JPH0417489U - - Google Patents
Info
- Publication number
- JPH0417489U JPH0417489U JP5726890U JP5726890U JPH0417489U JP H0417489 U JPH0417489 U JP H0417489U JP 5726890 U JP5726890 U JP 5726890U JP 5726890 U JP5726890 U JP 5726890U JP H0417489 U JPH0417489 U JP H0417489U
- Authority
- JP
- Japan
- Prior art keywords
- wire rope
- excavation
- counter
- counts
- detection signal
- 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
- 238000009412 basement excavation Methods 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 5
- 238000005553 drilling Methods 0.000 claims description 4
- 239000000696 magnetic material Substances 0.000 claims description 2
- 239000002689 soil Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5726890U JPH0417489U (fr) | 1990-06-01 | 1990-06-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5726890U JPH0417489U (fr) | 1990-06-01 | 1990-06-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0417489U true JPH0417489U (fr) | 1992-02-13 |
Family
ID=31581827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5726890U Pending JPH0417489U (fr) | 1990-06-01 | 1990-06-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0417489U (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016079705A (ja) * | 2014-10-17 | 2016-05-16 | 株式会社大林組 | 計測機器の埋設方法 |
-
1990
- 1990-06-01 JP JP5726890U patent/JPH0417489U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016079705A (ja) * | 2014-10-17 | 2016-05-16 | 株式会社大林組 | 計測機器の埋設方法 |
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