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Matches 1 - 50 out of 63,622

Document Document Title
WO/2018/127294A1
The present invention pertains to a yieldable rock anchor (10), comprising an elongated tendon (12) extending longitudinally along a tendon axis (A) from a proximal end (16) to a distal end (18), wherein the tendon includes a substantial...  
WO/2018/121107A1
A mine anti-explosion trapezoidal sealing wall and a construction method therefor, which are suitable for the situation that it's too late to construct a conventional sealing wall when thermodynamic disasters such as an explosion and a f...  
WO/2018/121143A1
A small-diameter Kelly TBM driven by a center shaft, solving the problem that a TBM structure in the prior art does not meet the requirements for the construction of a small-diameter tunnel. The small-diameter Kelly TBM driven by a cente...  
WO/2018/122113A1
The present invention relates to a waterproofing system (1) comprising at least two different layers, one layer being a mounting layer (2) and one other layer being a functional layer (3), the two layers being directly or indirectly conn...  
WO/2018/121144A1
A cutter head having a freezing function and a tunnel boring machine. The cutter head comprises a disc-shaped cutter head body composed of a plurality of spoke beams and freezing lines (20, 21) provided on the cutter head body. The spoke...  
WO/2018/121142A1
Disclosed is a mixing and guniting device of a new type for a TBM, wherein the device comprises a concrete inlet pipe (1), a four-way pipe (15), a nozzle (4), an agitator motor (5), a longitudinal swing oil cylinder (6), a flow mixer (11...  
WO/2018/113492A1
Provided is a positioner for reinforcing steel bars of tunnel side wall. At least two groups of reinforcing steel bar positioning arm mechanisms are provided on the same side of an inverted trestle (4). The reinforcing steel bar position...  
WO/2018/114806A1
A machine (100) for cutting material includes an undercarriage (102) including propulsion device for propelling the machine (100) and a cutter head (110) disposed on a tool support and positioning assembly (120) movably supported by the ...  
WO/2018/118154A1
A remote command and control center for a longwall mining system that can be located away from the longwall face and belt line components such as the cutter, conveyor and roof supports is provided. The command and control center is compr...  
WO/2018/112792A1
Disclosed are a heading machine cutterhead fixed and variable displacement combined hydraulic motor drive system and a control method. The system comprises a variable displacement hydraulic motor set (E1, …, Ee), a fixed displacement h...  
WO/2018/114803A1
A machine (100) includes an undercarriage (102) having propulsions devices such as continuous tracks (104) and a cutter head (110) disposed on a cutter boom (122) that is slidably supported over the undercarriage (102). During operation,...  
WO/2018/112337A1
A control system may be provided for a machine having a swivel chair, a positioning member attached to the swivel chair, a wrist attached to the positioning member, and a cutting head. The control system may include at least one actuator...  
WO/2018/112332A1
A control system may be provided for operating a machine (10) having a rotary cutting head (12). The control system may include a wrist (19) capable of rotating about a wrist axis (20), a gear mechanism (33) capable of driving rotation o...  
WO/2018/108223A1
A draining mesh module (1) for building into a construction, such as a tunnel wall, to provide draining channels in said construction, comprises at least one semi pipe (21) of a flexible material. The draining mesh module (1) has a longi...  
WO/2018/103535A1
A normal-pressure replacement cutter disc comprises a large ring (4) and a circular cutter disc. The circular cutter disc is arranged within the large ring (4) and comprises main cutter spokes (1), auxiliary cutter spokes (3), and normal...  
WO/2018/105242A1
An infrared sensor (42) detects infrared rays that are emitted from a region of a surface of a target object, said region having a coating film (20) of a coating material affixed thereto. The coating film (20) includes porous ceramic par...  
WO/2018/104140A1
An apparatus for deployment of a protective net for lining tunnel ceilings or tunnel walls, comprising: a first telescopic element for holding a roll of protective net for lining tunnel ceilings or tunnel walls, said roll of protective n...  
WO/2018/104212A1
The present invention relates to a method for installing a cable bolt (12) in an underground (10), comprising the steps: - drilling a bore (40) into the underground (10), - delivering grout material (49) into the bore (40), - providing a...  
WO/2018/101790A1
Disclosed is a fault fracture zone reinforcement method for a rock TBM tunnel. A fault fracture zone reinforcement operation is performed during a rock tunnel excavation operation using a rock tunnel excavation apparatus comprising: an e...  
WO/2018/101791A1
Disclosed is a soft ground excavation reinforcement apparatus for an improved TBM rock tunnel, the apparatus comprising: an excavation body (100) comprising a rotating cutter head (110) for drilling and excavating rock by means of rotati...  
WO/2018/094657A1
A hydraulic support for soil-like coal working face, and a protection method for coal seam mining. The hydraulic support comprises a support base (7), a support top beam (5), a support vertical pillar (6), an advancing jack (8), a side p...  
WO/2018/094705A1
A hydraulic support frame, hydraulic support frame control method, and a protection method for mining a coal seam containing soil-like coals by using the hydraulic support frame. The hydraulic support frame comprises a base (7), an upper...  
WO/2018/096508A1
This invention concerns a self-drilling rock bolt for use with a two-component grout mixture for setting the rock bolt in a hole in a rock body. The body has an axial interior passage which defines a fluid flow path along which the grout...  
WO/2018/095013A1
A reaming and self-drilling anchor bolt and a construction method, applied in the technical field of quick tunneling and supporting of coal tunnels. The reaming and self-drilling anchor bolt comprises a bolt body (1), a drill bit (2), a ...  
WO/2018/094655A1
Disclosed are a hydraulic support with staged pressure relief and a method for controlling the hydraulic support. The hydraulic support comprises a top support beam (4), a support base (7), a support shield beam (5), a tailing support be...  
