【摘要】 套管-水泥环-土体模型中,水泥环与土体采用实体建模,并且二者之间的相互作用采用接触进行模拟。套管与水泥环之间采用共节点固定。采用有限元分析软件ADINA对模型进行实现。有限元模型考虑了材料非线性、几何非线性,采用位移荷载模拟土层间的相对运动。根据不同土层错距下套管的最大应变分析了土层错距对套管的受力影响。更多还原

【Abstract】 In the casing-cement ring-soil model,solid element is used for cement ring and the soil,and interaction between them is simulated by contact element,casing and cement ring are fixed.ADINA is used considering material nonlinearity and geometrical nonlinearity,the displacement load is used to model soil moving.According to maximum strain,the mechanical performance is discussed.更多还原