充填采矿法安全、经济、高效生产的关键在于选取合理的充填体配比和采场结构参数。以某阶段空场嗣后充填采矿法开采矿山为工程背景，基于国内外充填体配比和采场结构参数优化方面的研究，通过损伤理论及充填体和岩体能量匹配分析计算，得出灰砂比 1∶4，1∶6，料浆浓度为68 %、70 %的 4种充填体符合充填要求，考虑成本因素，灰砂比 1∶6，料浆浓度 68 %为该矿山充填体的最优配比。在此基础上，采用 Flac3D软件对所选采场结构参数进行数值模拟，分析最大主应力、最小主应力、位移和塑性区等因素，得出符合要求的采场结构参数为长 44 m、宽 16 m，长 44 m、宽18 m，长50 m、宽16 m，长50 m、宽18 m 4种方案，选择产能最大的方案，即采场长度为50 m、宽度为18 m为该矿山最优采场结构参数。研究成果将为矿山后续生产提供有效参考，帮助矿山安全、高效、经济地回收矿石资源。同时研究方法和成果对类似矿山也有较大的指导意义。

The key to safe, economical, and efficient production by the cut and fill stoping lies in selecting appro⁃priate backfill proportions mass ratios and stope structure parameters. With a mine using the delayed filling methodduring open stoping as the engineering background, Chinese and international research on backfill proportions andstope structure parameter optimization was investigated, and 4 types of fill mass with cement⁃sand ratios of 1∶4 and 1∶6and slurry concentrations of 68 % and 70 % were determined to meet the filling requirements through damage theoryand energy matching analysis between the backfill and rock mass. In view of costs, a cement⁃sand ratio of 1∶6 and aslurry concentration of 68 % were identified as the optimal ratio. On this basis, Flac3D software was used to numericallysimulate the selected stope structure parameters. Factors such as maximum principal stress, minimum principal stress,displacement, and plastic zone were analyzed. Four suitable stope structure parameter schemes were obtained: 44m（length）and 16 m（width）; 44 m（length）and 18 m（width）; 50 m（length）and 16 m（width）; 50 m（length）and18 m（width）. The scheme with the highest production capacity, i.e., a stope length of 50 m and a width of 18 m, wasselected as the optimal stope structure parameter for the mine. The research results will provide an effective referencefor subsequent mine production, helping the mine safely, efficiently, and economically recover ore resources. Mean⁃while, the research methodology and findings hold significant guiding value for similar mines.