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WO/2013/126688A1 |
A bearing plate and a nut and bolt arrangement for use as a rib or roof support for coal mines where the extracted coal is used for powder coal and has a specific gravity in the range of 1.5-1.9, preferably 1.7. The bearing plate has an ...
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WO/2013/110148A1 |
The present invention relates to a device used to mechanically enlarge the base of caissons, so as to form a semi-spherical cavity in the base of the caisson formed, in which said device includes a socket (11) in the upper extremity ther...
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WO/2013/111359A1 |
Sealing performance is improved in a sliding gap of a rotating valve (38), and the rotating valve (38) is rotated smoothly when a roller bit (31) is exchanged. A valve housing portion (35) is formed in a rear portion of a bit housing por...
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WO/2013/108025A2 |
Shutter panels (10) are assembled to form shutter rings la, lb that are connected end to end in a tunnel (2) to form a shutter (1), with an annular space between the tunnel (2) and the shutter (1). Strengthening rings inside the shutter ...
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WO/2013/104019A1 |
A combination tool (1 ) for inserting/spinning and tensioning a cable bolt comprising: an inner drive body (3) and an outer drive body (2), each drive body comprising a drive receptacle (5, 8) at one end, and the outer drive body (2) hav...
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WO/2013/105725A1 |
Disclosed is a high-energy pressure fit type of rock bolt. The high-energy pressure fit type of rock bolt which is disclosed comprises: a bent pipe on the inside of which is formed a fitting space, and which bends inwardly at equal inter...
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WO/2013/104021A1 |
An improved torque tensioning system for applying high load tension to a cable bolt of the type including a threaded sleeve, an anchor plate, a domed washer, and a tensioning nut, the system comprising a drive assembly including a housin...
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WO/2013/098444A1 |
The wedging system for transmitting loads from formwork to the surrounding earth comprises a supporting member (3), a threaded bar (2) for the transmission of vertical load, a nut (11), and a base (1) that in turn comprises a plate (9) w...
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WO/2013/098460A1 |
The invention relates to a method and a mining vehicle for post drilling insertion. A mining vehicle (1, 16) includes at least one boom (5b) provided with a post-drilling unit (17) for feeding an insertion object (26) into a pre-drilled ...
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WO/2013/098459A1 |
The invention relates to a method and arrangement for post drilling insertion. A mining vehicle (1, 16) includes at least one boom (5b) provided with an insertion unit (17) for feeding an insertion object (26) into a pre-drilled hole (7)...
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WO/2013/083185A1 |
The invention relates to a method for monitoring an automated sequence of movements of a mining shield which is used in underground mining, which has at least one skid and a canopy, and which is attached to a longwall conveyor by means o...
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WO/2013/084543A1 |
In the present invention, excavation soil that accumulates in an accumulation space provided at the front of an excavation device is discharged smoothly. A tunnel excavation device (1) comprises the following: an excavation mechanism (4)...
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WO/2013/078514A1 |
A grout delivery system (10) for delivery of grout to a downhole location within a borehole. The grout comprising a settable mixture of first and second flowable components. The grout delivery system (10) is adapted to be conveyed to the...
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WO/2013/081989A1 |
A drive pin mechanical fastener is disclosed and has an elongate body extending from a head. A frustoconical indicator shroud is disposed about the elongate body and has a first end and a second end. The first end of the indicator shroud...
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WO/2013/079548A1 |
The present invention relates to a leveling instrument (10) for guiding a tunnel-boring machine (1), including a reflective prism (11), having a known shape, and an angular sensor (12), said guide being characterized in that it includes ...
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WO/2013/077595A1 |
A seabed drilling and vertical shaft construction method according to an embodiment of the present invention comprises: a) fixing and installing a jack-up barge to arrange a casing at a dredging surface; b) installing a guide frame at on...
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WO/2013/073754A1 |
The present invention pertains to a tunnel excavation device, which includes an excavation head, a main body on which the excavation head is rotatively mounted, a motor provided in the main body and rotates the excavation head, and a con...
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WO/2013/069838A1 |
The present invention relates to a tunnel reinforcement structure capable of controlling ground displacement using pressurization, including: reinforcements adapted to be forcedly inserted into the bored holes formed along the outer surf...
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WO/2013/059911A1 |
The present invention provides a technique in undercut excavation that allows a continuous steel reinforced concrete floor to be set up or installed over a large width and length and installing continuous steel reinforced concrete floors...
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WO/2013/056450A1 |
Disclosed is a brushing apparatus for a shotcreting machine. The brushing apparatus comprises a first rotary drive member (30) and a rotating member (40) with one side connected to an output end of the first rotary drive member (30), and...
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WO/2013/056306A1 |
A shoring box system (10) for use in a ground trench (60) includes a pair of shoring panels (12) and a number of elongate props (22). The props are attached to the two shoring panels to maintain the panels in an erected position in which...
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WO/2013/057442A1 |
A large-diameter drilling device comprising a fixed body (2) and a tool (4) movable in rotation and translation in relation to said body (2), the fixed body (2) having radially-distributed holding cylinders (12) oriented towards the outs...
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WO/2013/057981A1 |
Provided is a process for simply improving the handleability of a thixotropic slurry in transportation and so on. A process for dewatering a slurry which has a thixotropic region, including a step of dewatering the slurry by pressure fil...
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WO/2013/054861A1 |
Provided is a fan to be set in a manhole opening through which the entrance or exit of workers or the carrying of articles in or out is easy. Provided is a sewer ventilation system using said fan. Provided is a fan, which comprises a rin...
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WO/2013/053604A1 |
A connection clip (10, 20, 36, 42) for connecting two wire mesh parts (32, 34, 41, 49) comprises two legs (11, 12) connected at one side to each other via a base section(13). The legs (11, 12) have each at their other side first hooks (1...
