In a device and a method for continuously driving a tunnel along a desired setpoint trajectory there is provision to influence pressing forces which are applied to installed tubbing segments by compactors using a control circuit, wherein, during the driving and during the installation of tubbing rings, an actual trajectory of the device remains in a region which is permissible for maintaining the desired set point trajectory.

The present invention discloses electromechanical equipment integrating functions of anchor protection and supporting, including a suspension support system, a power system, an advanced support system, a subsidiary transport system and an anchoring robot system. The suspension support system is fixed on a top end of a coal mining tunnel through an anchor rod to provide support for the system. The power system is mounted at a tail end of a system main beam in the suspension support system. The advanced support system is mounted at a front end of the system main beam in the suspension support system. The subsidiary transport system is mounted on the system main beam in the suspension support system at a rear side of the advanced support system. The anchoring robot system is mounted on the system main beam in the suspension support system between the power system and the subsidiary transport system. Furthermore, the present invention has good turning and slope changing performance, and the transport efficiency of the equipment is high. In addition, an anchoring robot working platform has a buffering function, the anchoring is stable, and the operation efficiency is high.

The present invention discloses electromechanical equipment integrating functions of anchor protection and supporting, including a suspension support system, a power system, an advanced support system, a subsidiary transport system and an anchoring robot system. The suspension support system is fixed on a top end of a coal mining tunnel through an anchor rod to provide support for the system. The power system is mounted at a tail end of a system main beam in the suspension support system. The advanced support system is mounted at a front end of the system main beam in the suspension support system. The subsidiary transport system is mounted on the system main beam in the suspension support system at a rear side of the advanced support system. The anchoring robot system is mounted on the system main beam in the suspension support system between the power system and the subsidiary transport system. Furthermore, the present invention has good turning and slope changing performance, and the transport efficiency of the equipment is high. In addition, an anchoring robot working platform has a buffering function, the anchoring is stable, and the operation efficiency is high.

A mesh handler for a mining machine includes a generally U-shaped frame arranged for receiving and positioning at least one mesh against a roof portion of an underground tunnel. The frame includes at least one generally U-shaped rail and a guide mechanism arranged for guiding the mesh along the rail in a direction substantially perpendicular to a longitudinal direction of the mining machine. Moreover, a mining machine including the mesh handler is provided.

A mesh handler for a mining machine includes a generally U-shaped frame arranged for receiving and positioning at least one mesh against a roof portion of an underground tunnel. The frame includes at least one generally U-shaped rail and a guide mechanism arranged for guiding the mesh along the rail in a direction substantially perpendicular to a longitudinal direction of the mining machine. Moreover, a mining machine including the mesh handler is provided.

A pulsation-free wet spraying machine resolves the issue of pulsing during pumping of a concrete spraying machine The wet spraying machine includes a frame, a pumping mechanism, a swing mechanism and a hydraulic system, wherein the pumping mechanism includes a hopper, a material chamber, a concrete feeding mechanism, an auxiliary feeding mechanism and a distribution valve. The hopper of the pumping mechanism is disposed above the material chamber. The distribution valve is disposed inside the material chamber, the concrete feeding mechanism and the auxiliary feeding mechanism both include a hydraulic cylinder, a concrete piston and a concrete cylinder, a discharge pipe is a three-way pipe fixed at a side surface of the material chamber, an auxiliary discharge pipe of the discharge pipe is connected with an auxiliary concrete cylinder, and a through hole is disposed on the auxiliary concrete cylinder. The swing mechanism includes a swing hydraulic cylinder, a swing arm and a swing hydraulic cylinder base, an auxiliary piston rod of the auxiliary feeding mechanism passes through a mandrel to push an auxiliary concrete piston to move inside the auxiliary concrete cylinder. In addition, the pulsation-free wet spraying machine stably feeds a material, has a compact structure, and is wear-resistant.

An active temporary roof support apparatus for attachment to a mining machine includes at least one set of support members, each set including at least a first support member and a second support member for supporting the roof of an underground tunnel. A drive assembly is arranged to drive the set of support members, such that the first and second support members are sequentially moved for engaging the roof so that the roof is supported by at least one support member during an excavation operation of the mining machine. A mining machine and a corresponding method is also provided.

An active temporary roof support apparatus for attachment to a mining machine includes at least one set of support members, each set including at least a first support member and a second support member for supporting the roof of an underground tunnel. A drive assembly is arranged to drive the set of support members, such that the first and second support members are sequentially moved for engaging the roof so that the roof is supported by at least one support member during an excavation operation of the mining machine. A mining machine and a corresponding method is also provided.

A rock bolt and meshing assembly is arranged for installation of a meshing sheet against a surface of rock strata. The rock bolt includes an adapter having a first portion connectable to a trailing end of an elongate shaft of the rock bolt and means configured to receive and mount a meshing clamp to overlay a second section of meshing sheet against an already laid first section of meshing sheet.

A tunnel system includes at least two adjacent tunnel lining systems and a sealing system. Moreover, the tunnel lining systems can include plural tunnel lining segments.