**6. Conclusions**

The primary focus of this study was unsaturated soils. The most important specific concepts related to this subject were detailed with the goal of enabling their application with the aid of specialized computer programs based on the finite element method.

Several of the concluding comments and recommendations derived from the analysis of the case study in this chapter are detailed as follows:


Finally, for more representative numerical analyses, it is recommended to apply the theory of unsaturated soils in all those situations where the material is in this state. This chapter demonstrated that the considerations for modelling, estimating, and fitting methods of the soil properties functions provide the necessary elements to carry out these analyses in a simple way. Illustrated examples also evaluated the potential of numerical methods to increase the degree of realism in unsaturated soils analysis. Computer programs facilitate the study of transient flow and unsaturated soil conditions, cases that attempt to analytically solve are complicated and laborious. However, it should be recognized that the computer programs now replaces the judgement of an engineer.
