JPS521932A - Preventive device of impulse sound of tunnel - Google Patents
Preventive device of impulse sound of tunnelInfo
- 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
Links
Landscapes
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
- Building Environments (AREA)
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)
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 |
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 |
KR100449510B1 (en) * | 2002-03-02 | 2004-09-22 | 주식회사 대우엔지니어링 | Draft hole type train tunnel |
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 |
KR100449509B1 (en) * | 2002-03-02 | 2004-09-22 | 주식회사 대우엔지니어링 | Draft hole type train tunnel |
-
1975
- 1975-06-23 JP JP7726075A patent/JPS521932A/en active Pending
Cited By (9)
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 |
JPS5531274B2 (en) * | 1977-06-06 | 1980-08-16 | ||
JPH08135381A (en) * | 1994-11-15 | 1996-05-28 | Okada Toshio | Impact relaxation device of tunnel entrance |
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 |
KR100449510B1 (en) * | 2002-03-02 | 2004-09-22 | 주식회사 대우엔지니어링 | Draft hole type train tunnel |
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 |
KR100449509B1 (en) * | 2002-03-02 | 2004-09-22 | 주식회사 대우엔지니어링 | Draft hole type train tunnel |
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