FIELD: underground building, particularly tunnel shields used to drive tunnels of square cross-sections.
SUBSTANCE: device has body of square cross-section with rounded corners and ground excavation unit made as rotor with cutting members connected to end and cylindrical surfaces thereof. Device also has cutting members made as inserted blades secured in corners of end body surface and inclined walls, which are arranged between body and partition.
EFFECT: simplified structure and increased operational reliability.
3 dwg
Title | Year | Author | Number |
---|---|---|---|
TUNNEL SHIELD | 1999 |
|
RU2151296C1 |
TUNNEL SHIELD | 1999 |
|
RU2150582C1 |
TUNNELLING SHIELD | 0 |
|
SU848653A1 |
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RU2607824C1 |
MECHANIZED SHIELD | 2001 |
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RU2211925C1 |
TUNNEL SHIELD | 1992 |
|
RU2041357C1 |
OVAL TELESCOPIC ACTUATOR OF TUNNEL SHIELD | 2010 |
|
RU2439327C2 |
TUNNELLING SHIELD | 0 |
|
SU812928A1 |
POWERED SHIELD COMPLEX FOR CONSTRUCTION OF TUNNELS WITH PREFABRICATED EMBEDDED IN ROCK LINING | 1988 |
|
RU2018677C1 |
TUNNELING SHIELD | 2000 |
|
RU2178081C2 |
Authors
Dates
2005-11-20—Published
2004-04-23—Filed