A selectively frictionally engaged hole cover for a bore hole cored from a paved surface that includes a cover plate configured to cover the bore hole and support vehicular traffic. An engagement mechanism is attached to the cover plate and extends down into the bore hole. The engagement mechanism is configured to be actuated by a user torque input that causes an engagement plate selectively shiftable relative to the cover plate to thereby shift an engagement member along a engagement member stop and thus radially outwardly or inwardly, causing the engagement mechanism to selectively engage or disengage the wall of the bore hole. When the engagement member is in frictional contact with the hole, unintentional extraction of the engagement mechanism is prevented. The selectively frictionally engaged hole cover effectively provides a temporary cover for a bore hole in a road, parking lot, or other paved surface.

A flexible mat system, including a plurality of base platforms, each respective base platform having a first pattern of phase transforming columns and voids extending from a respective flat member, and a plurality of plane-engaging runway platforms, each respective plane-engaging runway platform having a second, reversed pattern of phase transforming columns and voids extending from a respective flat member such that each respective plane-engaging runway platform is lockingly engagable to a respective base platform to yield a landing segment with parallel top and bottom flat members. Each respective base platform is an aluminum/steel composite. Each respective phase transforming column is further comprised of a plurality of stacked operationally connected phase transforming cellular members. Each respective cell further comprises six hexagonally spaced support members defining six hexagonally arrayed sides, with two opposing sides define x-shaped struts extending between adjacent support members. Remaining sides define parallel struts extending between adjacent support members. Each respective phase transforming cellular member can shift from a first stable configuration to a second stable configuration in response to an applied load.

A road plate moving system and method is disclosed that makes it easier, safer, and more economical to move road plates. A frame detachably attaches to a road plate at the centre of the road plate, and the frame is detachably attached to a vehicle, and the frame is attached to rollers that straddle the road plate and are configured to move in the desired direction of travel. Each roller has a lifting mechanism to adjust the height of the frame relative to the bottom of the rollers. In use, the frame is attached to the road plate, and the road plate is lifted off the ground by the rollers lifting the frame, and the frame and road plate are pulled forward or backwards by the vehicle to move the road plate, which is then lowered to the ground. In a second embodiment, the road plate is lifted by a lifter located above the centre of the road plate.

A selectively frictionally engaged hole cover for a bore hole cored from a paved surface that includes a cover plate configured to cover the bore hole and support vehicular traffic. An engagement mechanism is attached to the cover plate and extends down into the bore hole. The engagement mechanism is configured to be actuated by a user torque input that causes an engagement plate selectively shiftable relative to the cover plate to thereby shift an engagement member along a engagement member stop and thus radially outwardly or inwardly, causing the engagement mechanism to selectively engage or disengage the wall of the bore hole. When the engagement member is in frictional contact with the hole, unintentional extraction of the engagement mechanism is prevented. The selectively frictionally engaged hole cover effectively provides a temporary cover for a bore hole in a road, parking lot, or other paved surface.

In one embodiment, a kit for airfield matting comprises a plurality of matting panels each including a rectangular mat core having a first side, a second side, a first end, and a second end. The first side has a first side connector. The second side has a second side connector. The first side connector of one matting panel of the plurality of matting panels is configured to couple with at least a part of the second side connector of one or more side neighboring matting panels of the plurality of matting panels to be connected therewith. The first end has a first end connector. The second end has a second end connector. The first end connector of one matting panel of the plurality of matting panels is configured to couple with the second end connector of an end neighboring matting panel of the plurality of matting panels to be connected therewith. The matting panels each have a length of not greater than about 84 inches.

In one embodiment, a kit for airfield matting comprises a plurality of matting panels each including a rectangular mat core having a first side, a second side, a first end, and a second end. The first side has a first side connector. The second side has a second side connector. The first side connector of one matting panel of the plurality of matting panels is configured to couple with at least a part of the second side connector of one or more side neighboring matting panels of the plurality of matting panels to be connected therewith. The first end has a first end connector. The second end has a second end connector. The first end connector of one matting panel of the plurality of matting panels is configured to couple with the second end connector of an end neighboring matting panel of the plurality of matting panels to be connected therewith.

The matting panels each have a length of not greater than about 84 inches.