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WO/2012/020447A1 |
Provided is a device for laying synthetic resin pipe underground along a curve that can stably lay pipes along a curve and propel pipes over long distances by using a pipe-jacking method that directly lays synthetic resin pipe undergroun...
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WO/2012/021588A2 |
A cable bolt includes a cable having a first end and a second end, and a barrel and wedge assembly attached to the cable at a position adjacent to the first end of the cable. The barrel and wedge assembly has a first end and a second end...
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WO/2012/018882A1 |
An underground boring machine includes a vehicle frame, a boom, and a boring cutter head. The boom includes a first end coupled to the vehicle frame and a second end. The boring cutter head includes a rotary joint, a first arm, and a sec...
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WO/2012/016272A1 |
A prop, for example for supporting the roof of an underground mine, is provided in the form of a vessel. The vessel includes a base having a bottom and one or more sides. A cover, including a top and one or more sides is provided. The to...
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WO/2012/016028A2 |
A method for designing and fabricating a mine seal includes determining an initial thickness for a mine seal based on a predetermined underground opening, developing and solving a numerical model for response of the mine seal upon applic...
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WO/2012/013968A2 |
The invention provides kit comprising a rock anchor having a static mixer and a two part resin system wherein a first part of the resin system comprises an isocyanate and a second part of the resin system comprises a silicate; a rock anc...
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WO/2012/015349A1 |
A rock bolt (10) comprising an elongate shaft (11), and an anchoring device attached to the shaft having an expansion mechanism (15) which is operable to expand radially relative to the lengthwise extent of the shaft (11) to anchor the r...
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WO/2012/000016A1 |
A cable bolt assembly (400) including a cable (410) extending along the longitudinal axis L. The assembly (400) further includes a post-grouting apparatus (411) comprising (a) a load bearing grout delivery fitting (413) having a leading ...
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WO/2011/163449A1 |
Embodiments of the present invention comprise hot-rolled threaded rebar bolts that are less costly to manufacture but maintain the same or similar structural benefits of more costly manufactured bolts presently in use. One embodiment of ...
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WO/2011/157850A2 |
The invention relates to a tension anchor (1) made of fiber-reinforced plastic material, comprising an anchor rod (2) which consists of fiber-reinforced plastic material and at least on a sub-region comprises an anchor thread (6), an anc...
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WO/2011/153810A1 |
A constant resistance and large deformation anchor rod comprises a rod body (6), a tray (3), a nut (2) and a constant resistance device (4). The constant resistance device (4) is formed into a cylindrical structure, and the inner surface...
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WO/2011/156450A2 |
A strata support system that provides support and balance to a rock mass and reacts to movement of the rock mass. The strata support system includes a borehole that is drilled into a surface of the rock mass. A resin is disposed in the b...
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WO/2011/153985A2 |
The invention relates to a control device for an extracting unit in the face of a mine, for actuating the hydraulic actuator in the sense of drawing, stepping, setting, and having a plurality of main valves for connecting the actuator of...
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WO/2011/153219A1 |
The present invention includes a rock bolt having a longitudinally expandable tube. The tube includes a longitudinally extending depression that defines a temporary enclosed longitudinal passageway. The rock bolt further includes a shiel...
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WO/2011/151687A1 |
A grout pack [1] restraining envelope is provided which includes a plurality of restraining rings [7, 8] shaped to extend circumferentially around a grout bag [2] in a vertically spaced arrangement up at least a part of the height of the...
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WO/2011/148871A1 |
Disclosed is a cylindrical excavation apparatus which has an annular cutter section that is driven into rotation. This cylindrical excavation apparatus is such that it is possible to transport excavated dirt in large quantities, and that...
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WO/2011/149420A1 |
The invention concerns a rock bolt intended to be inserted and fixed in a drill hole (2) by being embedded in grout (4), and comprising an anchor rod (5) formed as an extended cylindrical solid part of ribbed steel type with radially pro...
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WO/2011/144223A1 |
Face equipment for mechanized longwall mining, in particular underground coal mining, comprising a face conveyor which is arranged along the working face, a mining means which can travel along the face conveyor, and shield support units ...
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WO/2011/145396A1 |
Provided is a tunneling machine which is used to lay a propulsion pipe underground. This tunneling machine is such that a front body comprises a speed reducer with a motor integrated together, and that the main body comprises a direction...
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WO/2011/144776A1 |
The invention relates to an incremental tunnel that is built with successive tunnel sections that can vary from 10 to 30 meters in length and have the shape required by the project, and that once inserted in the ground, will form the cem...
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WO/2011/140928A1 |
A composite bridge or a composite tunnel for right-hand traffic composed of four 'T'-shaped units is provided. The composite bridge is composed of four independent bifurcation arch bridges and used for an smooth driving on bridges in a c...
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WO/2011/140932A1 |
A composite bridge or composite tunnel for left-hand traffic is composed of four independent Y-shaped arch bridges or tunnels, wherein each bifurcated arch bridge comprises a straight going arch bridge (2) and a right-turn bridge (3) loc...
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WO/2011/140926A1 |
A composite bridge or composite tunnel for left-hand traffic is composed of two independent Y-shaped bridges or tunnels, wherein a right-turn bridge (3) is located at the right side of a straight going arch bridge (2) so as to form a Y-s...
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WO/2011/140925A1 |
A composite bridge or a composite tunnel for right-hand traffic composed of two 'T'-shaped units is composed of two independent bifurcation bridges or tunnels and used for a non-crossing driving of opposite straight going and left turn v...
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WO/2011/136656A1 |
The invention relates to a thin, flexible membrane (12) particularly suitable for fastening to a wall (11) and/or a roof in a tunnel (10) by means of fastening devices (22), such as bolts, plugs or the like. The membrane (12) is formed w...
