A protective panel (12) constructed of a corrugated aluminum sheet (16) that has alternating, oppositely opening, longitudinal channels (18, 20). The end edges and the lateral edges of the sheet are rigidified respectively by a transverse (22) and longitudinal rigidifying members (24). Mounting stations (26) are located on one side of the protective panel (12) and are formed by transverse support plates (34) that extend across the top of a selectd channel and that are reinforced by gusset webs (38) to create a beam section. A pair of opposed protective panels (12) are interconnected and retained apart by a plurality of spreader beams (14) extending between opposed mounting stations (26) to create a protective structure (10) in the form of a trench box. The protective structure (10) may be supported by leg members or may be suspended from a wheeled carriage. A plurality of protective structures (10) may be stacked.
展开▼
