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When using the contact-span floating balance beam, in order to ensure the overall flatness of the surface layer, the balance layer is used for the middle layer and the upper layer. In order to improve the flatness, the length of the balance beam should be lengthened as much as possible. Note that the sliding shoes and the balance beam travel wheels should not stick to the asphalt to prevent the flatness of the paving layer. The floating balance beam has a good filtering effect, which avoids the influence of the fixed reference fold line and human error, and greatly improves the road surface flatness. The balance beam spanning 16~17.6 m is required to be paved in a straight line. When paving a curve, the radius of the curve is required to be greater than 600 m. Otherwise, the balance beam roller and the sliding shoe will generate large torque due to the change of the curve. Not only does it not play a balancing role, but it destroys the entire balance system, and the unevenness of the paved pavement is uneven, which affects the flatness of the road surface. Therefore, when paving a curve with a radius of less than 600 m, in addition to the slow transition of the Running Track Paver Machine, some balance beams should be removed to shorten the balance beam, reduce the lateral displacement of the balance beam, and improve the smoothness of the road surface. degree. When paving the transverse joint with the floating balance beam, since the rear half of the balance beam is on the already paved compacted road surface, the bridge should be placed under the balance beam roller 6 m long and 20 wide before paving. a wooden board with a thickness equal to the thickness of the virtual paving, and the paver opens the balance beam to automatically level when starting.
