水资源与水工程学报2016，Vol.27Issue(6)：217-221,5.DOI:10.11705/j.issn.1672-643X.2016.06.39
压缩过程中粗粒土渗透性变化的试验分析
Experimental analysis of permeability coefficients changes of coarse grained soil during compression
摘要
Abstract
In order to study the factors affecting the permeability coefficients of coarse grained soils, the sands used in actual engineers were applied , through the indoor permeability tests, different test condi-tions were used to study the effects of particle size, dry bulk density and relative compactness on permea-bility coefficients of coarse grained soils. The results showed that:for the same particle size composition of coarse grained soil, the permeability coefficient decreased with the increases of the dry density and the relative compactness. In the coarse sand range of average particle size, the permeability coefficient in-creased rapidly as the particle size increased, and when the average particle size was in the range of fine gravels, the permeability coefficient varied littleincreased as particle size increased. This research indica-ted that compression decreased permeability coefficients of coarse sand significantly, while affected per-meability coefficients of fine gravels little.关键词
粗粒土/渗透系数/干容重/均值粒径/相对密实度Key words
coarse grained soil/permeability coefficient/dry bulk density/average particle size/rela-tive compactness分类
建筑与水利引用本文复制引用
邵健伟,鲁程鹏,马克迪,黄一昕,黄茵,高连庆..压缩过程中粗粒土渗透性变化的试验分析[J].水资源与水工程学报,2016,27(6):217-221,5.基金项目
中国水利水电科学研究院流域水循环模拟与调控国家重点实验室开放研究基金项目( IWHR-SKL-201502) （ IWHR-SKL-201502）
河海大学国家级实验教学示范中心大学生创新训练项目 （）
