山东大学学报 (工学版) ›› 2022, Vol. 52 ›› Issue (4): 201-209.doi: 10.6040/j.issn.1672-3961.0.2022.120
• • 上一篇
李尧,李嘉评,韩宽
LI Yao, LI Jiaping, HAN Kuan
摘要： 基于挪威岩土工程研究所(Norwegian Geotechnical Institute,NGI)研发的单剪仪及其试验,建立NGI型单剪试验离散元模型,研究试样的应力状态与破坏模式。结果表明,试样的破坏面既不在水平面也不在垂直面,破坏时最大剪应力在水平面附近;随着试样孔隙比的减小,垂直平面会先于水平平面破坏,且试验结果分析中使用的常数k与其模拟值的偏差减小。本研究提出确定单剪试验破坏面位置的理论计算方法,发现常数k取值方法存在局限性,应结合单剪试验离散元模拟分析单剪试验的应力状态与破坏模式。
中图分类号:
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