A disposable formwork for making ventilated loose stone foundations, in particular for floors, slabs, storage and/or collection tanks, dispersion tanks, alveolar concrete beds, cavities and/or similar building structures is described. The disposable formwork comprises a body having a first substantially convex surface intended to receive at least one binding material casting, optionally concrete, and a second surface, facing the opposite side of the first surface, substantially concave and suitable for delimiting, at least partly, a cavity; at least one support element, in particular four, having at least one contact portion arranged to engage a bottom surface of a cavity of a building structure under construction and arranged to support the body according to a position spaced from the bottom surface of the cavity. The disposable formwork has at least one portion made of polystyrene. Preferably, the entire structure of the disposable formwork is advantageously made of polystyrene.

Seawalls and methods for making seawalls are disclosed. A seawall may include a concrete footing, with a first plurality of anchorages disposed in the concrete footing. A plurality of precast concrete tee beams may include single-tee beams and/or double-tee beams. Flanges of the tee beams may be positioned to form seaward and landward faces of the wall, and stems of the tee beams may be coupled to the footing between the seaward and landward faces. A second plurality of anchorages may be disposed at tops of the stems. Elongate steel components extend through the stems, and are tensioned between the first plurality of anchorages and the second plurality of anchorages. Interior fill may be disposed between the seaward and landward faces. One or more wave deflectors may be disposed above the tee beams.

A retrofit reinforcing structure addition and method for an existing gravity spread foundation for a wind turbine or the like haying a central pedestal and a spread section is provided. The retrofit structure addition includes a collar formed around the pedestal of the spread foundation. The collar is formed by a shape sustaining member, such as a CMP, placed around the pedestal to define an annular ring between the CMP and the pedestal that is filled with cementitious material. Radial bolts extend horizontally through the collar and into the side of the pedestal. Soil and/or rock anchor bolts extend vertically through the collar, the spread portion of the foundation and into the underlying soil and/or rock substrate. The radial and anchor bolts are post-tensioned to ensure that the cementitious material of the collar remains in compression and the bolts are always in static tension, strengthening the original gravity spread foundation and extending the fatigue life thereof.

A pile pouring structure includes a steel reinforcement cage, a limiting ring arranged on the outer side of the steel reinforcement cage, a plurality of PVC pipes arranged in the steel reinforcement cage, a cut-off layer arranged on the limiting ring, a two-dimensional code display board arranged in one-to-one correspondence with the steel reinforcement cage, the cut-off layer is annular. The two-dimensional code display board is provided with a two-dimensional code which is scanned to enter an information input interface. Information management is achieved in the pile construction process by scanning the two-dimensional code for inputting pile body strength information, thereby improving the work efficiency. The cut-off layer is used as an interface between a pile body and a pile head so that a part needing to be broken is rapidly positioned. The pile head at a part above the cut-off layer is broken so that the cut-off layer is capable of protecting a lower structure.

What is provided is a precast hollow block, a precast wall system incorporating the precast hollow block, and forms for manufacturing a hollow block and a coping cap. Accordingly, the precast hollow block and its incorporation into a precast wall system provide solutions to current “level up” block coping techniques, wall flood protection, wall force protection, and the like. Instead of having mismatched or missing face textures on sloped portions of the wall, the precast wall system allows for easier installation of face-textured blocks directly at the top of the wall. As a result, the precast wall system may readily account for slope transitions of a wall, conform to specific Department of Transportation project requirements, accommodate existing wall construction specifications, and be easily customizable for a variety of applications.

Soil displacement piles having a shaft and one or more soil displacement assemblies secured to the shaft are provided. If more than one soil displacement assembly is utilized, each soil displacement assembly is separated by a longitudinal distance. Each soil displacement assembly has an upper helical plate, a lower helical plate and separated from the upper helical plate by a longitudinal plate distance, and at least one soil displacement plate positioned relative to the shaft, the upper helical plate and the lower helical plate.

A foundation system for the implementation of thermosolar and photovoltaic plants that comprises a component (1) made from reinforced or prestressed prefabricated concrete constituted by a lower slab (2), a longitudinal central rib (3) in the top part and comprising a pillar (4) that emerges from the top part of the central rib. A method for implementing said foundation that comprises the phases: prefabrication (13) of a panel (1) of reinforced or prestressed concrete, the laying-out (14) of a bed of sand (12) over a surface, placing (15) the component (1) on said bed of sand (12), filling (16) with granular material (11) over the lower slab (2) of the panel (1) up to the upper reference mark on the pillar (4), placing (17) a supporting structure (9) inside the pillar (4), wedging (18) of the supporting structure, and filling (19) of the existing hollow using mortar.

A roller bracket having a base, a raising and lowering mechanism, a platform, and horizontal and vertical rollers. The base is attached to the vertical face of a starter wall at a level to provide a desired height for a concrete ceiling. With the platform in the raised position, the bottom edge of a tunnel form is lowered between the vertical roller and the starter wall onto the horizontal rollers. A wedge is driven between the vertical roller and the tunnel form to seal the tunnel form against the starter wall. After concrete has been poured, retained by the seal, and cured to form the concrete walls and ceiling, the mechanism can lower the platform to strip the tunnel form from the tunnel. The tunnel form can then be rolled away on the horizontal rollers while being retained on the horizontal rollers by the vertical roller and the starter wall.

A pile (270) within a bore (110) comprises a column (250). The column (250) comprises a stack of a plurality of pile sections (300) arranged end-to-end within the bore (110). There is a cured material (260) between at least a part of an outside surface of the column (250) and the surface of the bore (110). The cured material, for example grout, may be provided through channels in the pile sections.

A stem wall bracket comprising a horizontal member, a short vertical member extending downward from a first edge of the horizontal member, and a long vertical member extending downward from a second edge of the horizontal member, where the first edge is opposite the second edge. The stem wall bracket further comprises a pin holder configured to extend through a hole in the horizontal member. The pin holder comprises a vertical portion and a horizontal portion extending from the vertical portion, where the horizontal portion is configured to hold a horizontally oriented rebar. The short vertical member and long vertical member further comprise a plurality of holes to allow a first and second form board to be removably attached using a plurality of fasteners.