A post-tensioned tube foundation for supporting a structure subject to high upset forces is described herein. The post-tensioned tube foundation includes an outer CMP positioned within an excavated hole. A foundation plug is positioned within the cavity of the outer CMP and extends across the bottom of the excavated hole. An inner CMP is positioned within the cavity of the outer CMP such that an annular space is defined between the inner CMP and the outer CMP. A tubular concrete base is positioned within the gap defined between the inner CMP and the outer CMP. A void forming element is positioned within the gap defined between the inner CMP and adjacent the top surface of the foundation plug.

A manhole assembly including a base, riser, and cap. The base having an upper surface forming a bench, a bottom surface, and a radially outward surface with penetrations there through; and a radial spigot in the radially outward upper edge of the base. The base having a corrosive-resistant layer covering the channels, bench, and radial spigot. Also disclosed is a riser comprised of a corrosive-resistant polymer pipe having a radially outward surface, an inner surface and a bottom surface in contact with, supported by, and sealed to the radial spigot. The cap having a radial spigot, and access hole; the radial spigot in the radially outward bottom edge of the cap resting upon and sealed to an upper edge of the riser. The radially outward surface of the cap and base are aligned with the radially outward surface of the riser.

A sheet pile of concrete comprising a reinforcement (1) which is produced from composite material comprising fibres and a concrete casting (2) which extends between a first lateral end (3) thereof and an opposite second lateral end (4) thereof, the reinforcement (1) being embedded in the concrete casting (2). The sheet pile further comprises a terminal element (6) which is produced from a polymer material and which comprises a connection element (7) which is embedded in the concrete casting (2) and an engagement element (8) of the sheet pile (100) which is connected to the connection element (7). The connection element (7) and the engagement element (8) extend along a longitudinal axis (X) of the sheet pile, in which the engagement element (8) has a practically C-shaped cross-section and projects from the first lateral end (3) of the concrete casting (2). The second lateral end (4) of the concrete casting (2) comprises a concrete joint (9) which extends longitudinally along the longitudinal axis (X) and which is shaped so as to be connected in an interlocking manner to the engagement element (8) of a second sheet pile.

A manhole assembly including a base, riser, and cap. The base having an upper surface forming a bench, a bottom surface, and a radially outward surface with penetrations there through; and a radial spigot in the radially outward upper edge of the base. The base having a corrosive-resistant layer covering the channels, bench, and radial spigot. Also disclosed is a riser comprised of a corrosive-resistant polymer pipe having a radially outward surface, an inner surface and a bottom surface in contact with, supported by, and sealed to the radial spigot. The cap having a radial spigot, and access hole; the radial spigot in the radially outward bottom edge of the cap resting upon and sealed to an upper edge of the riser. The radially outward surface of the cap and base are aligned with the radially outward surface of the riser.

A reinforcement unit and methods are provided for creating footings for supporting structures, such as a fence post, using a reinforcement unit that has a tower that is generally perpendicular to a base, the tower defining a cavity for receiving a portion of the structure and an anchoring material. The reinforcement unit can include a top portion of a tower that is frangible. The base of the reinforcement unit can further include a pocket (or similar recess) substantially similar in width or diameter to the top portion of the tower such that a second identical reinforcement unit can be inverted and stacked on top of the second reinforcement unit. The methods can include placing the reinforcement unit on a layer of backfill material behind the wall face so that the unit is located adjacent the wall face and the base of the reinforcement unit extends away from the wall face, covering the base with at least one other layer of the backfill material, fracturing the top portion from the tower, such that the top portion drops into the cavity of the tower, depositing a bottom portion of the structure in the cavity of the tower, and filling the cavity of the tower with an anchoring material.

A system and method to create or elevate a berm of a liquid retention facility by placement of lightweight fill material anchored by impervious liner material(s). The liner materials can be part of the liquid retention pond. The system and method can also be used to elevate the height of the berm in combination with impervious liner retention material. By constructing the berm system on an existing berm, earth embankment or levee, the effective height of the system structure can be increased. The liquid impervious liner material provides a watertight surface, joining media, and the anchoring of the lightweight fill material to the existing berm. The system may use solid wall hollow body structures. The system may also use flexible and liquid porous geotextile structures including geotubes. The liquid impervious liners retain the liquid in the retention pond.

A sheet pile of concrete comprising a reinforcement (1) which is produced from composite material comprising fibres and a concrete casting (2) which extends between a first lateral end (3) thereof and an opposite second lateral end (4) thereof, the reinforcement (1) being embedded in the concrete casting (2). The sheet pile further comprises a terminal element (6) which is produced from a polymer material and which comprises a connection element (7) which is embedded in the concrete casting (2) and an engagement element (8) of the sheet pile (100) which is connected to the connection element (7). The connection element (7) and the engagement element (8) extend along a longitudinal axis (X) of the sheet pile, in which the engagement element (8) has a practically C-shaped cross-section and projects from the first lateral end (3) of the concrete casting (2). The second lateral end (4) of the concrete casting (2) comprises a concrete joint (9) which extends longitudinally along the longitudinal axis (X) and which is shaped so as to be connected in an interlocking manner to the engagement element (8) of a second sheet pile.

An edge stabilization assembly for inclined surfaces having a synthetic tuft assembly; a water-permeable polymer mesh connected on one side of the synthetic tuft assembly, and a tuft-free non-permeable woven polymer mat connected on the other side of the synthetic tuft assembly, and a plurality of fasteners.

An edge stabilization assembly for inclined surfaces having a synthetic tuft assembly; a water-permeable polymer mesh connected on one side of the synthetic tuft assembly, and a tuft-free non-permeable woven polymer mat connected on the other side of the synthetic tuft assembly, and a plurality of fasteners.

Systems and methods for soil improvement foundation isolation and load spreading are provided. The systems and methods provided herein relate to isolation of structural foundations from soil improvement elements and distributing stress from high stiffness elements to lower stiffness materials. A shear load transfer reduction system may include one or more ground improvement elements for supporting an applied load. A shear break element may be positioned above one or more ground improvement elements. The shear break elements may be configured to have low interface shear strength. Further, systems and methods are provided for creating an engineered slip surface for reducing shear stresses between a laterally loaded foundation and a rigid foundation support element and wherein two slip pads are provided that form the engineered slip surface.