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WO/2021/088349A1 |
A method for excavating a tunnel shaft (1), by drilling a number of holes I (2) with smaller diameters, it is possible to predict groundwater and bad geology etc. in advance, which is convenient for confirming the degree of coincidence o...
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WO/2021/088717A1 |
A hanging structure, used for hanging a rail (10) onto tunnel segments (20). There are multiple tunnel segments (20). Two adjacent tunnel segments (20) are connected by means of a fastening assembly. The hanging structure comprises a fir...
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WO/2021/082839A1 |
Disclosed is an NPR anchor rod, the NPR anchor rod comprising a rod body (1), a tray (2), and a lockset (3), wherein the rod body (1) is of an NPR spiral steel bar, multiple protruding spiral ribs are arranged on an outer surface of the ...
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WO/2021/083039A1 |
An aqueous medium guarantee system (200) for a coal face. An aqueous medium is used as a working medium. The system comprises: a working medium use mechanism (209); a working medium storage mechanism (205), the working medium storage mec...
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WO/2021/086782A1 |
An anchoring system for anchoring a post to a concrete body, such as a post for a basketball goal, includes a template for alignment of anchor bolts, which can be J-bolts. The template includes a plate with openings corresponding to open...
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WO/2021/082410A1 |
Disclosed are a supporting structure for preventing a roadway floor from heaving. The structure comprises a square groove (12) excavated in a bottom plate (4); a plurality of drill holes (8) are provided in the square groove (12), an end...
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WO/2021/082843A1 |
A weak stratum (9)-based reinforcement method for a shield tunnel covered by shallow soil, comprising the following steps: S1, reinforcing a stratum (9) using triple-tube high-pressure jet grouting piles, wherein the reinforcement range ...
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WO/2021/082409A1 |
Disclosed is a U-shaped steel support frame. The U-shaped steel support frame comprises a beam (1) and two supports (4) provided on two ends of the beam (1). The supports (4) are connected to the two ends of the beam (1) by means of conn...
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WO/2021/083038A1 |
Disclosed is a rapid support moving system for an aqueous medium hydraulic support, the system comprising: an integrated liquid supply subsystem; a hydraulic support subsystem, which is connected to the integrated liquid supply subsystem...
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WO/2021/081399A1 |
A housing mount assembly for supporting a roller cutter is described. The housing mount assembly comprises a housing mount defining an outer surface for attaching to a housing and a profiled inner surface extending away from the outer su...
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WO/2021/077692A1 |
A tunneling, supporting and anchoring all-in-one machine system capable of implementing underground speedy drivage and a use method thereof. The all-in-one machine system comprises a longitudinal axis type tunneling machine body (1), whe...
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WO/2021/078195A1 |
A monitoring meter (4) installing device and installing method. The monitoring meter (4) installing device comprises: a main pipe (1), the main pipe (1) comprising a main body sluice valve (13), a first pipe body (11) adapted to be conne...
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WO/2021/077693A1 |
Disclosed is a detection, tunneling, supporting, anchoring and transporting integrated machine system for underground rapid tunneling. The integrated machine system comprises: a longitudinal-shaft-type tunneling machine body (1), wherein...
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WO/2021/079014A1 |
A device for measuring and monitoring the surfaces of cavities, and process for using the same, to improve the projection of the deviations measured. The device comprises a housing in which are disposed at least three prisms, means for t...
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WO/2021/072560A1 |
Structural plates and methods of constructing arch-shaped structures using structural plates. Structural plates may include a combination of features including: an outer structural plate having adjacent circumferential apertures respecti...
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WO/2021/074101A1 |
The invention relates to a control fitting (10) having a two-way cross-fitting, which has an inlet connecting piece (16), an outlet connecting piece (18) and a passage connecting piece (20), and having a control element (22) which is arr...
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WO/2021/062483A1 |
A liquid hammer drill comprising: a housing; a drill bit at a leading end of said housing wherein said drill bit includes a trailing end and a leading end that defines a cutting portion; a piston member located inside said housing and ha...
