Tyre for a heavy vehicle of construction plant type, comprising a crown reinforcement radially on the inside of a tread and radially on the outside of a carcass reinforcement, - the crown reinforcement comprising a protective reinforcement, a working reinforcement and a hoop reinforcement, - the protective reinforcement, which is radially outermost in the crown reinforcement, comprising at least one protective layer (51, 52), the protective layer (51, 52) comprising metallic reinforcers that form an angle at least equal to 10° with a circumferential direction (XX') tangential to the circumference of the tyre, - the working reinforcement comprising at least two working layers (61, 62), each working layer (61, 62) comprising metallic reinforcers that form an angle at least equal to 15° and at most equal to 45° with the circumferential direction (XX') and are crossed from one working layer to the next, - the hoop reinforcement being formed by a circumferential winding, in the circumferential direction (XX'), of a ply of metallic reinforcers extending from an initial radially inner end to a final radially outer end, forming a spiral, such that the hoop reinforcement comprises at least two hooping layers (71, 72) around the entire circumference and at least three hooping layers (71, 72, 73) over an angular sector A, delimited by the initial and final ends (81, 82), respectively, of the hoop reinforcement, the metallic reinforcers of the hoop reinforcement forming an angle at most equal to 2.5° with the circumferential direction (XX'), characterized in that the hoop reinforcement comprises at least one discontinuity positioned circumferentially between the initial end and final end, respectively, and in that any discontinuity is positioned circumferentially, with respect to the initial or final end (81, 82), forming an angle (B1, B2) at least equal to 90°. - the crown reinforcement comprising a protective reinforcement, a working reinforcement and a hoop reinforcement, - the protective reinforcement, which is radially outermost in the crown reinforcement, comprising at least one protective layer (51, 52), the protective layer (51, 52) comprising metallic reinforcers that form an angle at least equal to 10° with a circumferential direction (XX') tangential to the circumference of the tyre, - the working reinforcement comprising at least two working layers (61, 62), each working layer (61, 62) comprising metallic reinforcers that form an angle at least equal to 15° and at most equal to 45° with the circumferential direction (XX') and are crossed from one working layer to the next, - the hoop reinforcement being formed by a circumferential winding, in the circumferential direction (XX'), of a ply of metallic reinforcers extending from an initial radially inner end to a final radially outer end, forming a spiral, such that the hoop reinforcement comprises at least two hooping layers (71, 72) around the entire circumference and at least three hooping layers (71, 72, 73) over an angular sector A, delimited by the initial and final ends (81, 82), respectively, of the hoop reinforcement, the metallic reinforcers of the hoop reinforcement forming an angle at most equal to 2.5° with the circumferential direction (XX'),