Abstract:
A retaining wall system for stabilizing an earthen wall. The retaining wall system comprises at least one panel structure, at least one anchor mesh panel, and at least one connecting pin. The panel structure comprising a wall panel and at least one insert. The wall panel defines an exposed face and a rear face. A first portion of the insert is embedded within the wall panel. A second portion of the insert extends from the rear face of the wall panel such that the second portion and the rear face of the wall define at least one lock opening. The anchor mesh panel defines a bearing portion and a bearing bar. The anchor mesh panel is arranged such that the bearing bar engages the second portion of the insert and the bearing portion is arranged adjacent to the rear face. The connecting pin is inserted through the at least one lock opening to inhibit relative movement between the anchor mesh panel and the wall panel when loads are applied to the wall panel.
Abstract:
A retaining wall anchoring system for a segmental retaining wall comprising a plurality of tieback rods adapted to be embedded into soil or rock with a proximal portion extending therefrom, at least one elongated force distribution member positionable directly adjacent the proximal portion of at least one of the tieback rods, a washer positionable about the proximal portions of the tieback rod in abutment with the force distribution member, and a fastener fixedly securable to the proximal portion of the tieback rod to securely clamp the washer against the force distribution member such that tensile forces imposed on the tieback rod are transmitted to the force distribution member so as to distribute these forces throughout a portion of the retaining wall.
Abstract:
A soil reinforced retaining wall for an earthen embankment is formed by screwing nails into the embankment at spaced intervals. The nails have helical threads extending therearound of such proportion and pitch as to screw into the formation as the nails are driven into place with a vibratory hammer, without prior boring of the embankment to accommodate the nails, or the necessity of cementing the nails into place. The wall is constructed from the top down and face panels are progressively assembled over the embankment and secured in place by the nails. In a preferred embodiment the nails have an elongate tubular body of a polyhedral cross-section and the threads are formed by twisting the body about its longitudinal axis.
Abstract:
A system for mine roof reinforcement includes a bearing plate and a tubular member with an inner surface, an outer surface, first and second free ends, and an enlarged portion disposed proximate one of the free ends. The system also includes a projectile and an insertion member for being received in the tubular member. In addition, a method for inserting a bolt in rock includes: forming a borehole in rock; placing a bearing plate with an opening therein against the rock so that the opening is aligned with the borehole; disposing a tubular member in the borehole and opening so that an enlarged end of the tubular member abuts the plate; and mechanically expanding the tubular member so that an outer wall thereof frictionally engages the rock.
Abstract:
A fastening system is invented for fasten the soil nails (which are used in cut areas) and the reinforced retaining structures (which are used in fill areas). The system is to connect the two and form an integrated body to prevent sliding plane passing through the interface of the two. The fastening system includes coupling elements, struts, flanges, steel pipes, cables, annular sleeve and clamps.
Abstract:
A method of constructing a retaining wall by connecting one or more layers of reinforcing sheet material, such as a polymeric geogrid, to the rear of one or more wall panels via slots defined in the rear walls of the panels having an angular locking section inside the panels adapted to retain U-shaped end sections of the reinforcing material carrying a connection bar that is cammed into the locking sections of the slots by a wedge.
Abstract:
In a retaining wall comprising stacked courses of concrete modules, each module has unitary walls including a front wall, two lateral walls, and a bottom wall, the front and lateral walls being upright. Each lateral wall has a front edge adjoining the front wall, a back edge spaced from the front edge, an upright rib extending inwardly from said lateral wall, and an upright rib extending outwardly from said lateral wall, the upright ribs being spaced equally from the front wall. Each lateral wall has a provision, such as a recess opening upwardly or an opening through that lateral wall, which is adapted to receive and receives a batten so that the batten can extend through said lateral wall and which is positioned where the batten if pulled backwardly can bear against the upright ribs of said lateral wall. In each of at least some of the courses, a batten is received by the provisions of the lateral walls of at least some of the concrete modules and a geogrid is anchored to the same modules, by the batten.
Abstract:
The present invention relates generally to a wale for use in bracing a retaining wall. The wale is comprise of a back wall, a front wall having a channel formed therein, and a plurality of connecting walls connecting the back and front walls to form at least one chamber between the back and front walls. In one embodiment, the wale is of unitary construction and the plurality of connecting walls includes top and bottom walls which form a single chamber between the back and front walls. In an alternative embodiment, the wale is of a unitary construction and the plurality of connecting walls includes a top, upper reinforcing, lower reinforcing, and bottom walls, which form a plurality of chambers between the back and front walls. The wale may by made of a pultruded composite material such as a fiberglass reinforced plastic (FRP) resin impregnated composite. A seawall system using such a waler is also described.
Abstract:
Connection devices to improve utilization of synthetic deformed bars to transfer tensile loads. Attachment devices for connection of thin wall face panels to mechanically stablized earth walls with minimal tensile loads. Horizontally disposed synthetically deformed bars or other tensionable members utilized to combine precast retaining wall elements.
Abstract:
An apparatus for installing a workpiece such as an anchor at a location underneath a surface such as the surface of the earth comprising an elongate track member having a first end positionable proximate as on the surface and a second end positionable distal the surface, a carriage slidably mounted on the track member for reciprocal movement therealong, a hammer assembly mounted on the carriage and having a hammer head reciprocally movable relative to the carriage in a direction toward and away from the first end of the track member, an operator to effect reciprocation of the hammer head and an actuator to compressively urge the carriage toward the first end of the track member.