abaqus桩土模拟地应力平衡？

请问一些，在进行桩土模拟时，

A geostatic procedure with maximum displacement tolerances is supported only for the following materials: elastic, porous elastic, extended cam-clay plasticity model and mohr-coulomb plasticity model. In general, the use of other materials with this procedure may lead to poor convergence or no convergence of the analysis.

A geostatic procedure with maximum displacement tolerances is supported only for continuum elements with pore pressure degree of freedom and the corresponding stress/displacement continuum elements. In general, the use of other elements with this procedure may lead to poor convergence or no convergence of the analysis.

1146 elements are distorted. Either the isoparametric angles are out of the suggested limits or the triangular or tetrahedral quality measure is bad. The elements have been identified in element set WarnElemDistorted.

The plasticity/creep/connector friction algorithm did not converge at 270 points

The plasticity/creep/connector friction algorithm did not converge at 174 points

The plasticity/creep/connector friction algorithm did not converge at 48 points

老是出现上面的问题怎么解决呀？