A masonry block system includes a first corner masonry block and a second corner masonry block. The first corner masonry block has a first front, a first back, a first top, a first bottom, a first side and a first angled side which is at a first non-90-degree angle to the first front. The second corner masonry block has a second front, a second back, a second top, a second bottom, a second side and a second angled side that which is at a second non-90-degree angle to the second front. A first interlock on the first angled side of the first corner masonry block mates with a second interlock on the second angled side of the second masonry block when the first corner masonry block is placed next to the second corner masonry block such that the first angled side abuts the second angled side.

The present invention is directed to a retaining wall system including a retaining wall having with at least one retaining wall rebar extending along a vertical direction, the at least one retaining wall rebar includes an end formed into a first retaining wall rebar hook, at least one deadman spaced from the retaining wall, each deadman including a concrete base extending along the vertical direction, the concrete base including rebar extending past the concrete base and having an end formed into a deadman rebar hook, at least a first hole at a top portion of the retaining wall and extending into the retaining wall to expose the retaining wall rebar hook, and a first cable attached to the retaining wall rebar hook and to the deadman rebar hook to support the retaining wall.

A foundation system for modular hydropower systems and methods for constructing same. The foundation system is compatible with soils, particularly soils that are relatively loose or compressible, and thereby advantageous for the widespread implementation of low head modular hydropower systems. The foundation system includes pipe piles; sheet piles configured to be arranged transverse to the pipe piles; pile caps configured to be seated on top of the plurality of pipe piles; and a beam base slab configured to be securely positioned on top of the pile caps. A kit for the foundation system is also disclosed.

A budding element for coupling with other budding elements to erect a retaining wall. Exemplary building elements have receiving spaces for receiving increased weight of fill material to provide increased stability. Optionally, each building element can have an enlarged face profile that provides efficiency in the shipping and assembly process. 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.

A concrete pier foundation having a plurality of sleeved tower anchor bolts embedded therein and a spiral loop encasement providing lateral shear reinforcement is provided. The spiral loop encasement surrounds at least a lower portion of the concrete pier and is formed by hoop steel wrapped around the perimeter of the tower anchor bolt cage. In proper soils or rock the spiral loop encasement can eliminate the need for corrugated metal pipes, reducing the cost and complexity of construction.

Disclosed herein is a soil-displacement drill for soil-displacing drilling in a surface in order to form a foundation pile, comprising a drill pipe, a drill head at an end of the drill pipe with several flap leaves which are pivotable between a closed position for closing off the end of the drill pipe and an open position for making this end freely accessible, and one or several closing elements to keep these flap leaves in their closed position and prevent pivoting of the flap leaves which are configured to fail during drilling into the surface in such a way that these closing elements do not impede pivoting of the flap leaves. Additionally, disclosed herein is an assembly of a drill head and one or several closing elements for such a soil-displacement drill, a method for soil-displacing drilling, and a method for converting a soil-displacement drill to form such a soil-displacement drill.

A foundation engineering machine and method for producing a trench in the ground include a substantially vertical mast, a diaphragm wall apparatus displaceably supported in a longitudinal direction of the mast for producing the trench, and a bar-shaped holder, at the lower end of which the diaphragm wall apparatus is mounted and with which the diaphragm wall apparatus is linearly displaceable along the mast. An upper first clamping sledge with a first clamp for releasably clamping the bar-shaped holder and a lower second clamping sledge with a second clamp for releasably clamping the bar-shaped holder are movably supported on the mast. The first clamping sledge and the second clamping sledge are movable relative to each other, and the lower second clamping sledge has a connector for mounting an additional lifting device disposed on the ground, with which a force can be applied in the longitudinal direction onto the second sledge.

The present invention relates to a self-supporting, prefabricated, folding form structure or mechanism to be used in the construction industry. It is based on various types of geometries, providing enhanced strength and stability for the concrete and other building material casting process. The object of this invention is a foldable, prefabricated, self-supporting form and does not require a structure. It is configured in a variety of geometric shapes and is based on structural elements that have internal casting chambers or ducts interconnected between each other through perforated holes. This is done by means of internal assembly channels or cavities forming casting chambers. The casting chambers are interconnected with each other, through holes drilled in the structural elements. This way the form features an assembly between its walls through cracks or assembly cuts, creating an architecture of superior engineering that provides higher resistance and stability.

The invention relates to a foundation (10) for a wind turbine substantially consisting of a concrete-cast plinth-like portion (11) having at least one cast-in-situ tower fastening element (60) located therein on which a tower of the wind turbine can be arranged and to which the tower of the wind turbine can be connected, and of a second, substantially horizontally extending portion (12) as planar foundation body, wherein the second portion (12) is arranged connected to the first portion (11), and wherein the second portion (12) of the foundation (10) substantially consists of at least three prefabricated horizontal elements (22), preferably made of reinforced concrete. There is provision here that the at least three horizontal elements (22) each have at least one base portion (23) with a stiffening element (26) extending substantially vertically thereon, that the horizontal elements (22) can be arranged in dependence on the parameters of the tower to be erected, in particular the tower radius, and that there is in each case a distance (B) between the horizontal elements (22).

A method for constructing a retaining wall using an adjustable single stage panel system has the steps of placing a wall panel adjacent a fill location, then placing a facing wedge adjacent the wall panel, and installing fabric sheet. Next, adding a layer of fill material in the fill location abutting against the facing wedge, and compacting the layer of fill material so that it is compacted against the facing wedge. Then, placing an elongate non-extensible panel anchor on top of the layer of fill material, and attaching the elongate non-extensible panel anchor to the wall panel. At a next step, the facing wedge is moved up to a next course above the layer of fill material, and fabric sheet is installed. An additional layer of fill material is added and compacted with enough force to mobilize the fill. Finally, the method includes the steps of removing the facing wedge, and adjusting the elongate non-extensible panel anchor so that it is plum with the wall panel.