The design and construction of deep, large span caverns in rock mass require careful assessment of excavation sequencing, in-situ stress conditions, and the interaction between the ground and support system. This thesis evaluates excavation strategies for cavern type openings through a two-dimensional finite element analysis. Three different excavation sequences (Radial Progressive Enlargement, Side Drifts, and Top Heading & Bench) are compared across different horizontal to vertical stress ratios. Each sequence is analyzed to evaluate ground response, support demand, and tunnel lining performance. The results offer practical guidance for selecting excavation methods that improve stability, safety, and cost efficiency under high overburden.