JPS5623520B2 - - Google Patents
Info
- Publication number
- JPS5623520B2 JPS5623520B2 JP9987575A JP9987575A JPS5623520B2 JP S5623520 B2 JPS5623520 B2 JP S5623520B2 JP 9987575 A JP9987575 A JP 9987575A JP 9987575 A JP9987575 A JP 9987575A JP S5623520 B2 JPS5623520 B2 JP S5623520B2
- Authority
- JP
- Japan
- 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.)
- Expired
Links
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9987575A JPS5223829A (en) | 1975-08-19 | 1975-08-19 | Tunnel excavation method and its device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9987575A JPS5223829A (en) | 1975-08-19 | 1975-08-19 | Tunnel excavation method and its device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5223829A JPS5223829A (en) | 1977-02-23 |
| JPS5623520B2 true JPS5623520B2 (un) | 1981-06-01 |
Family
ID=14258968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9987575A Granted JPS5223829A (en) | 1975-08-19 | 1975-08-19 | Tunnel excavation method and its device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5223829A (un) |
-
1975
- 1975-08-19 JP JP9987575A patent/JPS5223829A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5223829A (en) | 1977-02-23 |