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WO/2021/173510A1 |
A polymer geo-injection apparatus for protecting an underground structure is provided. The apparatus includes: a drill bit configured to drill a path through the ground to a desired depth that is above the underground structure; an injec...
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WO/2021/168486A1 |
Drifter engaging adaptor for use in the installation of a rock bolt assembly including an elongate body having first and second sockets (28, 34) for engaging the rock bolt's nut, first and second threaded bores (32, 36) opening into firs...
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WO/2021/159173A1 |
A resin cartridge (10) comprising an inner tube (12) and an outer tube (14) such that the inner tube 12 is received within the outer tube (14). The inner tube (12) 5 has a central bore through which a shaft (13) of a rock bolt (11) may b...
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WO/2021/156088A1 |
A system (200) for installing a service system in a road tunnel, said system being suitable for collecting and conveying the leakage water that drips in the tunnel; said system comprising sections (1) fixed on the intrados (102) of the t...
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WO/2021/156696A1 |
An anchor chair (10) is described comprising two or more passages (112, 114) for an elongated foundation element (20), wherein the passages (112, 114) extend between two or more corresponding openings (122, 124) located on the first side...
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WO/2021/151150A1 |
A drilling assembly is disclosed for drilling a borehole in a rock body and inserting a rock bolt within the borehole in a single pass. The drilling assembly includes an elongated drill string having a downhole end. A drill bit is detach...
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WO/2021/151280A1 |
Provided are a multichannel acquisition system for field crop root system phenotypes, and an installation method therefor. The multichannel acquisition system comprises root system test channels, glass windows arranged on the root system...
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WO/2021/147310A1 |
Disclosed is a large-section rectangular pipe jacking machine, comprising a front shield body (1), wherein the front shield body (1) comprises a shield body housing (12); a plurality of tunneling systems arranged in a vertical direction ...
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WO/2021/146949A1 |
Disclosed are a TBM-mounted rock alteration feature identification and geological prediction system and a method therefor. The system comprises: a detection apparatus (7), which is mounted on a side face of an open-type TBM support shoe ...
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WO/2021/148104A1 |
A cutting assembly (1) for a mining machine (2), said cutting assembly (1) comprising a central hub (3) comprising at least one arm (4) extending radially outwards from the central hub (3), wherein the arm (4) is provided with at least o...
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WO/2021/148299A1 |
The present invention pertains to a use of at least one hard aggregate having a Mohs-hardness of greater than or equal to 8 in an inorganic mortar system for a chemical fastening of anchoring means in mineral substrates, comprising a cur...
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WO/2021/140755A1 |
A steel pipe threaded coupling (1) for use in fastening steel pipes intended for steel pipe piles, the coupling comprising: a box (2) in which an female screw thread (2A) is formed in an interior surface of a steel pipe (10); and a nippl...
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WO/2021/139063A1 |
A grouting pipe and a method of reinforcing a tunnel (5) by surface grouting. The grouting pipe comprises a first sleeve valve pipe (1), a second sleeve valve pipe (2) and a third sleeve valve pipe (4). The sleeve valve pipes are connect...
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WO/2021/137719A1 |
The claimed device relates to the mining industry and can be used for securing a surface of an excavation by means of rock bolts with the aid of ties in the form of a reinforcing mesh. The device is directed toward solving the technical ...
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WO/2021/135038A1 |
A method for construction of a shaft lining. A hanging scaffold-formwork device (3), a lifting device (1) and a suspension and anchoring device (2) are used to perform the following steps of the method for construction of a shaft lining:...
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WO/2021/136837A1 |
The invention relates to a device for the automated installation of at least one tunnel lining segment of a tunnel lining ring, said device being couplable to a tunnelling machine, • having a manipulator with at least one tool for rece...
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WO/2021/132608A1 |
Provided are a timbering pitching device which can further ensure that timbering pitching work will be efficiently carried out in tunnel construction, and a timbering pitching method using the timbering pitching device. A timbering pitch...
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WO/2021/129194A1 |
Disclosed are a waterproof flow guide device which can better guide flow by means of a wave-shaped flow guide plate (1) and is provided with a blocking net structure to prevent a flow guide drainage pipeline from being blocked, and a wat...
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WO/2021/129084A1 |
A modular assembly operation platform apparatus of a portal frame-free lining trolley. At least five top supporting beam bodies (3) are longitudinally arranged above a combined frame body (1), and the two sides of the lower ends of the t...
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WO/2021/120991A1 |
Disclosed is a method for reconstructing a shield tunnel for mining construction. The method comprises the steps of: 1, carrying out construction preparation; 2, abandoning a shell of a shield tunneling machine and disassembling the shie...
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WO/2021/123140A1 |
A sensor assembly for a rock bolt, wherein the rock bolt comprises a central rod, a split tube for being fitted around the central rod, a wedge anchor assembly fitted to the central rod, a rock plate with a hole, and a nut for attachment...
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WO/2021/120832A1 |
Disclosed is a portal-free lining formwork trolley device for concrete construction of a tunnel. A rectangular frame is arranged on the upper portion of a combined frame body (1), a pair of cross beams (18) are symmetrically arranged at ...
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WO/2021/124247A1 |
The present invention relates to a connection system (10) between segments for the construction of modular rings for tunnels, pipelines and the like, comprising: - a coupling seat (25), alongside a first lateral face (17) of a first pref...