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WO/2011/135597A1 |
The present invention concerns a reinforcing element for consolidating a tunnel excavation wall. The reinforcing element comprises a longitudinal bar, a load distribution plate and clamping means for constraining said plate against the o...
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WO/2011/133096A1 |
The following invention relates to a device for sealing a rock wall, which device comprises an injection tube adapted to be introduced into a bore hole in the rock wall, into which bore hole a filling material is intended to be injected ...
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WO/2011/133798A1 |
A support for use in mines and other underground workings is provided comprising a flexible inflatable bag configured for receiving a pumpable load-bearing material. A reinforcing material is provided for supporting the bag when the bag ...
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WO/2011/130389A2 |
The present invention generally relates to the field of laser treatment of tissue, and particularly, to a system and method for creating microablated channels in skin. The present invention is more particularly directed to treating subsu...
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WO/2011/129841A1 |
A drill rod is disclosed. The drill rod includes a casing assembly defining a length that extends axially between a first end and an opposite second end of the drill rod, and a drive shaft rotatably mounted within the casing assembly. Th...
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WO/2011/121155A1 |
Metropolitan transport system and method that makes it possible to maximise fulfilment of journey time commitments and network coverage by running a first train (1) in a first direction, defined from a starting point to a finishing point...
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WO/2011/116918A2 |
The invention relates to a method for the retroactive strengthening of a fastening means inserted into a drilled hole, which fastening means is already in its mounted state, having the following steps: • mounting an injection washer, w...
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WO/2011/118925A1 |
The present invention relates to an anchor structure for preventing a steel wire from being twisted, and more particularly, to an anchor structure in which: a steel wire coupled to an anchor is protected by an inner member, a spacer, and...
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WO/2011/115610A1 |
The present disclosure relates to a drilling apparatus including a cutting unit defining at least one through-hole that provides fluid communication between a distal side and a proximal side of the cutting unit. The cutting unit includes...
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WO/2011/114507A1 |
Provided is a method of constructing an underground structure to be newly built, such that a reduction is made in load burdens which are imposed, in relation to an existing underground building frame, on an underground building frame to ...
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WO/2011/113131A1 |
A yielding spiral bolt appendage for attachment to a rock bolt has a cylindrical shank portion for attachment to the insertion end of the rock and a helical flute portion having a tip for rupturing a resin cartridge and achieving mixing ...
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WO/2011/116148A2 |
A system, apparatus and method for hydrocarbon extraction from organic materials, such as oil shale, coal, lignite, tar sands, animal waste and biomass, which may be characterized generally as feedstock ore. A retort system including at ...
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WO/2011/107818A1 |
The invention relates to a method of cutting a foundation element (1 ) in the ground, characterised in that it comprises the steps of: (a) drilling at least two borings (B1, B2) in the ground around the foundation element (1 ), (b) wire ...
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WO/2011/107955A1 |
Method for acquisition and processing of seismic signals during tunnel boring that envisages the use of a plurality of pilot sensors (P1, P2, etc.) suitably distributed on the head of the boring machine for the purpose of identifying as ...
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WO/2011/104441A1 |
The invention relates to a rock drilling rig, a method for rock drilling and a control system of a rock drilling rig. The rock drilling rig (1) comprises a drilling unit (6) for drilling drill holes (21) as a drill hole pattern. The loca...
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WO/2011/104440A1 |
The invention relates to a method of presenting positioning information on a drilling unit of a rock drilling rig when drilling drill holes as a fan-like pattern. Further, the invention relates to a user interface and a rock drilling rig...
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WO/2011/105342A1 |
Provided is a jacking pipe cushioning material that exhibits a superior stress-dispersion effect and is easy to position. The jacking pipe cushioning material (20) (cushioning material pieces (20a)) is a ring-shaped plate member comprisi...
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WO/2011/103937A2 |
The invention relates to a reinforcing and/or anchoring screw (1) for using in mining and/or tunnel construction and for screwing into bedrock (7), said screw comprising a screw head (2), a screw end (3), a screw shaft (4) and a thread (...
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WO/2011/101716A2 |
The present invention provides a device useful for supporting underground mine/ tunnels. The device continuously monitors the roof load coming over the canopy and correspondingly yielding/convergence indicated by the pointer on graduate ...
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WO/2011/098748A2 |
A structural reinforcement device, the device comprising a frame having a longitudinal axis, at least a portion of the said longitudinal axis being generally arcuate, the frame comprising a plurality of laterally spaced longitudinal rods...
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WO/2011/098747A2 |
A structural reinforcement device, the device comprising a frame having a longitudinal axis, at least a portion of the said longitudinal axis being generally arcuate, the frame comprising a plurality of laterally spaced longitudinal rods...
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WO/2011/097201A2 |
A liner plate structure, system and method is provided for lining of mine shaft bores, tunnels and the like. The liner plate structure includes a primary plate portion and at least one flange disposed at a side edge of the primary plate ...
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WO/2011/093777A1 |
Method and rig for driving tunnels, galleries, shafts or the like said rig having a movable base unit (2) which over a support unit supports a carrying unit which in turn carries a cutting head having outwardly directed cutting elements,...
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WO/2011/092964A1 |
Provided is a bit-replacing device for an excavator, in which the sealing property in a sliding clearance of a rotor is improved and the rotor is smoothly rotated during replacement, and in which the sealing property in a sliding clearan...
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WO/2011/092331A2 |
The present invention relates to a rib for supporting and reinforcing an excavation. The invention also relates to a structure and to a method for supporting and reinforcing an excavation. The rib according to the invention comprises at ...
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