The present paper presents numerical analysis of experiments performed in a large polyaxial frame in order to understand the interaction mechanisms between the rock formation and the linings for two specific conditions: stand alone, where lining has limited contact with the formation and the installation of gravel pack. All cases were studied on an artificial cubic rock samples of 30 cm side lengths with a centered hole of 6.0 cm in diameter. The block was then compressed by hydraulic actuators in two perpendicular orientations. In the numerical analysis studies, two different approaches were used: continuum only and coupled continuum-discrete techniques. The paper presents results of the experimental program carried out and of the numerical analysis carried out using the above mentioned techniques. Comments are made regarding the match between experimental and numerical analysis and the adequacy of the latter for modeling the types of sand control measures focused in the work. Copyright 2012 ARMA, American Rock Mechanics Association.