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7387174 |
Device and method of lining a wellbore
A method of sealing the wall of a wellbore ( 1 ) as it is being drilled through a subterranean formation using a drill string ( 3 ) having a drill bit ( 4 ) on the lower end thereof comprises...
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7219750 |
Process and system for drilling and lining a bore hole
An apparatus is provided for the drilling of a borehole and its simultaneous lining with cement or the like by the same apparatus. The apparatus comprises a combination spray head and reamer head,...
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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...
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6955502 |
Method for repairing in-ground tunnel structures
A method for repairing in-ground tunnel structure involves applying a first curable resin over a cementitious liner which lines the interior wall surfaces of the tunnel, drilling drainage holes in...
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6948883 |
Sealing the junction region where a lateral pipe and a main pipe meet
A lining for sealing the junction region where a lateral pipe and a main pipe meet. It has a two-portion structure including a main portion for lining a portion of the main pipe and a lateral...
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6923597 |
Tail shield for a shield tunneling apparatus
Present in a tail shield ( 1 ) for a shield tunneling apparatus are a number of grouting lines ( 3 ) that are open to a tail shield end ( 4 ) and that can be supplied with filling material for...
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6793441 |
Tunnel waterproofing method
A tunnel waterproofing method comprises spraying a primary coating of concrete onto the excavation surface of a tunnel, installing thereon a waterproofing sheet having an adhesive layer operative...
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6652190 |
Method to install underground pipe casing
A method and apparatus for installing a pipe casing underground without a trench for distances up to 400 feet with pipe casing up to 168 inches in diameter. The system uses a modified high energy...
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6634828 |
Method for in situ renovation of a manhole, particularly a sewer manhole, and prefabricated liner therefore
There is described a method and a liner for in situ renovation of a sewer manhole, e.g., a transition well, where inside the well there is inserted a prefabricated liner in the shape of a glass...
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6595724 |
Tunnel excavating machine and excavating method
A tunnel excavating machine of high-speed construction capable of completely stopping invasion of water and allowing covering members to be assembled easily is provided. This tunnel excavating...
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6468000 |
Method and apparatus for feeding a tunnel roof support system from the roof shield of a TBM
A primary support for a tunnel roof comprising elongated lagging members which are “extruded” from tubes forming a shield for a tunnel boring machine. The lagging is inserted into the tubes at...
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6406220 |
Arched support structure
A support structure and method for forming same for use in excavations such as underpasses, tunnels and the like for roads, rail or rivers. The support structure allows the utilization of the...
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6382876 |
Method of repairing or reinforcing worn-out underground burried drainpipes by resin transfer molding process using both flexible tubes and bagging films
A method of repairing or reinforcing worn-out underground buried drainpipes by a resin transfer molding process using both flexible tubes and bagging films is disclosed. In the method of this...
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6375390 |
Method for widening road, superhighway or railway tunnels, without interrupting the traffic
A construction method for widening road, superhighway or railway tunnels, without interrupting the traffic flow includes a first stage of excavation; in steps, of the ground between the theoretical...
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6315496 |
Method of lining a tunnel and apparatus for performing the same
The present invention relates to a tunneling method starting from the working face in the driving direction, a bearing layer being laid as the working face progresses and then carried away together...
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6302621 |
Segment for intake tunnels
A segment 20 has segment units 22 obtained by dividing a cylindrical body having an appointed length into four sections along the circumferential direction. The segment units 22 are provided with a...
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6298920 |
Method and apparatus for removing a rigid liner from within a cylindrical cavity
A cylindrical cavity is continuously contacted while removing a rigid liner from within the cavity. The supporting apparatus includes a flexible liner insertable within the rigid liner, having an...
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6283209 |
Flexible liner system for borehole instrumentation and sampling
A flexible liner system provides for instrumentation and sampling within a cavity. An elongated flexible liner effectively contacts wall portions of the cavity when inflated within the cavity and...
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6244846 |
Pressure containment device for everting a flexible liner
A pressure containment device enables the installation of an everting liner without requiring a shipping container that can be pressurized. A pressure housing provides an inlet for receiving the...
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6210074 |
Material and method for lining pipes
A material and method is provided for lining man-entry sized pipes and securing the lining to the pipe. The lining comprises a plurality of adjacent, unplasticized polyvinyl chloride panel segments...
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6193439 |
Process for cladding substrates and constructions produced thereby
A construction for a partially-anchoring substrate, particularly a tunnel, comprises a sealing front layer applied to the substrate or an initial concrete layer applied thereto, and a...
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6109828 |
Horizontal drilling method
A bore hole support system is formed from a flexible liner that is readily everted within a bore hole and forms a bore hole support system to install a casing in the bore hole while supporting the...
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6082930 |
Shield driving machine
The present invention relates to a shield driving machine by which eliminates excessive work of the ground when working at a curved section while suppressing an increase of the sinking of the...
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5993114 |
Apparatus and method for pipeline renovation
A method of providing an internal lining in a pipeline. The method comprises inverting a tubular liner within said pipeline, said liner having a cementitious coating on a surface thereof. This...
