JPS5575023A - Method and apparatus for excavating continuous vertical hole - Google Patents

Method and apparatus for excavating continuous vertical hole

Info

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
Application number
JP14849078A
Other languages
Japanese (ja)
Inventor
Takeyoshi Yoshida
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Taisei Corp
Original Assignee
Taisei Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Taisei Corp filed Critical Taisei Corp
Priority to JP14849078A priority Critical patent/JPS5575023A/en
Publication of JPS5575023A publication Critical patent/JPS5575023A/en
Pending legal-status Critical Current

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
JP14849078A 1978-11-30 1978-11-30 Method and apparatus for excavating continuous vertical hole Pending JPS5575023A (en)

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)

* Cited by examiner, † Cited by third party
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
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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