In real practice, the construction of drainage wells is always accompanied by smear effect, whereas it is scarcely discussed in the field of unsaturated soils. In this case, on the basis of the widely-accepted consolidation theory for unsaturated stratum by Fredlund, this paper studies the equal strain consolidation characteristics of unsaturated foundation with drain wells affected by smear effect under time-varying loading (exponential loading as a case). Firstly, with the consideration of corresponding boundary conditions, the governing equations under the equal strain hypothesis are obtained. Afterwards, decoupling process, constant variation method and Fourier series expansion theory are utilized to get the analytical solutions, which are then verified to be credible by means of the finite difference method. Finally, the consolidation patterns of the drainage well foundation modeling in unsaturated soils are studied against hydraulic coefficients, modeling sizes and loading parameter. It reveals that the smear effect can significantly restrain the consolidation process of the foundation by drain wells, while different parameters will lead to various results.

在实际实践中，排水井的建设总是伴随着拖影效应，而在非饱和土壤领域则很少讨论。在这种情况下，根据Fredlund广泛接受的非饱和地层固结理论，研究了时变荷载（以指数荷载为例）下受污泥效应影响的排水井非饱和地基的等应变固结特征。 。首先，考虑相应的边界条件，得到了等应变假设下的控制方程。然后，利用解耦过程，常数变分方法和傅立叶级数展开理论得到解析解，然后通过有限差分法证明该方法是可信的。最后，根据水力系数，模型大小和荷载参数，研究了非饱和土中排水井地基模型的固结模式。结果表明，涂​​抹效应可以显着抑制排水井对地基的固结过程，而不同的参数会导致各种结果。