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5846027 |
Semi-shield method and apparatus for the same
A semi-shield method is utilized to make it possible to advance pipes for an extremely long distance in the ground. In the method, a semi-shield machine and a plurality of advance pipes are pushed...
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5816345 |
Horizontal drilling apparatus
A bore hole support system is formed from a flexible liner that is readily everted within a bore hole and forms a bore hole support system to install a casing in the bore hole while supporting the...
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5807025 |
Process for lining a channel and fitting and withdrawal slide for implementing it
A method of lining a sewer in which an inner pipe is introduced into an eting sewer, and the space between the outer surface of the inner pipe and the inner surface of the sewer is filled with a...
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5803665 |
Method and apparatus for continuous production of quick-setting foamed cement grout with selectively adjustable proportions
A method and apparatus for continuous production of a quick-setting foamed cement grout, in which the individual constituents of the grout are proportionally adjustable. Finished foam and cement...
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5749678 |
Device for driving a tunnel or drain pipe
The invention relates to a device for driving a tunnel or drain pipe along a stretch (14) leading from a starting shaft (10) to a target shaft. The device is primarily intended for making micro or...
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5727904 |
System for testing a pipe
A rehabilitation system has been developed for cleaning, testing and slip lining pipe particularly sewer lines while in service. The system includes the use of equipment adapted for use on mobile...
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5725328 |
System and process for relining sewerage pipe sections
A system for and process of relining transport lines such as sewerage pipelines having an inner tubular thermoplastic inliner, a tubular thermoplastic preliner disposed within the pipeline to be...
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5709504 |
Pipe rehabilitation pulling mandrel
A rehabilitation system has been developed for cleaning, testing and slip lining pipe particularly sewer lines while in service. The system includes the use of equipment adapted for use on mobile...
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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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5653555 |
Multiple resin system for rehabilitating pipe
A method of lining a pipe conduit to provide superior corrosion resistance. A flexible lining hose, having a resin absorbent layer which has been introduced with a volume of high strength resin, is...
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5645375 |
Method and apparatus for grouting of tunnel liners
A method and apparatus for filling cavities in underground excavations. Sodium silicate and aqueous foam are mixed with cement slurry to produce a quick-setting foamed cement grout having a...
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5632575 |
Method and apparatus for controlled pumping of bentonite around a pipe jacked tunnel
An apparatus and method for selectively injecting a liquid bentonite slurry around an exterior of a tunnel liner segment which is pressed into a tunnel being concurrently excavated during a pipe...
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5582467 |
Displaceable working apparatus with extensible boom
A displaceable working apparatus provided with a platform having an extensible boom and being displaced on a guide rail is disclosed. The apparatus has a main frame secured to a main support which...
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5501548 |
Method for controlling the direction of a shield tunneling machine and an apparatus therefor
When a shield tunneling machine is deviated from the scheduled line while being propelled, the deviation of the shield tunneling machine from the scheduled line is detected and according to 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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5395472 |
Lining system and methods for installing plastic liners in a pipe
A method for installing plastic liners in pipes includes the steps of providing a plurality of cylindrical tubular liners of plastic material of predetermined diameters. Ribs extend radially...
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5388929 |
Method of renovating and/or protecting sewers or pipes
A method of renovating sewers or pipes where an elongate plastic strip (30) is spirally wound in the sewer or pipe, the strip having joint formations (32) along each side so that a joint formation...
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5382114 |
Tunnel excavation apparatus
A tunnel excavation apparatus comprises a frame mounted on crawler tracks and provided with pistons comprising stabilizer feet, a power unit, a working unit, and auxiliary movement and positioning...
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5346331 |
Shield tail sealing
The invention relates to a shield tail sealing (7) for driving shields consisting of a basic body (2) made of elastomeric material and having a substantially rectangular cross section in the...
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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...
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5322653 |
Method of repairing buried sewage pipes
A method of repairing a damaged (e.g., cracked) portion of a buried sewage pipe by permeating one or more layers of fibrous material with a hardenable plastic compound (such as epoxy resin),...
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5290125 |
Tunnel lining method and apparatus suitable for the purpose
In a tunnel lining method an apparatus, comprising at least one excavation tool of the chain, belt or band type or the like, is positioned to coincide with the longitudinal axis of the tunnel at a...
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5284403 |
Control method and control equipment for drilling apparatus
A method for controlling advancement of a drilling apparatus comprising a drill head having tools therein and at least one conveying tube is disclosed. The method utilizes changes in pressure...
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5269633 |
Tunnel shuttering
The invention relates to a tunnel shuttering, divided into two sections according to a dividing line lying in the plane of the horizontal panel of the shuttering and extending in the longitudinal...
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5269628 |
Device for opening and supporting a headway
A device for opening and supporting a headway in closed or open excavations comprises an envelope composed of blade- carrying heads (24) which can be driven individually or in groups, each...
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5267814 |
Mechanism and method for continuously constructing reinforced concrete tunnel
A mechanism for continuously constructing reinforced concrete tunnels is shown, which comprises a ring-like blade body having a rearwardly tapered inner surface like an earthenware mortar, a...
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