JPS57178096A - Pit boring apparatus in small orifice diameter pipe pushing method - Google Patents

Pit boring apparatus in small orifice diameter pipe pushing method

Info

Publication number
JPS57178096A
JPS57178096A JP6270581A JP6270581A JPS57178096A JP S57178096 A JPS57178096 A JP S57178096A JP 6270581 A JP6270581 A JP 6270581A JP 6270581 A JP6270581 A JP 6270581A JP S57178096 A JPS57178096 A JP S57178096A
Authority
JP
Japan
Prior art keywords
diameter pipe
pushing method
orifice diameter
small orifice
boring apparatus
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
JP6270581A
Other languages
Japanese (ja)
Inventor
Suekichi Hayakawa
Kishio Kurisawa
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP6270581A priority Critical patent/JPS57178096A/en
Publication of JPS57178096A publication Critical patent/JPS57178096A/en
Pending legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
JP6270581A 1981-04-25 1981-04-25 Pit boring apparatus in small orifice diameter pipe pushing method Pending JPS57178096A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6270581A JPS57178096A (en) 1981-04-25 1981-04-25 Pit boring apparatus in small orifice diameter pipe pushing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6270581A JPS57178096A (en) 1981-04-25 1981-04-25 Pit boring apparatus in small orifice diameter pipe pushing method

Publications (1)

Publication Number Publication Date
JPS57178096A true JPS57178096A (en) 1982-11-02

Family

ID=13207991

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6270581A Pending JPS57178096A (en) 1981-04-25 1981-04-25 Pit boring apparatus in small orifice diameter pipe pushing method

Country Status (1)

Country Link
JP (1) JPS57178096A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6121297A (en) * 1984-07-06 1986-01-29 岩井　準一 Freely rotatable drilling apparatus for drilling ground hole
JPS6135998U (en) * 1984-07-31 1986-03-05 三和機材株式会社 Buried pipe propulsion device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4919563A (en) * 1972-06-14 1974-02-21
JPS4922406A (en) * 1972-06-21 1974-02-27

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4919563A (en) * 1972-06-14 1974-02-21
JPS4922406A (en) * 1972-06-21 1974-02-27

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6121297A (en) * 1984-07-06 1986-01-29 岩井　準一 Freely rotatable drilling apparatus for drilling ground hole
JPS6135998U (en) * 1984-07-31 1986-03-05 三和機材株式会社 Buried pipe propulsion device

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