软土中桥梁基础的流变性能试验研究

Experimental study on rheological characteristic of bridge based in weak soil

利用应力式直剪蠕变仪,对取自江苏徐州的软土土样进行流变、桩—软土界面流变试验。得到不同应力状态下软土的流变曲线后归纳比较了流变的过程和特点,分析其中的黏弹塑性关系,建立了四元件黏弹塑性流变模型。

By using＂Stress type direct shear creepmeter＂,we experimentalized weak soil from Xuzhou Jiangsu for rheology,pile-weak soil interface flowing deformation. After obtaining the rheological curves of weak soil under different stress states,the process and characteristics of rheology were summarized and the viscoelastic plastic relationship was analyzed. A four component shear rheology model was established.