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Class Information
Number: 405/145
Name: Hydraulic and earth engineering > Underground passageway, e.g., tunnel > Boring > Shield > Discrete independently advanceable earth supporting segments
Description: Method or apparatus wherein each of a plurality of separate soil-sustaining sections is individually moved forward.

Patents under this class:

Patent Number Title Of Patent Date Issued
8439132 Microtunnelling system and apparatus May. 14, 2013
8151906 Microtunnelling system and apparatus Apr. 10, 2012
6939082 Subea pipeline blockage remediation method Sep. 6, 2005
6652190 Method to install underground pipe casing Nov. 25, 2003
6505892 Softwall mining method and device Jan. 14, 2003
6302621 Segment for intake tunnels Oct. 16, 2001
5284404 Moving steel form system Feb. 8, 1994
5269628 Device for opening and supporting a headway Dec. 14, 1993
5174683 Telescopic double shield boring machine Dec. 29, 1992
5152638 Process and apparatus for excavating tunnels Oct. 6, 1992
5129764 Device to feed reinforcement rods Jul. 14, 1992
5090844 Plant for digging and shoring up the walls of tunnels during excavation Feb. 25, 1992
4966494 Low load pipe for pipe jacking Oct. 30, 1990
4856936 Form for concrete-placement tunnel lining Aug. 15, 1989
4830535 Knife shield driving device and method for the excavating and/or final supporting of galleries or the like May. 16, 1989
4808030 Shield tunneling method and assembling and disassembling apparatus for use in practicing the method Feb. 28, 1989
4557627 Apparatus and method for tunnel construction with shield drive Dec. 10, 1985
4482270 Drive shields for tunnel-driving apparatus Nov. 13, 1984
4474494 Tunnel drive shield Oct. 2, 1984
4459064 Elongated underground construction having a uniform section and method of building this construction Jul. 10, 1984
4439063 Hydraulic control means Mar. 27, 1984
4412758 Hydraulic control means Nov. 1, 1983
4398845 Tunnel driving apparatus Aug. 16, 1983
4355924 Tunnel-driving apparatus Oct. 26, 1982
4334800 Tunnel drive shield Jun. 15, 1982
4332508 Shield for tunneling and mining Jun. 1, 1982
4305684 Method of and apparatus for horizontally and vertically guiding a cutter drive shield Dec. 15, 1981
4265565 Tunnel drive shield May. 5, 1981
4252463 Tunnel driving apparatus Feb. 24, 1981
4224004 Knife shield Sep. 23, 1980
4192632 Support systems for mineral mining installations Mar. 11, 1980
4178111 Apparatus for the excavation of subterranean tunnels Dec. 11, 1979
4155668 Sealing means for the drive members of drive shields May. 22, 1979
4143519 Drive shield Mar. 13, 1979
4120165 Methods of and apparatus for driving tunnels Oct. 17, 1978
4118938 Apparatus for and method of driving tunnels Oct. 10, 1978
4112696 Drive shield Sep. 12, 1978
4095436 Method of, and apparatus for, controlling the advance of a tunnel drive shield Jun. 20, 1978
4094152 Apparatus for laying a pipe line Jun. 13, 1978
4084386 Apparatus for and a method of tunnelling Apr. 18, 1978
4063425 Tunnel driving apparatus Dec. 20, 1977
4055959 Apparatus for use in mining or tunnelling installations Nov. 1, 1977
4048806 Apparatus for, and a method of, driving tunnels Sep. 20, 1977
3998067 Continuous shoring machines for tunnel construction Dec. 21, 1976

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