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WO/2013/053225A1 |
Disclosed is a rescue machine for tunnel collapses, comprising a cutting head (1) with a diameter-alteration function; a spiral conveyance shaft (2); a drive unit for rotation of the spiral conveyance shaft; a rescue cylinder (5); a prop...
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WO/2013/050010A2 |
A compact monitoring device (6) for monitoring the state of rotation of a disk cutter (5) of a shield tunnel boring machine is integrated into a clamping element (15) for fastening the disk cutter (5). A sensor module (33) of the monitor...
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WO/2013/048306A1 |
A device (1) for driving tunnels, galleries or the like including a cutting head (2), wherein an excavating direction of the cutting head (2) being essentially at a right angle to said rotation axis (R), a base unit (3) with stabilizing ...
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WO/2013/047025A1 |
A drill bit exchange device for a shield tunneling machine equipped with: a housing (33) in which a tunneling aperture part (34) is formed; a valve body (35), which is housed in a valve-housing chamber (36) formed in the housing (33), an...
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WO/2013/041449A1 |
The invention relates to a device (1) for lowering a heavy load support (2) of a support framework in the construction industry, characterized in that, of two components under load, arranged to be movable toward each other in the directi...
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WO/2013/037766A1 |
For a tubbing made of concrete for lining a tunnel, in particular a traffic tunnel, the tubbing has a convexly curved outer surface and a concavely curved inner surface opposite the outer surface and the tubbing is provided with a thermo...
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WO/2013/039315A2 |
The present invention enables each segment, in which two center through-paths and two end through-paths are formed, to be sequentially and adjacently arranged at each column in a vertical direction, wherein: horizontal segments at four c...
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WO/2013/033760A1 |
A tensionable cable bolt assembly (100) has a cable (110) longitudinally extending between a cable leading end (111) and a cable trailing end (112). A tensioning member (120) is mounted on the cable (110) toward the cable trailing end (1...
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WO/2013/028754A1 |
A reinforcement system includes an adapter, a friction bolt, a drilling rod coupled to the adapter, and a drill bit configured to drill an opening optimally sized for receiving the friction bolt. The drilling rod has a diameter that allo...
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WO/2013/012555A1 |
The invention relates to a pin handling device, for coupling and decoupling conveyor segments to and from a train of conveyor segments in high wall mining. The invention also provides a coupling pin for coupling conveyor segments in a tr...
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WO/2013/010206A1 |
A coal caving system (1) including a plurality of shields (3) with canopies (6) which are selectively operated to allow coal to cave onto a rear conveyor (37). In one aspect, the invention provides a shield control method including contr...
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WO/2013/005392A1 |
Provided is boring equipment having a large diameter cutter head and being capable of an efficient boring even if an object to be bored is hard ground or the like. The boring equipment includes: an outer circumferential cutter head (20) ...
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WO/2013/003971A1 |
The invention relates to a modular system for subterranean construction, comprising high-security means for installations, preferably of a nuclear plant, the system increasing the security levels the deeper it goes, and having improved s...
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WO/2013/005944A2 |
The present invention relates to a protective structure for the mouth of an unfinished tunnel, which comprises a structure in which a scaffolding protective structure installed for protecting workers and construction equipment from falli...
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WO/2013/002094A1 |
Provided is a method that is for designing a corrugated steel sheet and that is characterized by, when designing the corrugated shape of a corrugated steel sheet that configures a corrugated steel sheet pipe of tube diameter D comprising...
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WO/2013/002711A1 |
The present invention concerns a tubular rock bolt (1) that can be expanded by a pressurised medium, for insertion into a drilled hole (16) and comprising an extended tubular part (2) with a closed cross-section (12) and provided with a ...
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WO/2013/000237A1 |
Disclosed is a laser melting and coating method for a hydraulic upright post for mining, which comprises: forming a spiral scan along the surface of a moving pillar of the upright post body (1) by a laser beam and a nickel-based alloy po...
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WO/2012/174608A1 |
Some embodiments relate to a transporter for a boring rig, such as a raise-boring rig. The transporter comprises controls to control operation of the boring rig. Some specific embodiments relate to a mobile support system for a raise-bor...
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WO/2012/171056A1 |
A resin injection apparatus (19) for use in connection with a drilling apparatus (10) for installing ground anchors. The resin injection apparatus(19) comprises a fluid injector (20), adapted to be connected in fluid communication with a...
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WO/2012/171155A1 |
A constant-resistance and large deformation anchor cable and a constant-resistance device are provided. The constant-resistance and large deformation anchor cable comprises cables (7), an anchoring device (13), a loading plate (12) and c...
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WO/2012/167308A1 |
An improved method for installing a self-drilling rock bolt (10) as well as components and tools for use in the installation of such bolts is disclosed. The rock bolt (10) has a central bore (14), a drill bit (18) mounted at one distal e...
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WO/2012/162908A1 |
A method for preventing shield casing catching due to too large frictional resistance in earth pressure balance shield is provided. The method involves carrying out real-time monitoring to the earth voltage signal between the shield casi...
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WO/2012/162720A1 |
A coal caving system including a canopy for supporting a mine roof and a conveyor positioned beneath the canopy which also includes a rear canopy with a slider door for selectively caving coal onto the conveyor, the system further includ...
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WO/2012/166905A2 |
A tunneling apparatus includes a drill head and a steering shell. The drill head includes a main body having a distal end and an oppositely disposed proximal end. The steering shell is disposed at the distal end of the drill head and is ...
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WO/2012/155727A1 |
Disclosed in the present invention is a water conveyance tunnel with a prestressed composite lining for shield tunnel comprises an assembled segment ring which is formed by shield construction and is an ordinary reinforced concrete outer...
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