Seal arrangement for a joint of two joint elements, in particular realized as a monopile and a transition piece, of an offshore structure, preferably an offshore wind energy installation, in particular a substructure thereof, in which, for the purpose of producing a stable joint, an upper joint element and a lower joint element are inserted into each other in a clamping manner by means of at least one seal unit, comprising one of the joint elements and the at least one seal unit fixed to the joint element, in such a manner that the seal unit, in a joining position, is arranged between an inner joint surface of one joint element and an outer joint surface of the other joint element, at least one seal unit having at least one elastic sealing element, which extends in the circumferential direction around the entire circumference and the thickness (D) of which is greater than the thickness (D) of an adjoining seal unit region and method for producing a seal arrangement.

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.

An offshore structure having a foundation structure, wherein the foundation structure has at least a first and a second profile, the first profile is designed as a pile and the second profile is designed as a pile sleeve, the second profile encloses the first profile over a penetration length, wherein an interspace is formed between the first and the second profile, the interspace has a casting compound filling over the total penetration length, shear elements are provided on the first and/or the second profile, the shear elements extend into the interspace and effect an axial load dissipation into the casting compound filling, the shear elements are provided only over a first partial length of the penetration length, the first partial length is between 65 and 90% of the total penetration length and a second partial length is free of shear elements, wherein the second partial length forms the upper length of the penetration length in the installed position.

A tensionless concrete pier foundation for supporting a tower and a method of constructing the same is provided, the foundation having an outer CMP and an inner CMP with an annular space therebetween in which a plurality of sleeved tower anchor bolts are embedded, at least the outer CMP having an upper edge that is flush with the top of the foundation after the tower has been installed. A method of plumbing a tower anchor bolt cage using a bolt alignment ring is also provided that includes coupling the upper ends of the CMPs together with lateral spacing bolts that extend across the annular space. The tower anchor bolt cage is suspended from the lateral spacing bolts by the bolt alignment ring, and the lateral spacing bolts are shimmed on a low side as necessary for leveling the alignment ring and plumbing the bolt cage, before concrete pour.

Embodiments of a mold for making a retaining wall blocks are disclosed. The mold enables blocks to be made more quickly by enabling separation of each block from the mold housing when the block is cured sufficiently to enable separation. Once separated, the block can be permitted to fully cure away from the mold housing, while the mold housing is re-used to produce one or more other blocks. In one embodiment, among others, the mold has a movable bottom tray and a mold housing with at least one door. The mold housing has an opening designed to receive and introduce a fabrication material, such as concrete, into the cavity. Once a block is sufficiently cured, it is separated from the mold housing on the tray through the at least one door, and a new tray is inserted in the mold housing to make another block.

The invention relates to a vibratory pile-driving apparatus having a carrier implement with a mast, on which, for the purpose of generating vibrations, a vibration generator with a transmission housing is supported, in which at least one pair of rotatably supported unbalanced units is arranged that are driven in a rotating manner by at least one rotary drive. According to the invention provision is made in that the transmission housing is surrounded by a soundproof housing, in which the transmission housing is supported by way of damping elements, and in that from the transmission housing at least one oil supply line and one oil discharge line are led out of the soundproof housing, wherein transmission oil can be cooled outside the soundproof housing.

A tensionless concrete pier foundation for supporting a tower and a method of constructing the same is provided, the foundation having an outer CMP and an inner CMP with an annular space therebetween in which a plurality of sleeved tower anchor bolts are embedded, at least the outer CMP having an upper edge that is flush with the top of the foundation after the tower has been installed. A method of plumbing a tower anchor bolt cage using a bolt alignment ring is also provided that includes coupling the upper ends of the CMPs together with lateral spacing bolts that extend across the annular space. The tower anchor bolt cage is suspended from the lateral spacing bolts by the bolt alignment ring, and the lateral spacing bolts are shimmed on a low side as necessary for leveling the alignment ring and plumbing the bolt cage, before concrete pour.

A cap assembly can include a cap holder device with a plug member and a cap holder. The cap holder device is positionable in an end of a conduit positioned along a roadway. The cap holder is carried by the plug member and includes a magnetic element and a connector. The connector is connectable to the magnetic element to the plug member such that the magnetic element is movable relative to the plug member so as to position the magnetic element for releasably holding a cap that covers the end of the conduit when the plug member is positioned in the conduit. The cap assembly can be a debris cap insertable in a conduit, an end of a pipe, or other opening.

A manhole cover assembly comprises a base frame, the base frame comprising a base body and a base flange extending laterally outward from the base body. The assembly further comprises a top frame, the top frame comprising a top body disposed annularly about at least a portion of the base body, a top flange extending laterally outward from the top body, and a lip extending laterally inward from the top body.

This disclosure presents an anchoring element (20) for a charging station foundation (1), the charging station foundation (1) configured to receive a charging station (30) adapted to electrically charge a vehicle, wherein the anchoring element (20) comprises at least 50 weight percent plastic material and is adapted to receive first threaded fasteners (15) by means of which the anchoring element (20) may be attached to a foundation member (10) of the charging station foundation (1) and to receive second threaded fasteners (25) by means of which the charging station (30) may be attached to the anchoring element (20). The disclosure further presents a method of installing a charging station foundation, a method of installing a charging station and a use of an anchoring element (20) comprising at least 50 weight percent plastic material.