JPS6453111A - Rotary drilling machine - Google Patents

Rotary drilling machine

Info

Publication number
JPS6453111A
JPS6453111A JP62208276A JP20827687A JPS6453111A JP S6453111 A JPS6453111 A JP S6453111A JP 62208276 A JP62208276 A JP 62208276A JP 20827687 A JP20827687 A JP 20827687A JP S6453111 A JPS6453111 A JP S6453111A
Authority
JP
Japan
Prior art keywords
drill pipe
inclinometers
hole
drill
pipe
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.)
Granted
Application number
JP62208276A
Other languages
Japanese (ja)
Other versions
JPH0545881B2 (en
Inventor
Tadaharu Inoue
Masaki Hirano
Yoshihiro San
Fujiki Shimoyama
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.)
Kumagai Gumi Co Ltd
Sakata Denki Co Ltd
Original Assignee
Kumagai Gumi Co Ltd
Sakata Denki Co Ltd
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 Kumagai Gumi Co Ltd, Sakata Denki Co Ltd filed Critical Kumagai Gumi Co Ltd
Priority to JP62208276A priority Critical patent/JPS6453111A/en
Publication of JPS6453111A publication Critical patent/JPS6453111A/en
Publication of JPH0545881B2 publication Critical patent/JPH0545881B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)

Abstract

PURPOSE:To accurately judge whether or not the drilling direction of a hole is on a perpendicular line by providing a drill pipe which is driven to rotate, a cutting means which is fixed to one end part of the pipe, and inclinometers fitted to one end part of the drill page. CONSTITUTION:While the hole 16 is drilled, both inclinometers 28 receive equal centrifugal force generated by the rotation of the drill pipe 12 on condition the axis of the drill pipe 12 is perpendicular and output an equal value. When the axis of the drill pipe 12 is not perpendicular, on the other hand, both inclinometers 28 slant together wit the drill pipe 12 and the output values of both inclinometers 28 are different. It is confirmed whether or the drill pipe 12 is perpendicular, namely, whether or not the hole 16 is drilled perpendicularly by checking whether or not the outputs of both inclinometers 28 is equal.
JP62208276A 1987-08-24 1987-08-24 Rotary drilling machine Granted JPS6453111A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62208276A JPS6453111A (en) 1987-08-24 1987-08-24 Rotary drilling machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62208276A JPS6453111A (en) 1987-08-24 1987-08-24 Rotary drilling machine

Publications (2)

Publication Number Publication Date
JPS6453111A true JPS6453111A (en) 1989-03-01
JPH0545881B2 JPH0545881B2 (en) 1993-07-12

Family

ID=16553556

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62208276A Granted JPS6453111A (en) 1987-08-24 1987-08-24 Rotary drilling machine

Country Status (1)

Country Link
JP (1) JPS6453111A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012158981A (en) * 2012-05-28 2012-08-23 Suimei Grout Corp Discharge method of sediment inside joint of steel pipe sheet pile

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60220814A (en) * 1984-04-18 1985-11-05 Jeco Co Ltd Centrifugal force blind type inclinometer
JPS6171314A (en) * 1984-09-07 1986-04-12 アルストム Method of measuring azimuth for tilt excavation

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60220814A (en) * 1984-04-18 1985-11-05 Jeco Co Ltd Centrifugal force blind type inclinometer
JPS6171314A (en) * 1984-09-07 1986-04-12 アルストム Method of measuring azimuth for tilt excavation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012158981A (en) * 2012-05-28 2012-08-23 Suimei Grout Corp Discharge method of sediment inside joint of steel pipe sheet pile

Also Published As

Publication number Publication date
JPH0545881B2 (en) 1993-07-12

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