cellular cofferdam

cellular cofferdam

[′sel·yə·lər ′kȯf·ər‚dam]
(civil engineering)
A cofferdam consisting of interlocking steel-sheet piling driven as a series of interconnecting cells; cells may be of circular type or of straight-wall diaphragm type; space between lines of pilings is filled with sand.

cellular cofferdam

A self-sustaining cofferdam fabricated of interlocking steel sheet piling; has separate inside and outside walls.