车辆载荷作用下路基土的变形特性

Deformation behavior of subgrade soils under axle loading

通过路基土在重复荷载作用下的室内实验 ,研究了路基土回弹变形和累积变形随荷载轴次增长的发展规律以及各种因素对累积变形的影响。所有试验均在MTS试验系统上完成。相关研究及分析成果是发展路面力学设计方法所必备的依据之一。

This paper reports the laboratory research of subgrade soils under repeated load applications,including the resilient modulus of subgrade soils, the development of permanent deformation over load accumulation, and the influence of various factors on permanent deformation.All tests were performed on MTS.Research results and the succeeding analysis can sever as one of the sound platforms to develop mechanistic-based pavement design method.