Tonglushan Mine has progressed into deep-level mining operations. This study employs an integrated methodology that combines theoretical models with in situ vibration monitoring to characterize blast-induced vibrations in surrounding buildings in the mining region. Vibration monitoring systems with blast seismographs and velocity sensors were deployed in Tongshan Village, adjacent to the open pit's southern perimeter, capturing three sets of medium-depth blasting parameters, including dominant frequency, vibration velocity, and other vibration parameters. The acquired data were benchmarked against national safety thresholds to assess the potential for structural impact. Subsequent application of the Sadovskij empirical formula enabled quantitative modeling of vibration attenuation characteristics and the range of vibration influence. The monitoring results demonstrate: (1) The three medium-deep-hole blasts exhibited dominant frequencies ranging from 9.0 to 50.0 Hz, with peak resultant vibration velocities of 0.036 cm/s, 0.048 cm/s, and 0.043 cm/s at respective monitoring stations, all values remaining well within the prescribed safety limits. (2) Parameter regression yields Sadovskij coefficients K=93.68 and α=1.76, reflecting site-specific blasting conditions and lithology consistent with medium-hard to hard rock classification. These findings confirm that current blasting protocols maintain effective vibration control, safeguarding both environmental stability and structural integrity of adjacent buildings during deep mining operations.

Under the deep geostress environment, ore-rock masses exhibit distinct mechanical properties and fragmentation characteristics that markedly differ from those observed in shallow deposits. To optimize the blasting parameters for fan-shaped medium-deep holes in the deep stope of Tonglushan Copper-Iron Mine, crater blasting tests were conducted at the 9428 stope of the-485 level, following a comprehensive analysis of the ore-rock mechanical properties at this depth. Optimized medium-length hole blasting parameters were systematically derived from a thorough analysis of crater morphology and specific explosive consumption characteristics, with subsequent industrialscale trials confirming their technical validity and operational feasibility. The research findings demonstrate that the rock mass integrity coefficient of the skarn in the 9428 stope of the-485 level at Tonglushan Mine measures 0.39, classifying it as relatively fragmented according to the Standard for Engineering Classification of Rock Mass. Singlehole carter blasting tests revealed optimal parameters including: charge center burial depth（0.400 m）, critical burial depth（0.898 m）,strain energy coefficient (1.69 m/kg^1/3),optimal burial depth ratio（0.445）, optimal crater radius（0.461 m）, and optimal crater volume（0.014 m）. Subsequent double-hole and inclined bench crater tests determined an optimal hole spacing of 0. 809 m and a minimum crater burden of 0.740 m. Applying blasting similarity theory to production-scale fan-shaped medium-deep holes（64 mm diameter）, recommended parameters include: hole bottom spacing（1.3 ~ 1.6 m）, hole mouth spacing（0.8 ~ 1.3 m）, and row spacing（1.1 ~ 1.4 m）.