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WO/2021/058817A1 |
An apparatus, rock drilling rig, method and computer program for executing navigation for a rock drilling rig in a mine tunnel. The rock drilling rig (5) is positioned at faces (9) of rounds (8) and is navigated before initiating drillin...
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WO/2021/056959A1 |
A communication tunnel boring machine comprises a pipe section crane trolley (3). A pipe section conveying device (1) is provided on one side of the pipe section crane trolley. A rear supporting system is provided on the other side of th...
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WO/2021/061043A1 |
Reinforcement of a volume of rock by pre-bolting, comprising: providing a top hammer drilling machine (1, 6) for automatic feed of and drilling with a plurality of drilling modules (2, 3), initially loading (12) the top hammer drilling m...
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WO/2021/056062A1 |
A drilling and bolting dolly driving a drill rod in a first phase of a rock bolting operation and driving a nut of a rock bolt in a second phase of the rock bolting operation. In a preferred form, the dolly is adapted for engagement with...
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WO/2021/051474A1 |
A wet-type stirring and guniting all-in-one machine, comprising a driving device, a vertical stirring device A (100) and a vertical stirring device B (200) of the same structure, a slurry air conveying pipe (19), a control system (28), a...
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WO/2021/052192A1 |
A high stress rock burst roadway bolt, comprising a sectional bolt rod body (1), a bolt tail lock, a force transmission tray (3) and a sleeve (4). The sectional bolt rod body is provided with protrusions at intervals, and the tail end of...
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WO/2021/047748A1 |
A connection device (1) for suspending a monorail beam, wherein the connection device (1) comprises a top anchor (2) integrated with a roof bolt or attachable to a roof bolt, wherein the connection device (1) comprises a clamping device ...
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WO/2021/047328A1 |
A method for determining the maximum strain for wellbore instability breakage, comprising the following steps: (1) constructing a simulation calculation model to calculate the plastic limit strain of a rock mass; (2) constructing a refin...
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WO/2021/045722A1 |
A system for mining material in an underground tunnel, comprises a rail on the roof of the tunnel. A tram is supported on the rail and is movable along the rail. The tram has a conveyor for moving material along the length of the tram. M...
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WO/2021/044629A1 |
An image processing system (1) is provided with: an image division unit (12); an image extraction unit (13); and an equipment image identification unit (15). The image division unit (12) divides an image of a structure including an image...
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WO/2021/045751A1 |
Methods of sculpting a hard material. An example method includes providing a pulsed power apparatus comprising: an articulated arm; a pulsed power drill bit comprising two electrodes and coupled to the articulated arm; and a power genera...
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WO/2021/042832A1 |
An active sorting muck-collecting device for a slurry balancing shield comprises a sorting stirring drum, a circulation pipeline (30), and a muck collection container (40). The sorting stirring drum comprises an external drum (10) and a ...
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WO/2021/044903A1 |
A tunnel excavator 1 according to one embodiment includes a cutter drum 5 and a door 7. An opening 5a for entering into the cutter drum 5 is provided in an inner wall 53 of the cutter drum 5. The door 7 is fixed to the inner wall 53 by w...
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WO/2021/042858A1 |
An overturning working platform and a tunneling equipment. The overturning working platform comprises: a main platform (10), rotationally provided with respect to a machine body (70) of a tunneling equipment; an overturning driving piece...
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WO/2021/038404A1 |
A rock bolt assembly includes a first section made substantially from carbon steel (12) and a second section (14) made from high strength, austenitic steel with a manganese content in the range of 10% to 24%. The second section has an ul...
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WO/2021/040599A1 |
A mining machine (102) for rock excavation, comprising: a rotatable cutting head (104) having cutting elements (108); a holder (110) for holding the cutting head (104); a movable thrust unit (112) attached to the holder (110); a machine ...
