JPS6160238B2 - - Google Patents

Info

Publication number
JPS6160238B2
JPS6160238B2 JP54040285A JP4028579A JPS6160238B2 JP S6160238 B2 JPS6160238 B2 JP S6160238B2 JP 54040285 A JP54040285 A JP 54040285A JP 4028579 A JP4028579 A JP 4028579A JP S6160238 B2 JPS6160238 B2 JP S6160238B2
Authority
JP
Japan
Prior art keywords
hole
diameter
pipe
diameter pipe
small
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.)
Expired
Application number
JP54040285A
Other languages
English (en)
Japanese (ja)
Other versions
JPS55132899A (en
Inventor
Nobuo Myajima
Kyokatsu Hara
Yasuo Sasaki
Hisashi Hasegawa
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 Steel Corp
Original Assignee
Nippon Steel 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP4028579A priority Critical patent/JPS55132899A/ja
Publication of JPS55132899A publication Critical patent/JPS55132899A/ja
Publication of JPS6160238B2 publication Critical patent/JPS6160238B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
  • Earth Drilling (AREA)
JP4028579A 1979-04-05 1979-04-05 Method of inserting largeediameter pipe into curved smallldiameter hole Granted JPS55132899A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4028579A JPS55132899A (en) 1979-04-05 1979-04-05 Method of inserting largeediameter pipe into curved smallldiameter hole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4028579A JPS55132899A (en) 1979-04-05 1979-04-05 Method of inserting largeediameter pipe into curved smallldiameter hole

Publications (2)

Publication Number Publication Date
JPS55132899A JPS55132899A (en) 1980-10-16
JPS6160238B2 true JPS6160238B2 (enrdf_load_stackoverflow) 1986-12-19

Family

ID=12576331

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4028579A Granted JPS55132899A (en) 1979-04-05 1979-04-05 Method of inserting largeediameter pipe into curved smallldiameter hole

Country Status (1)

Country Link
JP (1) JPS55132899A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4674579A (en) * 1985-03-07 1987-06-23 Flowmole Corporation Method and apparatus for installment of underground utilities
JPH01105897A (ja) * 1987-10-20 1989-04-24 Iseki Poly Tech Inc 穴の掘削方法および装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5448912A (en) * 1977-09-27 1979-04-17 Teiseki Sakusei Kougiyou Kk Device of laying large aperture pipe while expanding arched hole

Also Published As

Publication number Publication date
JPS55132899A (en) 1980-10-16

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