本文讨论了大直径深孔采矿法优化的原则和方法,结合凡口铅锌矿开采技术条件,论述了采矿方法优化设计步骤和结果。研究目的是:寻求大直径深孔落矿嗣后一次充填采矿法的合理方案,采场和工艺参数优化,以提高矿床开采的技术经济效益。主要研究内容包括: 1.采矿方法适用性分析和方案选择; This paper discusses the principle and method of optimization of large diameter deep hole mining method, and discusses the optimal design steps and results of mining method combined with the mining technology conditions of the Fankou lead-zinc mine. The purpose of this study is to find a reasonable solution for mining the next large-diameter deep-hole mining and the optimization of stope and process parameters so as to improve the technical and economic benefits of the mining. The main research contents include: 1. Mining method applicability analysis and program selection;