柔性路面设计问题是一个至今没有很好解决的课题。自罗马第一个修建道路以来将近二千年的时间,目前提出的路面设计方法仍然依赖于成功或失败的经验。第十二届国际道路会议曾做过一个调查,现在各国使用的路面设计方法是多种多样的,但仍以美国的CBR法在世界应用最广。弯沉仪自WASHO于一九五三年开始应用以来,由于它的简便性,现在几乎在世界各国得到推广,特别是对于旧路补强设计,有很多国家已经拟订了弯沉设计方法,对于新 Flexible pavement design is a problem that has not been solved so far. Nearly two thousand years have passed since Rome first built the road, and the pavement design approach currently proposed still depends on the experience of success or failure. At the Twelfth International Road Conference, a survey has been conducted. Nowadays, the pavement design methods used in various countries are varied. However, CBR methods in the United States are still the most widely used in the world. Deflectometer Since its inception in 1953, WASHO has been popularized in almost all countries of the world for its simplicity. In particular, many countries have developed deflexion design methods new