JPS6462590A - Method of discharging slime during drilling and air lift device for drilling used for said method - Google Patents

Method of discharging slime during drilling and air lift device for drilling used for said method

Info

Publication number
JPS6462590A
JPS6462590A JP21839887A JP21839887A JPS6462590A JP S6462590 A JPS6462590 A JP S6462590A JP 21839887 A JP21839887 A JP 21839887A JP 21839887 A JP21839887 A JP 21839887A JP S6462590 A JPS6462590 A JP S6462590A
Authority
JP
Japan
Prior art keywords
compressed air
discharge
drilling
porous body
discharge 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
JP21839887A
Other languages
Japanese (ja)
Other versions
JPH0426676B2 (en
Inventor
Akiyoshi Nojiri
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.)
Kajima Corp
Original Assignee
Kajima 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 Kajima Corp filed Critical Kajima Corp
Priority to JP21839887A priority Critical patent/JPS6462590A/en
Publication of JPS6462590A publication Critical patent/JPS6462590A/en
Publication of JPH0426676B2 publication Critical patent/JPH0426676B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)

Abstract

PURPOSE: To prevent pulsation flow, and also prevent a bored wall from being damaged in their stability by attaching discharge members consisting of a porous body to the lower part of a discharge pipe, and permitting compressed air to be spouted in the discharge pipe through the discharge member of the porous body. CONSTITUTION: A discharge member 6 consisting of a porous body is secured at a plurality of desired positions on the lower part of a cylindrical discharge pipe 3 in a drilling machine A. A compressed air chamber 15 is formed in a manner surrounding the circumference of the discharge member 6, and compressed air is sent from a force feeding pipe 16 to be introduced in the compressed air chamber 15 through a check valve 17. Compressed air passes through the discharge member 6, and is spouted in the discharge pipe 3 in the form of fine bubbles. The fine bubbles allow an ascending current to have viscosity, thereby rendering slime transportation effective.
JP21839887A 1987-09-01 1987-09-01 Method of discharging slime during drilling and air lift device for drilling used for said method Granted JPS6462590A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21839887A JPS6462590A (en) 1987-09-01 1987-09-01 Method of discharging slime during drilling and air lift device for drilling used for said method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21839887A JPS6462590A (en) 1987-09-01 1987-09-01 Method of discharging slime during drilling and air lift device for drilling used for said method

Publications (2)

Publication Number Publication Date
JPS6462590A true JPS6462590A (en) 1989-03-09
JPH0426676B2 JPH0426676B2 (en) 1992-05-07

Family

ID=16719285

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21839887A Granted JPS6462590A (en) 1987-09-01 1987-09-01 Method of discharging slime during drilling and air lift device for drilling used for said method

Country Status (1)

Country Link
JP (1) JPS6462590A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100925012B1 (en) * 2007-12-07 2009-11-04 큰산기술 주식회사 Nozzle for cleaning a tube well
WO2013021911A1 (en) 2011-08-05 2013-02-14 株式会社医研工業 Method for manufacturing eyeless suture needle
JP2016113845A (en) * 2014-12-17 2016-06-23 東亜建設工業株式会社 Air-lift pump device and aquatic contamination component removing method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4883001A (en) * 1972-01-21 1973-11-06
JPS4928361A (en) * 1972-07-05 1974-03-13
JPS57169191A (en) * 1981-04-10 1982-10-18 Taisei Kiso Sekkei Kk Self-boring method and apparatus
JPS61233196A (en) * 1985-04-08 1986-10-17 株式会社　日さく Air injection method in air lift well

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4883001A (en) * 1972-01-21 1973-11-06
JPS4928361A (en) * 1972-07-05 1974-03-13
JPS57169191A (en) * 1981-04-10 1982-10-18 Taisei Kiso Sekkei Kk Self-boring method and apparatus
JPS61233196A (en) * 1985-04-08 1986-10-17 株式会社　日さく Air injection method in air lift well

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100925012B1 (en) * 2007-12-07 2009-11-04 큰산기술 주식회사 Nozzle for cleaning a tube well
WO2013021911A1 (en) 2011-08-05 2013-02-14 株式会社医研工業 Method for manufacturing eyeless suture needle
JP2016113845A (en) * 2014-12-17 2016-06-23 東亜建設工業株式会社 Air-lift pump device and aquatic contamination component removing method

Also Published As

Publication number Publication date
JPH0426676B2 (en) 1992-05-07

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