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Class Information
Number: 405/149
Name: Hydraulic and earth engineering > Underground passageway, e.g., tunnel > Cut and cover
Description: Method or apparatus relating to a tunnel constructed by excavating a trench into the earth, forming the tunnel cross section in the trench, and covering the trench.










Patents under this class:

Patent Number Title Of Patent Date Issued
8215869 Reinforced soil arch Jul. 10, 2012
7500807 Method of construction using sheet piling sections Mar. 10, 2009
7217064 Reinforcement of arch type structure with beveled/skewed ends May. 15, 2007
6874974 Reinforced soil arch Apr. 5, 2005
6795992 Bridge construction method Sep. 28, 2004
6619885 Telescopic tunnel form Sep. 16, 2003
6234716 Underground structural work including prefabricated elements associated with piles and a process for its production May. 22, 2001
6167916 Multi-purpose underground utility conduit system Jan. 2, 2001
6050746 Underground reinforced soil/metal structures Apr. 18, 2000
5678957 Method for underground excavation Oct. 21, 1997
5522676 Undercut excavation method Jun. 4, 1996
5281053 Underground tubular structural system and process for producing it Jan. 25, 1994
5207038 Reinforced earth structures and method of construction thereof May. 4, 1993
5199819 Semi-buried structure formed on a mountainside Apr. 6, 1993
5129760 Forming a passageway through the ground Jul. 14, 1992
5108671 Concrete formwork and method for forming a draft tube Apr. 28, 1992
5092710 Underground tubular structural system and process for producing it Mar. 3, 1992
5070672 Supports for building structures Dec. 10, 1991
5040921 Segmented tunnel system Aug. 20, 1991
5011331 Method and structural elements for construction underground garages Apr. 30, 1991
4983070 Prefabricated culvert system Jan. 8, 1991
4930937 Box culvert traveler for use with concrete forming systems Jun. 5, 1990
4907910 Roof structure for tunnel Mar. 13, 1990
4880334 Tunnel construction apparatus and method Nov. 14, 1989
4697955 Method of constructing reinforced concrete works such as underground galleries, road tunnels, et cetera; pre-fabricated contrete elements for constructing such works Oct. 6, 1987
4685829 Modular construction system for a covered structure Aug. 11, 1987
4648743 Method of producing a subterranean structure Mar. 10, 1987
4618283 Archway construction utilizing alternating reinforcing mats and fill layers Oct. 21, 1986
4150910 Construction of underground galleries Apr. 24, 1979
4073148 Precast element for the construction of trenched structures and the process related thereto Feb. 14, 1978
4008577 Cut and cover construction of subway with utility chamber and air conditioning with minimum street traffic disturbance Feb. 22, 1977
3999394 Precast ribbed arch subway structure and method Dec. 28, 1976











 
 
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