水资源与水工程学报2017，Vol.28Issue(1)：230-235,6.DOI:10.11705/j.issn.1672-643X.2017.01.41
低温沥青混凝土邓肯-张模型参数整理方法
Collection method of Duncan-Chang model parameters for low temperature asphalt concrete
宋东 1余梁蜀 1王晓奇 1张再望1
作者信息
- 1. 西安理工大学水利水电学院,陕西西安710048
- 折叠
摘要
Abstract
Since the complex mechanical properties of asphalt concrete occurs,to acquire accurate Duncan Chang model parameters K,n and Rfunder the low temperature environments,the two-point method,the all-datapoint method and the segmentation method were used for data process,and fitting analyses was conducted for the inversely calculated and tested stress-strain curves based on the pre-calculated results in the paper.The results showed that,the optimal fitting curve was obtained by the segmentation method at confidence level larger than 0.9;judged from the calculated results,the method that to select the 60％ ～ 95 ％ stress level test points to involv in the calculation was the most suitable for the model parameter calculations of asphalt concrete static triaxial test under low temperature environments.关键词
低温沥青混凝土/邓肯-张模型/应力-应变/分段法/拟合曲线Key words
low temperature asphalt concrete/Duncan-Chang model/stress strain/subsection method/fitting curve分类
建筑与水利引用本文复制引用
宋东,余梁蜀,王晓奇,张再望..低温沥青混凝土邓肯-张模型参数整理方法[J].水资源与水工程学报,2017,28(1):230-235,6.
