工程地质学报2018，Vol.26Issue(6)：1409-1414,6.DOI:10.13544/j.cnki.jeg.2017-432
基于颗粒破碎的粗粒土剪切强度的模拟分析
PFC2D SIMULATION OF ROCKFILL SHEAR STRENGTH BASED ON PARTICLE FRAGMENTATION
摘要
Abstract
PFC2 Dcode is used to simulate the direct shear tests of rockfills, taking into consideration of the particle crushing. The methods to establish the model of the rockfill sample and conduct the tests are given. The results obtained from the numerical simulation are analyzed from several aspects, such as the characteristics of stress-strain relationship, volume strain and shear strength. The effect of the contact-bond strength between basic particles, the porosity of the single rock particle and the porosity of the rockfill material on the shear strength of the rockfills are also discussed.关键词
粗粒土/直剪试验/剪切强度/颗粒破碎/分形/PFC2D数值模拟Key words
Rockfill/Direct shear test/Shear strength/Particle breakage/Fractals/PFC2D simulation分类
天文与地球科学引用本文复制引用
徐永福..基于颗粒破碎的粗粒土剪切强度的模拟分析[J].工程地质学报,2018,26(6):1409-1414,6.基金项目
国家自然科学基金面上项目(41472251) （41472251）
国家自然科学基金重点项目(41630633)资助. （41630633）
