trench box

Definition

Construction

• Box-shaped sheathing made of wood or steel, permanently braced across a trench for excavation and pipe laying. The trench-box unit is pulled along the trench as excavation and pipe laying proceed. It prevents sidewall cave-in during trenching. See also trench shield.

Nearby Definitions of “trench box”

• tremble
• trembler
• tremendously high frequency
• tremie seal
• trench
• trench box
• trench duct
• trench foot
• trenched footing
• trencher
• trend

Contexts for “trench box”

1 definition in context
• Construction