Numerical simulation of creep-damage-failure in dolomite roof rock of salt cavern reservoirs under multi-stage loading

Key Points

• Creep damage increases in dolomite rock with multi-stage loading, leading to failure risks.
• The simulation shows significant deterioration after 12 loading cycles, emphasizing instability.
• Numerical simulation modeling explores the impact of applied loads on rock integrity over time.
• Understanding damage mechanisms is crucial for the safety of salt cavern reservoir operations.