In a foundation for a windmill with a circular or polygonal pedestal for supporting a windmill tower and a plurality of ribs, which project radially outwards from the pedestal, the pedestal is divided into a plurality of circumferential portions, wherein a circumferential portion and a rib are each formed by at least one prefabricated concrete element, respectively, and wherein the prefabricated concrete elements are made of reinforced concrete, which includes a first reinforcement structure, which includes radial tensioning elements, in particular tension rods or tensioning strands, for stressing the prefabricated concrete elements. A second reinforcement structure is also provided, which holds the circumferential portions together and is coupled with the first reinforcement structure, in particular the radial tensioning elements.

A bio-friendly water flow control system can include a portable structure adapted to contain organic waste material. The water flow control system can be configured for deployment outdoors to guide water flow to limit erosion. A portable structure of such a system can include a sheath that is configured to contain waste material within an interior of the sheath. The portable structure may be configured to allow a flow of water into the interior of the sheath. The portable structure may include a waste material that includes processed palm frond particles. The portable structure may be configured to absorb a weight of water at least 50% greater than a dry weight of the portable structure.

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.

A blindside waterproofed building foundation system and method of forming the same are provided. The system includes a lagging wall, a monolithic waterproof layer adjacent to the lagging wall, and a foundation layer adjacent to the monolithic waterproof layer. The system and method provide a monolithic waterproofing layer that can remain adhered to a foundation surface even if the materials used to construct the lagging wall deteriorates, decomposes, or moves over time.

Concrete foundations for supporting towers and other structures under heavy cyclical loads are described. Some or all of the major concrete components, such as the beams and the hubs, that form the foundation are fabricated off-site and then transported to the intended use site for the foundation. The concrete components can be fabricated as pre-cast segments, sections, or pieces, with the pre-cast segments then being assembled in the field at the use site to form each component, and the components then being assembled together to form the foundation. In one embodiment, the beams used in the foundation may have a box-girder construction.

Concrete foundations for supporting towers and other structures under heavy cyclical loads are described. Some or all of the major concrete components, such as the beams and the hubs, that form the foundation are fabricated off-site and then transported to the intended use site for the foundation. The concrete components can be fabricated as pre-cast segments, sections, or pieces, with the pre-cast segments then being assembled in the field at the use site to form each component, and the components then being assembled together to form the foundation. In one embodiment, the beams used in the foundation may have a box-girder construction.

A king pile for a combined wall system includes a first flange, a second flange, and a web. The first flange has a first flange body that is a generally rectangular plate having a first edge, a second edge, and a face. A first king pile interlock is formed integrally with the first flange body at the first edge, and a second king pile interlock is formed integrally with the first flange body at the second edge. The king pile includes a second flange having a second flange body, the second flange body being a generally rectangular plate having a face. The king pile also includes a web. The web may be a generally rectangular plate that is coupled to the face of the first flange body and the face of the second flange body. The first flange, second flange, and web may be formed separately and coupled by welding.

A helical pier and extension shaft, one end of which is formed with a thickened hexagonally shaped female end coupler using a hot forging process that swedges and compresses the walls of the female coupler into a thickened hexagonal configuration, with subsequent heat treatment to recover and enhance yield and tensile strength to the entire main body section and female end coupler of the helical pier and extension shafts. A corresponding hexagonally shaped male coupler may be milled and inertia friction welded to the opposite end of each extension shaft, or alternatively hot forged and internally upset as an integral homogeneous part of each extension shaft, thereby completing construction of the extension shaft with opposing corresponding male and female hexagonal couplers. The forgoing helical pier has particular benefits in applications requiring deep soil penetration and/or when using a grouted helical pier system.

A soil reinforcing device for reinforcing a ground supporting a load structure, wherein said soil reinforcing device comprises a first assembly comprising: a plurality of cells extending vertically and forming a cell mesh; a plurality of draining devices extending vertically and located in said cells.