A pile holding system is to be mounted on a deck of a vessel, e.g. for installation of a pile adapted to support an offshore wind turbine. The pile holding system is configured to support the pile in an upright position at a pile installation location next to the vessel. A vessel is provided with such a pile holder system. A method for installation of a pile and a pile holder are also disclosed.

A construction method for reinforcing and repairing a steel pipe pile for offshore wind power includes the following steps. Installing multiple support ribs on an outer wall of a steel pipe pile to be repaired along a circumferential direction. Placing multiple support plate components on the support ribs and performing splicing along the outer wall of the steel pipe pile to form an annular support plate assembly. Installing multiple hoop cylinder components on the support plate assembly, performing splicing along the outer wall of the steel pipe pile to form an annular hoop cylinder assembly, and forming a grouting cavity between the hoop cylinder assembly and the steel pipe pile. Connecting grouting pipelines to grouting ports of the hoop cylinder assembly, and performing a grouting operation. After grouting, forming a reinforcement and repair structure on the outer wall of the steel pipe pile when grouting materials are solidified.

A pile holding system is to be mounted on a deck of a vessel, e.g. for installation of a pile adapted to support an offshore wind turbine. The pile holding system is configured to support the pile in an upright position at a pile installation location next to the vessel. A vessel is provided with such a pile holder system. A method for installation of a pile and a pile holder are also disclosed.

A pile system for support structures includes at least two piles each having a first end, a second end, and a cylindrical elongate body. Each cylindrical elongate body has an inner surface and an outer surface, extends from the first end toward the second end, and defines an internal cavity with a longitudinal axis. Each pile further includes a transition region between the elongate body and the second end, the transition region including an annular seating shoulder disposed on the inner surface of the cylindrical elongate body that defines a step increase from a primary inner diameter to a secondary inner diameter. The first end of a first pile of the at least two piles is configured to be inserted into the second end of a second pile until a first distal edge thereof contacts the seating shoulder of the second pile.

An erosion control roll comprises a porous outer casing having an interior, a fill material within the interior, wherein the fill material comprises a mineral wool. The erosion control roll is flexible and positionable where it can provide one or more of erosion control, sediment separation, water flow diversion, and a fire barrier.

The present invention provides a method for protecting a soil slope from rain erosion by improving with phosphogypsum and a microbe. The method includes: (1) placing Bacillus pasteurii in a culture medium to prepare a microbial solution, and mixing urea, calcium chloride and water to prepare a cementing solution; (2) mixing a mixture, the microbial solution and water well, and adding the cementing solution and water to prepare an improving mixture slurry; and (3) spraying the improving mixture slurry to a face of the slope twice by wet spraying, mixing the improving mixture slurry with grass seeds well, spraying to the face of the slope once, covering with a non-woven fabric by tying and fixing to the slope, and watering every day.

A pile system for support structures includes at least two piles each having a first end, a second end, and a cylindrical elongate body. Each cylindrical elongate body has an inner surface and an outer surface, extends from the first end toward the second end, and defines an internal cavity with a longitudinal axis. Each pile further includes a transition region between the elongate body and the second end, the transition region including an annular seating shoulder disposed on the inner surface of the cylindrical elongate body that defines a step increase from a primary inner diameter to a secondary inner diameter. The first end of a first pile of the at least two piles is configured to be inserted into the second end of a second pile until a first distal edge thereof contacts the seating shoulder of the second pile.

A yoke plate assembly for mooring a floating object in a body of water by a pair mooring lines, includes an assembly plate mechanically coupling to an anchor body, an elongated yoke plate with a center thereof pivotally connected to the assembly plate by an articulation, a first lever arm having a first proximal end connected by a first coupler to a first end of the elongated yoke plate, a second lever arm having a second proximal end connected by a second coupler to a second end of the elongated yoke plate longitudinally opposite the first end. The first lever arm at a first distal end thereof is connectable by a first distal joint to one of the pair of mooring lines, and the second lever arm at a second distal end thereof is connectable by a second distal joint to the other of the pair of mooring lines.

A soil reinforcing element and method of manufacturing for use in a mechanically stabilized earth (MSE) structure. A smooth metal strip is fabricated into a soil reinforcing element that is manufactured from stock pulled from a coil, the surface of the strip surface is manipulated using the technique of cold forming. Where the manipulated surface is optimized to consist of a peak and a valley to increase the pullout resistance when embedded in an earthen formation involving a mechanically stabilized earth (MSE) structure.

In a general aspect, suction anchors are disclosed that include a tubular body formed at least in part of cementitious materials. The tubular body has a closed end, an open end, and a perimeter wall. The perimeter wall defines a shape of the tubular body and is former at least in part of the cementitious materials. The tubular body also includes a channel internal to the perimeter wall defining a spiral around a longitudinal axis of the tubular body. The tubular body additionally includes an edge defining an opening for the open end. The edge is configured to penetrate the underwater floor. The suction anchors also include a post-tensioning device through the channel in a tensioned state and a port configured to fluidly-couple at least part of a cavity within the tubular body to an exterior of the tubular body.