Tread for a Heavy-Duty Vehicle Tire

Tread () for a heavy-duty vehicle tire having, when new, a tread surface (), with at least one evolving cut () comprising a part () hidden inside the tread which is delimited by opposing walls () distant from one another by a maximum width Lc. The part () being extended towards the tread surface () by a sipe (), opening into the hidden part () to be offset from one of the walls () delimiting the hidden part to form a bridge situated radially over said hidden part (). The tread having a plurality of grooves () open when new onto the tread surface (), these grooves () opening into an evolving cut () to form a connecting region (), the tread () further comprising, in at least 50% of the connecting regions (), a protuberance () extending over the entire height Hc of the hidden part () and over a maximum thickness Ep so as to act as a support for the bridge () situated radially over the hidden part () in the connecting region ().