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| Number | Title | Issue Date |
| 7404694 | Method and device for stabilizing a cavity excavated in underground construction A compression body is inserted into the contraction joint between two tunnel lining elements, which body deforms in response to a compressive load caused by the tunnel lining elements moving towards each other. The compression body is composed of a material containi... | 07/29/2008 |
| 7267505 | Mine ventilation panel system A panel system for making mine ventilation structures. The panel system comprises a plurality of elongate metal panels having flanges along sides thereof configured for overlapping one another when the panels are placed in side-by-side relation. When the panels are ... | 09/11/2007 |
| 7232368 | Mine ventilation A mine air crossing includes opposite side walls and a deck extending from side wall to side wall. Each side wall includes a plurality of sections assembled side-by-side and interconnected by quick-connections. Similarly, each deck may include deck sections assemble... | 06/19/2007 |
| 7056064 | Block unit for repairing flow passage facilities and method of repairing flow passage facilities A block unit for repairing flow passage facilities is provided for permitting a desired repair operation. A method of repairing flow passage facilities using the block unit is also provided. The block unit includes an inner plate defining an inner surface, an outer ... | 06/06/2006 |
| 7025580 | Method and apparatus for lining a conduit Method and apparatus for installing a liner material into a host conduit such as, e.g., a sewer pipe, hydrocarbon pipeline, gas line, water line, industrial chemical pipe, or a saltwater line. The liner material may include a compression liner and/or a preliner that... | 04/11/2006 |
| 7018138 | Pier-repairing and reinforcing panel and method of repairing and reinforcing piers using such panels A pier-repairing and reinforcing panel is used in a method of repairing and reinforcing a pier. The panel includes locking members, locking ribs, reinforcing ribs, and clips. The method includes the steps of: installing a watertight caisson around a pier and removin... | 03/28/2006 |
| 7004679 | Easily-cuttable tunnel segment structure The present invention relates to a novel easily-cuttable tunnel segment structure used for the departure of a shield machine from a main tunnel to a branch tunnel or the return to the main tunnel from the branch tunnel, and provides an easily-cuttable tunnel segment... | 02/28/2006 |
| 6967045 | Integrated composite structural conduit formed in place A composite, chemically integrated material structure bearing load around a close-loop structural configuration in cross-section, has a plurality of regions through the cross-sectional thickness imparting at selectively predetermined locations within the cross-secti... | 11/22/2005 |
| 6953300 | Combining device for suspending object A combining device capable of being embedded into an object comprises: an embedding unit having a first end to be embedded into an embedded object and a second end having an elastic buckling means; a hollow coupling unit having an inner surface which is formed as a ... | 10/11/2005 |
| 6923600 | Method of repairing and reinforcing piers using stones A method of repairing and reinforcing a pier using stones. The method includes installing a watertight caisson around a pier and removing water from the gap between the caisson and pier prior to repairing the pier. The method can also include removing impurities fro... | 08/02/2005 |
| 6893188 | Continuous method of realization of works underground, tunnels and excavations in general with works of consolidation, permeabilization and drainage obtained through guided perforations Continuous method of realization of underground tunnels, including the steps of making a plurality of guided perforations of small cross-section around a periphery of an underground tunnel to be realized and extending at least a majority of length of the underground... | 05/17/2005 |
| 6669551 | Mine ventilation structure and deck panels therefor A mine ventilation structure with a deck made up of panels of inverted channel shape modified to be of relatively light weight yet strong.... | 12/30/2003 |
| 6616377 | Device for joining tunnel segments A coupler device for joining together two segments of a tunnel or shaft lining ring, the device being characterised by a double ended male dowel having an externally grooved cylindrical portion adjacent to both ends. This dowel engages in recesses cast in... | 09/09/2003 |
| 6379077 | Device for joining two concrete members together A device for joining two concrete members together, such as concrete tunnel or shaft lining segments (1, 2) includes at least one elastic female member (6) anchored in one of the segments and at least one elastic male member (7) anchored in the other of t... | 04/30/2002 |
| 6264549 | Mine ventilation A tunnel-forming overcast structure for incorporation in the installation of an overcast construction at the intersection of two intersecting passages in a mine, each passage constituting an airway for flow of air for mine ventilation having an upstream a... | 07/24/2001 |
| 6076995 | Segments One end of a circumferential joining end surface 2 of segments 1 which are joined together in the circumferential direction of an excavated tunnel is made the male side circumferential joining end surface 2a on which a male coupler 4 is provided, and the ... | 06/20/2000 |
| 5992118 | Segment for lining cavities A segment for lining cavities, in particular tunnels, includes a substantially shell-shaped body bounded by an inner face, an outer face and side faces, with at least one opening in a side face for the purpose of receiving a dowel. The opening being confi... | 11/30/1999 |
| 5938375 | Method of sealing joints between adjacent sheet piling sections to form a continuous barrier and barriers formed using said method A method and device for sealing the joint formed by the connection of adjacent sheet piling sections. Prior to installation in the ground, a housing having an open side is attached near the edge of a sheet piling section. A barrier is inserted between the... | 08/17/1999 |
| 5879231 | Mine ventilation structure A mine ventilation structure used to block a passageway or to prevent mixture of ventilation air at the intersection of two passageways. The passageway has sidewalls and a ceiling. The ventilation structure is formed of panels, each of the panels having s... | 03/09/1999 |
| 5749399 | End sections of connections for mineral wool conduits of the "Climaver Plus" type A shaping member for the finishing of junctions for "Climaver Plus" type glass wool piping comprising a unitary flat plate of bendable material which can be folded into sections to form a shape such that the shaping member can be placed at the junction of... | 05/12/1998 |
