Stress field evolution mechanism and regional stress control technology of deep mining roadway

• Establishes a mechanical difference transfer model linking overlying rock caving to roadway deformation, identifying fracture morphology as the key to far-field stress disturbance. • Proposes regional stress control technology that blocks or reduces stress transfer, significantly reducing peak stress and surrounding rock deformation in deep mining roadways. • Provides a quantitative evaluation index for comprehensively analyzing factors influencing roadway stability under strong mining stress. • Offers practical reference for roadway support design in mines affected by severe mining-induced stress.