Abstract: A device is suspended from cables or other flexible or articulated structures, for the mixing in situ of earth for the formation of underground walls or diaphragms includes in its lower part a disaggregator (1) for the disaggregation of the earth. Above the disaggregator is positioned a corrector (5, 13) for the direction of the excavation.

Abstract: A drilling method and device is for the execution of diaphragm walls by cutters, (131, 105, 110) carried by a frame (130) supported by suspension and movers (102). A guide hole (200) is formed as far as the depth specified in the design at the center of the panel to be made. Excavation is started with the introduction into the guide hole (200) of a guide element (101) that is fixed with respect to the tool-holder frame and having geometry such as to copy the guide hole along which it slides during excavation. Excavation is carried out as far as the depth specified in the design. The tool is extracted from the excavation and the excavation is filled with concrete and a panel is formed. The method is repeated so as to form adjacent panels.

Abstract: Equipment serves to form consolidated soil columns having a non-circular cross-section, and includes a mast (2, 8), a rotary (3) which is rotatable and translatable along an axis parallel to the mast, a series of hollow rods (4) temporarily unlockable from the rotary (3), and a device to vary the rotational rate of the rotary in one or more prefixed angular ranges. A rotor (21) is directly secured to one of the rods of the string and operatively coupled to a device (20) generating control signals to vary the rotational speed of the rotary in response to the rotor angular position. A through clamp (10) is mounted to the rotatable mandrel of the rotary and is provided with locking members which can be activated to clamp a rod and make it integral to the rotary, and which can be deactivated to release the rod so as to allow the rotary to move relative to the rod.

Abstract: A device (1) for drilling and tamping grounds is constituted by a tamping tip (1A) rigidly connected to a shaft (3) which constitutes the connection to the end part of a battery of rods moved by a drilling machine, which gives it movement in a vertical direction and a rotation around its longitudinal axis. The battery of rods is inserted into a covering tube (14). Between the tamping tip (1A) and the tube (14) a substantially cylindrical tamping element (9, 9a) is interposed, adapted to define a tamping diameter of the ground which forms the walls of the hole obtained by the device (1) at least equal to the diameter of the tube (14).

Abstract: A device for guiding bundles of parallel ropes, cables, or pipes according to a three-dimensional (or non-planar) path in an earth-digging machine of the type in which provided downstream of the winder assembly (9) for the ropes are at least two sets (5, 7) of guiding sheaves; at least one (7) of the two sets is made up of sheaves of different diameters.

Abstract: A kelly for the realization of bored piles, has a battery of rods (7, 19) displaceably inserted the one into the other and wherein the most inner one (9) supports an excavation tool (5); a rotary table (1), vertically sliding along the drilling mast (2) of the operating machine (3) which bears the kelly, is provided with a rotator (8a) adapted for putting into rotation the battery of rods (7, 19) around its longitudinal axis; a device (10) adapted for displacing and recompacting the rods of the battery and a motor(6) adapted for exerting a traction and a thrust on the rods during the excavation are also provided At least part of the rods (19) of the battery is entirely positioned under the rotary table (1) by which it is put in rotation.

Abstract: An excavation device (1) and profile analysis of the excavation includes a device (1) realizing excavations of prismatic shape and having a frame (3) and a plurality of excavation wheels (2). The frame (3) includes a first upper section (3c), a second intermediate section (3b) and a third lower section (3a. The excavation wheels (2) are positioned at least within said third section (3a). Sensors (4) carry out the measurement of the section and/or the shape of said excavation; the sensors of measure (4) are directed towards the walls of said excavation and measure the profile of said excavation on at least two opposite walls. A method of analysis of a shape and/or a section of an excavation of prismatic shape in the soil includes excavation of the soil through a device (1) having a frame (3) and a plurality of excavation wheels (2).

Abstract: Device (1) for consolidating soils by mechanical mixing and injection of consolidating fluids is designed to be connected to one or more drilling rods and to carry out operations of drilling and mixing. The device has a main body (10), one or more blades (30) (30?) (30?), which are mobile with respect to the body (10) and are constrained by cams (22) to a central structure (20) internal to the body (10). The device (1) has channels for the flow of fluids (40), which are connected in a liquid-tight way to at least one sprayer; a relative motion is generated between the central structure (20) and the external body (10) as a function of the pressure of a liquid introduced into the channels for the flow of fluids (40), which brings about opening of the blades (30) (30?) (30?).

Abstract: A handling system (1?) is for drilling equipment (200) of the ground, in which the drilling equipment (200) slides along a support tower (101, 501) fixed or movable with respect to the ground. The handling system (1?) includes at least one linear actuator (3, 3a, 3b) for handling the digging equipment. The linear actuator (3, 3a, 3b) being temporarily movable and releasable with respect to the tower (101, 501).

Abstract: A multi-function machine for drilling, boring, driving and lifting comprising a translation system (2) which supports a turret (3) motorized and provided with driving cab. A lattice tower type arm is hinged to the frame of the turret and movable between substantially raised and inclined positions. In at least a first configuration the arm is used as a lifting arm. The free upper end of the arm has a head (9) having a system of pulleys and/or transmissions for rope (10). The arm (4) can rotate with respect to the turret (3) to acquire a second configuration of mounting/transport wherein its longitudinal axis is substantially horizontally arranged and turned over toward the front. Ropes and rods are provided (14,16) for bringing the arm from the first to the second configuration and vice-versa.

Abstract: Equipment for drilling secant holes (2) includes by an excavating system (3, 14, 4, 16, and 17) and by a guide system (7, 8), both of which are set in the hole (2) being drilled and in a previously made hole (2?). The two systems are fixed with respect to one another in such a way as to define a pre-set distance between centers of the holes; the excavating system includes a motor (3) and a bit (4) connected thereto, and being completely introduced into the borehole.

