Apparatus and methods for the installation of pipe pilings into the ground for use as structural building foundations, geothermal piles, or both, are disclosed. In addition to specialized fittings for pipe pile assemblies, the inventions include specialized drive mechanisms used in conjunction with rotary or vibratory motors. Methods of installing pipe pilings are further improved with the disclosure of methods of adding grout or similar materials during or after installation of the piles.

Apparatus and methods for the installation of pipe pilings into the ground for use as structural building foundations, geothermal piles, or both, are disclosed. In addition to specialized fittings for pipe pile assemblies, the inventions include specialized drive mechanisms used in conjunction with rotary or vibratory motors. Methods of installing pipe pilings are further improved with the disclosure of methods of adding grout or similar materials during or after installation of the piles.

The invention relates to a machine (10) for making columns in ground, the machine comprising a carrier (12) having a mast (14) extending along a longitudinal direction; a movable carriage (16) mounted to slide along the mast (14); a ground perforation tool (20) extending along a longitudinal axis parallel to said longitudinal direction and secured to said movable carriage, presenting a top end connected to building material feed means, and a bottom end provided with an orifice (28) for injecting the first building material; a rotary drive system (18) for driving the perforation tool (20) in rotation; and a body (40) extending around the perforation tool (20) so that the perforation tool is suitable for sliding through said body. According to the invention, the machine has a coupling system (60) for coupling together the body (40) and the perforation tool (20) in translation and in rotation.

Apparatus and methods for the installation of pipe pilings into the ground for use as structural building foundations, geothermal piles, or both, are disclosed. In addition to specialized fittings for pipe pile assemblies, the inventions include specialized drive mechanisms used in conjunction with rotary or vibratory motors. Methods of installing pipe pilings are further improved with the disclosure of methods of adding grout or similar materials during or after installation of the piles.

The invention relates to a construction machine for introducing a displacement tube into the ground, wherein the displacement tube comprises a tube base body and, at its lower end, a closure device which comprises at least one closure flap which is adjustable between a closed position, in which the displacement tube is closed downwards by the at least one closure flap, and an open position, in which filling material is discharged from the displacement tube into the ground for forming a filling material column, wherein the construction machine comprises a feed drive for introducing and retracting the displacement tube into and out of the ground, respectively. According to the invention, it is provided that an actuating unit with at least one pressing-on element is arranged on the construction machine, by means of which the at least one closure flap is adjustable from the open position into its closed position and retainable in said position before contacting the ground at least until the closed closure flap penetrates into the ground. The invention further relates to a method for creating a filling material column.

The invention relates to a handling device for gripping and inserting a pile tube into a borehole in the ground to form a foundation pile, comprising a base frame, a gripping device for gripping and holding the pile tube, and a holding element for releasably connecting the base frame to a hoist, in particular a suspension rope. According to the invention, it is provided that at least one inlet device for supplying a curable medium is arranged on the base frame in an upper region and at least one outlet device for the curable medium to the pile tube is arranged in a lower region.

An octagonal Ultra-High Performance Concrete prestressed pile system for deep foundation applications utilizes an octagonal cross-sectional geometry with 30-inch flat-to-flat external diameter and central void of 26-32 inches diameter optimized for material efficiency and structural performance. The system employs Ultra-High Performance Concrete with compressive strength exceeding 18,000 pounds per square inch and conventional carbon-steel prestressing strands to provide structural capacity equivalent to steel pile systems. The octagonal geometry with central void targets approximately one cubic yard of UHPC per fifty feet of pile length, enabling direct economic comparison with steel alternatives while providing enhanced durability and reduced dead weight by up to 75%. The system includes modular splice connections for extended length capability and addresses multiple market sectors including high-rise buildings, bridges, industrial facilities, and general infrastructure projects. The octagonal configuration with central void provides superior material utilization compared to conventional square and circular pile geometries while maintaining excellent driving characteristics and structural performance.

The invention relates to a method for forming a foundation pile in the ground, in which a drilled hole is created in the ground, a pile tube is gripped by means of a handling device and inserted into the drilled hole, and a curable medium is introduced into an annular space between a wall of the drilled hole and an outer circumference of the pile tube, which medium cures to form the foundation pile. According to the invention, it is provided that the curable medium is introduced into the drilled hole via the handling device.

The invention is stay-in-place cladding for concrete, including reactive and slow-curing concretes, allowing for enhanced strength and durability of the contained concrete by allowing it to cure over time while enabling beneficial chemical reactions. The cladding is perforated with tubes or holes. A preferred embodiment is a caisson for concrete mixtures, where the caisson contains the concrete mixture, and the caisson is deployed in marine or terrestrial environments.