针对井下循环爆破扰动下巷道或采场累积损伤的工程问题，综合运用岩体声波测试技术与Flac3D数值模拟对银山矿采场稳定性进行分析。通过剖析材料疲劳损伤机理和岩体声波检测原理，建立采场岩体完整性分级及累积损伤判别方法。基于多个采场现场声波测试结果，根据爆破前后岩体完整性及累积损伤情况对充填体稳定性进行表征。通过建立 Flac3D采场开挖模型，对采场稳定性进行进一步评价与分析。声波检测结果表明，爆破开采前岩体多数为Ⅲ级，爆破开采后邻近岩体完整性破坏严重，多降至Ⅳ级或Ⅴ级。数值模拟结果显示，模型应力随深度增加而增大，底部达最大值。在采场前区、中区、后区边角处压应力安全系数低，处于不稳定状态。采场前区回采后，充填体和岩石交界面压应力集中不稳定，后区回采后顶板和充填体以压胀破坏为主。研究成果为矿山优化爆破方案、加强支护措施提供了科学依据，对保障矿山安全生产、提高经济效益具有重要意义，也为其他类似矿山的爆破作业提供了参考和借鉴。

In response to the engineering problem of accumulated damage to roadways or stopes under under‑ground cyclic blasting disturbances, this paper comprehensively applies rock mass acoustic emission testing technologyand Flac3D numerical simulation to analyze the stability of the Yinshan Mine stopes. By analyzing the fatigue damagemechanism of materials and the principle of rock mass acoustic emission detection, a classification method for the integrityof rock mass in the stopes and a method for distinguishing cumulative damage are established. Then, based on theacoustic emission test results from multiple stopes on‑site, the stability of the backfill is characterized according to theintegrity and cumulative damage of the rock mass before and after blasting. By establishing a Flac3D stope excavationmodel, the stability of the stopes is further evaluated and analyzed. The acoustic emission detection results show thatbefore blasting, the rock mass is mostly at Level Ⅲ, and after blasting, the integrity of the adjacent rock mass is severelydamaged, mostly reduced to Level Ⅳ or Ⅴ. The numerical simulation results show that the stress in the model increaseswith depth, reaching the maximum at the bottom. The stress safety factor at the corner areas of the front, middle, andrear zones of the stopes is low, indicating instability. After the mining in the front area of the stopes, the pressure stressconcentration at the interface between the backfill and the rock is unstable, and after the mining in the rear area, theroof and backfill are mainly subject to compressive swelling failure. The research results provide a scientific basis foroptimizing the blasting plan and strengthening support measures in the mine, which is of great significance for ensuringthe safety and production of the mine and improving economic benefits. It also provides references for blasting opera‑tions in similar mines.