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WO/2020/082746A1 |
Disclosed is a robot (4)-supported flexible-arm boring machine capable of excavating a tunnel with an arbitrary cross section. The flexible-arm boring machine comprises a cutter-head cutting tool system (1) and a main beam (6). A rear po...
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WO/2020/073774A1 |
An early warning method and system for a roadheader remote monitoring system. The method comprises: preconfiguring early warning strategies corresponding to respective parameters of a roadheader, and preconfiguring combined parameter inf...
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WO/2020/071593A1 |
The present invention relates to a backfill material grouting condition evaluation method for a shield TBM tunnel segment, and a backfill material grouting condition evaluation device using same, the backfill material grouting condition ...
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WO/2020/070395A1 |
The invention relates to a method for reinforcing a structure, comprising the following steps: - preparing fibered UHPC comprising a cementitious precursor mixture, water, a fluidizing agent and metal fibers, - transporting the fibered U...
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WO/2020/064362A1 |
Applying sprayed concrete (S) by means of a sprayed concrete nozzle (14) with an associated mixing device (18) for metering setting accelerator (24) to the sprayed concrete (S) to be applied by means of the sprayed concrete nozzle (14), ...
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WO/2020/068850A1 |
A roof support includes a base, a canopy for engaging a mine surface, a shield coupled to the canopy, and a link coupled between the base and the shield. The canopy is supported relative to the base and includes an end configured to be s...
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WO/2020/056794A1 |
A shield-machine empty-pushing stepping apparatus, comprising a counter-force assembly (2) provided on a shield-machine guiding table (1) and a force transferring piece (3), wherein the shield-machine guiding table (1) is provided with t...
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WO/2020/060445A1 |
The invention relates to the field of construction, more precisely to methods of assembling an inner casing for repairing a linear structure, in particular underground and/or underwater linear engineering structures. A plastic tubing is ...
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WO/2020/056993A1 |
Disclosed is a main drive high-pressure sealing system for a shield machine. In the system, an inlet of a compressed air input interface is used for connecting to a gas source; an inlet of a first positive action pneumatic regulating val...
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WO/2020/061598A1 |
The invention provides a strain measuring rock bolt (10) which includes a yielding rod (12) of a malleable material which extends between a distal end (14) and a proximal end (16), a bore (18) which extends through the rod between the di...
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WO/2020/052013A1 |
A continuous temporary roof protection apparatus for a continuous mining machine, and a continuous mining machine, the continuous temporary roof protection apparatus comprising a rolling roof protection part (A), the rolling roof protect...
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WO/2020/052015A1 |
Disclosed are a steel belt conveying device for an anchor conveyor, and an anchor conveyor. The conveying device comprises an upper horizontal conveying portion (A), a left inclined conveying chain (B1), a right inclined conveying chain ...
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WO/2020/052012A1 |
A construction method for a continuous mining machine having a device continuously providing provisional roof support. A continuous mining machine (6) is comprised. The continuous mining machine (6) further comprises a device continuousl...
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WO/2020/056434A1 |
The rock drill adapted filler apparatus which includes, a nozzle component having a body which includes a passage with has an inlet end and an outlet end, with the outlet end adapted to receive a filler valve connector of a hydraulically...
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WO/2020/048470A1 |
An arc-shaped track wall sawing machine. By machining a track into a keel shape, the track is easily curved to a radian attached to an arc-shaped track bed (11), without changing the supporting intensity of the track, and the track is re...
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WO/2020/047562A1 |
The invention provides an integrated bolt rotating and a grout delivery device for use in a mechanised rock bolting application which includes a bolt rotator (28) which has a shaft (30) with a first end, adapted for engagement to a drill...
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WO/2020/042057A1 |
A tunneling boring machine which prevents mud cakes from forming at an excavation part, comprising a rotary cutterhead (1) mounted at the front end of the tunneling boring machine, wherein a T-shaped plate (2) is fixedly connected to the...
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WO/2020/042055A1 |
A rectangular shield tunneling machine provided with an anti-soil accumulation device, said machine comprising a machine head (5), a connecting body (3) and a machine body (1), wherein the connecting body (3) is fixedly connected with th...
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WO/2020/046175A1 |
The invention relates to the field of mining. The claimed method involves installing a lining at a distance from the shaft bottom not less than the level of theoretical stabilization of the permanent deformation of the rock walls, which ...
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WO/2020/047564A2 |
The invention provides a strain measuring rock bolt which includes a yielding rod of a malleable material which extends between a distal end and a proximal end, a bore which extends through the rod between the distal and proximal ends, a...
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WO/2020/037815A1 |
Provided is a single anchor concentrated grouting full-length anchored steel wire tendon, wherein same is applicable to deep dynamic pressurized roadway or soft rock roadway support projects. The steel wire tendon is constituted of paral...
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WO/2020/040243A1 |
This structure material is provided with: a base material for forming a structure; and an ion supply source present inside or on the surface of the base material, the ion supply source supplying a cation and/or an anion constituting a ha...
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WO/2020/037817A1 |
Provided are a flexible steel wire tendon for constructing a roadway roof thick-layer rock beam and a supporting method, wherein same are applicable to a coal mine roof supporting project. The steel wire tendon comprises a central pipe (...
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WO/2020/037816A1 |
A steel wire bundle for mines, which is suitable for roof support engineering during the construction of a coal mine well lane, comprising a steel wire bundle main body (1), a tray (2) and a nut (3). The steel wire bundle main body (1) c...
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WO/2020/039340A1 |
A rock bolt for installation within a bore formed in rock strata having an elongate shaft with the leading end for installation into the bore and a trailing end projecting from an open end of the bore. A locking nut is threadably attache...
