Bernardo Caicedo2026-03-222026-03-22199910.16924/revinge.10.6https://doi.org/10.16924/revinge.10.6https://andeanlibrary.org/handle/123456789/63173This paper presents a numerical model for the analysis of underground structures under effective stresses. The problem is addressed by using a threelineal behaviour law with a progressive strength reduction. The system of equations is solved using the finite differences. First of all the model is presented, then, a few applications to the computation of long term strain of Tunnels and satability of water conduction tunnels in rapid dawdown conditions.esHumanitiesComputationGeologyPhysicsMathematicsarticle