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7156124 |
Segment for rehabilitating an existing pipe and a rehabilitating pipe assembled using segments
A segment for rehabilitating an existing pipe has an integral structure comprised of an inner plate having an inner circumferential surface that is planar or curved with a prescribed curvature, two...
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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...
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6612585 |
Elastomeric strand-shaped sealing profile
An elastomeric strand-shaped sealing profile including at least one continuous transverse beam located in a region between the base and rear side surfaces of the profile and having two sidewise...
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6592296 |
Sealing assembly for tunnel construction sections
A sealing assembly comprising two abutting components and a sealing profile produced from an elastomeric material, which bridges the gap between the two components to form a seal. The components...
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6575664 |
Sealing arrangement
A sealing arrangement which comprises at least two abutting components that form a gap therebetween and a seal that sealingly bridges the gap. The inventive sealing arrangement is characterized in...
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6554536 |
Linings for sewers
During manufacture of a sewer or tunnel lining section, sand-resin material is deposited over a mould, to define a central part of the section. Sand-resin material is removed using a wire arranged...
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6540438 |
Inflatable underground structure liner
The apparatus is an underground structure liner based upon an inflatable liner structure. An acid resistant layer is the innermost layer of an inflatable liner, and the liner is coated with epoxy...
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6402611 |
Hinged mine stopping
The hinged mine stopping has at least two panels joined by a hinge defining a wall adapted for forming an air tight seal in a mine passageway to improve mine ventilation. Each panel has a lower...
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6328501 |
Method of manufacturing a tunnel or shaft lining or pipeline
A method of manufacturing a tunnel (10) or shaft lining or pipeline of segments (12), wherein each segment (12) comprises a concrete body (11) having an extrados (13) surface, an intrados (14)...
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6267536 |
Sealing arrangement for tunnel segments
A sealing arrangement (1) has two abutting construction elements made of concrete, steel, reinforced concrete, cast iron or other materials, as well as a sealing section made of an elastomer...
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6220787 |
Ship type floating oil production system
A ship type floating oil production system for access to subsea wells through installation of surface wellheads on a ship type surface vessel on the sea comprises a cylindrical turret moored to a...
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6164871 |
Mine stopping having a swinging door
A mine stopping comprising a wall extending across a passageway in a mine to close the passageway. The wall has an opening therein. A door is hinged adjacent the opening for swinging between a...
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6129485 |
Seal and process for producing such seal
The invention relates to a seal between a side face of a first part (11) and an application face (10), the seal being made of a compressible profiled lining (1) and being comprised of an internal...
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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...
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5888023 |
Seal arrangement for tubular tunnel segments
The invention relates to a seal arrangement consisting of two abutting structures of concrete, steel, reinforced concrete, cast iron or other materials and a sealing section of elastomeric material...
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5870871 |
Sump liner and method of installation
This invention includes repair of an existing underground sump without the need for costly and time consuming excavation. A plurality of liner-forming pieces are placed inside the underground sump...
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5660912 |
Plastic profiled strip forming helically wound tube using hinged flap for jointing
A plastic profiled strip (10) is provided for producing helically wound tubes or pipes, the strip (10) having female and male joint formations (13, 14) extending along opposite longitudinal margins...
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5660501 |
Corner area for tubbing seals
A corner area has a corner piece which is inserted between two ends of the sealing profile strip of a sealing structure and is joined thereto. To facilitate the deformability of the corner piece...
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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...
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5613806 |
Sealing system for sewer and water applications
A method and article for sealing a manhole riser a catch basin, and a pipe juncture. The method is an economical process whereby elastomeric bands are placed around and inside a manhole riser, a...
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5489164 |
Method of connection
The invention relates to a constructional element such as a tunnel lining, part of which is shown in the drawing, comprising adjacent segments which have facing surfaces between which there is a...
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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...
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5470178 |
Insulating tunnel liner system
An insulating liner system especially adapted to railroad and highway tunnels to eliminate ice buildup on the tunnel crown, walls and roadbed caused by water leakage from the tunnel face. The...
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5466093 |
Method and apparatus for removing contaminants from a duct or pipe
Contaminants are removed from the interior or a duct by the introduction within the duct of a tube having a coating of a curable, strippable resin using an everting/inverting membrane assembly. The...
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5452558 |
Method for permanently repairing and sealing roofs
A method is disclosed for permanently repairing roofs using a colloidal clay such as sodium montmorillonite (commonly called bentonite). A layer of particles of the colloidal clay is spread on the...
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5439319 |
Tunnel barrier system and method of installing the same
A tunnel barrier system for lining the interior surface of a tunnel cavity includes a first panel in facing engagement with and affixed to a first impermeable membrane. A second panel is in facing...