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WO/2021/121845A1 |
A positioning apparatus, rock drilling rig and method for positioning. The apparatus (8) is for assisting positioning of a mining work device of a rock drilling rig (1) when drilling drill holes (13). The apparatus is an optical device m...
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WO/2021/124093A1 |
The object of the invention is a multichamber structural element manufacturing method which for forming a multichamber structural element with chamber profiles (1) extending radially from the center defined by the connection of the chamb...
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WO/2021/114583A1 |
A roadheader footage measurement method, relating to the technical field of footage measurement. According to the measurement method, a distance measurement apparatus (2) and a reflecting target (1) are provided, a laser beam is emitted ...
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WO/2021/114649A1 |
Provided is an earth pressure balance shield unearthed volume monitoring system based on belt weighing, comprising a bottom layer communication module, a data collection module, a data management module, a calculation and analysis module...
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WO/2021/114651A1 |
A tunnel boring machine construction-based guide management system, comprising a control module, a bottom communication module, a data acquisition module, a data management module, a calculation analysis module, and an interface display ...
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WO/2021/115025A1 |
Provided is a suspended unit hydraulic apparatus for mining, comprising an oil cylinder (1), a base (2), a sealing cover (3), a lifting column body (4), a bracket body (5), a liquid storage collar (6), and a control box (30); the base (2...
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WO/2021/109648A1 |
A bottom support structure for an emulsion pump station, comprising a frame body, a liquid return main pipe (1) and a liquid supply main pipe (2); an emulsion pump is mounted on the frame body, a cavity is provided in the middle of the f...
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WO/2021/110546A1 |
The invention relates to a method for fixing a component to a shaft wall (18) of a lift system (2), in particular a rail bracket (20) to be fixed to the shaft wall (18), which rail bracket (20) is suitable for fixing a guide rail (14, 16...
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WO/2021/109649A1 |
A liquid supply system for an emulsion pump station comprises a bottom support component (1). An accumulator (2), a liquid supply component (3), and a liquid collection component (4) are disposed on the bottom support component (10). A f...
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WO/2021/110686A1 |
The invention provides a sealing profile (1) for embedding in a moulded part (50) made of curable material, wherein the risk of spalling on the moulded part (50) is reduced. The sealing profile (1) according to the invention has a profil...
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WO/2021/110996A1 |
The invention relates to a device for sinking a vertical borehole, more particularly a shaft, an extraction borehole in a deposit body, or a foundation borehole in the ground, with at least one excavating tool for excavating material fro...
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WO/2021/109749A1 |
A shielding machine having a telescopic normal-pressure tool changing compartment, comprising a shielding machine body (200), and a cutter head body (100) in transmission connection with an advancing end thereof; the cutter head body (10...
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WO/2021/103192A1 |
Disclosed is a supporting structure for preventing roadway surrounding rock from transferring heat, relating to the technical field of roadway supporting. The supporting structure comprises supporting anchor rods (1), an anchoring and sh...
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WO/2021/103191A1 |
A roadside support method by using high-water filled props, relating to the technical field of mine support. Said method comprises the steps of: connecting prop bodies (2) by means of a connector (7), and providing a connecting rod (6) t...
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WO/2021/098444A1 |
A technique for controlling the tunneling parameters of a shielded tunneling machine for a rocky region at a shielded tunneling launch point, said technique being aimed at situations in which rock is present during tunneling. By means of...
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WO/2021/099404A1 |
A rock drilling unit and method for charging drilled holes. The rock drilling unit comprises a feed system for feeding initiators and rock breaking material into the drilled holes. The rock drilling unit is also provided with one or more...
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WO/2021/102485A1 |
A single-use sealing bush which is adapted to form a sealing interface between a rock bolt and a nozzle of a grout delivery system, the sealing bush including a cylindrical body defined between a first end and a second end; a hole in the...
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WO/2021/097236A1 |
Systems for forming or extending a tunnel or shaft within a working surface may include a ram accelerator assembly for accelerating a projectile into geologic material to weaken a region of the geologic material. A cutting tool may then ...
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WO/2021/093751A1 |
A construction method for a tunnel in a transverse semi-soft and semi-hard section stratum, comprising: S1, constructing a pre-buried advanced pipe shed (13) in the area on a tunnel face corresponding to a tunnel arch portion; S2, constr...
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WO/2021/093122A1 |
Disclosed is a method for reducing withdrawal roadway roof pressure at the end of coal face mining, comprising the following steps: step 1, determining an optimum distance between a final fracture position of a main roof (1) of a coal fa...
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WO/2021/087559A1 |
A delivery system for mixing and dispensing a gel stemming material into a blast hole is disclosed. The system includes a dual-pump assembly in fluid communication with respective sources of a first gel precursor fluid and a second gel p...
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WO/2021/087574A1 |
A rock bolt (100) having a longitudinal axis and to be encapsulated within a settable material in a bore hole (144), the bolt (100) including: an elongate bar (102) having a length longitudinally extending between a bar leading end porti...
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WO/2021/088316A1 |
An eccentric hob type heading machine capable of breaking rock according to a predetermined path without affecting supporting work, mainly consisting of a crawler travel mechanism (1), a rack (2), a hydraulic pumping station (3), a power...
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WO/2021/089353A1 |
A rotation indication device (1) for a rock bolt (2) comprising a central rod (3) with a threaded trailing portion (4), wherein the rotation indication device (1) comprises a blind nut (5) comprising a threaded central recess for engagin...
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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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