![]() ![]() In most cases the model does not need to be complete but to be adequate for the purpose of the study. This is the reason that the rock mechanics modelling for rock engineering projects are both science and art. However, the quality and quantity of the supporting data for rock engineering projects can never be complete due to the inherent variability of the rock mass property. Therefore, designing a rock engineering model requires comprehensive knowledge of the geomaterial, engineering properties, and parameters of the rock mass. Rock mechanics projects are getting more complex, larger, and also more demanding for modelling requirements. The rock mass is a fractured porous material which contains fluids like water, oil, and gas which they can significantly affect the in situ stress fields under different temperature and pressure conditions. Due to dynamic movements of the upper crust of the earth, the rock mass is under continuous dynamic stresses this happens through diversity of earth related movements like tectonic movements, earthquakes, glaciation cycles, subsidence, etc. Rock mass is a massively Discontinuous, Inhomogeneous, Anisotropic and Non-Elastic (DIANE) material. Rock mass is a natural geological material, therefore the physical and engineering properties of it have to be established rather than defined through a manufacturing process like steel. 3 Advantages and disadvantages of different numerical methods for rock mechanics. ![]() 2.4 Comparison of FDM and FEM for rock mechanics applications. ![]()
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