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Patent Searching and Data


Matches 301 - 350 out of 45,312

Document Document Title
WO/2022/057947A1
A device for active measurement of cross-fault interface Newton force in a shale gas mining process, comprising an NPR anchor cable (1) and at least one pair of measurement assemblies (2) symmetrically sleeved on the NPR anchor cable. Th...  
WO/2022/058853A1
Jet grouting involves injecting grout into geological material to improve its quality; however, use of jet grouting is limited to situations in which the injection systems can be positioned relatively close to the region to be improved. ...  
WO/2022/054937A1
The purpose of the present invention is to provide a ground drilling device that can be maintained in a shorter time by reducing the abrasion of the rotary blade, extending the life of each component, and lowering the exchange frequency....  
WO/2022/051864A1
A system for mining material in an underground tunnel, comprises a rail on the roof of the tunnel. Muck box carriers are supported on the rail and are movable along the rail. Muck boxes may be selectively lowered to the floor of a mine t...  
WO/2022/049950A1
Provided is a method for producing a recycled product of ash in which the concentration of environmentally controlled substances is managed so as to be suitable even when there is variation in the state of the ash. The method is for pr...  
WO/2022/043463A1
The present invention relates to a system (1) for monitoring the advancement of advancing machines (2a, 2b, 2c), in particular of tunnel-boring machines, taking place along a desired advancing axis (S), comprising an optoelectronic aimin...  
WO/2022/038132A1
The invention relates to a sealing unit (115) for sealing an annular gap (109), which is formed between a sealing raceway (106) and a sealing carrier (112), wherein said sealing unit comprises a U-shaped sealing ring holder (118) which i...  
WO/2022/032862A1
Disclosed is a multi-layer functional gradient vertical shaft wall structure. The shaft wall structure comprises a plurality of coaxial functional layers of concrete; the use functions of the functional layers of the whole shaft wall str...  
WO/2022/033502A1
An assembling trolley for a lower assembly section of an assembly-type station pile-anchor system. The assembling trolley comprises two traveling rails (1) arranged in parallel, wherein a trolley frame (2) is arranged on the two travelin...  
WO/2022/022056A1
A light electric support for a coal mine, comprising: a pushing device (100), used for driving the light electric support for a coal mine to move; a top beam (200) that can be lifted or lowered with respect to the ground, wherein a plura...  
WO/2022/016949A1
An impact-resistant balance oil cylinder having the functions of pressure relief and buffer protection. The impact-resistant balance oil cylinder comprises a cylinder body (11), a piston (13), a piston rod (14), and a first valve core (2...  
WO/2022/014530A1
A wireless detonation system (1) has a blasting operation device (40), a detonator (10), and a relay device (30). The blasting operation device (40) is positioned at a distance from a work face (71) and transmits a first downlink wireles...  
WO/2022/011758A1
An adjustable tunnel excavation equipment receiving platform, comprising a pier assembly (1), inter-pillar support assemblies (2) and a receiving platform assembly (3), wherein the pier assembly (1) comprises a plurality of pier-combinin...  
WO/2022/016200A1
The invention provides an adaptor for connecting a drill bit to a hollow shank of a self-drilling rock bolt, the adaptor including a body which extends in an axial direction between a distal end and a proximal end, a tubular conduit whic...  
WO/2022/014783A1
The present invention relates to a double-acting hydraulic wedge-shaped cylinder rod type packer and, more particularly, to a double-acting hydraulic wedge cylinder rod type packer, comprising: a connector unit; packer units which are pr...  
WO/2022/010407A1
System for securing an anchor bolt in a borehole comprising an apparatus for inserting a grout tube (7) into the borehole, the apparatus comprising cutting means (5) for cutting the grout tube (7), and clamping means comprising primary a...  
WO/2022/007694A1
The present invention relates to the field of grouting, and in particular to a grouting apparatus for a highly coagulative grouting material. The grouting apparatus comprises a grouting pipe, a connector and a self-sealing pipe head. One...  
WO/2022/010381A1
A global logistical system includes modules for transporting people, which are equipped with a life-support system, and a system for transporting cargo, which comprises transportation means, interconnected tunnels, a unit for controlling...  
WO/2022/008217A1
A sealing device kit for the protection of strand ground anchors (A) comprises at least one transition pipe kit (5) and/or a bellow sleeve kit (8), wherein the transition pipe kit (5) is designed such that it protects an area of a strand...  
WO/2022/001622A1
A mounting method for a shield tail of a shield tunneling machine. The shield tail (10) comprises a plurality of arc pieces comprising an upper arc plate (11) and a lower arc plate (12) arranged opposite one another, and two side arc pla...  
WO/2022/001621A1
A sealing method for a shield tail (20) sealing system for a shield tunneling machine (50). The method comprises: step S30: applying grease to sealing brushes (10) of the shield tail (20) sealing system; step S40: making shield tail gaps...  
WO/2022/000811A1
An intelligent coal caving method using hydraulic supports on a fully mechanized working face. In the method, a signal acquisition module is composed of a plurality of pressure sensors mounted in column oil cylinders of hydraulic support...  
WO/2022/002594A1
A setting device for a self-drilling anchor bolt of the present invention comprises: a drive shaft, one end thereof having a shank for connecting to an impact tool, and another end being a setting part for pushing the self-drilling ancho...  
WO/2021/258143A1
There is disclosed a chuck adaptor (10) for fitting between a drill head (12) and an elongate member (14). The chuck adaptor (10) may include a first end (16) with an aperture (18) adapted to receive and rotatably engage with the elongat...  
WO/2021/263102A1
An apparatus is for installing support for a surface of a mine passage, such as a mine roof, using an object, such as a roof bolt. The apparatus includes a driver adapted to advance toward the surface for driving the object into the surf...  