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WO/2020/038721A1 |
Double-walled tube section for constructing a double-walled tube segment suitable for underpressure applications such as an evacuated tube transport system.
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WO/2020/038051A1 |
A method for calculating the amount of energy conservation of open controllable circulating ventilation for an extra-long highway tunnel. The method comprises the following steps: firstly, determining a calculation formula for the total ...
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WO/2020/034898A1 |
A cantilever-type driving and anchoring integrated machine. An anchoring bolt boring machine (300) comprises a vertical swing boring arm (304) and a horizontal swing boring arm (306); the vertical swing boring arm (304) is hinged to a ch...
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WO/2020/024268A1 |
The present invention relates to a tunnel precast lining assembly structure and a method therefor. A precast lining of the assembly structure is formed by assembling precast lining arc plates which are divided into multiple rings in a lo...
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WO/2020/026766A1 |
Provided is a method for producing a glass bulk body in a simple manner, comprising irradiating an aggregate of sand granules, a rock or concrete with laser to form a dense glass layer contiguously in an arbitrary region using a silica (...
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WO/2020/024005A1 |
The present invention relates to a jack stand. The jack stand includes a base and a post for extending from the base. A top is provided for topping the post and engaging with a load. The top includes a load spreader for spreading the wei...
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WO/2020/019626A1 |
A pulse-free spraying machine resolves the issue of pulsing during pumping of a concrete spraying machine. The pulse-free spraying machine comprises a machine frame (1), a pumping mechanism (2), a rotation mechanism (3), a motor, and a h...
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WO/2020/019840A1 |
A composite hollow anchor rod structure, comprising a connecting end head (1) and bearing sleeve rods (2), the bearing sleeve rods (2) being hollow tubular structures, the inner surface of the two ends thereof both being provided with a ...
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WO/2020/019395A1 |
A shaft guide connection apparatus, for use in connecting an upper shaft guide (2) to a lower shaft guide (7). A notch is provided at one side of the top of the lower shaft guide. The shaft guide connection apparatus comprises a connecti...
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WO/2020/021390A1 |
An equipment assembly (1) suitable to engage a vault (950) of a tunnel (900). The equipment assembly (1) extends along a main axis (X-X) comprising a plurality of longitudinal members (2) and a plurality of centerings (3) positionable in...
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WO/2020/021445A1 |
The present invention relates to the use of foaming additives in liquid, paste or powder form, to condition soil excavated with a tunnel boring machine. Said additives can be classified as readily biodegradable and are characterised by a...
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WO/2020/019628A1 |
A pulse-free wet spraying machine, comprising a frame (1), a pumping mechanism (2), a swing mechanism (3), a motor, and a hydraulic system (4). The pumping mechanism (2) comprises a hopper (21), a material chamber (22), a concrete feedin...
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WO/2020/021491A1 |
This invention relates to a safety cage apparatus (1) and method and more particularly, to a safety cage apparatus (1) and method that facilitates installation of roof bolts (16) using handheld drills and other underground work. The safe...
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WO/2020/023771A1 |
A cutting assembly is provided for a rock excavation machine having a frame. The cutting assembly includes a boom, a cutting device, and a plurality of fluid actuators. The boom includes a base portion and a movable portion. The base por...
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WO/2020/014747A1 |
The present invention relates to a system for recovering a continuous miner arrangement from a tunnel. The system includes a coupler for coupling the continuous miner arrangement to a pulling apparatus. The pulling apparatus pulls the co...
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WO/2020/007003A1 |
A tunnel boring machine steel arch installation system comprises: a conveying device, for receiving a steel arch (7) and conveying the steel arch to a preset transfer position; a joining device, for joining multiple steel arches in a hea...
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WO/2020/007820A1 |
The invention relates to the use of a kit in the form of a cartridge or a film bag, which has multiple, in particular two compartments, of which one contains synthetic resin components comprising a radically polymerisable synthetic resin...
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WO/2020/007088A1 |
Disclosed are a coupled supporting and protection structure based on a high constant-resistance mechanical monolithic support, and a construction method therefor. The structure comprises a high constant-resistance mechanical monolithic s...
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WO/2020/007631A1 |
The invention relates to a tunnel lining composed of at least two concrete elements (10), having at least one protective element (20) connected to each concrete element, the protective element (20) having a protective portion, which has ...
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WO/2020/007004A1 |
Disclosed are a tunnel boring machine cutter disc, a tunnel boring machine comprising the tunnel boring machine cutter disc, and a cutter replacement method applied to the tunnel boring machine cutter disc. The tunnel boring machine cutt...
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WO/2020/007055A1 |
A combined tension and compression yielding and energy-absorbing grouting anchor bolt for large deformation in surrounding rock, comprising a hollow grouting anchor bolt (6), an anchor bolt locking apparatus, a plurality of yielding grou...
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WO/2020/001798A1 |
The invention relates to a slipform concrete structure (12), and a method of operating a slipform apparatus (10) for constructing a slipform concrete structure (12). The slipform apparatus (12) comprising a platform (10) and a lift devic...
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WO/2019/245146A1 |
The present invention relates to a system for monitoring displacements in a mine and, more specifically, to an ICT-based system for measuring and monitoring, in real time, displacements in an underground mine. The purpose of the present ...
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WO/2019/244124A1 |
The invention concerns a form work (1) for the production of concrete articles comprising: • at least one supporting beam (10); • at least one panel (20) which has an outer surface (23 a) designed to be in contact with a concrete cas...
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WO/2019/237908A1 |
Disclosed is a blocking and drainage combined treatment method for water leakage at a construction joint of a secondary lining of a tunnel. According to the method, water is blocked by means of an anchor bolt (3) and a rubber waterstop (...
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