JPS6217073B2 - - Google Patents
Info
- Publication number
- JPS6217073B2 JPS6217073B2 JP21136182A JP21136182A JPS6217073B2 JP S6217073 B2 JPS6217073 B2 JP S6217073B2 JP 21136182 A JP21136182 A JP 21136182A JP 21136182 A JP21136182 A JP 21136182A JP S6217073 B2 JPS6217073 B2 JP S6217073B2
- Authority
- JP
- Japan
- Prior art keywords
- tunnel
- excavation
- guide ring
- center
- enlarged
- 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.)
- Expired
Links
- 238000009412 basement excavation Methods 0.000 claims description 34
- 238000000034 method Methods 0.000 claims description 13
- 238000010276 construction Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21136182A JPS59102091A (ja) | 1982-12-03 | 1982-12-03 | トンネル拡大掘削工法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21136182A JPS59102091A (ja) | 1982-12-03 | 1982-12-03 | トンネル拡大掘削工法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59102091A JPS59102091A (ja) | 1984-06-12 |
| JPS6217073B2 true JPS6217073B2 (cs) | 1987-04-15 |
Family
ID=16604692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21136182A Granted JPS59102091A (ja) | 1982-12-03 | 1982-12-03 | トンネル拡大掘削工法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59102091A (cs) |
-
1982
- 1982-12-03 JP JP21136182A patent/JPS59102091A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59102091A (ja) | 1984-06-12 |
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