Abstract: Ground treatment assistance method comprising providing a machine comprising a ground treatment tool is provided, providing geographic coordinates of at least one treatment area, determining positioning data of the ground treatment tool using an optical acquisition device, displaying at least a first object representative of the ground treatment tool or of said at least one treatment area on a display device, and positioning said first object on the display device using the previously determined positioning data of the ground treatment tool and the geographic coordinates of said treatment area.

Abstract: The disclosure relates to a method for compacting a soil, wherein: a) a ramming cycle is carried out several times on an impact area of the soil during which: a mass (16) is dropped on the impact area from a predetermined height (A); and after the impact of the mass (16) on the impact area, a point cloud is acquired using a laser scanner in order to obtain a radar image of at least the footprint (E) of the mass in the soil; b) at least one characteristic data of the soil compaction is determined from at least one of the radar images obtained at the end of the ramming cycles.

Abstract: The disclosure relates to a method for compacting a soil, wherein: a) a ramming cycle is carried out several times on an impact area of the soil during which: a mass (16) is dropped on the impact area from a predetermined height (A); and after the impact of the mass (16) on the impact area, a point cloud is acquired using a laser scanner in order to obtain a radar image of at least the footprint (E) of the mass in the soil; b) at least one characteristic data of the soil compaction is determined from at least one of the radar images obtained at the end of the ramming cycles.

Abstract: The disclosure relates to a device for reinforcing a ground on which is disposed a loading structure. Threaded inclusions are disposed vertically within the ground and reinforce said ground. The core diameter of threaded inclusions is between 250 mm and 450 mm and the external diameter is between 350 mm and 600 mm. A load transmitting layer is interposed between the ground and the loading structure disposed thereon, so as to transmit and distribute the load from the loading structure to both the ground and the plurality of inclusions. A ratio between a distance between axes of two adjacent inclusions and the internal diameter of said adjacent inclusions is between 4 and 14, and the inclusions are made from a material having a specified 28-day compressive strength between 5 MPa and 35 MPa.

Abstract: The invention relates to a device for controlling gravel and mud for a compacted gravel column made by wet construction using a drilling system fitted with a vibrator, comprising; a mud collection element (2) defining an internal volume capable of collecting mud and fitted with an orifice through which the vibrator will pass, and at least one gravel guide wall (3) leading to the orifice (5) through which the mud collection element (2) will pass.

Abstract: The disclosure relates to a device for reinforcing a ground on which is disposed a loading structure. Threaded inclusions are disposed vertically within the ground and reinforce said ground. The core diameter of threaded inclusions is between 250 mm and 450 mm and the external diameter is between 350 mm and 600 mm. A load transmitting layer is interposed between the ground and the loading structure disposed thereon, so as to transmit and distribute the load from the loading structure to both the ground and the plurality of inclusions. A ratio between a distance between axes of two adjacent inclusions and the internal diameter of said adjacent inclusions is between 4 and 14, and the inclusions are made from a material having a specified 28-day compressive strength between 5 MPa and 35 MPa.

Abstract: An apparatus including a bore bit comprising a bottom part having an active bottom face and a top face substantially parallel to the active face; a top part fixed to suspension cables and having a bottom face facing the top face of the bottom part; a member for limiting the maximum spacing between the two parts; a cylindrical axial bore passing through both parts; a cylindrical guide penetrating into said bore; and at least one ramp-forming recess and at least one ramp-forming extension for co-operating with said ramp-forming recess in such a manner that movement of the top part towards the bottom part is converted into rotary movement of said top part about the vertical axis, with the end of said rotary movement of the top part imparting rotary movement to the bottom part.

Abstract: The invention provides a bore bit comprising a bottom part having an active bottom face and a top face substantially parallel to the active face; a top part fixed to suspension cables and having a bottom face facing the top face of the bottom part; means for limiting the maximum spacing between the two parts; a cylindrical axial bore passing through both parts; a cylindrical guide penetrating into said bore; and at least one ramp-forming recess and at least one ramp-forming extension for co-operating with said ramp-forming recess in such a manner that movement of the top part towards the bottom part is converted into rotary movement of said top part about the vertical axis, with the end of said rotary movement of the top part imparting rotary movement to the bottom part.