摘要
通过杭州地区的典型饱和粉土的动三轴试验,研究饱和粉土中细粒对粉土动力特性的影响.研究结果显示:粘粒质量变化对粉土动强度影响显著,但其影响并不是随着粘粒质量的增加单向增长,而是在粘粒达到或接近12%左右时表现出的动强度最低,并在此区域有临界点出现;粉粒质量变化对粉土动强度的影响则是呈单调关系,即粉土动强度会随着粉粒质量的增加而增大;细粒对粉土的孔压发展影响明显,在孔压发展的初始阶段粘粒质量占12%时增量最显著.
Through a series of dynamic triaxial tests on typical saturated silt in Hangzhou,the influence of fine particles on the dynamic characteristics of silt is studied.The results show that the dynamic strength is significantly influenced by the clay content,but it does not increase monotonically with the increase of the clay content.When the clay content is around 12%,the dynamic strength reaches the lowest value and there is a critical point in this range.The effect of the variation in the silt content on the dynamic strength of powder soil is monotonous,i.e.,the dynamic strength of power silt increases with the increase of the silt content.The effect of fine particles on the development of the pore water pressure in silt is significant and the percent increase is the largest at the clay content of 12%in the initial development stage of pore pressure.
出处
《浙江工业大学学报》
CAS
北大核心
2016年第3期300-304,共5页
Journal of Zhejiang University of Technology
基金
浙江省科技厅基金资助项目(2013C31034)
关键词
饱和粉土
粘粒
粉粒
动强度
动孔压
saturated silt
clay particle
silt particle
dynamic strength
pore water pressure
