【摘要】 利用自制的土槽试验台,对4种农田土壤(黑土、黑钙土、风砂土、草甸土)进行单轴压缩试验,用位移传感器和函数记录仪记录土壤受压后变形和时间的关系。结果表明:每种土壤在不同载荷和水分状态下的流变曲线均服从Burgers模型,方程的4个流变参数(EM,EK,ηM,ηK)均随载荷的增大而增大;随土壤含水量提高,流变参数值近似地呈指数规律递减。更多还原

【Abstract】 The uniaxial compaction behavior of four agricultural loose soils, black soil, chernozem, sandy soil and meadow soil in Jilin province of China, was examined.The results showed that the rheological curves of the four soils under varied moisture contents and applied loads followed the Burgers model. The relation among the rheological coefficients of the four soils with their moisture contents, clay particle contents and applied normal loads were analyzed and discussed.更多还原