Abstract: The invention relates to a method of drilling ground along a drilling direction, the method comprising: providing at least first and second drill tubes (40, 42); providing an articulated and motorized manipulator arm (12) having a gripper member (30); using the gripper member (30) to take hold of the first drill tube (40); moving the gripper member in the drilling direction so as to drive the first drill tube into the ground, the gripper member releasing the first drill tube; then taking hold of the second drill tube and fastening the second drill tube to the first drill tube; and moving the gripper member so as to drive the first and second drill tubes into the ground.

Abstract: A drilling machine (10) for making an excavation in ground (S) in a vertical drilling direction (F). The drilling machine (10) includes: a support (12) having a longitudinal direction (L); a drilling module (14) provided with cutter members (16), the drilling module being movable in translation relative to the support; and a movement device arranged between the support and the drilling module in order to move the drilling module (14) relative to the support along the longitudinal direction of the support. The machine is characterized by the fact that the movement device includes a damper (70) for damping the vibration generated by the drilling module while drilling.

Abstract: A drilling machine for drilling ground in a vertical direction, the machine including: an anchor module having front and rear faces, the anchor module including an anchor device having front and rear anchor pads that are deployable in a deployment direction, to bear against walls of the excavation to hold the anchor module stationary in the ground. The anchor module further includes: a frame carrying the front and rear anchor pads, the frame supporting the drilling module; and an actuator device to which the front and rear anchor pads are fastened, the actuator device being movable relative to the frame in a movement direction that extends transversely to the longitudinal direction; whereby the assembly constituted by the front anchor pad, the rear anchor pad, and the actuator device is movable in the movement direction relative to the frame and the drilling module.

Abstract: A drilling machine (10) for making an excavation in ground in a drilling direction that is substantially vertical, the drilling machine including: an anchor module (22) having at least one anchor element for preventing the anchor module from moving relative to the walls of the excavation in the drilling direction, the anchor module having a longitudinal direction that is substantially vertical; a drilling module (12) provided with cutter members, the drilling module being movable in translation relative to the anchor module in the drilling direction; and a movement device (50) arranged between the anchor module and the drilling module in order to move the drilling module in translation relative to the anchor module in the drilling direction. The machine is suspended from a lift cable (70) that is fastened to the drilling module (12).

Abstract: The invention relates to the field of excavation systems, and more particularly to excavation systems including tools for excavation by electric pulses. An excavation system of the invention comprises a support frame (34), a hydraulic circuit with a pump, and first and second excavation tools.

Abstract: The invention relates to a drilling machine (10) for making an excavation in ground in a drilling direction, said drilling machine comprising: an anchor module (12) having an anchor device for preventing the anchor module from moving in the drilling direction relative to the ground by bearing against one of the walls of the excavation; a drilling module (20) provided with cutter members connected to the anchor module while being movable in translation relative to the anchor module; and movement means (35) for moving the cutter members in translation relative to the anchor module. The drilling module is also hinged relative to the anchor module, and the drilling machine comprises first path correction means (40) for causing the drilling module to pivot relative to the anchor module about a pivot axis (X) perpendicular to the drilling direction.

Abstract: The invention relates to a drilling machine (10) for drilling ground (S) in a vertical drilling direction (F), the machine comprising: an anchor module (30) having a front face (32) and a rear face (34), the anchor module comprising at least one anchor device (40) having at least one front anchor pad (42) and at least one rear anchor pad (44) that are deployable in a deployment direction (D1) extending transversely to the longitudinal direction (L) of the drilling machine (10) so as to bear against walls (P1, P2) of the excavation (E) in order to hold the anchor module (30) stationary in the ground.

Abstract: The invention relates to a drilling machine (10) for making an excavation in ground in a drilling direction that is substantially vertical, said drilling machine comprising: an anchor module (22) having at least one anchor element for preventing the anchor module from moving relative to the walls of the excavation in the drilling direction, the anchor module having a longitudinal direction that is substantially vertical; a drilling module (12) provided with cutter members, the drilling module being movable in translation relative to the anchor module in the drilling direction; and a movement device (50) arranged between the anchor module and the drilling module in order to move the drilling module in translation relative to the anchor module in the drilling direction. The invention is characterized by the fact that the machine is suspended from a lift cable (70) that is fastened to the drilling module (12).

Abstract: The invention relates to a drilling machine (10) for making an excavation in ground in a drilling direction, said drilling machine comprising: an anchor module (12) having an anchor device for preventing the anchor module from moving in the drilling direction relative to the ground by bearing against one of the walls of the excavation; a drilling module (20) provided with cutter members connected to the anchor module while being movable in translation relative to the anchor module; and movement means (35) for moving the cutter members in translation relative to the anchor module. The drilling module is also hinged relative to the anchor module, and the drilling machine comprises first path correction means (40) for causing the drilling module to pivot relative to the anchor module about a pivot axis (X) perpendicular to the drilling direction.

Abstract: The invention relates to a concreting installation for concreting an excavation. The installation includes a concreting column having a top end arranged to be open in order to be at atmospheric pressure, and at least one controlled retention device situated at a distance from the open top end of the concreting column and adapted, in at least one configuration, to retain a volume of concrete inside the column. The invention also relates to a method of concreting an excavation.