Abstract: An electronic control system for drilling devices, includes at least one pair of data-processing units (2a, 2b); a plurality of data-exchange lines, connected to the data-processing units (2a, 2b) for transmission of signals from and to control devices (4a-4c) of the drilling device; and accessories or sensors (5, 9) proper to the drilling device. Each of the data-processing units (2a, 2b) is redundated by the others with one and the same level of hierarchy, and all the data-processing units (2a, 2b) are connected to all the control devices (4a-4c) and to the accessories or sensors (5, 9) proper to the drilling device through the electronic data-exchange lines redundated in a number equal to the multiplicity of the data-processing units (2a, 2b).

Abstract: An injection head includes an upper inlet pipe (12) for receiving fluid from a set of tubular rods which can be mounted above the head, at least a first pipe (13) having a curved intermediate portion (14) which connects the upper inlet pipe (12) to at least one lateral injection nozzle (11), at least a second pipe (15) for conveying a fluid from the inlet pipe (12) to a lower outlet pipe (17) which can be connected to a drilling tool. The injection head also has valve (20-23) which can be actuated to cut off the flow of the fluid towards the lower outlet pipe (17). The valve is located in a position downstream of the upper inlet pipe (12) and above, or upstream of, the lateral nozzles (11) and the second pipes (15).

Abstract: An excavation device (1) and profile analysis of the excavation includes a device (1) realizing excavations of prismatic shape and having a frame (3) and a plurality of excavation wheels (2). The frame (3) includes a first upper section (3c), a second intermediate section (3b) and a third lower section (3a. The excavation wheels (2) are positioned at least within said third section (3a). Sensors (4) carry out the measurement of the section and/or the shape of said excavation; the sensors of measure (4) are directed towards the walls of said excavation and measure the profile of said excavation on at least two opposite walls. A method of analysis of a shape and/or a section of an excavation of prismatic shape in the soil includes excavation of the soil through a device (1) having a frame (3) and a plurality of excavation wheels (2).

Abstract: Excavation equipment for the construction of compaction piles includes a tool mounted at the end of a drilling rod; the tool is constituted by a shaft (10) provided on its end with digging teeth (12) and with at least a plate (14) for collecting debris rotating between an open position during the excavation and closed during the ascent of the tool. A screw (17, 18, 17?, 18?, 20); is of the type having at least two principles (17, 18, 20), in the upper part (20) fixed directly on the shaft (10) and in the lower part (17, 18) fixed on a cylindrical element (16) inserted on the shaft. A compactor (19) is positioned on the screw (17, 18) of the cylindrical element (16). The shaft rotates between two positions displaced between them, one corresponding to the excavation condition and the other to the ascent one; each of the at least two-principle screws of the shaft (20) constitutes the continuation of a corresponding screw (17, 18) of the cylindrical body (16) depending on the angular position of the shaft (10).

Abstract: Excavation and compaction equipment for the construction of piles includes a drilling rod rotating around a rotation axis (A) and a tool (10) mounted at a lower end of the drilling rod. The tool includes a hollow central shaft (11) and provided at its lower end (17) with a door (18) for the outlet of the concrete; at least a screw (12) integral with the shaft (11). A compactor is (13) positioned along the screw (12) and a base (14) of substantially semicircular shape is provided at the lower end of the screw (12). A plate (15) has a shape such that it superimposes under the base (14) and rotates relatively around the shaft (11) for alternatively assuming an open position, in condition of excavation (descent) wherein it superimposes on the base, and a reclosed position, in condition of compaction (ascent) wherein it forms a surface substantially circular with the base (14). Excavation teeth (16) are fixed to the lower end of the tool.

Abstract: A safety device for the emergency interruption of the drilling maneuvering in a drilling machine is provided with a guide tower or mast (17) and a device (10) for realizing the driving in the ground of drilling elements. The device includes at least a frame (12) fixed to the mast and provided with at least an arm or a door (11) rotating around an axis (Y) with respect to the frame. A microswitch (23) is activated by the movements of rotation given to the door (11) for stopping at least some of the dangerous drilling maneuvering.

Abstract: A device for guiding bundles of parallel ropes, cables, or pipes according to a three-dimensional (or non-planar) path in an earth-digging machine of the type in which provided downstream of the winder assembly (9) for the ropes are at least two sets (5, 7) of guiding sheaves; at least one (7) of the two sets is made up of sheaves of different diameters.

Abstract: Described herein is a method and equipment for making an impermeable diaphragm of secant piles, based upon the execution of parallel holes with constant distances between centres, said method and equipment being of the type that uses a drill rod (5) equipped, at the bottom end, with a bit (16) for making adjacent holes (1, 1?, 2) of substantially circular cross section, in which the equipment is constituted by a guide (6, 7), constrained to the drill rod (5), and made up of two elements shaped so as to press against the walls of two adjacent holes (1, 2); the two elements are connected to one another through a slider (20) passing through a vertical opening (21) made between the two holes (1, 2).

Abstract: A pump for digging equipment is for the construction of diaphragms The equipment envisages in its end part drums (10 and 11), provided with bits (12) mounted so that they rotate on their own axes (A) The drums are carried by a top frame (13), mounted within which, in the proximity of the drums, is a centrifugal pump (14). The pump (14) is positioned in such a way that its axis (15) comes to lie in a substantially horizontal plane, parallel to the plane passing through the axes (A) of the bits (12) and is oriented at an angle of between 30° and 60° with respect to the sides of the rectangular section of the excavation, whilst the maximum diameter of the pump and its motor fall within the thickness of the frame (13).