By Jeremy Rifflard
Emergency shoring is the temporary support of structures during construction, collapse, or demolition. Shoring systems protect rescuers while working in a potential or confirmed collapse area. Shoring is a theoretical approach in which the shore acts like a funnel. The load above the shore is collected with headers and sheathing. The weight of the structure above is transferred through the posts and then distributed safely into the ground.
In a lean-to collapse, wooden or concrete floors that detach from one or both sides of their position and sag toward the ground are among the most dangerous of collapse situations. If the void space is less than four feet in height at the tallest area, cribbing is usually the preferred method of shoring under this collapsing upper level.
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