An earth structure has a facing formed of a plurality of laterally spaced support members. The top and bottom of each support member is connected to a stabilizing element that extends rearwardly into an earth mass. A mesh cover extends between adjacent support members. The support members include a front portion and integral lower and upper extensions that define a C-shaped strap. The mesh cover is also somewhat C-shaped as defined by a front portion and integral upper and lower rear projections...

An expandable earth anchor is provided with pivoted arms that remain contracted about a bolt rod as the rod, together with the anchor, is driven into the earth. Rotation of the rod with respect to the anchor induces an initial degree of expansion by rotation of the anchor arms about their pivot connection, followed by full expansion of the arms induced by movement of the bolt rod as a result of rotation of a bearing nut against a plate. Arrangements are provided for the expansion of a plurality ...

An earth anchor having a plurality of anchor arms which are extendable after being placed in position. A flexible skirt member is attached to the anchor arms whereby after insertion into the hole, the anchor arms and skirt member may be extended into undisturbed earth thereby providing an anchoring surface at least as great as the surface area of the skirt member.

An improved grouted earth anchor having a modified end configuration that reduces undesirable tensile stress in the grout ball. The reduction in tensile stress is accomplished by locating the enlarged end section of the end configuration of the anchor rod away from the bottom of the grout ball, and by shaping the enlarged end section in a predetermined manner in order to make the compressive stress trajectories between the surface of the enlarged end section and the surface of the grout ball as ...

Earth tamper with a main frame having spaced, reinforced cross members with two trunnions extending normal to the cross members and parallel to a central tongue. A perimeter subframe carrying two tamper wheels is pivotally mounted on each trunnion permitting subframe oscillations when compacting uneven grades. The subframes shift axially between the cross members and along the trunnions when travel direction is reversed placing in engagement alternate sets of force transfer members on main and s...

In an earth anchor for use for embedding within the ground and to acquire a secure and snug retention therein, the anchor incorporates a shank portion having a helical blade affixed thereto, the blade having a linear cutting edge positioned at a lagging angle off the perpendicular or radius from the said shank portion; said shank portion may contain one or more of the helical blades spacedly arranged there along, or have a series of shank portions that are connectible axially together to form an...

An earth anchor for securing objects in soft earth and including a plurality of anchor arms which are extendable after the anchor is moved into position. A flexible, pleated, metal skirt member is attached to the anchor arms whereby after being augered into position, the anchor arms and skirt member may be extended into substantially undisturbed earth thereby providing an anchoring surface at least as great as the surface area of the skirt member.

An elongated shaft, having one sharpened end, is provided with a first single plate helix adjacent its sharpened end. A portion of the uppermost first helix convolution forms a laterally enlarged first blade portion. A second single plate helix is connected to the shaft, intermediate its ends, and forms a laterally enlarged second blade portion extending in a diametrically opposite direction with respect to the first blade portion. Head means on the other end of the shaft permits rotation of the...

An earth scraper of the type having a support frame, wheels journaled on the support frame to support the earth scraper as it rolls over the ground, a bowl for accumulating and discharging scraped earth, scoop means for scraping earth, and earth elevating means for depositing scraped earth in the bowl. The scraper of the invention has hydraulic actuation means for positioning the bowl in earth accumulation or discharge positions, hydraulic actuation means for elevating and depressing the scoop m...

An earth grid for the switching yards and distribution yards associated with electric power stations and substations is provided in which the conductors of the interconnected mesh of conductors forming the grid are aligned at an angle of between 30.degree. and 60.degree. with the direction of the switching yard bus bars and feeders.