Research on the Dynamic Response Law of Residual Red Clay Roadbed under Different Humidity Conditions
Under different soil humidity,axle weight of vehicle and traveling speed,field driving test was carried out on K 18+610 test section of Nanning-Zhanjiang Expressway to study the dynamic response law of Guangxi residual red clay roadbed under different humidity conditions and put forward design and construction measures suggestions.The results show that:the dynamic characteristics decay faster in the region of 0-4.0 m in the transverse direction and 0-1.3 m in the depth direction,and when exceeding this range,the influence of driving action on the dynamic characteristics of the roadbed is smaller;with the increase of axle weight and speed,the dynamic stress,acceleration and dynamic displacement of the roadbed in different positions increase to different degrees;the change of the water content of the roadbed will lead to the degradation of the performance of the roadbed,but to the dynamic stress,acceleration and dynamic displacement and other dynamic characteristic indexes are affected differently.
expresswayred clay roadbeddifferent humiditydynamic characteristicswater contentanti-drainageweight and speed limit
万方数据
维普
