智能城市2025，Vol.11Issue(6)：12-15,4.DOI:10.19301/j.cnki.zncs.2025.06.004
等效刚度滞减蠕变模型研究及其仿真应用
Research on the equivalent stiffness damping creep model and its simulation application
辛松鹤1
作者信息
- 1. 中铁十五局集团有限公司,上海 200070
- 折叠
摘要
Abstract
The creep of rock is an important factor leading to long-term failure such as uneven settlement of engineering structures.In order to study the creep model that can be applied in the numerical software PFC,the isorigid stagnation model of rock is established by using elastic elements,viscous elements and power-law reduction elements.The particle contact properties were updated by looping,the model was applied to the PFC software,and uniaxial creep experiments were carried out at four stress levels to verify the model.The results show that the stiff stagnation model can better reflect the whole process of creep of rock-like materials,and is suitable for the application of PFC.关键词
蠕变/等效刚度/本构模型/PFC/离散元Key words
creep/equivalent stiffness/constitutive model/PFC/DEM分类
矿业与冶金引用本文复制引用
辛松鹤..等效刚度滞减蠕变模型研究及其仿真应用[J].智能城市,2025,11(6):12-15,4.
