JPS6439493A - Arbitrary section shielding excavator - Google Patents

Arbitrary section shielding excavator

Info

Publication number
JPS6439493A
JPS6439493A JP19430587A JP19430587A JPS6439493A JP S6439493 A JPS6439493 A JP S6439493A JP 19430587 A JP19430587 A JP 19430587A JP 19430587 A JP19430587 A JP 19430587A JP S6439493 A JPS6439493 A JP S6439493A
Authority
JP
Japan
Prior art keywords
digging
sub
digging machines
machines
main
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
JP19430587A
Other languages
Japanese (ja)
Inventor
Kiyoshi Miya
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.)
Obayashi Corp
Original Assignee
Obayashi 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 Obayashi Corp filed Critical Obayashi Corp
Priority to JP19430587A priority Critical patent/JPS6439493A/en
Publication of JPS6439493A publication Critical patent/JPS6439493A/en
Pending legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

PURPOSE: To dig an arbitrary crosssection without generating remaining parts after digging by arranging a number of sub-digging machines on the outer peripheries of main digging machines and arranging a number of jet water jetting nozzles among these sub-digging machines. CONSTITUTION: Main digging machines 14 dig circular crosssections respectively with a large crosssection and have radially extending slit-like openings 20 for taking in earth and sand. Sub-digging machines 16 and 18 for digging small circular crosssections along a crosssectional shape to be digged are arranged on the outer peripheries of these main digging machines 14. Jet water jetting nozzles 26 are arranged among these sub-digging machines 16 and 18.
JP19430587A 1987-08-05 1987-08-05 Arbitrary section shielding excavator Pending JPS6439493A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19430587A JPS6439493A (en) 1987-08-05 1987-08-05 Arbitrary section shielding excavator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19430587A JPS6439493A (en) 1987-08-05 1987-08-05 Arbitrary section shielding excavator

Publications (1)

Publication Number Publication Date
JPS6439493A true JPS6439493A (en) 1989-02-09

Family

ID=16322391

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19430587A Pending JPS6439493A (en) 1987-08-05 1987-08-05 Arbitrary section shielding excavator

Country Status (1)

Country Link
JP (1) JPS6439493A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0235190A (en) * 1988-04-19 1990-02-05 Yoshiji Matsumoto Multicore-parallel optional section shield machine
JPH02236395A (en) * 1989-03-08 1990-09-19 Tekken Constr Co Ltd Horse shoe type shield machine
JP2003529702A (en) * 1999-10-04 2003-10-07 ローレンス ポンプ インコーポレイテッド Underwater motor with shaft seal
JP2007146651A (en) * 2007-03-12 2007-06-14 Ohbayashi Corp Tunnel boring machine
JP2007186990A (en) * 2007-03-12 2007-07-26 Ohbayashi Corp Tunnel boring machine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61221494A (en) * 1985-03-25 1986-10-01 三井建設株式会社 Oval shield excavator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61221494A (en) * 1985-03-25 1986-10-01 三井建設株式会社 Oval shield excavator

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0235190A (en) * 1988-04-19 1990-02-05 Yoshiji Matsumoto Multicore-parallel optional section shield machine
JPH02236395A (en) * 1989-03-08 1990-09-19 Tekken Constr Co Ltd Horse shoe type shield machine
JP2003529702A (en) * 1999-10-04 2003-10-07 ローレンス ポンプ インコーポレイテッド Underwater motor with shaft seal
JP2007146651A (en) * 2007-03-12 2007-06-14 Ohbayashi Corp Tunnel boring machine
JP2007186990A (en) * 2007-03-12 2007-07-26 Ohbayashi Corp Tunnel boring machine

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