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WO/2021/031621A1 |
A magnetic control material-based, magnetorheological, pilot operated safety valve for a hydraulic support, and a use therefor. The magnetorheological pilot operated safety valve comprises a valve body, a valve core, a return spring (24)...
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WO/2021/027292A1 |
A roof deformation high precision monitoring and early warning system, comprising explosion-proof optical fibre sensors (6), a sensor integration apparatus, a signal conversion apparatus, a data transmission apparatus and a data processi...
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WO/2021/026971A1 |
A lattice composite wellbore structure and a construction method therefor. The lattice composite wellbore structure comprises outer wellbores and an inner wellbore (1) provided therein. An outer wall of the inner wellbore (1) is connecte...
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WO/2021/023665A1 |
The invention relates to a system for securing an anchor (40) in a borehole in a mineral substrate, in particular concrete, mortar, or brickwork, comprising an anchor (40) with a core section and a threaded section and comprising a furro...
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WO/2021/022338A1 |
A friction stabilizer for supporting a rock ceiling in an underground mining environment is disclosed. The friction stabilizer has an external sheath and an internal rod. The internal rod is about 15% of the length of the external sheath...
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WO/2021/018390A1 |
A cutter head for excavating hard rock materials in rock face, comprising: a carrier that is attachable to a cutter arm of a cutter machine; and a drive shaft rotatably supported by the carrier, the drive shaft being rotatable about a dr...
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WO/2021/017451A1 |
A TBM-carried full-automatic sampling device and method. The TBM-carried full-automatic sampling device comprises a base (2), a mechanical wheel mechanism (5), a conveying mechanism (6), a drying mechanism (7), a printing mechanism (8), ...
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WO/2021/016657A1 |
The present invention relates to long wall mining, and, in particular, to components that facilitate the introduction and/or installation of liners, like geosynthetics or the like, into longwall mines. One such component is a guide inclu...
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WO/2021/013838A2 |
The invention relates to a drill head for creating a substantially vertical borehole in the ground, comprising: a body, which can be connected to a rotational drive of a drilling device; drilling tools, which are arranged on the body, fo...
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WO/2021/013186A1 |
A test device for simulating earth-filling and grouting, comprising a grouting system (1), a test bench cavity (2), a bottom plate (3), and an information monitoring device (4). The grouting system (1) is connected to the test bench cavi...
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WO/2021/012021A1 |
The present invention provides a rock bolt comprising first and second portions (11, 12), wherein the first portion comprises an end (13) adapted for expansion to provide a point anchor. The second portion comprises an inner portion (35)...
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WO/2021/008772A1 |
A package (100) of steel wire mesh comprises a steel wire mesh. The steel wire mesh has consecutively along its length direction a first section (102), a second section (104) and a third section (106). The first section is coiled thereby...
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WO/2021/008773A1 |
A roll of chain link steel wire mesh comprises marks provided according to a regular pattern over the surface of the steel wire mesh. The marks are provided by tape attached to the chain link steel wire mesh. A method to manufacture such...
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WO/2021/008771A1 |
An apparatus for unwinding a roll of web-like material comprises three shafts, wherein a first shaft, a second shaft and a third shaft. The three shafts are provided for holding a roll of web-like material in between, in contact with and...
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WO/2021/008387A1 |
An anchor rod and anchor cable stirrer, comprising: a stirring assembly (10) which comprises a stirring shaft (11) and a connecting part (12) provided at one end of the stirring shaft (11) and connected to an anchor rod and anchor cable;...
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WO/2021/005174A1 |
The present invention relates to equipment (6) for mounting a mucking pipeline (1) for a tunneling machine comprising: - a first support (10), configured to receive a first section (3) of the mucking pipeline (1), a second support (20) r...
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WO/2021/003771A1 |
A design method for a mine without leaving coal pillars and without roadway tunneling, comprising the following steps: forming a main shaft (1) and an auxiliary shaft (2) from the ground to a coal seam; developing a first connecting road...
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