JPH0444072B2 - - Google Patents
Info
- Publication number
- JPH0444072B2 JPH0444072B2 JP9380985A JP9380985A JPH0444072B2 JP H0444072 B2 JPH0444072 B2 JP H0444072B2 JP 9380985 A JP9380985 A JP 9380985A JP 9380985 A JP9380985 A JP 9380985A JP H0444072 B2 JPH0444072 B2 JP H0444072B2
- Authority
- JP
- Japan
- Prior art keywords
- borehole
- magnetic sensor
- cutter
- hole
- detecting
- 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 15
- 238000001514 detection method Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 13
- 230000005641 tunneling Effects 0.000 claims description 10
- 238000005553 drilling Methods 0.000 claims description 8
- 230000010355 oscillation Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000035699 permeability Effects 0.000 description 3
- 229910000859 α-Fe Inorganic materials 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9380985A JPS61254793A (ja) | 1985-05-02 | 1985-05-02 | 掘削孔位置の検出方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9380985A JPS61254793A (ja) | 1985-05-02 | 1985-05-02 | 掘削孔位置の検出方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61254793A JPS61254793A (ja) | 1986-11-12 |
| JPH0444072B2 true JPH0444072B2 (en]) | 1992-07-20 |
Family
ID=14092728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9380985A Granted JPS61254793A (ja) | 1985-05-02 | 1985-05-02 | 掘削孔位置の検出方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61254793A (en]) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2819042B2 (ja) * | 1990-03-08 | 1998-10-30 | 株式会社小松製作所 | 地中掘削機の位置検出装置 |
| JP2520754B2 (ja) * | 1990-03-12 | 1996-07-31 | 株式会社小松製作所 | シ―ルド掘進機の位置検出装置 |
| JP2543231B2 (ja) * | 1990-06-28 | 1996-10-16 | 株式会社大林組 | シ―ルド掘進機位置の検出方法 |
-
1985
- 1985-05-02 JP JP9380985A patent/JPS61254793A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61254793A (ja) | 1986-11-12 |
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