Abstract: Presented is a heavy vehicle, such as a transport vehicle or civil engineering vehicle, of a mass greater than 500 metric tons and operable to generate a motive power. The vehicle includes tires of radial structure having a diameter greater than 3.5 meters, a front axle coupled to at least two tires, and at least one rear axle coupled to at least two tires and by which is transmitted at least part of the motive power. At least one of the axles includes at least four tires associated in pairs symmetrically on either side of the axle, and two associated tires have different axial widths.

Abstract: Presented is a heavy vehicle, such as a transport vehicle or civil engineering vehicle, of a mass greater than 500 metric tons configured to carry heavy loads and operable to generate a motive power. The vehicle includes tires of radial structure having a diameter greater than 3.5 meters and an axial width greater than 37 inches, a front steering axle coupled to at least two tires, at least one rear axle coupled to at least two tires and by which is transmitted at least part of the motive power, and a third, intermediate axle coupled to at least two tires. The intermediate axle is a steering axle and is moveable to a raised position. When the intermediate axle is in the raised position, the tires coupled to the intermediate axle are not in contact with the ground.

Abstract: The invention relates to a heavy vehicle, such as a transport vehicle or a “civil engineering” vehicle, of a mass greater than 500 metric tons, fitted with tires of radial structure of a diameter greater than three meters fifty, and comprising a front axle provided with at least two tires and at least one rear axle comprising at least two tires and by which is transmitted at least part of the motive power. According to the invention, at least one of the axles comprises at least four tires associated in pairs symmetrically on either side of the axle, two associated tires having different axial widths.

Abstract: The invention relates to a heavy vehicle, such as a transport vehicle or a “civil engineering” vehicle, of a mass greater than 500 metric tons, fitted with tires of radial structure of a diameter greater than three meters fifty having an axial width greater than 37 inches, and comprising a front steering axle provided with at least two tires and at least one rear axle comprising at least two tires and by which is transmitted at least part of the motive power. According to the invention, the vehicle comprises a third, intermediate axle comprising at least two tires, said intermediate axle being a steering axle and said intermediate axle being liftable in such a way that, in the raised position, the tires of the axle are not in contact with the ground.