JPS5575023A - Method and apparatus for excavating continuous vertical hole - Google Patents
Method and apparatus for excavating continuous vertical holeInfo
- Publication number
- JPS5575023A JPS5575023A JP14849078A JP14849078A JPS5575023A JP S5575023 A JPS5575023 A JP S5575023A JP 14849078 A JP14849078 A JP 14849078A JP 14849078 A JP14849078 A JP 14849078A JP S5575023 A JPS5575023 A JP S5575023A
- Authority
- JP
- Japan
- Prior art keywords
- boring
- vertical
- rod
- axis
- electromagnet
- 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
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
PURPOSE: To prevent horizontal displacement of excavation, to reinforce a vertical pushing force, and to improve excavation precision by fitting an electromagnet to an excavator guide device in the case of excavating vertical holes for a continuous underground wall.
CONSTITUTION: With an electromagnet 12 of a boring rod holding member 10 operated, a magnetically attractive surface 11 of the member 10 is magnetically adhered to an adhesive surface 9 of a guide memeber 5a. The magnetic force fixes the members 10 and 5a together integrally, and the member 10 holds a boring rod 2 vertical, with the center axis of the rod 2 according to the boring axis of a vertical hole 1b. With boring started by a bit 3, the rod 2 is held vertical in a passing hole 13 of the member 10 fixed to the member 5a, so that the rode 2 descends along the proper boring axis without horizontal deviation.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14849078A JPS5575023A (en) | 1978-11-30 | 1978-11-30 | Method and apparatus for excavating continuous vertical hole |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14849078A JPS5575023A (en) | 1978-11-30 | 1978-11-30 | Method and apparatus for excavating continuous vertical hole |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5575023A true JPS5575023A (en) | 1980-06-06 |
Family
ID=15453913
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14849078A Pending JPS5575023A (en) | 1978-11-30 | 1978-11-30 | Method and apparatus for excavating continuous vertical hole |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5575023A (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50114803A (en) * | 1974-02-25 | 1975-09-09 | ||
JPS5238707A (en) * | 1975-09-19 | 1977-03-25 | Tobishima Construct Co Ltd | Excavating bucket guide device for underground wall building ditcher |
JPS52115102U (en) * | 1976-02-27 | 1977-09-01 |
-
1978
- 1978-11-30 JP JP14849078A patent/JPS5575023A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50114803A (en) * | 1974-02-25 | 1975-09-09 | ||
JPS5238707A (en) * | 1975-09-19 | 1977-03-25 | Tobishima Construct Co Ltd | Excavating bucket guide device for underground wall building ditcher |
JPS52115102U (en) * | 1976-02-27 | 1977-09-01 |
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