An anchoring system using hollow piles connected with a cap, the hollow piles open at the top and closed at the bottom. A skirt extends from the cap. In use, the anchoring system is lowered to an ocean floor and a suction element removes water and ocean floor material from under the cap to lower the anchoring system into the ocean floor. Flexible walls at closed ends of the hollow piles may provide pressure differentials separating the undersea pressure to which the interiors of the hollow piles are exposed from air chambers at the closed ends of the piles at substantially lower pressures.

Disclosed is a multiple friction joint pile connection construction system to construct: shallow and deep foundations for structures, tie beam construction between footings, passive piles to prevent slope failures beam on elastic foundation, pile cap and tie beam in the construction of pile groups, load transfer platforms isolated (not connected) from the upper structure, retaining structure when constructed with vertical and horizontal orientation, vertical and horizontal drain when perforated blocks are used, landing pier, quay wall and platform construction for coastal and harbor structures, by anchoring to the upper section of the existing bored piles, by anchoring to the upper sections of the columns of the upper structure, in railroad tie manufacture, in transportation structures and in all kinds of similar geotechnical applications.

Disclosed is a multiple friction joint pile connection construction system to construct: shallow and deep foundations for structures, tie beam construction between footings, passive piles to prevent slope failures beam on elastic foundation, pile cap and tie beam in the construction of pile groups, load transfer platforms isolated (not connected) from the upper structure, retaining structure when constructed with vertical and horizontal orientation, vertical and horizontal drain when perforated blocks are used, landing pier, quay wall and platform construction for coastal and harbor structures, by anchoring to the upper section of the existing bored piles, by anchoring to the upper sections of the columns of the upper structure, in railroad tie manufacture, in transportation structures and in all kinds of similar geotechnical applications.

The present invention relates to a pile foundation includes: a pile that extends in a vertical direction and that supports a tower structure, a pile head protruding above the ground, and a lower end of the pile being open; and a ground improving body that, in a state in which the pile has been driven into the ground, is provided inside the pile, and at least a part of the ground improving body being in close contact with an inner peripheral surface of the pile.

The present invention relates to a pile foundation includes: a pile that extends in a vertical direction and that supports a tower structure, a pile head protruding above the ground, and a lower end of the pile being open; and a ground improving body that, in a state in which the pile has been driven into the ground, is provided inside the pile, and at least a part of the ground improving body being in close contact with an inner peripheral surface of the pile.

A grout plug assembly for use in forming a pipe pile system defining at least one pile assembly inner surface portion comprises a resiliently deformable plug body and a substantially rigid plug cap. The resiliently deformable plug body defining a plug outer surface, a plug inner surface, a first plug end surface, a second plug end surface, where the plug inner surface defines a plug passageway. The substantially rigid plug cap defines a cap outer surface, a cap inner surface, a first cap end surface, and a second cap end surface. The second cap end surface is rigidly secured to the first plug end surface. The plug outer surface is sized and dimensioned to engage the at least one pile assembly inner surface portion of the pipe pile system during formation of the pipe pile system.

A grout plug assembly for use in forming a pipe pile system defining at least one pile assembly inner surface portion comprises a resiliently deformable plug body and a substantially rigid plug cap. The resiliently deformable plug body defining a plug outer surface, a plug inner surface, a first plug end surface, a second plug end surface, where the plug inner surface defines a plug passageway. The substantially rigid plug cap defines a cap outer surface, a cap inner surface, a first cap end surface, and a second cap end surface. The second cap end surface is rigidly secured to the first plug end surface. The plug outer surface is sized and dimensioned to engage the at least one pile assembly inner surface portion of the pipe pile system during formation of the pipe pile system.

Provided are a pile joint, a pile coupling structure, and a pile coupling method that allow firm uniting of piles to be coupled. A joint (10) for coupling two piles (12) comprises: a tubular body (16) into which each pile (12) provided with a key (14) on a periphery thereof is inserted through an end (16A) of the body (16); and a fitting portion (22) formed on the body (16) so as to be fitted to the key (14) by the insertion and rotation of the pile (12). The fitting portion (22) is formed with: a tapered shape having a surface (22A) that is inclined so as to become distant from the end (16A) of the body (16) as the surface (22A) extends in the direction of rotation of the pile (12); or a wedge shape for fitting between a projection and a pile.

A pile includes a shaft; and a soil displacement head or a helical blade with a leading edge and a trailing edge, operatively connected to a first end of the shaft; the shaft having deformations formed thereon to provide a gripping interface between a supporting medium and the shaft.

A pile includes a shaft; and a soil displacement head or a helical blade with a leading edge and a trailing edge, operatively connected to a first end of the shaft; the shaft having deformations formed thereon to provide a gripping interface between a supporting medium and the shaft.