| 5634312 | Shear bolt connected structural units An apparatus is disclosed for joining structural units. A structural unit, such as a precast concrete section of pipe, decking, bridge structure, building structure, or pavement, includes a plurality of spaced, longitudinally aligned tubular members. The ... | 06/03/1997 |
| 5549416 | Device for joining two members together A device for joining two members together such as concrete segments for a tunnel lining ring includes a first sleeve for fitting in one of the members to open at a surface thereof and a second sleeve for fitting in the other member. A connecting pin with ... | 08/27/1996 |
| 5537794 | Shear bolt connected structural units An apparatus is disclosed for joining structural units. A structural unit, such as a precast concrete section of pipe, decking, bridge structure, building structure, or pavement, includes a plurality of spaced, longitudinally aligned tubular members. The ... | 07/23/1996 |
| 5472295 | Shield tunneling method using flexible segments, flexible segments for shield tunneling method, and flexible segments for secondary application of shield tunneling method A general segment 20 which is propelled and set in an excavated hole by a propulsion excavating machine, and a flexible segment where flexible members 4 and rigid ring members are alternately installed and connected inside the skin-plate 7 provided on the... | 12/05/1995 |
| 5466187 | Mine ventilation structure A mine ventilation structure for installation at the intersection of first and second passageways in a mine. The ventilation structure defines a first passage communicating with the first passageway and a second passage communicating with the second passa... | 11/14/1995 |
| 5412916 | Structure having quick-connect components A structure including at least two generally parallel, spaced-apart side walls, and a plurality of roof panels extending between the side walls for forming the roof of the structure. Each roof panel has opposite ends overlying the upper ends of respective... | 05/09/1995 |
| 5346332 | Tubbing-type tunnel lining A tubbing-type tunnel lining, which comprises a plurality of tubbing rings, each of which consists of an even number of tubbing blocks, which are similar or identical and have a trapezium-shaped or trapezoidal or diamond basic shape and are so arranged th... | 09/13/1994 |
| 5332334 | Tunnel wall with lining A tunnel wall with a lining is comprised of substantially trapeze- or trapezoid-shaped tubbing stones (8-13), which are at least similar and complement each other in an even number to form a respective tubbing ring (7), the tubbing stones being held toget... | 07/26/1994 |
| 5324139 | Method for the construction of long tunnel with a lining A new combination of means and method steps is used in a method of constructing long tunnels with a lining, wherein excavation is effected with a tunnel boring machine (1) with a yielding shield mantle (4), building is effected continuously under the prot... | 06/28/1994 |
| 5131789 | Mill hole liner ring connector assembly A connector assembly for use in fastening two plate members together, particularly such members may be mill hole liner ring segments or mill hole liner rings which are fastened together to form a mill hole chute. The connector assembly is comprised of a c... | 07/21/1992 |
| 5102263 | Method of renovating and/or protecting sewers and pipes A liner for large diameter pipes is formed from lengths of PVC panels (10) which are cut to length and placed around the wall of the pipe, the ends (19) of the panels being butt-joined by joining strips (20). Each panel (10) has a formation along one side... | 04/07/1992 |
| 5066167 | Prestressed concrete lining in a pressure tunnel The prestressed concrete lining has several reinforcement elements (32) distributed around the circumference and along the length of the pressure tunnel. There are prestressing elements (38, 39, 40, 41) which encompass at least a part of the circumference... | 11/19/1991 |
| 5035538 | Arcuate precast tunnel lining segments An arcuate tunnel lining segment includes a precast concrete body that is divided into two angularly adjoining segment parts by a compressible strip which runs the length of the segment and throughout the thickness thereof. The segment parts are held fast... | 07/30/1991 |
| 4991999 | Corrugated structural panels An improvement in corrugated structural panels, useful in the construction of tunnels, shoring, and other pressure bearing or containing structures, wherein the improvement comprises the utilization of a prism element transverse to the longitudinal axis o... | 02/12/1991 |
| 4863311 | Lining for bore holes in salt domes To store radioactive materials in bore holes of salt domes these bore holes are lined with superimposed tubular sections made of metallic material including in each case of an outer ring and an inner ring which are securely joined together by an intermedi... | 09/05/1989 |
| 4836714 | Enclosed structures of very large cross-section, such as conduits, silos or shelters Enclosing structures having tubular sections which are elliptical in cross-section, each section being an assembly of prefabricated components corresponding to a portion of the cross-section of the tubular section and including side components and a vault... | 06/06/1989 |
| 4834395 | Gasket seal An arcuate concrete section (13) for forming a tunnel has a groove (12) around its edges for accommodating a rectangular frame sealing ring (11) of moulded rubber for sealing adjacent sections (13) together. The sealing ring (11) has a section (FIG. 3) wi... | 05/30/1989 |
| 4830536 | Method and apparatus for tunnel lining A method and apparatus for tunnel lining is provided made up of arcuate liner segments having a formed body with two end walls and two substantially parallel sidewalls, at least two pins extending from one sidewall intermediate its length in the median pl... | 05/16/1989 |
| 4815895 | Construction of tunnels or pipes for use in civil engineering works A tunnel or pipe section which includes a plurality of panels which are connected together to form a closed tunnel or pipe section. Each panel includes a plurality of tubular connectors which are anchored within the panel, preferably to the reinforcing me... | 03/28/1989 |
| 4812084 | Tubbing ring for lining a tunnel A tubbing ring for lining a tunnel comprises end faces lying in respective planes, which preferably include an acute angle with each other. The tubbing ring comprises an even number of tubbing blocks, which have abutting longitudinal side faces that have ... | 03/14/1989 |
