为研究露天地下联合开采对盲竖井的稳定性影响，以国内某金铜矿为工程背景，对矿山盲竖井现状进行调研，分析盲竖井可能出现的破坏形式及稳定性影响因素；根据实际地质条件，建立矿区精密化三维数值计算模型，按照露天地下联合开采规划对盲竖井稳定性影响进行模拟分析，从井筒位移、半径收敛等角度系统地研究了露天地下联合开采对盲竖井稳定性的影响；按照相关标准对盲竖井倾斜、曲率和井筒最大轴向变形进行计算与分析。研究结果表明：在露天地下联合开采下，盲竖井不会发生轴向变形、倾斜变形或曲率变形破坏，露天地下联合开采对盲竖井稳定性影响较小，不会影响盲竖井的正常使用，盲竖井可以维持稳定。研究成果可为矿山后续井筒提升、维护及安全生产提供技术支撑。

To study the impact of combined open⁃pit and underground mining on the stability of blind shafts, agold-copper mine in China was taken as the engineering background. The current status of the mine’s blind shafts wasinvestigated, and potential failure modes of the blind shaft and factors influencing its stability were analyzed. A refined3D numerical calculation model of the mining area was established based on actual geological conditions. Simulations wereconducted according to the combined open⁃pit and underground mining plan, so as to analyze the impact on the stability ofthe blind shaft. The influence of combined open⁃pit and underground mining on the stability of the blind shaft wassystematically studied in terms of shaft displacement and radius convergence. The inclination, curvature, and maximumaxial deformation of the blind shaft were calculated and analyzed according to relevant standards. The results indicatethat under combined open⁃pit and underground mining, the blind shaft does not experience axial deformation, inclinationdeformation, or curvature deformation damage. The combined open⁃pit and underground mining has minimal impact onthe stability of the blind shaft and does not affect its normal operation. The blind shaft can maintain stability, andthe research results can provide technical support for subsequent shaft hoisting, maintenance, and safe production inthe mine.