【摘要】 为进一步提高西藏帮中锌铜矿阶段空场嗣后充填采矿法的生产效率及经济效益，在工程地质力学调查和岩石力学试验基础上对矿区矿岩进行岩体质量分级，并结合矿山采切工程布置分析影响采场稳定性的关键因素；在此基础上应用多种经验稳定图表法优化采场结构参数。结果表明，改进的稳定图表法适应性强，采场跨度可从12.5 m扩大到20 m,仍满足矿山生产安全要求。更多还原

【Abstract】 In Bangzhong Zinc-Copper Mine in Tibet, a mining method consisting of stoping followed by backfilling is adopted to excavate ores. In order to further improve production efficiency and economic benefits in the mine, rock mass quality was classified based on the investigation of geoengineering and geomechanics and rock mechanics test, and key factors influencing stability of stopes were analyzed in combination with the layout of mining and cutting engineering. On this basis, stope structure parameters were optimized by using a variety of empirical stability charts. The results show that the improved stability chart is highly adaptable and a stop with span extended from 12.5 m to 20 m can still meet safety requirement in the mining production.更多还原