunnel T, if an inter-wall space is formed between the micro-barometric wave reduction device 10 and the tunnel buffer work 1, it is possible to suppress a rapid rise of a pressure gradient of a compression wave formed when a high-speed train enters the tunnel T, or disperse the compression wave, so that the tunnel micro-barometric wave can be further reduced.SELECTED DRAWING: Figure 1
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Inventors:
Takashi Goto
Tatsuya Yamamoto
Tatsuya Yamamoto
Application Number:
JP2016222035A
Publication Date:
August 12, 2020
Filing Date:
November 15, 2016
Export Citation:
Assignee:
East Japan Railway Company
International Classes:
E21F1/00; E21D9/14; G10K11/16
Domestic Patent References:
| JP2008019668A | ||||
| JP2002021500A | ||||
| JP2000080890A | ||||
| JP11350882A | ||||
| JP2012225010A | ||||
| JP10317896A | ||||
| JP9221990A | ||||
| JP52001931A | ||||
| JP51144026A |
Foreign References:
| WO2009057852A1 |
Attorney, Agent or Firm:
Gwangyang International Patent Office