JPS5991290A - 正逆回転式掘削装置 - Google Patents

正逆回転式掘削装置

Info

Publication number
JPS5991290A
JPS5991290A JP20017682A JP20017682A JPS5991290A JP S5991290 A JPS5991290 A JP S5991290A JP 20017682 A JP20017682 A JP 20017682A JP 20017682 A JP20017682 A JP 20017682A JP S5991290 A JPS5991290 A JP S5991290A
Authority
JP
Japan
Prior art keywords
water
casing
cylinder
passage
switching valve
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
JP20017682A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6315430B2 (enrdf_load_html_response
Inventor
松枝　眞
武彦 所
信吉 小野
竹洞　勉
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.)
Nippon Koki Co Ltd
Original Assignee
Nippon Koki 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 Nippon Koki Co Ltd filed Critical Nippon Koki Co Ltd
Priority to JP20017682A priority Critical patent/JPS5991290A/ja
Publication of JPS5991290A publication Critical patent/JPS5991290A/ja
Publication of JPS6315430B2 publication Critical patent/JPS6315430B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP20017682A 1982-11-15 1982-11-15 正逆回転式掘削装置 Granted JPS5991290A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20017682A JPS5991290A (ja) 1982-11-15 1982-11-15 正逆回転式掘削装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20017682A JPS5991290A (ja) 1982-11-15 1982-11-15 正逆回転式掘削装置

Publications (2)

Publication Number Publication Date
JPS5991290A true JPS5991290A (ja) 1984-05-25
JPS6315430B2 JPS6315430B2 (enrdf_load_html_response) 1988-04-05

Family

ID=16420053

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20017682A Granted JPS5991290A (ja) 1982-11-15 1982-11-15 正逆回転式掘削装置

Country Status (1)

Country Link
JP (1) JPS5991290A (enrdf_load_html_response)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100921718B1 (ko) * 2005-09-01 2009-10-15 가부시키가이샤 산토고교샤 지중 연속벽 구축 방법

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH033645U (enrdf_load_html_response) * 1989-05-31 1991-01-16

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5257001A (en) * 1975-10-31 1977-05-11 Inst Gorunogo Dera Sibirsk Oto Rotary impact type pneumatic drilling device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5257001A (en) * 1975-10-31 1977-05-11 Inst Gorunogo Dera Sibirsk Oto Rotary impact type pneumatic drilling device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100921718B1 (ko) * 2005-09-01 2009-10-15 가부시키가이샤 산토고교샤 지중 연속벽 구축 방법

Also Published As

Publication number Publication date
JPS6315430B2 (enrdf_load_html_response) 1988-04-05

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