某国省干线重载交通的轴载调查统计分析

Statistical Analysis of Axial Load Investigation of Heavy Traffic in a Provincial Main Line

重载交通对沥青路面结构的影响已引起广泛关注,病害增多,道路表面功能衰减快是 亟待解决的问题。交通荷载是沥青路面结构设计的重要参数,而实际该参数很难准确的预测。为了 减少误差,采用轴载谱作为设计参数。并以某重载交通公路为例,进行实地调研、检测数据对比, 发现在该交通流的持续作用下使用5年后累计标准轴次可达到设计10年的累计轴次标准。可见重载 是引起沥青路面病害,从而缩短路面使用寿命的重要原因。

The impact of heavy-duty traffic on asphalt pavement structure has caused widespread concern, and the increase of diseases and the rapid attenuation of road surface function are urgent problems to be solved. Traffic load is an important parameter for the design of asphalt pavement structure, and it is difficult to accurately predict this parameter. In order to reduce the error, the axle load spectrum is used as the de sign parameter. Taking a heavy-duty traffic road as an example, the field investigation and comparison of test data help discover that he cumulative standard axis of 5 years after the continuous use of the traffic flow can reach the cumulative axis standard of design for 10 years. It can be seen that heavy load is an im portant cause of causing asphalt pavement disease and shortening the service life of the pavement.