Abstract:
A flexible in-ground shield includes a first wall, a second wall, a third wall, a plurality of shoring members, and a plurality of pivoting couplers. The first wall is disposed on a first side of the flexible in-ground shield, the second wall is disposed on a second side of the flexible in-ground shield, and the third wall is disposed on a third side of the flexible in-ground shield and coupled to the first and second walls. The plurality of shoring members extend between the first wall and the second wall, and the plurality of pivoting couplers, coupled to ends of the plurality of shoring members, respectively, allow the first wall and the second wall to pivot relative to the third wall.
Abstract:
A trench-shoring sheeting panel includes a rectangular-shaped polyethylene sheet having opposing primary surfaces and four corners, a planar support structure embedded in the polyethylene sheet, a plurality of hand hold apertures formed in the polyethylene sheet, a plurality of corner holes positioned adjacent to the four corners, and a plurality of protrusions positioned on at least one of the primary surfaces.
Abstract:
A trench shoring or shielding unit, for securing the sidewalls of an earthen formation, trench or excavation, includes a plurality of adjustable, vertically arranged panels forming a protective wall. As a shielding unit, two opposing protective walls are spaced and attached by at least two spreader bars. Each adjustable panel has opposing top and bottom ends, a C-shaped channel traversing the panel's height, and opposing side edges that inter-engage with the side edges of adjacent panels. Further, each adjustable panel is attached to at least one of two or more whalers along an inner surface of the panel by a clamp-like fastener having a bolt passing through the whaler and into the C-shaped channel of the corresponding panel. The inter-engaging side edges are segmented, preferable concave and convex, so that adjacent adjustable panels inter-engage to resist lateral torque or twisting that may be caused by shifting or collapse of the excavation.
Abstract:
The invention refers to means of shoring trench excavation.It provides a trench shoring apparatus which supports the walls of the trench and can travel by its own power or be pulled behind an excavator and consists of panels which line the walls of the trench and have braces across the trench between them, each panel comprising a frame that supports a vertical tread endless crawler track which travels longitudinally around the frame, the panel being enclosed to prevent the entry of earth, and of a construction and size suitable for being easily joined to others and cross braced to form an assembly for various depths of trenches.The apparatus may be used for underwater pipelaying.
Abstract:
An apparatus and a method for excavating and pile reinforcing trenches is disclosed. A box-like central structure serves as a frame within which excavation by customary means, e.g., externally positioned back hoes, takes place. The outside walls of said central structure form temporary trench walls supporting the surrounding dirt. The inside walls of said central structure form a rear section, behind which flat piling is driven in before the entire unit advances. Advancement is carried out by means of longitudinal anchoring to the earth in the direction of travel of the apparatus and a longitudinal propulsion mechanism riding on the box frame and alternatively drilling and pushing periodically. In addition, end aligned shafts with cutting members are disposed within the front edges of the box frame walls to facilitate tunneling forward during the propulsion cycle.
Abstract:
Apparatus for and a method of laying a pipe line utilizing an advanceable shield composed of a set of parallel elongate planks supported for longitudinal movement by a frame. These planks have cutting edges and can be shifted individually or in groups by means of rams coupled between the frame and the planks. This shield serves to excavate an open-topped trench and behind the shield is a receptacle connected to move with the frame. This receptacle is a substantially closed vessel resembling a bath tub in cross-section with an open top permitting a pipe section to be lowered therein. A rear end wall of this receptacle has an opening therein which enables the pipe section to be joined up to the end of another pipe section previously installed at the end of the pipe line.
Abstract:
A trench shoring frame comprising side wall structures, a backfill engaging structure connected to the side walls, and independently movable downward sections on each side wall with fluid pressure operated piston and cylinder devices to move these sections.
Abstract:
A system for shoring a trench, which is dug for receiving a pipeline and includes spaced apart sidewalls, includes at least two supporting units that are spaced apart from one another in the longitudinal direction of the trench and configured for absorbing transverse forces from the sidewalls. Disposed between the two supporting units is a plurality of shoring units, each configured for supporting the sidewalls of the trench. Together with the supporting units, the shoring units are configured to form a barrier-free lowering space within which the pipe can be lowered into the trench from outside the trench to the floor of the trench. A method for laying a pipe using the shoring system is also disclosed.
Abstract:
Trench shoring apparatuses configured to be moved by construction equipment and including major vertical arms, struts attached to the lower ends of the major vertical arms, connectors rigidly connected to the major vertical arms proximate the upper ends of the major vertical arms, the connectors being configured to detachably couple with the construction equipment. In some examples, struts include strut arms movably supported by the major vertical arm and strut actuators configured to selectively extend and retract the strut arm laterally across trenches, the strut arms being configured to pair with shoring plates proximate outer ends. In some examples, connectors include first retaining arms and second retaining arms extending transverse to the major vertical arm. In some examples, connectors include metallic rings defining openings sized to receive projections of construction equipment. Some examples include remote control receivers and remote control transmitters in electronic communication with the remote control receivers.