摘要
为了了解影响砂土永久变形的关键因素,对上海市嘉定地区的砂土进行了基本物理力学性能试验,随后在万能材料试验机上对砂土进行了重复加载动三轴试验。结果表明,偏应力对塑性变形的影响力最大,含水率次之,压实度的影响力最小。
In order to find the key factors influencing the sand permanent deformation,the basic physical and mechanical performance test for the sandy soil in Shanghai Jiading district was conducted.Then a dynamic triaxial test of sandy soil under repeated load was made by using material testing system（MTS）.The result showed that the deviatoric stress has the most influence on plastic deformation and then is the water content,and the influence of the compact degree is minimal.
出处
《交通科技》
2016年第3期140-142,共3页
Transportation Science & Technology
关键词
路面工程
砂土
永久变形
偏应力
road engineering
sandy soil
permanent deformation
deviatoric stress
