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2 178 081

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C2

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IPC

(21) (22)

Application

2000109137/03, 2000-04-14

(24)

Start date

2000-04-14

(22)

Actual filing date

2000-04-14

(45)

Published

2002-01-10

(72)

Inventor

Gil'Shtejn S.R.Stogov S.N.Semenov A.N.Kulikov E.G.

(73)

Holder

Obshchestvo S Ogranichennoj Otvetstvennost'Ju Inzhiniring"

TUNNELING SHIELD Russian patent published in 2002 - IPC

Abstract RU 2178081 C2

FIELD: underground construction; applicable in construction of tunnels of various applications in various types of ground (hard, sandy, etc). SUBSTANCE: tunneling shield has a body with sealed partition, working member for ground excavation, shield hydraulic jacks, auger for withdrawal of excavated ground beyond the shield and located in immovable body, and auger drive. Located between auger and auger immovable body is tube movable in axial direction and whose cylindrical surface on side of working member for ground excavation has windows to pass the excavated ground. EFFECT: higher operating reliability and productivity, of shield in operations in hard ground. 1 dwg

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RU 2 178 081 C2

Authors

Gil'Shtejn S.R.

Stogov S.N.

Semenov A.N.

Kulikov E.G.

Dates

2002-01-10—Published

2000-04-14—Filed

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