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Patent Searching and Data


Matches 1 - 50 out of 64,037

Document Document Title
WO/2019/006896A1
Disclosed are a rigidity-flexibility-coupled tunnel monitoring support comprehensive system and method. The system comprises a plurality of parallel support arches, wherein the support arches comprise a plurality of rigid support units (...  
WO/2019/007127A1
A shield cutter head mud cake cutting device and cutting method. The cutting device comprises a high pressure jet means (2). The high pressure jet means (2) comprises a self-rotating sprayer (2-1) and a barrel (2-14) mounted on a cutter ...  
WO/2019/000907A1
A large-deformation constant-resistance anchor bolt and anchor cable grouting support, and roadway quantitative support method. The anchor bolt comprises a bushing (1), a hollow bolt body (51), an anchor cylinder (3), a support plate (6)...  
WO/2019/000839A1
The present invention relates to the field of mining engineering. Provided is a monitoring method integrating three aspects of data relating to strata control, comprising: downhole pressure observation, in which a pressure monitoring dev...  
WO/2018/233354A1
A car frame traveling type shield tunnel wall post-grouting detection apparatus, comprising a car frame traveling type automatic conveying device, an air-coupled ground penetrating radar (1), and intelligent wall post-grouting body proce...  
WO/2018/232532A1
A method for drilling a tunnel through a formation must address environmental concerns. One tunneling method comprises the steps of: preparing a mixed metal-viscosified drilling fluid including bentonite, a mixed metal viscosifier and co...  
WO/2018/233149A1
Disclosed is an argillaceous soft rock roadway partition multi-granularity grouting reinforcement method, comprising evaluating a corresponding geological state according to geological information data of a specific roadway, designing dr...  
WO/2018/233286A1
Disclosed is a subway shield segment. The segment comprises a segment body (1) of a graphene-steel fiber concrete structure. A steel bar frame covers the inside of the segment body (1), and comprises an upper layer steel bar net, a lower...  
WO/2018/228217A1
The invention provides a complementary transportation and support system used after rapid excavation. The complementary transportation and support system comprises a crushing and transportation device, a roof bolt support device (5) and ...  
WO/2018/232426A1
The invention provides a method of adapting a rock bolt, which has an elongate metal body which extends between a leading end and a trailing end, to provide the bolt with a positioning and a puncturing formation, the method including the...  
WO/2018/228656A1
Roof mesh installation apparatus for a mining machine. A mesh roll is carried at a dispenser at a forward position of the machine capable of unrolling mesh to be laid and bolted at a tunnel roof. A tensioning device positioned at the dis...  
WO/2018/229754A1
Systems and methods for detecting underground voids, comprising steps of: digging a tunnel to be the detection path; placing fluid dispensing means along the bottom part of the tunnel wherein said dispensing means further equipped with f...  
WO/2018/231118A1
Arrangement (1) for use at rock reinforcement is described herein. The arrangement (1) comprises a pump connected to a mixer (7) through a first line (5), wherein the mixer is adapted to create a mixture comprising at least two component...  
WO/2018/231117A1
Arrangement (1) for use at rock reinforcement is described herein. The arrangement (1) comprises: a mixer unit (3) adapted to carry at least one mixer (5) intended to achieve a mixture of at least two components and to inject the mixture...  
WO/2018/227219A1
The invention provides a centralising positioner for a resin bolt which includes a central attachment part which is adapted to engage a leading end of the bolt and a positioning part integral with the attachment part that extends from th...  
WO/2018/224029A1
A shield spiral conveyor (1) comprises a rotary cylinder (11) for discharging and cutting muck (6) and a cylinder driving assembly (2) used for driving the rotary cylinder to rotate. The cylinder driving assembly comprises a transmission...  
WO/2018/223730A1
A shield segment capping block assembling apparatus. By means of alternate supporting of the jacking connection of capping segments by two lead screws on a capping segment supporting frame and the jacking connection of the capping segmen...  
WO/2018/227218A2
The invention he invention provides a resin bolt which includes an elongate shaft which extends between a leading end and a trailing end and a positioning head which is integral to the shaft at the leading end and which extends in the el...  
WO/2018/218378A1
The invention relates to distension techniques for neutralising the rock explosions that often occur during the construction of underground works located in environments exposed to high stress fields, such as caverns, main tunnels or bra...  
WO/2018/218900A1
Disclosed is an anchor-bolt hole interior reamer used for mining. Said reamer comprises a reaming cutter, a sleeve (1), a push-pull rod (2), a drilling-rig connecting shaft (3), and a manual hydraulic jack (4); the push-pull rod (2) is c...  
WO/2018/223156A1
The invention provides a positioning device for positioning a resin cartridge within a rock hole which includes a cartridge holding means comprised of a hollow cup-like body which extends between an apical end an open mouth end and an el...  
WO/2018/223157A1
The invention provides a bung (10) which has a body (12) which extends between a leading end (24) and a trailing end (22) and which includes an inner part (14) of a rigid material which has a cylindrical aperture (20) for receiving a roc...  
WO/2018/223158A1
The invention further provides a groutable rock anchor which includes a protective sleeve of a rigid or semi-rigid water impermeable material which extends between a first end and a second end, a distal end cap, formed with a plurality o...  
WO/2018/214737A1
The present invention relates to the field of shield tunnel construction, and provides a construction method for the inner structure of a single-bore double-track composite lining shield tunnel. Steps of the method mainly comprises a fir...  
WO/2018/214180A1
Disclosed is a microwave pre-splitting-type hard rock tunnel boring machine cutterhead (10). A front face of the cutterhead (10) is provided with several microwave emission outlets (1), wherein wave transmitting protection plates (12) ar...  
