近年来,日本随着经济的发展,道路工程发展也很快。设计方法、构造、施工工艺和质量都有一些改进。现将日本沥青混凝土路面和水泥混凝土路面情况概略介绍如下: 一、沥青混凝土路面 1.典型断面由于交通量和车速不断增加,日本沥青混凝土路面已由单层式改为多层式。路基分为上下两层,路面也分为两层,或两层以上。路基根据路床承载能力确定材料和厚 In recent years, with the economic development in Japan, road engineering has also developed rapidly. Design methods, construction, construction techniques and quality have some improvements. Now Japan asphalt concrete pavement and cement concrete road conditions are outlined below: First, the asphalt concrete pavement 1. Typical cross-section due to traffic and speed increasing, the Japanese asphalt concrete pavement has been changed from single to multi-storey. Subgrade divided into two layers, the road is divided into two layers, or two or more. Subgrade based on roadbed load capacity to determine the material and thickness