辽宁工程技术大学学报（自然科学版）2024，Vol.43Issue(6)：692-698,7.DOI:10.11956/j.issn.1008-0562.20230306
基于Weibull分布的水稳碎石基层损伤本构模型研究
Damage principal model of cement stabilized aggregates subgrade based on Weibull distribution
摘要
Abstract
In order to investigate the mechanical properties of cement stabilized aggregates semi-rigid base layer,the damage constitutive model of cement stabilized aggregates semi-rigid base layer under uniaxial compression load was constructed by theoretical analysis and experimental method,and the damage constitutive model was verified with the support of 7 d unconfined compression test,and the expansion process of cumulative damage of cement stabilized aggregates of different ages and cement stabilized aggregates doped with red mud and rubber powder was analyzed.The results show that the damage factor η of the damage constitutive model increases with the addition of red mud rubber powder and the increase of age,and the values of the distribution parameters m and F0 decrease,which can effectively inhibit the damage extension,and the theoretical curves of the constitutive model and the test curves fit well,which can provide theoretical references for the subsequent calculations of the related calculations of the cement stabilized aggregate.关键词
水稳碎石/Weibull分布/结构损伤/本构模型/赤泥橡胶粉掺量Key words
cement stabilized aggregates/Weibull distribution/structural damage/constitutive mode/red mud rubber powder content分类
交通工程引用本文复制引用
王广胤,孙海霞,王书鹏,张科..基于Weibull分布的水稳碎石基层损伤本构模型研究[J].辽宁工程技术大学学报（自然科学版）,2024,43(6):692-698,7.基金项目
辽宁省自然科学基金项目(2019-ZD-0207) （2019-ZD-0207）
辽宁省教育厅高校基本科研项目(JYTMS20231188) （JYTMS20231188）
