LandOfFree - US Patents - Listing for Hydraulic and earth engineering,Underground passageway, e.g., tunnel

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Boring

Tail shield for a shield tunneling apparatus

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Boring

Tail structure of shield driving machine

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Vertical

Tamping rammer

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Boring

Telescopic double shield boring machine

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Cut and cover

Telescopic tunnel form

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel

Thermally insulated bulkhead for in situ oil shale retort

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel

Transportation systems and electric cables for use therein

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Subaqueous

Transportation underwater tunnel system

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Subaqueous

Transportation underwater tunnel system

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Vertical

Trapezoidal divider wall for use in shaft construction

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Lining

Travelling concreting device

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Lining

Tubbing ring for lining a tunnel

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Lining

Tubbing-type tunnel lining

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel

Tubular element for tunnel construction

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Lining

Tunnel barrier system and method of installing the same

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Boring

Tunnel boring machine

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Boring

Tunnel boring machine

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Boring

Tunnel boring machine

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Boring

Tunnel boring with foamed composition