JPS521932A - Preventive device of impulse sound of tunnel - Google Patents

Preventive device of impulse sound of tunnel

Info

Publication number
JPS521932A
JPS521932A JP7726075A JP7726075A JPS521932A JP S521932 A JPS521932 A JP S521932A JP 7726075 A JP7726075 A JP 7726075A JP 7726075 A JP7726075 A JP 7726075A JP S521932 A JPS521932 A JP S521932A
Authority
JP
Japan
Prior art keywords
tunnel
preventive device
impulse sound
impulse
sound
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP7726075A
Other languages
Japanese (ja)
Inventor
Yoshihiko Irie
Shigeru Takagi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP7726075A priority Critical patent/JPS521932A/en
Publication of JPS521932A publication Critical patent/JPS521932A/en
Pending legal-status Critical Current

Links

Landscapes

  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
  • Building Environments (AREA)
JP7726075A 1975-06-23 1975-06-23 Preventive device of impulse sound of tunnel Pending JPS521932A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7726075A JPS521932A (en) 1975-06-23 1975-06-23 Preventive device of impulse sound of tunnel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7726075A JPS521932A (en) 1975-06-23 1975-06-23 Preventive device of impulse sound of tunnel

Publications (1)

Publication Number Publication Date
JPS521932A true JPS521932A (en) 1977-01-08

Family

ID=13628871

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7726075A Pending JPS521932A (en) 1975-06-23 1975-06-23 Preventive device of impulse sound of tunnel

Country Status (1)

Country Link
JP (1) JPS521932A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS541930A (en) * 1977-06-06 1979-01-09 Japan National Railway Method of reducing air pressure noises at outlet opening of tunnel
JPH08135381A (en) * 1994-11-15 1996-05-28 Okada Toshio Impact relaxation device of tunnel entrance
KR100449514B1 (en) * 2002-03-02 2004-09-22 주식회사 대우엔지니어링 Duct tunnel system
KR100449512B1 (en) * 2002-03-02 2004-09-22 주식회사 대우엔지니어링 Duct tunnel system
KR100449510B1 (en) * 2002-03-02 2004-09-22 주식회사 대우엔지니어링 Draft hole type train tunnel
KR100449513B1 (en) * 2002-03-02 2004-09-22 주식회사 대우엔지니어링 Duct tunnel system
KR100449511B1 (en) * 2002-03-02 2004-09-22 주식회사 대우엔지니어링 Draft hole type train tunnel
KR100449509B1 (en) * 2002-03-02 2004-09-22 주식회사 대우엔지니어링 Draft hole type train tunnel

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS541930A (en) * 1977-06-06 1979-01-09 Japan National Railway Method of reducing air pressure noises at outlet opening of tunnel
JPH08135381A (en) * 1994-11-15 1996-05-28 Okada Toshio Impact relaxation device of tunnel entrance
KR100449514B1 (en) * 2002-03-02 2004-09-22 주식회사 대우엔지니어링 Duct tunnel system
KR100449512B1 (en) * 2002-03-02 2004-09-22 주식회사 대우엔지니어링 Duct tunnel system
KR100449510B1 (en) * 2002-03-02 2004-09-22 주식회사 대우엔지니어링 Draft hole type train tunnel
KR100449513B1 (en) * 2002-03-02 2004-09-22 주식회사 대우엔지니어링 Duct tunnel system
KR100449511B1 (en) * 2002-03-02 2004-09-22 주식회사 대우엔지니어링 Draft hole type train tunnel
KR100449509B1 (en) * 2002-03-02 2004-09-22 주식회사 대우엔지니어링 Draft hole type train tunnel

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