I'm not sure if it has a name, but it definitely exists. It's been done pretty frequently with deadlifts and bench pressing (with board presses). It can be done with squats, too, for example starting on a high box and lowering the box each time, but while this is definitely by powerlifters during various speed work cycles, I've never actually heard of it done for max effort lifts during a pre-meet cycle. Usually they wave the volume and intensity for the squat. The same can be said for the bench, but what you suggested has been done before for sure.