WO/2018/095014A1
A self-drilling and self-anchoring anchor bolt capable of being lengthened and suitable for weak coal, and an anchoring method thereof, applied to weak coal mass supporting engineering in tunnels. An anchor bolt body comprises five parts...  
WO/2018/094656A1
A hydraulic support capable of separately performing pressure relief by means of a front pillar and a rear pillar and a hydraulic support control method, for use in correcting inclination of the hydraulic support caused by the pressure o...  
WO/2018/095012A1
An expandable reaming and self-anchoring anchor bolt, and a supporting method. The anchor bolt comprises a simple drill bit (1), an anchor bolt body, and a pretension device; the anchor bolt body comprises a plurality of drilling section...  
WO/2018/096507A1
This invention concerns a coupled self-drilling rock bolt for use with a two-component grout mixture for setting the rock bolt in a hole in a rock body. The rock bolt includes a drilling segment and at least one connecting segment. The d...  
WO/2018/093335A1
The present invention relates to a ground stabilization method and system thereof that enables the creation of a safe and workable chamber environment underground for tunnel boring machine (TBM) interventions for maintenance, replacement...  
WO/2018/090999A1
Disclosed is a novel anti-clogging soil improver spout device of a cutter, comprising a spout ring (1), a central bracing plate (2) provided at the center of the spout ring, and an elastic seal plate (3) pressed on the spout ring by mean...  
WO/2018/086328A1
Disclosed is a shield support device fully enclosing a soil-like coal working face comprising a plurality of shield support systems arranged in parallel. The shield support system comprises a hydraulic support (1) and a carbon fiber mesh...  
WO/2018/086327A1
A full-closed coal mining device for a soil-like coal working face, comprising a hydraulic bracket (1), a carbon fiber net (2), and a coal mining machine (4). The hydraulic bracket (1) is a supporting and covering type hydraulic bracket ...  
WO/2018/086085A1
A method for calculating an earth pressure load on a tunnel comprises the following steps: (1) taking interaction between external soil and a tunnel structure in an actual operation condition as an earth pressure load acting on the tunne...  
WO/2018/086694A1
A roller cutter unit (13) mountable at a cutting head (15) of undercutting mining machines (10). The cutter unit comprises an elongate mount shaft (23) to position and support a cutter ring (14). The cutter ring (14) is secured to the mo...  
WO/2018/086509A1
A method for mounting a mechanical constant-resistance single prop, comprising: (1) fitting a rod body (5) within a cylinder body (3) and adjusting the fitting length according to an actual section height of a cut hole or a roadway in a ...  
WO/2018/082714A1
Provided are a shield tunneling machine for a tunnel connecting passageway and a connecting passageway tunneling method of the shield tunneling machine. The shield tunneling machine comprises a start end supporting walking platform (1) a...  
WO/2018/082202A1
Disclosed is a decompressable unloading base mechanism of a single prop, the decompressable unloading base mechanism comprising a base bottom plate (1) and two wedge blocks. One of the wedge blocks, as a fixed wedge block (2), is welded ...  
WO/2018/082149A1
Disclosed are a withdrawal technology and a recovery method for a mechanical single prop with a constant resistance. The specific steps involve: detecting the work resistance and degree of deformation of the mechanical single prop with a...  
WO/2018/082148A1
Disclosed is a device for pre-loading a mechanical single prop with a constant resistance, the device comprising a rhombic stretchable bracket (3), a screw rod (2), a first cylindrical collar (4) and a second cylindrical collar (6). The ...  
WO/2018/072005A1
A mobile canopy (or rapid advance shield) for use in a tunnel, comprising: first and second opposing and spaced walls; a curved roof coupled between the first and second walls; first and second skis mounted to respective bottoms of the f...  
WO/2018/071097A1
This invention relates to a protective net for catching falling rocks in a railway or roadway tunnel, said protective net is composed of p-aramid fibers and is free of metal wire. The present protective net has high electrical insulating...  
WO/2018/065726A1
The invention relates to a device for the automated picking up and placing of a segment forming the lining of a tunnel, intended to be coupled to a tunnel-boring machine (1) provided with a segment erector (2), comprising: - a controller...  
WO/2018/055536A1
A rock bolt (10) is provided for frictionally engaging with the internal surface of a bore drilled into rockmass. The bolt comprises a tube havening a circular cross-section (12) defining a longitudinal split (14) and a longitudinal axis...  
WO/2018/055549A1
A shaft enlargement arrangement for a boring system is provided, the shaft enlargement arrangement comprising a hollow column proximate a lower end of the boring system. A reamer section comprising a downwardly tapering first cutter head...  
WO/2018/057841A1
A rock excavating device includes a shaft and a cutting element. The shaft includes a first portion and a second portion connected to an end of the first portion. The first portion is rotatable about a first axis. The second portion exte...  
WO/2018/058021A1
A mine roof bolting system including a bearing member having a first member, a second member spaced apart from the first member, and apertures defined through each of the first and second members, and a mine roof bolt extending through t...  
WO/2018/050556A1
The invention relates to a measurement signal evaluation method for a micro-tunneling method for simultaneously pushing at least two pipe elements having a predetermined static charge threshold, into a subsurface (1), for creating a pipe...  
WO/2018/049974A1
Disclosed is a telescopic gage disc cutter box. The cutter box can meet the large-diameter expanding excavation requirements of a TBM cutter head to deal with engineering geology with large buried depths and high rock convergence. The te...  
WO/2018/052246A1
According to the present invention, a linearly movable vibration ripper is disclosed. The linearly movable vibration ripper comprises: a main body part; a coupling bracket, provided so as to be rotatable in the main body part, for the co...  

Matches 1 - 50 out of 63,622