摘要
土的结构性是决定土体物理力学性质的根本因素之一,但是长期以来没有得到人们充分的重视。本文分别采用微观观测和宏观力学试验手段,分析由冻胀融沉作用而引起的辽西风积土结构性变化。通过试验发现,土的结构随着冻胀与融沉产生显著的变化,并且在冻融作用后,土的强度明显降低。本论文的研究使该区季节性冻土的结构性研究向前推进了一步。
The structural soil is a decidable factor of soil physical and mechanical properties, but ever since a long time ago it has been sufficient important. The structural changes caused by freeze-thaw action were gained by microscopic observation and macro-mechanical test. By experiment the structuredness of aeolian soil caused distinct change with frost heave and thawing settlement, and the strength of aeolian soil distinct reduced. Therefore, structural studies of Aeolian soil in the seasonally frozen area needed to step forward.
出处
《土壤通报》
CAS
CSCD
北大核心
2008年第4期822-825,共4页
Chinese Journal of Soil Science
基金
冻融与渗流耦合作用下风积土路基结构性演变的研究(50478033)
关键词
冻胀融沉
风积土
结构性
Frost heave and thawing settlement
Aeolian soil
Structuredness