Abstract: The present invention relates to a drilling machine (10) for making an excavation in ground (S) in a vertical drilling direction (F), said drilling machine (10) comprising: a support (12) having a longitudinal direction (L); a drilling module (14) provided with cutter members (16), the drilling module being movable in translation relative to the support; and a movement device arranged between the support and the drilling module in order to move the drilling module (14) relative to the support along the longitudinal direction of the support. The invention is characterized by the fact that the movement device includes damper means (70) for damping the vibration generated by the drilling module while drilling.

Abstract: The invention relates to the field of excavation systems, and more particularly to excavation systems including tools for excavation by electric pulses. An excavation system of the invention comprises a support frame (34), a hydraulic circuit with a pump, and first and second excavation tools.

Abstract: A device (10) for treating a portion of soil comprises a rotary shaft (20), at least one deployable mixer tool (40) secured to the rotary shaft (20), and a longitudinal pipe (22) for injecting a fluid in the proximity of the mixer tool (40). According to the invention, the treatment device (10) further includes a boring tool (24) situated at the bottom end of the shaft (20), an outer tubular element (30) extending parallel to the rotary shaft (20), the rotary shaft (20) being arranged inside said tubular element (30), and a coupling system (50) between the rotary shaft (20) and the tubular element (30). In a first configuration, the coupling system (50) is suitable for constraining the tubular element (30) and the rotary shaft (20) to move together in rotation about the main axis (X), in at least one direction of rotation, and for constraining the tubular element (30) and the rotary shaft (20) to move together in translation along the main axis (X), at least in the downstream direction.

Abstract: The invention relates to a method of drilling ground along a drilling direction, the method comprising: providing at least first and second drill tubes (40, 42); providing an articulated and motorized manipulator arm (12) having a gripper member (30); using the gripper member (30) to take hold of the first drill tube (40); moving the gripper member in the drilling direction so as to drive the first drill tube into the ground, the gripper member releasing the first drill tube; then taking hold of the second drill tube and fastening the second drill tube to the first drill tube; and moving the gripper member so as to drive the first and second drill tubes into the ground.

Abstract: An excavator machine that includes components such as: a suspended casing having a top end and a bottom end; at least one cable that extends above the casing, where the cable is under tension and has a bottom end that is fastened to the top end of the casing; and a cutter device that is arranged at the bottom end of the casing. The excavator machine further includes: a carriage that is mounted to slide along the cable; a device for moving the carriage along the cable; and a locator device for determining the three-dimensional position of the carriage.

Abstract: The invention relates to a concreting installation for concreting an excavation. The installation includes a concreting column having a top end arranged to be open in order to be at atmospheric pressure, and at least one controlled retention device situated at a distance from the open top end of the concreting column and adapted, in at least one configuration, to retain a volume of concrete inside the column. The invention also relates to a method of concreting an excavation.

Abstract: The invention relates to an excavator machine (10) comprising: a suspended casing (12) having a top end (14) and a bottom end (16); at least one cable (30, 32, 34, 36) extending above the casing, said cable being under tension and having a bottom end (30a, 32a, 34a, 36a) fastened to the top end of the casing; and a cutter device (18) arranged at the bottom end of the casing. The invention is characterized in that the machine further comprises: a carriage (50) that is mounted to slide along the cable; a device (60, 62) for moving the carriage along the cable; and a locator device for determining the three-dimensional position of the carriage.

Abstract: A device (10) for treating a portion of soil comprises a rotary shaft (20), at least one deployable mixer tool (40) secured to the rotary shaft (20), and a longitudinal pipe (22) for injecting a fluid in the proximity of the mixer tool (40). According to the invention, the treatment device (10) further includes a boring tool (24) situated at the bottom end of the shaft (20), an outer tubular element (30) extending parallel to the rotary shaft (20), the rotary shaft (20) being arranged inside said tubular element (30), and a coupling system (50) between the rotary shaft (20) and the tubular element (30). In a first configuration, the coupling system (50) is suitable for constraining the tubular element (30) and the rotary shaft (20) to move together in rotation about the main axis (X), in at least one direction of rotation, and for constraining the tubular element (30) and the rotary shaft (20) to move together in translation along the main axis (X), at least in the downstream direction.

Abstract: The invention relates to a vibrator device for a vibratory compacting machine, said device comprising: a tubular body extending longitudinally and having a bottom end; at least one first hydraulic motor disposed in the tubular body and comprising a rotor and a stator; an eccentric member arranged inside the tubular body between the bottom end and the first hydraulic motor, said eccentric member being adapted to be rotated by the rotor of the first hydraulic motor so as to generate vibration. The invention is characterized in that the stator of the first hydraulic motor is constituted by the tubular body.

Abstract: The invention relates to a machine for scraping away sediment or the like deposited on the bottom of a gallery. The machine comprises: a first movable body suitable for moving over the bottom portion of the wall of the gallery; first movement means for moving said first movable body; scraper means for detaching sediment from the bottom; first buffer storage means mounted on said first movable body; first transfer means for transferring detached sediment into said first storage means; second transfer means for transferring sediment stored in said first buffer storage means to the outside of said first movable body; a second movable body; second movement means; and second storage means mounted on said second movable body to collect the transferred sediment.