A mining system includes: a first tunnel that reaches a dump site and includes a first road surface; a second tunnel that crosses the first tunnel, reaches a mining site, and includes a second road surface positioned above the first road surface; a frame that includes a lower surface provided above the first road surface of the first tunnel and forming a transport passage between the first road surface and the lower surface and an upper surface forming a work road surface, on which a loading machine operates, together with the second road surface; and a moving vehicle that is capable of traveling on the first road surface and is capable of passing through the transport passage.

A mining system includes: a first tunnel that reaches a dump site and includes a first road surface; a second tunnel that crosses the first tunnel, reaches a mining site, and includes a second road surface positioned above the first road surface; a frame that includes a lower surface provided above the first road surface of the first tunnel and forming a transport passage between the first road surface and the lower surface and an upper surface forming a work road surface, on which a loading machine operates, together with the second road surface; and a moving vehicle that is capable of traveling on the first road surface and is capable of passing through the transport passage.

An apparatus, rock drilling rig, method and computer program for executing navigation for a rock drilling rig in a mine tunnel. The rock drilling rig is positioned at faces of rounds and is navigated before initiating drilling. The navigation is executed without a predetermined tunnel line. The realized tunnel line is formed by combining navigation data on several rounds. Length and direction of the round to be drilled next may be adjusted according to need.

An apparatus, rock drilling rig, method and computer program for executing navigation for a rock drilling rig in a mine tunnel. The rock drilling rig is positioned at faces of rounds and is navigated before initiating drilling. The navigation is executed without a predetermined tunnel line. The realized tunnel line is formed by combining navigation data on several rounds. Length and direction of the round to be drilled next may be adjusted according to need.

The present disclosure relates to a technical field of coal mining, in particular to a surrounding rock stability control method adapted for a coal mining area main roadway. The method comprises the following steps: reinforcing support on a roof and two sides of the mining area main roadway on a basis of an original support form; digging a safety roadway along a stop line of a present working face required by coal mine design, and supporting the safety roadway, wherein a protective coal pillar is formed between the safety roadway and the mining area main roadway; performing slitting blasting on the roof in the safety roadway, wherein blast holes are arranged on a roadway corner line on one side of the present working face to form a pre-splitting slit; and performing stoping at a next working face after completing coal mining at the present working face when stoping at the present working face advances to the safety roadway. By cutting the roof and relieving pressure at the stop mining line of the working face, an influence of mining disturbance on stability of the mining area main roadway in the stoping process of the working face is reduced, and by reinforcing support, a yielding deformation capacity of the mining area main roadway is improved, and the stability of the surrounding rock of the mining area main roadway is further improved.

The present disclosure relates to a technical field of coal mining, in particular to a surrounding rock stability control method adapted for a coal mining area main roadway. The method comprises the following steps: reinforcing support on a roof and two sides of the mining area main roadway on a basis of an original support form; digging a safety roadway along a stop line of a present working face required by coal mine design, and supporting the safety roadway, wherein a protective coal pillar is formed between the safety roadway and the mining area main roadway; performing slitting blasting on the roof in the safety roadway, wherein blast holes are arranged on a roadway corner line on one side of the present working face to form a pre-splitting slit; and performing stoping at a next working face after completing coal mining at the present working face when stoping at the present working face advances to the safety roadway. By cutting the roof and relieving pressure at the stop mining line of the working face, an influence of mining disturbance on stability of the mining area main roadway in the stoping process of the working face is reduced, and by reinforcing support, a yielding deformation capacity of the mining area main roadway is improved, and the stability of the surrounding rock of the mining area main roadway is further improved.

The present invention relates to a reinforcement system at a railway tunnel section passing through a karst cave with a large dip angle and a construction method. The reinforcement system of the present invention can solve the problems of downward mud filling, watertightness, etc. of a top through structures of an umbrella arch, a concrete layer, a flexible buffer layer and a protective layer at the top, at a karst cave, of a tunnel, solve the problem of upward mud inrush at a bottom through structures of an anchor cable, a ring beam and a foundation pad at the bottom of the tunnel, guarantee stability of an arch bridge by erecting “a triple arch bridge” in a middle and adding a vertical bearing wall under the arch bridge, and make a railway safely cross the mud-inrush karst cave by safely laying a ballastless track on the bridge.

The present invention relates to a reinforcement system at a railway tunnel section passing through a karst cave with a large dip angle and a construction method. The reinforcement system of the present invention can solve the problems of downward mud filling, watertightness, etc. of a top through structures of an umbrella arch, a concrete layer, a flexible buffer layer and a protective layer at the top, at a karst cave, of a tunnel, solve the problem of upward mud inrush at a bottom through structures of an anchor cable, a ring beam and a foundation pad at the bottom of the tunnel, guarantee stability of an arch bridge by erecting “a triple arch bridge” in a middle and adding a vertical bearing wall under the arch bridge, and make a railway safely cross the mud-inrush karst cave by safely laying a ballastless track on the bridge.

Provided are methods and products for rapid, reliable, and accurate monitoring and detecting of convergence in mining and civil engineering applications. A sensor, such as a scanning laser device, is moved through a tunnel, either automatically, autonomously, or with manual guidance. The sensor is configured to acquire 3D point clouds of all or a portion of a tunnel, at selected times. The 3D point cloud data is used to compute a set of indicators, which are local descriptors of the environment along the tunnel. The indicators are then amalgamated to estimate the probability that convergence has occurred in a given region. In one embodiment, the indicators are fused together using a Bayes network.

Provided are methods and products for rapid, reliable, and accurate monitoring and detecting of convergence in mining and civil engineering applications. A sensor, such as a scanning laser device, is moved through a tunnel, either automatically, autonomously, or with manual guidance. The sensor is configured to acquire 3D point clouds of all or a portion of a tunnel, at selected times. The 3D point cloud data is used to compute a set of indicators, which are local descriptors of the environment along the tunnel. The indicators are then amalgamated to estimate the probability that convergence has occurred in a given region. In one embodiment, the indicators are fused together using a Bayes network.