In one aspect, a tieback assembly is provided herein for supporting a SOE, the tieback assembly including: at least one anchor; an anchor threaded element extending from an end of the anchor; a tendon for transmitting force between the anchor and the SOE, the tendon including at least one tendon threaded element; and, a coupler having a body with a threaded bore, the tendon threaded element and the anchor threaded element threadedly engaging the threaded bore. Furthermore, the tendon is provided with sufficient length to extend at least from the coupler to externally of the SOE so that a portion of the tendon may be engaged externally of the SOE to allow for disengagement of the tendon threaded element from the coupler. Advantageously, the subject invention allows for at least partial removal of the tendon from a tieback assembly, including removal of the tendon threaded element.

A building element for coupling with other building elements to erect a retaining wall. Optionally, the building element can have a modular construction. The building element can have a face panel and a beam member that extends substantially perpendicularly relative to the face panel. The building elements can have a variety of different configurations, providing flexibility in the design of retaining walls. Optionally, each building element can define alignment voids that receive portions of alignment posts for ensuring vertical alignment between adjacent building elements or portions of building elements.

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.

A caisson or casing 107 for installing a sheet 102/103 into a ground or underwater location, the caisson 107 having a shaped wall 107.1, which is open for a predetermined length and is adapted to receive and connect to an excavation means 3 within the confines of the caisson or casing 107. In at least one embodiment, the system includes a drilling assembly 3 for insertion of a caisson or casing 1, the drilling assembly 3 having one or more expanding drill bits 4 which are adapted to be driven by a drilling or rotation motive device 5, the expanding drill bits 4 being adapted to be arranged with respect to the caisson or casing 1 in use, so as form a hole or bore which substantially conforms to, or substantially overlaps with, the shape of the caisson or casing 1.

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 groundworks method for a foundation designed to form a foundation slab for an onshore wind turbine includes: excavating in the soil a depression intended to receive, on the one hand, an anchoring means which will be used to connect the mast to the future foundation and, on the other hand, the pouring of concrete to form said foundation after setting. According to the invention, the method further comprises digging a trench at the center of the depression, placing a compressible material in this trench, covering said material with a layer of concrete and waiting for it to set. A foundation is built for a wind turbine, by pouring concrete, the central part of which does not bear on the soil or barely bears on the soil. As a result, the pressure on the soil is increased and is delimited over a peripheral annular zone situated around its central part.

A sheath for constructing a reinforced concrete pile, characterized in that the sheath is formed by at least one circular knit comprising having a series of meshes helically positioned so as to form a pipe. A method for constructing a reinforced concrete pile includes excavating to form a well, inserting one end of a reinforcing rod in a sheath, positioning the sheath on an area of the rod and introducing the rod into the well, installing a tremie pipe inside the rod, and filling the well with concrete using the tremie pipe.

A reticular structure includes first elements distanced from each other and having an elongated conformation according to a first prevalent development trajectory, and second elements distanced from each other and having an elongated conformation according to a second prevalent development trajectory orthogonal, to the first prevalent development trajectory of the first elements. The first and second elements intersect at nodes to form meshes. The first elements have at a mid-portion defined between two consecutive nodes and orthogonally to the first prevalent development trajectory and a substantially T-shaped section including a base and a protuberance emerging orthogonally from the base. The second elements have, at a mid-portion defined between two immediately consecutive nodes and orthogonally to the second prevalent development path, a respective elongated base joined in a single piece to the base of the first elements to define a bottom surface of the reticular structure opposed to the protuberance of the first elements.

A solar energy system for use with tufted geosynthetics on sloping ground without the use of a traditional racking system. A frame attaches to the tufted geosynthetic cover to provide a flap and a solar panel secures to the flap directly or through a polymeric layer that attaches to the frame positioned between the flap and the tufted geosynthetic land cover with the solar panel adhesively attached to the polymeric layer. The solar panel being attached to the tufted geosynthetic land cover generates energy upon exposure to light. A method of securing a solar panel to a tufted geosynthetic land cover system for generation of energy is disclosed.