不同土质回弹模量的试验探讨

路基弯沉值作为路基验收的一个重要技术指标,它主要决定于路基顶面在一定应力级位下抵抗变形的能力,即回弹模量。设计回弹模量值不仅决定路基弯沉值的大小,而且又是路面结构层厚度设计的重要参数。回弹模量取值的可靠与否关系到路基的整体强度和路面结构层的厚度。因此回弹模量的研究是一项非常重要的课题,我中心试验室对该课题做了大量的试验,最后总结出该地区粉性土、粘性土、石灰改善土的回弹模量值,供设计、施工参考。

Subgrade Subgrade Deflection Acceptance value as a key technical indicators, which depend mainly on the embankment top surface in a certain stress level position to resist deformation under the capacity, that is resilient modulus. Designed to not only determine the value of the modulus subgrade resilient deflection value of the size, and also the thickness of pavement structure design of important parameters. Resilient modulus values of the reliability of the overall strength of the relationship between the subgrade and pavement structure thickness. Therefore, modulus of resilience is a very important issue, and I am Central Laboratory of the subjects have done a lot of tests, concluded from the area silt, clay, lime to improve soil value of the modulus of resilience, for the design and construction information.