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 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: 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: 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: The helical drill bit defines a helical end section of a helical structure formed at its periphery by an auger of an excavation assembly, and it is associated or associate with a support portion of the auger. Such a support portion defines a proximal section of the helical structure, which has an extension substantially centred around a longitudinal axis (X-X). The helical drill bit is adapted to rotate about the longitudinal axis (X-X) together with the support portion so as to drill a hole in the ground. The helical end section extends around an extremity axis (Y-Y; ?-?) that is not aligned relative to the longitudinal axis (X-X).

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: 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: Equipment for the construction of piles includes a drilling rod and a tool (10) mounted at a lower end thereof. The tool includes a hollow central shaft (11) with a door (18) for the concrete; a screw (12) integral with the shaft (11); a compactor (13) positioned along the screw (12); a base (14) of semicircular shape provided at the lower end of the screw (12); a plate (15) superimposed under the base (14) and rotating around the shaft (11) for alternatively assuming an open position, in condition of excavation wherein it superimposes on the base, and a reclosed position, in condition of compaction wherein it forms a surface circular with the base (14). Excavation teeth (16) are fixed to the lower end of the tool and an additional tooth (19) is constrained to the plate (15) that during the casting is outside of the tool in the condition of compaction.

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: 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: High pressure pumps for injecting cement mixtures are provided. Such pumps are configured so that the frequency and costs of servicing are greatly reduced.

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 (5, 9) proper to the drilling device. Each of the data-processing units (2a, 2b) is redundant 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 (5, 9) proper to the drilling device through the electronic data-exchange lines that are redundant in a number equal to the multiplicity of the data-processing units (2a, 2b).

Abstract: A cutting/mixing tool for thin diaphragm walls is mounted at the end of at least one drilling rod (47) moved by a slidable assembly (42, 62) along a tower (41), carried by an operating drilling machine (40). The tool (45) has a body (10), which bears in its central part two digging/mixing wheels (20a, 20b) provided on the periphery with cutters (82) and set alongside one another at a minimum distance (d) and coaxial about an axis (x) substantially perpendicular to the direction of digging (z). The wheels (20a, 20b) project from slits (81) of the body (10), which contains at least partially means (1-4, 50-52) for transmission of motion to the wheels, the devices being positioned externally with respect to the wheels.

Abstract: A supporting and guiding device for power lines 2 is intended for use in association with an excavation tool 15 mounted on a drilling machine 1. The device is formed by at least one supporting branch 4, having spacer elements 3, wherein a cable 16 is inserted into at least one housing in said spacer 3, and at least one supply hose 22 for the at least one line 2. The supply hose 22 contains hydraulic hoses and/or electric cables for signal transmission. The device includes transversal connection elements or cross members 42 which are adapted to support supply hoses 22 and are connected to the branch 4. Cable 16 of branch 4 runs through each spacer 3; also, the same cable 16 is subject to a preload generated by the insertion of at least one tensioning element.

Abstract: A hydraulic motor or pump includes eccentric shafts arranged in a planet position with respect to the output shaft, subject to the action of two propelling members for each shaft, which are arranged in a tangential position with respect to the output shaft and act on intermediate planetary fixed parts alternated with the shafts. The propelling members receive flow of pressurized fluid regulated by rotatory openings, which connect the propelling members to the pressure circuit or to the discharge one. The motor can be connected, through the eccentric shafts, to ordinary or planetary gearings. The gearing presents an actual piston displacement and one or two different equivalent piston displacements. The shape of the motor is annular, or sectoral, with a circular open space available inside the motor for different applications. The number of the planet shafts has no limits, since they independently transmit the torque-allowing annular shapes of any size.

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 machine for the drilling of the ground includes a guide tower (2) along which slides a group (3) for the handling of a battery of drilling rods (5) which moves along guides (21) of the tower. The group includes a sleeve (31) which gives rotation to a tube (4) to the lower part of which can be constrained at least a drilling rod (5) with a digging tool (6) or directly a digging tool (6).

Abstract: An apparatus for drilling the ground, in particular for the installation of foundation piles, includes a drilling turret (2) with a vertical guiding antenna (3), a rotary head for driving drilling batteries including a continuous ground drilling rotary propeller (5) housed inside at least one covering tube (7). A inner drive is adapted to drive said propeller (5), and a second external drive is connected to the tube (7) and allowing movement thereof, a driving cab (8) for an operator, which includes all the manipulators for operating the machine and the systems for displaying measured parameters. The apparatus further includes a system for controlling the excavation parameters, which is enabled to receive information from the drilling parameter control sensors.

Abstract: A device for measuring the torque or force exerted by a drilling machine during a rotation, driving or lifting of a tool. The measuring device includes an engaging device with a drilling battery or with a shaft of at least a drilling equipment or rotary of the machine the engaging device is susceptible of symmetrically or axial-symmetrically locking the drilling battery or the shaft preventing the rotation and/or the axial displacement in a position in correspondence to the tool. The engaging device is associated with at least a transducer for the detection of at least a maximum torque or of at least a maximum force exerted by the machine; and the measuring device is fixedly constrained to the drilling battery or to the shaft.

Abstract: A modular system of multipurpose rods for drilling soil is constituted by rods (1) crossed by an internal passage (2) for the passage of concrete, of substantially cylindrical shape, that completely crosses the rod; each of the rods is provided at the endings with a male insert (5) and a female insert (6) respectively, adapted to be plugged in one to the other for permitting the assembly in batteries of any length. The inserts (5, 6) are provided with transmitters (11, 11a) for transmitting the rotation along the whole battery of rods (1) and arranged for fixing elements that reduce the internal passage (2).