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WO/2018/133492A1 |
Disclosed is a non-uniform support structure for gob-side entry driving under a deep unstable overburden rock, comprising a roadway top plate support structure, a gob-side assistive support structure, and a physical coal assistive suppor...
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WO/2018/133741A1 |
Disclosed are a tunnel excavator and a construction method for same. The tunnel excavator comprises a frame. The frame is divided into a front segment (1), an intra-cavity excavating segment (2) and a tail segment (3), the profile of the...
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WO/2018/132979A1 |
Disclosed are a laser-assisted tunnel-boring machine and a rock breaking method therefor. The machine has two rock-breaking modes: a laser-hobbing cutter rock-breaking mode and a hob rock-breaking mode. The identification of and the swit...
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WO/2018/133745A1 |
A pipe jacking tunneling device for underwater tunnels and a construction method thereof, the pipe jacking tunneling device comprising a pipe jacking device (1) and a tunneling section (2), the pipe jacking device (1) being positioned in...
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WO/2018/136982A1 |
The invention provides a preload device which includes a pressure vessel body which has a hole in the wall of the body, and a load indicator member engaged with the body over or through the hole, which has a housing which defines a cavit...
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WO/2018/134328A1 |
A self supporting board for use in fire protection, at least part of the board being formed from material comprising in wt%: inorganic fibres 35 to 70% silica 30 to 65% 5 binder 0 to 10%.
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WO/2018/133493A1 |
An unbalanced support design method for gob-side entry driving under deep unstable cover rock, comprising the following steps: step 1, analyzing exploration conditions; step 2, selecting a roadway roof support structure and roadway two-s...
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WO/2018/133743A1 |
Disclosed is an tunnelling apparatus for use in a pipe jacking method, the tunnelling apparatus comprising an excavating apparatus (1), a head front-end track (2), a central track (3) and a rear apparatus (4), wherein the excavating appa...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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,...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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 ...
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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...
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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 ...
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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...
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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 ...
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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...
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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...
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