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近年来,由于交通量和大量超载车的剧增,现有公路已无法满足经济发展和快速便利的交通运输需求。所以对部分老路进行拓宽改造,建成使用后个别地段在老路部分相继发生纵向开裂现象。通过对本地区部分改建路面纵缝的观察,分析其形成的原因,并有针对性的将拟定的防治措施建议或应用于新的改造工程实践中。
In recent years, the existing highways have not been able to meet the needs of economic development and rapid and convenient transportation due to the rapid increase of traffic volume and large number of overloaded vehicles. Therefore, part of the old road to broaden and transform, built after the use of individual sections in the old part of the road have occurred longitudinal cracking phenomenon. Through the observation of some longitudinal ruptures in the reconstructed pavement in the region, the reasons for the formation are analyzed, and the proposed control measures are proposed or applied to the new engineering practice.