JPS6452995A - Shield excavator - Google Patents

Shield excavator

Info

Publication number
JPS6452995A
JPS6452995A JP20657087A JP20657087A JPS6452995A JP S6452995 A JPS6452995 A JP S6452995A JP 20657087 A JP20657087 A JP 20657087A JP 20657087 A JP20657087 A JP 20657087A JP S6452995 A JPS6452995 A JP S6452995A
Authority
JP
Japan
Prior art keywords
sand
excavated earth
earth
chamber
driven
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
JP20657087A
Other languages
Japanese (ja)
Inventor
Norio Fujiwara
Kichiya Haniyuda
Nizaemon Kosaka
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 JP20657087A priority Critical patent/JPS6452995A/en
Publication of JPS6452995A publication Critical patent/JPS6452995A/en
Pending legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

PURPOSE: To prevent the closure of excavated earth and sand in a chamber to facilitate the earth-removal of the excavated earth and sand by providing ultrasonic wave transmitters to a wall partioning the chamber on the rear side of a cutter disc. CONSTITUTION: A shield jack 48 is extended while rotationally driving a cutter disc 12 by a cutter motor 32, and a shield boring machine is driven while taking the excavated earth and sand into a chamber 28 from a slit hole 16. In that case, ultrasonic wave transmitters 52 respectively mounted on the inclined surface 18 of a cylindrical body 20 and the circumferential surface of a screw conveyor 26 are driven. When the ultrasonic wave transmitters are driven, ultrasonic oscillation is transferred to the inclined surface 18 through a diaphragm 56, and the excavated earth and sand is smoothly moved, An additive is supplied from a grouting device 33 in accordance with a state of an earth- moving of the screw conveyor 26 to mix it with the excavated earth and sand to stir, and flowability and cut-off efficiency are provided to the excavated earth and sand.
JP20657087A 1987-08-21 1987-08-21 Shield excavator Pending JPS6452995A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20657087A JPS6452995A (en) 1987-08-21 1987-08-21 Shield excavator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20657087A JPS6452995A (en) 1987-08-21 1987-08-21 Shield excavator

Publications (1)

Publication Number Publication Date
JPS6452995A true JPS6452995A (en) 1989-03-01

Family

ID=16525585

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20657087A Pending JPS6452995A (en) 1987-08-21 1987-08-21 Shield excavator

Country Status (1)

Country Link
JP (1) JPS6452995A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2297728A (en) * 1994-07-21 1996-08-14 Mitsui Shipbuilding Eng Semi-submerged catamaran
JP2009228261A (en) * 2008-03-21 2009-10-08 Ihi Corp Shield machine
CN109882190A (en) * 2019-04-11 2019-06-14 中铁工程装备集团有限公司 A kind of multimode enclosed TBM and its construction method suitable for long mountain tunnel
FR3093126A1 (en) * 2019-02-27 2020-08-28 Bouygues Travaux Publics Unclogging an evacuation opening of a tunnel boring machine using ultrasonic waves

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2297728A (en) * 1994-07-21 1996-08-14 Mitsui Shipbuilding Eng Semi-submerged catamaran
JP2009228261A (en) * 2008-03-21 2009-10-08 Ihi Corp Shield machine
FR3093126A1 (en) * 2019-02-27 2020-08-28 Bouygues Travaux Publics Unclogging an evacuation opening of a tunnel boring machine using ultrasonic waves
EP3715583A1 (en) * 2019-02-27 2020-09-30 Bouygues Travaux Publics Cleaning of a discharge opening of a tunnel-boring machine by ultrasonic waves
US10851650B2 (en) 2019-02-27 2020-12-01 Bouygues Travaux Publics Unclogging of a discharge opening of a tunnel boring machine by ultrasonic waves
AU2020201411B2 (en) * 2019-02-27 2025-03-13 Bouygues Travaux Publics Unclogging of a discharge opening of a tunnel boring machine by ultrasonic waves
CN109882190A (en) * 2019-04-11 2019-06-14 中铁工程装备集团有限公司 A kind of multimode enclosed TBM and its construction method suitable for long mountain tunnel
CN109882190B (en) * 2019-04-11 2020-06-19 中铁工程装备集团有限公司 Multi-mode closed TBM suitable for long and large mountain tunnel and construction method thereof

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