山东大学学报 (工学版) ›› 2023, Vol. 53 ›› Issue (3): 60-68.doi: 10.6040/j.issn.1672-3961.0.2021.598
Jian LIU1(),Hao YANG2,Xiaolin CUI3
摘要:
针对土与结构接触渗流过程中颗粒流失问题, 基于渗流和围压联合作用下接触渗流破坏试验装置, 试验研究黏粒质量分数、围压、接触面粗糙程度3种因素对该条件下颗粒冲蚀过程的影响效果。渗流和围压联合作用下土-结构接触面颗粒冲蚀呈现渗流稳定阶段、颗粒迁移阶段、颗粒冲蚀阶段3个阶段。通过多因素方差分析计算3种因素对土-结构接触面颗粒冲蚀各条件指标的影响, 在95%置信区间内黏粒质量分数的影响性最大, 围压次之, 粗糙度最小; 采用准牛顿法进行公式拟合后, 提出接触面颗粒冲蚀条件影响公式。本研究成果可为含接触面基础设施设计提供数据支撑。
中图分类号:
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