A noise-attenuating pile comprising a pile driving shoe, an outer tube that engages the pile driving shoe, and an inner member that extends through the outer tube and engages the pile driving shoe, wherein the pile is configured to be installed in the ground with either an impact driver or a vibratory driver that engages only the inner member. The inner member is rigidly connected to the driving shoe, and the outer tube is elastically connected to the driving shoe, such that vibrations from the outer tube is substantially isolated from vibrations in the driving shoe.

The present invention belongs to the technical field of offshore wind power construction and particularly relates to a system and a method for sealing expanded polymer-based pile shoes for a jacket. The system comprises a jacket disposed on a seabed, several pile shoes arranged around a lower end of the jacket, and several steel pipe piles inserted into the seabed, wherein the steel pipe piles are inserted into the corresponding pile shoes. The system is characterized in that gaps between the pile shoes and the steel pipe piles are respectively filled with concrete and an expanded high polymer from top to bottom, an annular elastic diaphragm is further connected to the inner walls of the pile shoes, and the expanded polymer is wrapped by the elastic diaphragm, such that the expanded polymer is isolated from the steel pipe piles and the concrete.

The present invention belongs to the technical field of offshore wind power construction and particularly relates to a system and a method for sealing expanded polymer-based pile shoes for a jacket. The system comprises a jacket disposed on a seabed, several pile shoes arranged around a lower end of the jacket, and several steel pipe piles inserted into the seabed, wherein the steel pipe piles are inserted into the corresponding pile shoes. The system is characterized in that gaps between the pile shoes and the steel pipe piles are respectively filled with concrete and an expanded high polymer from top to bottom, an annular elastic diaphragm is further connected to the inner walls of the pile shoes, and the expanded polymer is wrapped by the elastic diaphragm, such that the expanded polymer is isolated from the steel pipe piles and the concrete.

An anchor foundation mechanism includes: a vertical cylindrical tubular body formed to be inserted into the ground and having a receiving space therein; a cover part fixed to the bottom of the body by bolts and configured to be easily inserted into the ground; a support integrally formed with the top of the body and having a plurality of through-holes and an installation fixing bolt flange so as to allow the support to be fixed to a facility post after being exposed on the ground; and an anchor assembly formed in the receiving space of the body and having anchor pins for driving the body deeply into the ground and then tightly fixing the body so as to support a load and prevent rotation, and prevent forced pulling out.

The present disclosure regards a pile for a pile wall, said pile extending longitudinally between a first and a second end and comprising at least one perimeter profile in a cross section being essentially perpendicular to the longitudinal extension of said pile, said perimeter profile enclosing an uninterrupted area in said cross section, wherein at least one section of the perimeter profile extends outwardly forming a first male connection portion, and the uninterrupted area extends into the first male connection portion, thereby forming a load bearing portion of the pile. Furthermore, the present disclosure also regards a connection arrangement and a manufacturing method.

The present disclosure regards a pile for a pile wall, said pile extending longitudinally between a first and a second end and comprising at least one perimeter profile in a cross section being essentially perpendicular to the longitudinal extension of said pile, said perimeter profile enclosing an uninterrupted area in said cross section, wherein at least one section of the perimeter profile extends outwardly forming a first male connection portion, and the uninterrupted area extends into the first male connection portion, thereby forming a load bearing portion of the pile. Furthermore, the present disclosure also regards a connection arrangement and a manufacturing method.

The method of installing the mastic footprint may be used as a repair or in connection with a new installation of the structure. The method produces a mastic footprint that is resistant to infiltration of water, fuel, and salt, including mixtures thereof. The method further produces a mastic footprint that is thermally resistant. In repairs, the mastic footprint of the method provides longevity of use of at least one year and up to 5 years prior to any repair or replacement. In new installations, the mastic footprint provides longevity of use of at least 1 year and up to 15 years prior to any repair or replacement. Finally, the method of installing a mastic footprint does not affect the structural integrity of the adjacent or surrounding surface material, where the adjacent or surrounding surface material does not require repair or replacement sooner than if the method had not been deployed.

The method of installing the mastic footprint may be used as a repair or in connection with a new installation of the structure. The method produces a mastic footprint that is resistant to infiltration of water, fuel, and salt, including mixtures thereof. The method further produces a mastic footprint that is thermally resistant. In repairs, the mastic footprint of the method provides longevity of use of at least one year and up to 5 years prior to any repair or replacement. In new installations, the mastic footprint provides longevity of use of at least 1 year and up to 15 years prior to any repair or replacement. Finally, the method of installing a mastic footprint does not affect the structural integrity of the adjacent or surrounding surface material, where the adjacent or surrounding surface material does not require repair or replacement sooner than if the method had not been deployed.

The invention relates to a pile installation system for providing a pile in the ground, comprising; an elongate pile installation tool for forming a bore hole and having a distal end, an end member for coupling to the distal end of the pile installation tool, and an electromagnetic device for releasable magnetically coupling the end member to the pile installation tool.

Disclosed herein is a soil-displacement drill for soil-displacing drilling in a surface in order to form a foundation pile, comprising a drill pipe, a drill head at an end of the drill pipe with several flap leaves which are pivotable between a closed position for closing off the end of the drill pipe and an open position for making this end freely accessible, and one or several closing elements to keep these flap leaves in their closed position and prevent pivoting of the flap leaves which are configured to fail during drilling into the surface in such a way that these closing elements do not impede pivoting of the flap leaves. Additionally, disclosed herein is an assembly of a drill head and one or several closing elements for such a soil-displacement drill, a method for soil-displacing drilling, and a method for converting a soil-displacement drill to form such a soil-displacement drill.