dead work

dead work

[¦ded ¦wərk]
(mining engineering)
Preparatory work which is for future operations and not directly productive.
References in periodicals archive ?
What seemed a dead work was resuscitated when the composer made a so-called revision in 1962-63 that actually entailed an almost complete recomposition of the original.
The Christian's inheritance is obtained by faith, and not by religious, dead works.