belled caisson

belled caisson

[′beld ′kā‚sän]
(civil engineering)
A type of drilled caisson with a flared bottom.

belled caisson

A caisson having an enlarged base.
References in periodicals archive ?
The building will sit on belled caissons with its lower levels comprising cast-in-place concrete and the upper levels consisting of a steel-framed superstructure.