WO/2021/253068A1
This disclosure relates to navigation of an underground mining machine. A laser range finder captures first and second 3D point clouds of first and second overlapping parts of the underground mine from first and second positions of the m...  
WO/2021/244675A1
Provided are a subway collapse emergency management system and method for implementation thereof. Using a gravity pool (1) and the gravitational force on water, in combination with the blocking effect of a jam post (2), a counterforce to...  
WO/2021/244674A1
Provided is a method for determining the safety of a subway fracture zone after curtain grouting, comprising the following steps: determining the equivalent radius dp of a fracture zone on a plane; determining the calculated equivalent r...  
WO/2021/245485A1
A general-purpose infrastructure tunnel with a plurality of parallel lumens formed by pipe ramming techniques from a plurality of prefabricated members with a structured cross-sectional layout, defining a first lumen and at least one sec...  
WO/2021/243763A1
An assembled lining trolley capable of being used for various cross-section sizes, comprising: a portal frame assembly, both stand columns (11) and a cross beam (14) being of telescopic structures; a formwork assembly detachably disposed...  
WO/2021/244673A1
Provided is a method for predicting the thrust of a pipe in pipe-pushing emergency response when a subway tunnel collapses. Comprised are: determining the height H and the severity γ of a collapse, determining the distance H from the ce...  
WO/2021/241092A1
This method for controlling a tunnel-drilling rig (10) comprises a step (S21) and a step (S22). In step S21, with a gripper (12a) of a rear body section (12) extended to secure the rear body section (12) to the inner wall of a tunnel, a ...  
WO/2021/237402A1
An assembled lining trolley allowing for rapid turnover comprises a mast assembly (1), a template assembly (2), a hydraulic system (3), a lateral movement mechanism (4), and a travelling mechanism (5). The mast assembly (1) comprises a b...  
WO/2021/239664A1
A wear support assembly comprising a wear pad arranged on top of a support plate wherein the support plate has a lower surface for connecting to a raise boring tool and both the wear pad and the support plate have at least one hole for r...  
WO/2021/239246A1
A handling system for handling expendables (1) for a drill rig (2) adapted for automated handling of the expendables (1).  
WO/2021/237926A1
Disclosed is a hard rock cross passage tunneling machine, comprising a split drilling machine (1) and a tunneling apparatus (2). A drill bit rod (104) is detachably arranged at an output end of the split drilling machine (1); the tunneli...  
WO/2021/243077A1
The present disclosure provides systems and methods for determining residual tension of a target bolt. An example method may include modeling ratios of times-of-flight of longitudinal waves and times-of-flight of shear waves as a functio...  
WO/2021/241080A1
This tunnel excavation device comprises a front body part and an erector device. The front body part has a cutter head and a cutter head support that rotatably supports the cutter head. The erector device is provided to the cutter head s...  
WO/2021/239245A1
A cable handling device (1) for a an underground mining drill rig (2), wherein the cable handling device (1) comprises a first feeding assembly (3) comprising a cable bending guide (4) and a first feeding device (5) configured to receive...  
WO/2021/239225A1
24 Abstract The invention relates to a drum cutter arrangement (10) for a carrier vehicle (1), the drum cutter arrangement (10) comprising: a main element (20) with a longitudinal extension (L); a first and a second rotatable cutting dru...  
WO/2021/234516A1
A saltwater desalination plant with intake-outtake assembly and a method of constructing such intake-outtake assembly are disclosed, where an elongated circular lumen of the intake assembly for collecting saltwater from a saltwater sourc...  
WO/2021/233753A1
The invention relates to a method for creating a tension anchor in the ground with at least one flexible tension cable element which is unwound from a receiving drum and, to form the tension anchor, is introduced into an anchor hole in t...  
WO/2021/230034A1
A tunnel excavation apparatus (1) comprises a body (10), a frame (15), and a work stand (16). The body (10) has a front barrel part (11) and a rear barrel part (12). The front barrel part (11) has a cutter head (21) provided with a plura...  
WO/2021/232073A1
A resin input nozzle (10A) which is adapted to engage or connect to a hollow resin-anchored rock bolt (12) to introduce a resin composed of a plurality of resin components (A,B,C), into and through the bolt, the nozzle including a body (...  
WO/2021/228981A1
A tension indication device (1) for a rock bolt (2) wherein the tension indication device (1) comprises a support washer (5), a cover member (6) with a central hole for receiving a trailing portion of the rock bolt (2), and an indicator ...  
WO/2021/227383A1
A method for treating tunnel leakage water in an alpine region. The method comprises the following steps: 1, exploring a water seepage section and a water rich section of a tunnel; 2, determining the size of a diversion and drainage stru...  
WO/2021/228004A1
A water jet technology-based anchor cable self-drilling and rapid anchoring construction method, comprising the following steps: adjusting an angle-adjustable drilling mechanism so that a hollow anchor cable (1) faces a preset drilling d...  
WO/2021/230848A1
The present invention is walkway (100) for use in emergency evacuation situations in railway tunnels (200) and for maintenance personnel to provide access to the tunnel (200) by foot characterized by comprising; an adjustable stability e...  
WO/2021/224218A1
The present invention relates to a two-component composition consisting of a component A intended to be mixed, in situ, with a component B in order to form an injectable or pumpable organo-mineral compound, in particular for injection-se...  
WO/2021/223573A1
A construction structure for communication and connection between a newly added mined channel and an existing station hall layer (1). A reinforcing ring beam (21) and a newly added surface layer (107) are provided at a connection port of...  

Matches 301 - 350 out of 45,312