岩土力学2012，Vol.33Issue(9)：2569-2574,6.
宽级配粗粒土渗透试验尺寸效应及边壁效应研究
Study of size and wall effects in seepage test of broadly graded coarse materials
摘要
Abstract
Size effect and wall effect are very common problems in seepage test of broadly graded coarse materials. A series of seepage tests are performed. The size effect is analyzed and the principle for apparatus size selection is studied. It is proposed that the apparatus diameter is not less than 6 times of test material's d85. Effects of different methods for treating grains of size over limit on permeability test results are discussed. It is concluded that carefully taking equivalently alternative method is acceptable; while scale method is not. The wall effect is discussed and the thickness of wall treatment layer is proposed.关键词
渗透试验/尺寸效应/边壁效应/超径处理Key words
seepage test/ size effect/ wall effect/ oversize treatment分类
建筑与水利引用本文复制引用
朱国胜,张家发,陈劲松,胡智京..宽级配粗粒土渗透试验尺寸效应及边壁效应研究[J].岩土力学,2012,33(9):2569-2574,6.基金项目
国家自然科学基金项目(No.50679004) （No.50679004）
国家"十一五"科技支撑计划(No.2008BAB29B02) （No.2008BAB29B02）
国家"十二五"支撑计划课题(No.2011BAB10B04) （No.2011BAB10B04）
中央级公益性科研院所基本科研业务费(No.YWF0909). （No.YWF0909）
