TUNNEL DESIGN Russian patent published in 2002 - IPC

FIELD: construction engineering, particularly, designs of underground structures constructed under main traffic artery without interruption of its traffic under complicated mining and geological conditions with loose watered ground occurring under tunnel base, and forming its base. SUBSTANCE: tunnel structure includes lining consisting of trough, walls and roofing, exterior protective screen from long members and zone of ground solidified by injection made in form of reinforcing system from solidifying material, or from ground impregnated with said solidifying material. Reinforcing members are made in form of injection piles, and/or pear-shaped bodies, and/or mutually intersecting layers. In this case, at least, one part of pile caps, and/or pear- shaped bodies, or members located in caps cross the screen and are introduced into tunnel lining. Technical result ensured by claimed invention consists in increased reliability and safety of tunnel operation due to exclusion of settling of day surface, both, during tunnel construction and operation, with simultaneous reduction of settling of base grounds of tunnel constructed under main traffic artery without traffic interruption in it, under complicated mining and geological conditions with presence of strongly compressed peat loose and watered grounds in level of tunnel base, including strongly compressed peats underlied with loams of flowing consistency, with gravel layer under them and native ground occurring at large depth. EFFECT: higher efficiency. 22 cl, 23 dwg