An integral geogrid includes a plurality of interconnected, oriented strands having an array of openings therein that is produced from a coextruded multilayer polymer sheet starting material. By virtue of the construction, the coextruded multilayer sheet components provide a crystalline synergistic effect during extrusion and orientation of the integral geogrid, resulting in enhanced material properties that provide performance benefits to use of the integral geogrid in soil geosynthetic reinforcement.

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.

Aspects of a geogrid system for improving substrate interactions within a geotechnical environment is disclosed. In one aspect features of a geogrid system aid in trapping and restraining aggregate and soil. In one aspect a geotechnical environment is configured with a horizontal multilayer mechanically stabilizing geogrid. In said aspect the geogrid is extruded with a polymeric material and a compressible cellular layer. In said aspect, the horizontal multilayer mechanically stabilizing geogrid is comprised of either a cap or a core of polymeric material or is further comprised of at least one compressible cellular layer configured to the polymeric material. Further, the horizontal multilayer mechanically stabilizing geogrid is configured with a triangle or triaxial geometry with patterned discontinuities and a plurality of strong axes. Said configuration increases soil and aggregate trapping while reducing polymeric use.

An integral geogrid includes a plurality of interconnected, oriented strands having an array of openings therein that is produced from a coextruded multilayer polymer sheet starting material. By virtue of the construction, the coextruded multilayer sheet components provide a crystalline synergistic effect during extrusion and orientation of the integral geogrid, resulting in enhanced material properties that provide performance benefits to use of the integral geogrid in soil geosyuthetic reinforcement.

A monolayer multi-axial integral geogrid suitable for stabilizing aggregate includes a plurality of interconnected oriented strands and partially oriented junctions forming a repeating pattern of outer hexagons having an array of openings therein. Oriented ribs extending inwardly from each of said outer hexagons support and surround a smaller inner hexagon having oriented strands thus forming a plurality of trapezoidal openings and a single hexagonal opening. The oriented strands and partially oriented junctions of the outer hexagons form a plurality of linear strong axis strands that extend continuously throughout the entirety of the geogrid and form additional triangular openings. The geogrid thus includes three different repeating geometric shapes. The inner hexagons preferably also can move up and down, out of the plane of the geogrid. The multi-axial integral geogrid thus provides a geometry that can better engage with, confine and stabilize a greater variety and quality of aggregates.

A geogrid and a manufacturing method thereof. The geogrid comprises multiple ribs, and the multiple ribs are connected to each other at multiple junctions to form multiple cells. At each junction, two or more adjacent ribs of the multiple ribs are inserted into each other via inserts, and each junction is covered by a plastic material. The geogrid can easily be extended to a present state at a construction site, prevent tearing of apertures, prevent soil from leaking from the apertures, and prevent the inserts from rusting or corroding. Since the plastic material, the ribs, and the inserts are bonded to each other, separation strength at the junction is markedly increased. Preferably, an end portion of the insert is completely covered by the plastic material to form an end cap, and the plastic material and the ribs and the inserts are bonded to each other to form columns.

A monolayer multi-axial integral geogrid suitable for stabilizing aggregate includes a plurality of interconnected oriented strands and partially oriented junctions forming a repeating pattern of outer hexagons having an array of openings therein. Oriented ribs extending inwardly from each of said outer hexagons support and surround a smaller inner hexagon having oriented strands thus forming a plurality of trapezoidal openings and a single hexagonal opening. The oriented strands and partially oriented junctions of the outer hexagons form a plurality of linear strong axis strands that extend continuously throughout the entirety of the geogrid and form additional triangular openings. The geogrid thus includes three different repeating geometric shapes. The inner hexagons preferably also can move up and down, out of the plane of the geogrid. The multi-axial integral geogrid thus provides a geometry that can better engage with, confine and stabilize a greater variety and quality of aggregates.

An integral geogrid includes a plurality of interconnected, oriented strands having an array of openings therein that is produced from a coextruded multilayer polymer sheet starting material. By virtue of the construction, the coextruded multilayer sheet components provide a crystalline synergistic effect during extrusion and orientation of the integral geogrid, resulting in enhanced material properties that provide performance benefits to use of the integral geogrid in soil geosynthetic reinforcement.

Aspects of a geogrid system for improving substrate interactions within a geotechnical environment is disclosed. In one aspect features of a geogrid system aid in trapping and restraining aggregate and soil. In one aspect a geotechnical environment is configured with a horizontal multilayer mechanically stabilizing geogrid. In said aspect the geogrid is extruded with a polymeric material and a compressible cellular layer. In said aspect, the horizontal multilayer mechanically stabilizing geogrid is comprised of either a cap or a core of polymeric material or is further comprised of at least one compressible cellular layer configured to the polymeric material. Further, the horizontal multilayer mechanically stabilizing geogrid is configured with a triangle or triaxial geometry with patterned discontinuities and a plurality of strong axes. Said configuration increases soil and aggregate trapping while reducing polymeric use.

A retaining wall structure of the present invention is a retaining wall structure comprising soil bags, each including: top and bottom surface portions having the largest area among surfaces constituting a soil bag body; and long side surface portions and short side surface portions forming side surfaces of the soil bag body between the top and bottom surface portions, wherein each of the long side surface portions of the soil bags is arranged to face the ground, the soil bags are stacked such that the long side surface portions are in contact with each other in the vertical direction with respect to the ground, the soil bags are arranged such that the short side surface portions are in contact with each other in the lateral direction with respect to the ground, and auxiliary retaining walls that are respectively disposed behind the stacked soil bags are provided.