WO/2018/214518A1
Disclosed is an intelligent, flexible protection device for a steel arch in case of a tunnel rockfall collapse, the device comprising an arch body system and a flexible protection system. The arch body system comprises an arched rigid hi...  
WO/2018/212471A1
The present invention relates to a non-electric primer detonator for tunnel blasting and, more specifically: can reduce the amount of a signal tube, which is a detonating fuse, to be used in the application of a non-electric primer deton...  
WO/2018/211414A1
Pre-cast segment for a reinforced concrete tunnel, comprising an arcuate structure having a reinforcement and a cement agglomerate that is designed to cover structurally repeated annular tunnel segments for modules corresponding to a fra...  
WO/2018/212713A1
An underground shaft development method comprises: (a) drilling blastholes extending into a rock formation, each drilled from a starting location defining a first blasthole end to an ending location defining a second blasthole end; (b) l...  
WO/2018/213706A1
A cutter assembly for a tunnel boring machine includes first and second housing mounts each having a plate portion, an abutment flange, and a plurality of spaced seats. A cutter ring assembly is mountable in the housings and includes two...  
WO/2018/209400A1
The invention relates to an improved bolt apparatus for installation, the improved bolt apparatus including, a bolt having a head, shaft and an end and the head of the bolt including an improvement means. The bolt also including an engag...  
WO/2018/205492A1
A high ground pressure laneway stress transfer method based on a fracturing ring. Fracturing is conducted by constructing a drill hole (1) according to a laneway (2) stress source; a circle of artificial weakening zone, i.e., "a fracturi...  
WO/2018/209365A1
The invention provides a rock anchor assembly which includes: a resiliently radially deformable tubular member which longitudinally extends between a leading end and a trailing end and which has an arrestor formation integral with, or en...  
WO/2018/206628A1
A friction rock bolt assembly to frictionally engage an internal surface of a bore formed in rock strata. The rock bolt comprises an expander mechanism having at least two radially outer wedge elements engageable by an inner wedge elemen...  
WO/2018/209063A1
The present invention provides a multi-layer barrier assembly or device for post- installation injection of a resin, grout, or other fluid fluid. The barrier device comprises first and second layers defining an intermediate open-matrix l...  
WO/2018/206630A1
A friction rock bolt assembly to frictionally engage an internal surface of the bore formed in rock strata. The rock bolt comprises a loading mechanism provided at a rearward end of the rock bolt having a load absorber to absorb an initi...  
WO/2018/203721A1
A directional drilling apparatus using a water hammer unit of the present invention comprises: a hammer unit including a hammer body which is provided with a bit unit for performing a drilling operation at an end thereof so as to be mova...  
WO/2018/197912A1
Present invention relates to a multilayer insulating device for the protection of space delimiting bodies, which contains an insulating body (20) positioned between a wet side (1) and a protected side (2), where the insulating body (20) ...  
WO/2018/197154A1
A cutter (127) for a cutting unit (700) used in cutting apparatus (100) suitable for creating tunnels or subterranean roadways. The cutter (127) includes: a disc body (711) having an underside (732), an upper side (730) arranged substant...  
WO/2018/192764A1
A cutting head (128) for cutting apparatus (100) for creating tunnels or subterranean roadways having: a rotatable cutting head body (131); a plurality of cutting units (700A,700B) mounted on the cutting head body (131), said cutting uni...  
WO/2018/192653A1
A rotary cutting head (15) for a cutting machine comprising a plurality of nozzles (29) positioned at a peripheral portion of the head to direct a fluid jet to a selection of cutting buttons located at cutter discs (14). The nozzles (29)...  
WO/2018/192765A1
Cutting apparatus (100) for creating tunnels or subterranean roadways comprises: a support structure (800) having first and second cutting assemblies (900), with a rotatable cutting head (128) and a mounting assembly (902), which include...  
WO/2018/195565A1
A tool to aid in the installation of a rock bolt assembly in a rock hole which includes a drive shaft having a proximal end, which is adapted to engage with a drilling rig, and a distal end which includes a recess which is adapted to rec...  
WO/2018/188531A1
Disclosed is a slurry shield tail brush replacement safety protection device using liquid nitrogen freezing, comprising, arranged from outside to inside, a shield tail shell (1), shield tail brushes (2) and segments (3), the shield tail ...  
WO/2018/188530A1
Disclosed are a method and device for an emergency slurry supplement circulation process used for a slurry shield, comprising a basic slurry supplement part and an emergency slurry supplement part. In the basic slurry supplement part, ne...  
WO/2018/189273A1
The invention relates to a boring device for producing a borehole (100) in the ground from a starting point (120) to a target point, along a boring line, comprising at least one first ground loosening means (11) arranged on the front end...  
WO/2018/189565A1
An anchor assembly comprising a strand (4) and an anchor unit (6) receiving said strand therethrough, the anchor assembly (2) being destined to be fixedly received in a hole (10) for anchoring said strand. The anchor unit (6) comprises a...  
WO/2018/188529A1
Disclosed is a covering earth balancing and safe receiving method for a large-diameter tunnel boring machine. Steps are as follows: determining a penetrating posture of a tunnel boring machine, closing and reinforcing a reinforced area, ...  
WO/2018/188527A1
Provided is a technical solution of a process method for exchanging a hob and a toothed cutter at atmospheric pressure for use in a composite stratum shield, comprising the following operation steps: step 1: rinsing a blade cylinder (5);...  
WO/2018/185648A1
The invention relates to hanging wall support apparatus (1) that includes an openwork screen structure to provide overhead protection from rock falls in the unsupported workings of a mine. The openwork screen structure (6) includes a plu...  

Matches 1 - 50 out of 64,037