A system for simultaneously driving multiple piles into the ground to create A-frame type structures that are anchored by piles running at angles to one other and to the ground. The system comprises a guide assembly and an actuator for moving piles through the guide assembly and the actuator (such as a meshing gear, ratchet or rollers) that engages a slots or teeth in the side portion of the pile to drive the piles into the ground.

An end point closing wall forming device of an extrusion type underground diaphragm wall comprises a main body (1) and a vibration water spraying device. The vibration water spraying device is fixedly disposed inside the main body (1). The end point closing wall forming device of an extrusion type underground diaphragm wall further comprises a separation device. The separation device is movably sheathed on the outer side of a short edge (11) of the main body (1). Also provided is a method for operating an end point closing wall forming device of an extrusion type underground diaphragm wall.

The present invention relates to a method of power management during pile foundation having a base machine for excavating a borehole and an attachment installed at the base machine for a simultaneous introduction of a casing into the ground, wherein the energy supply for the attachment is at least partially provided by the base machine and a control of the base machine dynamically regulates the energy flow from the base machine to the attachment.

The present invention relates to a method of power management during pile foundation having a base machine for excavating a borehole and an attachment installed at the base machine for a simultaneous introduction of a casing into the ground, wherein the energy supply for the attachment is at least partially provided by the base machine and a control of the base machine dynamically regulates the energy flow from the base machine to the attachment.

The present invention relates to an attachment for drilling and/or foundation work, in particular a casing oscillator or casing rotator, comprising a receiving apparatus for clamping at least one pipe and a drive for generating a rotational movement of the clamped pipe, wherein the attachment comprises at least one integral control unit for an independent carrying out of control functions of the attachment.

The present invention relates to an attachment for drilling and/or foundation work, in particular a casing oscillator or casing rotator, comprising a receiving apparatus for clamping at least one pipe and a drive for generating a rotational movement of the clamped pipe, wherein the attachment comprises at least one integral control unit for an independent carrying out of control functions of the attachment.

A pile assembly to be driven into the ground comprises an elongate member, a drive member, and a plurality of flight members. The drive member is supported by the elongate member to facilitate axial rotation of the elongate member. The plurality of flight members is supported by the elongate member. Axial rotation of the elongate member causes the plurality of flight members to auger the elongate member into the ground. The flight members are arranged to balance the loads on the elongate member as the elongate member is driven into the ground.

A pile assembly to be driven into the ground comprises an elongate member, a drive member, and a plurality of flight members. The drive member is supported by the elongate member to facilitate axial rotation of the elongate member. The plurality of flight members is supported by the elongate member. Axial rotation of the elongate member causes the plurality of flight members to auger the elongate member into the ground. The flight members are arranged to balance the loads on the elongate member as the elongate member is driven into the ground.

A pile driving assembly for installing a pile in an underwater bottom comprises a tubular pile and a hammer for driving the pile into an underwater bottom. The assembly is provided with a soil remover for removing soil inside the pile. The soil remover is located below the hammer and remote from a lower end of the pile in assembled operating condition.

A pile driving assembly for installing a pile in an underwater bottom comprises a tubular pile and a hammer for driving the pile into an underwater bottom. The assembly is provided with a soil remover for removing soil inside the pile. The soil remover is located below the hammer and remote from a lower end of the pile in assembled operating condition.