JPS5219415A - Excavation method - Google Patents

Excavation method

Info

Publication number
JPS5219415A
JPS5219415A JP9552975A JP9552975A JPS5219415A JP S5219415 A JPS5219415 A JP S5219415A JP 9552975 A JP9552975 A JP 9552975A JP 9552975 A JP9552975 A JP 9552975A JP S5219415 A JPS5219415 A JP S5219415A
Authority
JP
Japan
Prior art keywords
excavation method
excavation
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
JP9552975A
Other languages
Japanese (ja)
Inventor
Ichirou Tanaka
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 JP9552975A priority Critical patent/JPS5219415A/en
Publication of JPS5219415A publication Critical patent/JPS5219415A/en
Pending legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
JP9552975A 1975-08-06 1975-08-06 Excavation method Pending JPS5219415A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9552975A JPS5219415A (en) 1975-08-06 1975-08-06 Excavation method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9552975A JPS5219415A (en) 1975-08-06 1975-08-06 Excavation method

Publications (1)

Publication Number Publication Date
JPS5219415A true JPS5219415A (en) 1977-02-14

Family

ID=14140072

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9552975A Pending JPS5219415A (en) 1975-08-06 1975-08-06 Excavation method

Country Status (1)

Country Link
JP (1) JPS5219415A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0296088A (en) * 1988-10-03 1990-04-06 Osaka Bosui Constr Co Ltd Direction correcting device for steel pipe to be impact-propelled in horizontal direction in ground

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4916446A (en) * 1972-05-22 1974-02-13

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4916446A (en) * 1972-05-22 1974-02-13

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0296088A (en) * 1988-10-03 1990-04-06 Osaka Bosui Constr Co Ltd Direction correcting device for steel pipe to be impact-propelled in horizontal direction in ground

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