Graphical Construction Glossary >> Temporary Work. >> shoring >> shoring
The photo above shows the underpinning of a small railway bridge. The large section timber railway sleepers laid in a rectangular framework like this was what we called a "pigsty" at the time. This arrangement of horizontal timbers used to make a solid support had been used for centuries in underground mining and it is there that the term cribbing or box crib originated.
Box cribs were much used for emergency repairs and quick strengthening of damaged buildings. They are a classic example of shoring before the modern age of purpose made steel shore frames and hydraulic rescue systems.
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