Abstract: The present invention is a support structure including elongate hollow cylinder and flat plates secured thereto. A first rigid flat plate is horizontally disposed in overlying relation to each hollow cylinder and a second rigid flat plate is horizontally disposed in underlying relation to each hollow cylinder. Stress-distributing strengthening members are circumferentially positioned about the hollow cylinder and secured to their associated rigid flat plates. A key may extend from a first end of each hollow cylinder and a mating socket may be formed in a second end of each hollow cylinder to facilitate end-to-end interconnection of a plurality of hollow cylinders.

Abstract: The present invention includes an interlock having an elongate male plug and an elongate female socket. The socket has an open rectangular cross-section with a receiving cavity designed to receive and ensleeve the plug, which also has a rectangular cross-section. The socket includes a back wall, top wall, bottom wall, and a discontinuous front wall creating an upper and lower flange with an opening existing between the free ends of the flanges. The bottom, top, and back walls are planar in shape providing three planes on which the socket can mate to a planar portion of a structure, such as a sheet pile. The plug includes a flange-contacting surface with a pile receipt disposed inwardly from the flange-contacting surface. The inwardly set pile receipt allows an end of a plate to be secured to the plug within the outer perimeter of the plug resulting in an obstruction free flange-contacting surface.

Abstract: The present invention includes an interlock having an elongate male plug and an elongate female socket. The socket has an open rectangular cross-section with a receiving cavity designed to receive and ensleeve the plug, which also has a rectangular cross-section. The socket includes a back wall, top wall, bottom wall, and a discontinuous front wall creating an upper and lower flange with an opening existing between the free ends of the flanges. The bottom, top, and back walls are planar in shape providing three planes on which the socket can mate to a planar portion of a structure, such as a sheet pile. The plug includes a flange-contacting surface with a pile receipt disposed inwardly from the flange-contacting surface. The inwardly set pile receipt allows an end of a plate to be secured to the plug within the outer perimeter of the plug resulting in an obstruction free flange-contacting surface.

Abstract: An elongate structure for supporting heavy loads includes an elongate hollow cylinder having a longitudinal axis of symmetry. Stress-distributing strengthening members are circumferentially positioned about and secured to the hollow cylinder in parallel relation to the longitudinal axis of symmetry. A first flat plate is disposed in overlying relation to the hollow cylinder and to the first, upper pair of strengthening members and a second flat plate is disposed in underlying relation to the hollow cylinder and to the second, lower pair of strengthening members. The second flat plate is disposed in a horizontal plane in parallel and diametrically opposed relation to the first flat plate. A key extends from a first end of the hollow cylinder and a mating socket is formed in a second end of the hollow cylinder to facilitate end-to-end interconnection of a plurality of the hollow cylinders.

Abstract: A temporary bridge for supporting heavy loads includes elongate hollow cylinders. A first rigid flat plate is horizontally disposed in overlying relation to each hollow cylinder and a second rigid flat plate is horizontally disposed in underlying relation to each hollow cylinder. Stress-distributing strengthening members formed by a pair of legs that are angularly disposed with respect to one another are circumferentially positioned about each hollow cylinder and the respective free ends of the legs are secured to their associated rigid flat plates. A key extends from a first end of each hollow cylinder and a mating socket is formed in a second end of each hollow cylinder to facilitate end-to-end interconnection of a plurality of hollow cylinders. Further embodiments include longitudinally-disposed timber mats, pedestrian walkways and curvature-creating members so that the bridge may follow a non-linear path of travel.

Abstract: A temporary bridge for supporting heavy loads includes elongate hollow cylinders. A first rigid flat plate is horizontally disposed in overlying relation to each hollow cylinder and a second rigid flat plate is horizontally disposed in underlying relation to each hollow cylinder. Stress-distributing strengthening members formed by a pair of legs that are angularly disposed with respect to one another are circumferentially positioned about each hollow cylinder and the respective free ends of the legs are secured to their associated rigid flat plates. A key extends from a first end of each hollow cylinder and a mating socket is formed in a second end of each hollow cylinder to facilitate end-to-end interconnection of a plurality of hollow cylinders. Further embodiments include longitudinally-disposed timber mats, pedestrian walkways and curvature-creating members so that the bridge may follow a non-linear path of travel.

Abstract: An elongate structure for supporting heavy loads includes an elongate hollow cylinder having a longitudinal axis of symmetry. Stress-distributing strengthening members are circumferentially positioned about and secured to the hollow cylinder in parallel relation to the longitudinal axis of symmetry. A first flat plate is disposed in overlying relation to the hollow cylinder and to the first, upper pair of strengthening members and a second flat plate is disposed in underlying relation to the hollow cylinder and to the second, lower pair of strengthening members. The second flat plate is disposed in a horizontal plane in parallel and diametrically opposed relation to the first flat plate. A key extends from a first end of the hollow cylinder and a mating socket is formed in a second end of the hollow cylinder to facilitate end-to-end interconnection of a plurality of the hollow cylinders.