钙质砂动强度试验研究

The Cyclic Strength Test Research on Calcareous Sand

钙质砂是一种CaCO3含量超过50％以上的特殊岩土介质，具有独特的力学和工程性状。利用动三轴试验，研究钙质砂在循环荷载作用下动应变、动孔压、动强度及液化特性。

The calcareous sand is a special rock and soil medium which composes more than 50% CaCO3 and has typical mechanies and engineering properties. In thes paper the characters of calcareous sand cyclic strain , cylic pore pressure,cyclic strength and liquidation under cyclic load are investigated by cyclic triaxial test .