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为了确保重载交通高速公路路面具有安全、快速行驶的功能,并能长期保持路面结构的耐久性,新东名(东京-名古屋)高速公路71%的路基段和所有的隧道内均采用了复合式路面。由连续配筋混凝土板与高性能沥青铺装层组成的复合式路面,以往曾在多条路段采用,通过对这些路段的长期使用情况调查得知,复合式路面车辙的发展,不到通常沥青路面的一半,证明复合式结构提高了路面的耐久性;复合式路面裂缝发展较沥青路面慢,裂缝率达到20%的时间:沥青路面为15年,而复合式路面为25年;复合式路面的维修周期是沥青路面的1.5倍,对重载交通的路面,若考虑维修因素,复合式路面是一种经济的路面结构。此外,由于维修周期的延长,减少了沥青路面废料的产生,可减少对环境的影响。
In order to ensure safe and fast driving of the heavy traffic highway pavement and to maintain the durability of the pavement structure over a long period of time, 71% of the subgrade sections of the Shin-Tomei (Tokyo-Nagoya) expressway and all the tunnels Pavement. The composite pavement composed of continuous reinforced concrete slabs and high performance asphalt pavement has been used in many sections in the past. According to the long-term use survey of these sections, the development of compound road rut is less than that of common asphalt Half of the pavement proved that the composite structure improved the durability of the pavement; the development of the composite pavement crack was slower than that of the asphalt pavement, with the crack rate of 20%: 15 years for the asphalt pavement and 25 years for the composite pavement; Of the maintenance cycle is 1.5 times the asphalt pavement, heavy traffic on the road, if you consider the maintenance factor, the composite pavement is an economic pavement structure. In addition, due to the prolongation of the maintenance cycle, the production of asphalt pavement waste is reduced, and the impact on the environment can be reduced.