JPS646497A - Shielding excavator - Google Patents

Shielding excavator

Info

Publication number
JPS646497A
JPS646497A JP15987787A JP15987787A JPS646497A JP S646497 A JPS646497 A JP S646497A JP 15987787 A JP15987787 A JP 15987787A JP 15987787 A JP15987787 A JP 15987787A JP S646497 A JPS646497 A JP S646497A
Authority
JP
Japan
Prior art keywords
soil
earth
pressure chamber
cutter disc
firmly fixed
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.)
Granted
Application number
JP15987787A
Other languages
Japanese (ja)
Other versions
JPH0684715B2 (en
Inventor
Hiroshi Noda
Tatsuhiko Tsujie
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 JP62159877A priority Critical patent/JPH0684715B2/en
Publication of JPS646497A publication Critical patent/JPS646497A/en
Publication of JPH0684715B2 publication Critical patent/JPH0684715B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

PURPOSE: To reduce excavating resistance by providing a plurality of soil-intake openings opened to an earth-pressure chamber at the backface of a cutter disc, while internally touching the circular section of a cylindrical skin plate and providing screw conveyors for discharging soil therein. CONSTITUTION: This shield excavation machine is provided with a skin plate 10, a cutter disc 12 at the front end, and an earth-pressure chamber 14 at the backside. A number of cutter bits 16 are firmly fixed to the front face of the cutter disc 10, to take soil of the natural ground into the earth-pressure chamber 14 through slit holes by a drive motor connected to a rotary shaft 18. Screw conveyors 26 for discharging soil are firmly fixed to the rear end parts 24b of respective intake openings 24, and spiral blades 26b, shafts 26c and large diameter spiral blades 26d are provided therein. The cutter disc 12 is rotated and propulsive jacks 20 are extended to advance while filling excavated soil into the earth-pressure chamber 14. In this way, soil can be easily filled in the earth-pressure chamber even in a large section of a tunnel.
JP62159877A 1987-06-29 1987-06-29 Shield machine Expired - Lifetime JPH0684715B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62159877A JPH0684715B2 (en) 1987-06-29 1987-06-29 Shield machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62159877A JPH0684715B2 (en) 1987-06-29 1987-06-29 Shield machine

Publications (2)

Publication Number Publication Date
JPS646497A true JPS646497A (en) 1989-01-11
JPH0684715B2 JPH0684715B2 (en) 1994-10-26

Family

ID=15703154

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62159877A Expired - Lifetime JPH0684715B2 (en) 1987-06-29 1987-06-29 Shield machine

Country Status (1)

Country Link
JP (1) JPH0684715B2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58595A (en) * 1981-06-24 1983-01-05 日立造船株式会社 Shield excavator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58595A (en) * 1981-06-24 1983-01-05 日立造船株式会社 Shield excavator

Also Published As

Publication number Publication date
JPH0684715B2 (en) 1994-10-26

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