Disclosed are exemplary embodiments of turf reinforcement mats that include spun yarns and/or multifilament yarns in either or both of the warp and weft directions.

Disclosed are exemplary embodiments of turf reinforcement mats that include spun yarns and/or multifilament yarns in either or both of the warp and weft directions.

An unbalance arrangement for a compactor roller of a soil compacter includes a first unbalance mass unit rotatable around an unbalance axis of rotation having a first center of mass eccentric with respect to the unbalance axis of rotation, a second unbalance mass unit rotatable around the unbalance axis of rotation having a second center of mass eccentric with respect to the unbalance axis of rotation, an unbalance drive for jointly driving the first unbalance mass unit and the second unbalance mass unit to rotate around the unbalance axis of rotation, and a phase position adjustment unit for adjusting a phase position of the first center of mass with respect to the second center of mass around the unbalance axis of rotation. The phase position adjustment unit includes a spur gear arrangement in the torque transmission path between the unbalance drive and the first unbalance mass unit or the second unbalance mass unit.

A vehicle is provided for installing in a prepared area along a ground surface a protective structural support proximate a buried pipeline in an automated manner. The vehicle includes a chassis with a plurality of wheels and a payload release mechanism coupled to the chassis and including a roller for holding the protective structural support. The payload release mechanism is configured to dispense and lay down the protective structural support in the prepared area. The vehicle includes a liquid dispensing mechanism that is coupled to the chassis and is located downstream of the payload release mechanism. The liquid dispensing mechanism includes a liquid source and a dispenser that is in fluid communication with the liquid source and is configured to dispense liquid across a spray area.

A vehicle is provided for installing in a prepared area along a ground surface a protective structural support proximate a buried pipeline in an automated manner. The vehicle includes a chassis with a plurality of wheels and a payload release mechanism coupled to the chassis and including a roller for holding the protective structural support. The payload release mechanism is configured to dispense and lay down the protective structural support in the prepared area. The vehicle includes a liquid dispensing mechanism that is coupled to the chassis and is located downstream of the payload release mechanism. The liquid dispensing mechanism includes a liquid source and a dispenser that is in fluid communication with the liquid source and is configured to dispense liquid across a spray area.

A multi-function retaining structure for excavation and drainage operations during construction process and a method for excavation and implementation of a multi-function retaining structure at a target location. The multi-function retaining structure includes a first I-beam, a second I-beam, a third I-beam, a first inclined stiffener plate, and a second inclined stiffener plate. The method includes positioning the multi-function retaining structure above the target location, driving the multi-function retaining structure into the target location by pushing the bottom edge of the third web into the target location, softening soils in the target location by jetting water to the soils utilizing a first water jet tube and a second water jet tube, extracting the first water jet tube and the second water jet tube from the rectangular chamber, and draining water from the rectangular chamber by utilizing a water drainage pump and through a drainage tube.

A multi-function retaining structure for excavation and drainage operations during construction process and a method for excavation and implementation of a multi-function retaining structure at a target location. The multi-function retaining structure includes a first I-beam, a second I-beam, a third I-beam, a first inclined stiffener plate, and a second inclined stiffener plate. The method includes positioning the multi-function retaining structure above the target location, driving the multi-function retaining structure into the target location by pushing the bottom edge of the third web into the target location, softening soils in the target location by jetting water to the soils utilizing a first water jet tube and a second water jet tube, extracting the first water jet tube and the second water jet tube from the rectangular chamber, and draining water from the rectangular chamber by utilizing a water drainage pump and through a drainage tube.

Aspects of a geogrid system for improving substrate interactions within a geotechnical environment is disclosed. 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.

Aspects of a geogrid system for improving substrate interactions within a geotechnical environment is disclosed. 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.

A vehicle is provided for installing in a prepared area along a ground surface a protective structural support proximate a buried pipeline in an automated manner. The vehicle includes a chassis with a plurality of wheels and a payload release mechanism coupled to the chassis and including a roller for holding the protective structural support. The payload release mechanism is configured to dispense and lay down the protective structural support in the prepared area. The vehicle includes a liquid dispensing mechanism that is coupled to the chassis and is located downstream of the payload release mechanism. The liquid dispensing mechanism includes a liquid source and a dispenser that is in fluid communication with the liquid source and is configured to dispense liquid across a spray area.