Abstract: Combined with the main roads which were built by our country or Sichuan province and which pass through Chongqing,this paper proposed the regulation of the axel load distribution after the survey of axel load table on some main roads mentioned previously on the spot.Based on results of the survey,the influence of the pavement fatigue life caused by the overload vehicles was primarily analyzed.The results of the survey will play an important role in the following research that will focus on the destroy of the overweight vehicles as well as the countermeasures.

Key words: overload, axel load distribution, fatigue life

摘要： 结合重庆国省道主干线公路,通过对重庆市几条主要国省道主干线公路上车辆的轴载谱现场调查,提出了重庆干线公路轴重分布规律 .在此基础上,初步分析了超重车辆对路面疲劳寿命的影响 .所得结果对于进一步研究超限车辆对路面的损坏与对策具有重要意义 .

关键词: 超载, 轴重分布, 疲劳寿命