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5108671 |
Concrete formwork and method for forming a draft tube
A formwork for a draft tube which includes ganged precast forms, each precast form corresponding to a curved segment of the draft tube. The precast forms are molded with continuous side plates...
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5074711 |
Profiled seal for tunnel segments
A profiled seal for use in tunnel segments and comprising cut out grooves along the bottom of the seal; channels along the upper part of the seal; lateral faces and spreading feet for the seal;...
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5044823 |
Relating to seals
A gap between tunnel segments 1 is sealed by rubber sealing members 8 that are provided with grooves 10 and tubular cavities 11. To improve sealing when a high pressure is applied to one side of...
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5040921 |
Segmented tunnel system
The disclosed invention comprises novel prefabricated tunnel sections comprising generally open channel configured, reinforced concrete, opposing lower and upper channel members with mating...
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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...
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4946309 |
Sealing profile
A sealing profile made of rubber or rubber-like material for installation in a recess extending around concrete segments for a tunnel tube. The profile has on the base side a plurality of parallel...
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4889448 |
Tunnel construction
A method of construction of tunnels under water by pre-fabricating them in short sections with their ends adapted to make fluid-tight joints with adjacent sections, transporting, sinking and...
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4824289 |
Sealing profile for tunnel segments
There is provided a sealing profile formed of rubber or rubber-like material for tunnel segments having a recess therefor extending therearound, the profile having a base side facing the segment...
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4730427 |
Shuttering and shoring wall
The invention relates to the construction of tunnels. Its subject is a shuttering and shoring wall formed by joining end to end sections (1) which each consists of at least two section parts (2, 3,...
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4662773 |
Segmental tunnel lining consisting of reinforced concrete tubbings
Segmental tunnel lining for tunnels, galleries and similar underground works, in which individual tubbings, made of reinforced concrete, are braced, in use, with each other both in annular or...
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4655638 |
Waterstop for monolith joints and method
A tubular member is arranged to be inserted in a hole drilled in adjacent monoliths astraddle a joint between the monoliths. The tubular member comprises an outer layer of material saturated with a...
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4626133 |
Waterstop for monolith joints
A tubular member is arranged to be inserted in a hole drilled in adjacent monoliths astraddle a joint between the monoliths. A tubular member comprises an outer layer of material saturated with a...
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4497590 |
Tunnel lining
A prefabricated tunnel lining is disclosed comprised of a plurality of interconnected longitudinally abutting rings, each ring being comprised of a plurality of interconnected ring sections. The...
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4477204 |
Cast concrete element for underground tubular structure
A modular cast concrete element of this invention, capable of being assembled with other, similar elements into a tubular underground installation (e.g., sewer duct, tunnel liner) has a well...
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4363565 |
Tunnelling
The invention is concerned with a method of constructing a lined tunnel using a tunnelling shield having a tall skin and in which the tunnel lining is of the expanded type comprising a number of...
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4247221 |
Process for lining tunnels
Plastic hose means, preferably of high pressure polyethylene admixed with a flame retarding agent and treated to render the same antistatic and characterized by a resistance to tearing of at least...
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4199158 |
Profiled gasket for sealing tunnel segment joints
Profiled gasket for sealing tunnel segment joints, which is placed in a receiving groove in this segment and which is made of a body of rubber or an elastically deformable synthetic material, said...
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4075855 |
Tunnel construction and tunnel tubbing
A tunnel construction made of tubbings forming a lining or casing for a tunnel includes a plurality of contact points between adjacent tubbings. These contact points comprise adhesive material...
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4072021 |
Method of driving and forming a tunnel with hydraulic boring machine
A tunnel driving and forming method with hydraulic boring machine through mixed ground of stable and unstable layers which is simplified in equipments, less in air contamination and noises and high...
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4070866 |
Tunnel liners and methods of making the same
A tunnel liner and segment are provided for simplifying changes in direction. The segment comprises a pair of liner plates each having a curved elongated skin with spaced parallel dependent...
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3886752 |
Prefabricated element for wall construction
An element for use in manufacturing a fluid-tight wall comprising a body of concrete with an impermeable sheet metal member extending through the body to the lateral edges thereof. In manufacturing...
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3868825 |
APPARATUS FOR WORKING FROZEN GROUND
Frozen ground is thawed for trenching by placing an open-bottomed duct over the area to be trenched, and by causing hot air to flow unidirectionally through and along the length of the duct in...
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3861154 |
TUNNELLING
A lining for a tunnel, shaft or the like comprising a series of rings joined in end-to-end relation wherein each ring comprises a plurality of segmental blocks connected together in side-by-side...
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3859802 |
GASKETED WATERTIGHT SEGMENTED TUNNEL LININGS
A segmented primary tunnel lining is provided having longitudinal and circumferential bolted joints in which an elastic gasket is placed between corresponding jointed flanges of the circumferential...
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