The suitable cement concrete pavement for mountainous areas is a form of low-cost cement concrete pavement that uses unconventional graded stones in different proportions in ordinary concrete, allowing the concrete to fully contact the stones and form a stable and well-bonded slab with large particle stones. As large particle stones replace a certain volume of cement concrete, they have good economic performance and are a low-cost form of cement concrete pavement. This study researches the use of ANSYS tools to analyze the influence of geometric dimensions and material properties of rigid pavement structural layers on the mechanical properties of pavement structures.