A plasma tunnel boring machine including a plurality of plasma torches on the cutting head, and a plurality of nozzles on the cutting head to provide a stream to cool an area while the plasma torches are active, and a tractor providing propulsion to the cutting head, the tractor to move the cutting head to cut a tunnel.

A tunnel boring device for laying a pipeline in the ground using a boring tool, having; a feed line for supplying a boring fluid to the boring tool; a section, arranged at the rear of the boring tool, for receiving the ground cuttings, wherein the region of the boring tool and the section are filled with boring fluid, with a pressure that corresponds to the pressure in the ground; at least a jet pump for removing the boring fluid mixed with the cuttings; at least one conveying line for removing the boring fluid mixed with cuttings, this line being connected to the delivery side of the pump connected to the section via a suction line. The jet pump is connected to a drive line via which a driving fluid is supplied to the jet pump; the pump is arranged outside then section; and the suction line contains a shutoff valve.

A tunnel boring device for laying a pipeline in the ground using a boring tool, having; a feed line for supplying a boring fluid to the boring tool; a section, arranged at the rear of the boring tool, for receiving the ground cuttings, wherein the region of the boring tool and the section are filled with boring fluid, with a pressure that corresponds to the pressure in the ground; at least a jet pump for removing the boring fluid mixed with the cuttings; at least one conveying line for removing the boring fluid mixed with cuttings, this line being connected to the delivery side of the pump connected to the section via a suction line. The jet pump is connected to a drive line via which a driving fluid is supplied to the jet pump; the pump is arranged outside then section; and the suction line contains a shutoff valve.

A tunnel boring machine includes: a shield body; a cutterhead assembly, a first drive mechanism; a second drive mechanism; and a third dive mechanism. The cutterhead assembly includes a main cutterhead and a plurality of auxiliary cutterheads. The main cutterhead is rotatably arranged at a front side of the shield body and defines a soil chamber between the main cutterhead and the shield body, and is movable along an up-down direction. The plurality of auxiliary cutterheads are rotatably arranged in the soil chamber, and adjacent to a bottom of the shield body and arranged at left and right sides of a vertical central line of the main cutterhead. A rotation diameter of the main cutterhead is greater than a rotation diameter of the auxiliary cutterhead, and the rotation diameter of the main cutterhead is the same as a maximum width of the shield body.

The invention relates to an automated device for drilling a hole in the vault and walls of a tunnel and for installing an anchoring element in said hole, characterized in that it comprises: a robot (5) comprising a base (50), a robotic arm (51) extending from the base and a multifunctional head (52) arranged at the end of the arm and movable over 360 degrees, said multifunctional head comprising a drilling means (520), a percussion means (521) suitable for inserting an anchoring element in the hole, and a vision system (522), an elevating platform (1) bearing a device (2) for guiding in translation the base of the robot, a control unit suitable for communicating with a controller of the robot and comprising a processor configured to determine in real time the position of the robot in a three-dimensional reference frame of the tunnel and a man-machine interface.

The invention relates to an automated device for drilling a hole in the vault and walls of a tunnel and for installing an anchoring element in said hole, characterized in that it comprises: a robot (5) comprising a base (50), a robotic arm (51) extending from the base and a multifunctional head (52) arranged at the end of the arm and movable over 360 degrees, said multifunctional head comprising a drilling means (520), a percussion means (521) suitable for inserting an anchoring element in the hole, and a vision system (522), an elevating platform (1) bearing a device (2) for guiding in translation the base of the robot, a control unit suitable for communicating with a controller of the robot and comprising a processor configured to determine in real time the position of the robot in a three-dimensional reference frame of the tunnel and a man-machine interface.

A tunnel boring machine includes: a shield body; a cutterhead assembly, a first drive mechanism; a second drive mechanism; and a third dive mechanism The cutterhead assembly includes a main cutterhead and a plurality of auxiliary cutterheads. The main cutterhead is rotatably arranged at a front side of the shield body and defines a soil chamber between the main cutterhead and the shield body, and is movable along an up-down direction. The plurality of auxiliary cutterheads are rotatably arranged in the soil chamber, and adjacent to a bottom of the shield body and arranged at left and right sides of a vertical central line of the main cutterhead. A rotation diameter of the main cutterhead is greater than a rotation diameter of the auxiliary cutterhead, and the rotation diameter of the main cutterhead is the same as a maximum width of the shield body.

A squeezing device for an underground project, comprising a guide body, a vibration system, a lubricating system, a guide system, a cutting mechanism and a gate, wherein the vibration system is located on four walls of the guide body, the lubricating system is internally provided with a lubricating pipeline along the four walls of the guide body and communicates with a corresponding lubricating nozzle, the guide system is located on four walls at a front end of the guide body, and the cutting mechanism is located at a front end of an inner cavity of the guide body, and the gate is located in a functional bin.

The invention relates to a tunnel boring device for creating a bore from a starting point to a target point in the ground, along a predefined boring line by advancing the tunnel boring device in order to create a tunnel or for laying a pipeline in the ground using a boring tool to break up the ground; having at least one feed line for supplying a boring fluid to the boring tool; having at least one section, arranged at the rear of the boring tool, for receiving the ground which has been broken up and is present in the form of cuttings, wherein the region of the boring tool and the at least one section are essentially filled with boring fluid, and the boring fluid is provided in the region of the boring tool and within the at least one section with a pressure that essentially corresponds to the pressure in the ground at the heading face; having at least one pump for removing, from the section, the boring fluid mixed with the cuttings; having at least one conveying line for removing, from the bore, the boring fluid mixed with cuttings, this line being connected to the delivery side of the at least one pump, and wherein the at least one pump is connected to the at least one section via at least one suction line. In that context, it is provided that the pump is a jet pump which is connected to a drive line via which a driving fluid is supplied to the jet pump; that the at least one pump is arranged outside the at least one section; and that the at least one suction line contains at least one shutoff valve with which the suction line can be shut off.

The invention relates to an automated device for drilling a hole in the vault and walls of a tunnel and for installing an anchoring element in said hole, characterized in that it comprises: a robot (5) comprising a base (50), a robotic arm (51) extending from the base and a multifunctional head (52) arranged at the end of the arm and movable over 360 degrees, said multifunctional head comprising a drilling means (520), a percussion means (521) suitable for inserting an anchoring element in the hole, and a vision system (522), an elevating platform (1) bearing a device (2) for guiding in translation the base of the robot, a control unit suitable for communicating with a controller of the robot and comprising a processor configured to determine in real time the position of the robot in a three-dimensional reference frame of the tunnel and a man-machine interface.